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CVS log for src/sys/ufs/lfs/lfs.h

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Revision 1.204.4.1: download - view: text, markup, annotated - select for diffs
Mon Aug 17 10:30:22 2020 UTC (4 years, 5 months ago) by martin
Branches: netbsd-9
CVS tags: netbsd-9-4-RELEASE, netbsd-9-3-RELEASE, netbsd-9-2-RELEASE, netbsd-9-1-RELEASE
Diff to: previous 1.204: preferred, colored; next MAIN 1.205: preferred, colored
Changes since revision 1.204: +51 -13 lines
Pull up following revision(s) (requested by riastradh in ticket #1050):

	sys/ufs/lfs/lfs_subr.c: revision 1.101
	sys/ufs/lfs/lfs_subr.c: revision 1.102
	sys/ufs/lfs/lfs_inode.c: revision 1.158
	sys/ufs/lfs/lfs_inode.h: revision 1.25
	sys/ufs/lfs/lfs_balloc.c: revision 1.95
	sys/ufs/lfs/lfs_pages.c: revision 1.21
	sys/ufs/lfs/lfs_vnops.c: revision 1.330
	sys/ufs/lfs/lfs_alloc.c: revision 1.140 (patch)
	sys/ufs/lfs/lfs_alloc.c: revision 1.141 (patch)
	lib/libp2k/p2k.c: revision 1.72
	sys/ufs/lfs/lfs.h: revision 1.205
	sys/ufs/lfs/lfs.h: revision 1.206
	sys/ufs/lfs/lfs_segment.c: revision 1.284
	sys/ufs/lfs/lfs.h: revision 1.207
	sys/ufs/lfs/lfs_segment.c: revision 1.285
	sys/ufs/lfs/lfs_debug.c: revision 1.55
	sys/ufs/lfs/lfs_rename.c: revision 1.23
	usr.sbin/dumplfs/dumplfs.c: revision 1.65
	sys/ufs/lfs/lfs_vfsops.c: revision 1.371
	sys/arch/i386/stand/efiboot/bootx64/Makefile: revision 1.3
	sys/ufs/lfs/lfs_vfsops.c: revision 1.372
	sys/ufs/lfs/lfs_vfsops.c: revision 1.373
	sbin/fsck_lfs/pass1.c: revision 1.46
	sys/ufs/lfs/lfs_vnops.c: revision 1.326
	sys/ufs/lfs/lfs_vnops.c: revision 1.327
	sys/ufs/lfs/lfs_vfsops.c: revision 1.375 (patch)
	sys/ufs/lfs/lfs_vnops.c: revision 1.328
	sys/ufs/lfs/lfs_subr.c: revision 1.98
	sys/ufs/lfs/lfs_extern.h: revision 1.116
	sys/ufs/lfs/lfs_vnops.c: revision 1.329
	sys/ufs/lfs/lfs_subr.c: revision 1.99
	sys/ufs/lfs/lfs_extern.h: revision 1.117
	sys/ufs/lfs/lfs_accessors.h: revision 1.49
	sys/ufs/lfs/lfs_extern.h: revision 1.118
	sys/rump/fs/lib/liblfs/Makefile: revision 1.15
	sys/ufs/lfs/lfs_bio.c: revision 1.146 (patch)
	sys/ufs/lfs/lfs_bio.c: revision 1.147
	sys/ufs/lfs/lfs_subr.c: revision 1.100

Fix kassert in lfs by initializing vp first.

Use a marker node to iterate lfs_dchainhd / i_lfs_dchain.

I believe elements can be removed while the lock is dropped,
including the next node we're hanging on to.

Just use VOP_BWRITE for lfs_bwrite_log.
Hope this doesn't cause trouble with vfs_suspend.

Teach lfs to transition ro<->rw.

Prevent new dirops while we issue lfs_flush_dirops.

lfs_flush_dirops assumes (by KASSERT((ip->i_state & IN_ADIROP) == 0))
that vnodes on the dchain will not become involved in active dirops
even while holding no other locks (lfs_lock, v_interlock), so we must
set lfs_writer here.  All other callers already set lfs_writer.

We set fs->lfs_writer++ without explicitly doing lfs_writer_enter
because
(a) we already waited for the dirops to drain, and
(b) we hold lfs_lock and cannot drop it before setting lfs_writer.

Assert lfs_writer where I think we can now prove it.

Serialize access to the splay tree with lfs_lock.

Change some cheap KDASSERT into KASSERT.

Take a reference and fix assertions in lfs_flush_dirops.
Fixes panic:
KASSERT((ip->i_state & IN_ADIROP) == 0) at lfs_vnops.c:1670
lfs_flush_dirops
lfs_check
lfs_setattr
VOP_SETATTR
change_mode
sys_fchmod
syscall

This assertion -- and the assertion that vp->v_uflag has VU_DIROP set
-- is valid only until we release lfs_lock, because we may race with
lfs_unmark_dirop which will remove the nodes and change the flags.

Further, vp itself is valid only as long as it is referenced, which it
is as long as it's on the dchain, but lfs_unmark_dirop drops the
dchain's reference.

Don't lfs_writer_enter while holding v_interlock.

There's no need to lfs_writer_enter at all here, as far as I can see.
lfs_flush_fs will do it for us.

Break deadlock in PR kern/52301.

The lock order is lfs_writer -> lfs_seglock.  The problem in 52301 is
that lfs_segwrite violates this lock order by sometimes doing
lfs_seglock -> lfs_writer, either (a) when doing a checkpoint or (b),
opportunistically, when there are no dirops pending.  Both cases can
deadlock, because dirops sometimes take the seglock (lfs_truncate,
lfs_valloc, lfs_vfree):
(a) There may be dirops pending, and they may be waiting for the
seglock, so we can't wait for them to complete while holding the
seglock.
(b) The test for fs->lfs_dirops == 0 happens unlocked, and the state
may change by the time lfs_writer_enter acquires lfs_lock.

To resolve this in each case:
(a) Do lfs_writer_enter before lfs_seglock, since we will need it
unconditionally anyway.  The worst performance impact of this should
be that some dirops get delayed a little bit.
(b) Create a new lfs_writer_tryenter to use at this point so that the
test for fs->lfs_dirops == 0 and the acquisition of lfs_writer happen
atomically under lfs_lock.

Initialize/destroy lfs_allclean_wakeup in modcmd, not lfs_mountfs.

Fixes reloading lfs.kmod.

In lfs_update, hold lfs_writer around lfs_vflush.

Otherwise, we might do
lfs_vflush
-> lfs_seglock
-> lfs_segwait(SEGM_CKP)
   -> lfs_writer_enter
which is the reverse of the lfs_writer -> lfs_seglock ordering.

Call lfs_orphan in lfs_rename while we're still in the dirop.
lfs_writer_enter can't fail; keep it simple and don't pretend it can.

Assert that mtsleep can't fail either -- it doesn't catch signals and
there's no timeout.

Teach LFS_ORPHAN_NEXTFREE about lfs64.

Dust off the orphan detection code and try to make it work.

Fix !DIAGNOSTIC compile

Fix userland references to LFS_ORPHAN_NEXTFREE.

Forgot to grep for these or do a full distribution build, oops!

Fix missing <sys/evcnt.h> by removing the evcnts instead.

Just wanted to confirm that a race might happen, and indeed it did.
These serve little diagnostic value otherwise.

OR into bp->b_cflags; don't overwrite.

CTASSERT lfs on-disk structure sizes.

Avoid misaligned access to lfs64 on-disk records in memory.
lfs64 directory entries are only 32-bit aligned in order to conserve
space in directory blocks, and we had a hack to stuff a 64-bit inode
in them.  This replaces the hack by __aligned(4) __packed, and goes
further:

1. It's not clear that all the other lfs64 data structures are 64-bit
   aligned on disk to begin with.  We can go through these later and
   upgrade them from
        struct foo64 {
                ...
        } __aligned(4) __packed;
        union foo {
                struct foo64 f64;
                ...
        };
   to
        struct foo64 {
                ...
        };
        union foo {
                struct foo64 f64 __aligned(8);
                ...
        } __aligned(4) __packed;
   if we really want to take advantage of 64-bit memory accesses.
   However, the __aligned(4) __packed must remain on the union
   because:
2. We access even the lfs32 data structures via a union that has
   lfs64 members, and it turns out that compilers will assume access
   through a union with 64-bit aligned members implies the whole
   union has 64-bit alignment, even if we're only accessing a 32-bit
   aligned member.

Fix clang build after packed lfs64 accessor change.

Suppress spurious address-of-packed error in rump lfs too.

Revision 1.203.4.2: download - view: text, markup, annotated - select for diffs
Wed Apr 8 14:09:04 2020 UTC (4 years, 10 months ago) by martin
Branches: phil-wifi
Diff to: previous 1.203.4.1: preferred, colored; branchpoint 1.203: preferred, colored; next MAIN 1.204: preferred, colored
Changes since revision 1.203.4.1: +63 -13 lines
Merge changes from current as of 20200406

Revision 1.208: download - view: text, markup, annotated - select for diffs
Sat Mar 28 01:08:42 2020 UTC (4 years, 10 months ago) by christos
Branches: MAIN
CVS tags: thorpej-ifq-base, thorpej-ifq, thorpej-i2c-spi-conf2-base, thorpej-i2c-spi-conf2, thorpej-i2c-spi-conf-base, thorpej-i2c-spi-conf, thorpej-futex2-base, thorpej-futex2, thorpej-futex-base, thorpej-futex, thorpej-cfargs2-base, thorpej-cfargs2, thorpej-cfargs-base, thorpej-cfargs, thorpej-altq-separation-base, thorpej-altq-separation, phil-wifi-20200421, phil-wifi-20200411, phil-wifi-20200406, perseant-exfatfs-base-20240630, perseant-exfatfs-base, perseant-exfatfs, netbsd-10-base, netbsd-10-1-RELEASE, netbsd-10-0-RELEASE, netbsd-10-0-RC6, netbsd-10-0-RC5, netbsd-10-0-RC4, netbsd-10-0-RC3, netbsd-10-0-RC2, netbsd-10-0-RC1, netbsd-10, cjep_sun2x-base1, cjep_sun2x-base, cjep_sun2x, cjep_staticlib_x-base1, cjep_staticlib_x-base, cjep_staticlib_x, bouyer-xenpvh-base2, bouyer-xenpvh-base1, bouyer-xenpvh-base, bouyer-xenpvh, bouyer-sunxi-drm-base, bouyer-sunxi-drm, HEAD
Diff to: previous 1.207: preferred, colored
Changes since revision 1.207: +13 -1 lines
Comment out some of the CTASSERTS for lint until I fix lint.

Revision 1.207: download - view: text, markup, annotated - select for diffs
Sat Mar 21 06:11:05 2020 UTC (4 years, 10 months ago) by riastradh
Branches: MAIN
Diff to: previous 1.206: preferred, colored
Changes since revision 1.206: +27 -11 lines
Avoid misaligned access to lfs64 on-disk records in memory.

lfs64 directory entries are only 32-bit aligned in order to conserve
space in directory blocks, and we had a hack to stuff a 64-bit inode
in them.  This replaces the hack by __aligned(4) __packed, and goes
further:

1. It's not clear that all the other lfs64 data structures are 64-bit
   aligned on disk to begin with.  We can go through these later and
   upgrade them from

	struct foo64 {
		...
	} __aligned(4) __packed;

	union foo {
		struct foo64 f64;
		...
	};

   to

	struct foo64 {
		...
	};

	union foo {
		struct foo64 f64 __aligned(8);
		...
	} __aligned(4) __packed;

   if we really want to take advantage of 64-bit memory accesses.

   However, the __aligned(4) __packed must remain on the union
   because:

2. We access even the lfs32 data structures via a union that has
   lfs64 members, and it turns out that compilers will assume access
   through a union with 64-bit aligned members implies the whole
   union has 64-bit alignment, even if we're only accessing a 32-bit
   aligned member.

Revision 1.206: download - view: text, markup, annotated - select for diffs
Sat Mar 21 06:09:33 2020 UTC (4 years, 10 months ago) by riastradh
Branches: MAIN
Diff to: previous 1.205: preferred, colored
Changes since revision 1.205: +22 -1 lines
CTASSERT lfs on-disk structure sizes.

Revision 1.204.6.1: download - view: text, markup, annotated - select for diffs
Sat Feb 29 20:21:11 2020 UTC (4 years, 11 months ago) by ad
Branches: ad-namecache
Diff to: previous 1.204: preferred, colored; next MAIN 1.205: preferred, colored
Changes since revision 1.204: +4 -3 lines
Sync with head.

Revision 1.205: download - view: text, markup, annotated - select for diffs
Sun Feb 23 08:49:34 2020 UTC (4 years, 11 months ago) by riastradh
Branches: MAIN
CVS tags: is-mlppp-base, is-mlppp, ad-namecache-base3
Diff to: previous 1.204: preferred, colored
Changes since revision 1.204: +4 -3 lines
Teach LFS_ORPHAN_NEXTFREE about lfs64.

Revision 1.203.4.1: download - view: text, markup, annotated - select for diffs
Mon Jun 10 22:09:58 2019 UTC (5 years, 8 months ago) by christos
Branches: phil-wifi
Diff to: previous 1.203: preferred, colored
Changes since revision 1.203: +2 -2 lines
Sync with HEAD

Revision 1.203.2.1: download - view: text, markup, annotated - select for diffs
Fri Jan 18 08:50:59 2019 UTC (6 years ago) by pgoyette
Branches: pgoyette-compat
CVS tags: pgoyette-compat-merge-20190127
Diff to: previous 1.203: preferred, colored; next MAIN 1.204: preferred, colored
Changes since revision 1.203: +2 -2 lines
Synch with HEAD

Revision 1.204: download - view: text, markup, annotated - select for diffs
Thu Jan 10 06:31:04 2019 UTC (6 years, 1 month ago) by martin
Branches: MAIN
CVS tags: phil-wifi-20191119, phil-wifi-20190609, pgoyette-compat-20190127, pgoyette-compat-20190118, netbsd-9-base, netbsd-9-0-RELEASE, netbsd-9-0-RC2, netbsd-9-0-RC1, isaki-audio2-base, isaki-audio2, ad-namecache-base2, ad-namecache-base1, ad-namecache-base
Branch point for: netbsd-9, ad-namecache
Diff to: previous 1.203: preferred, colored
Changes since revision 1.203: +2 -2 lines
Update comment (overlooked in r1.179).
From José Luis Rodríguez García in PR kern/53849.

Revision 1.136.2.4: download - view: text, markup, annotated - select for diffs
Sun Dec 3 11:39:22 2017 UTC (7 years, 2 months ago) by jdolecek
Branches: tls-maxphys
Diff to: previous 1.136.2.3: preferred, colored; branchpoint 1.136: preferred, colored; next MAIN 1.137: preferred, colored
Changes since revision 1.136.2.3: +581 -631 lines
update from HEAD

Revision 1.201.6.1: download - view: text, markup, annotated - select for diffs
Mon Oct 30 09:29:04 2017 UTC (7 years, 3 months ago) by snj
Branches: netbsd-8
CVS tags: netbsd-8-3-RELEASE, netbsd-8-2-RELEASE, netbsd-8-1-RELEASE, netbsd-8-1-RC1, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, matt-nb8-mediatek-base, matt-nb8-mediatek
Diff to: previous 1.201: preferred, colored; next MAIN 1.202: preferred, colored
Changes since revision 1.201: +2 -9 lines
Pull up following revision(s) (requested by maya in ticket #330):
	sbin/fsck_lfs/inode.c: 1.69
	sbin/fsck_lfs/lfs.c: 1.73
	sbin/fsck_lfs/pass6.c: 1.50
	sbin/fsck_lfs/segwrite.c: 1.46
	sys/ufs/lfs/lfs.h: 1.202-1.203
	sys/ufs/lfs/lfs_accessors.h: 1.48
	sys/ufs/lfs/lfs_alloc.c: 1.136-1.137
	sys/ufs/lfs/lfs_balloc.c: 1.94
	sys/ufs/lfs/lfs_bio.c: 1.141
	sys/ufs/lfs/lfs_extern.h: 1.113
	sys/ufs/lfs/lfs_inode.c: 1.156-1.157
	sys/ufs/lfs/lfs_inode.h: 1.20, 1.21, 1.23
	sys/ufs/lfs/lfs_itimes.c: 1.20
	sys/ufs/lfs/lfs_pages.c: 1.13-1.15
	sys/ufs/lfs/lfs_rename.c: 1.22
	sys/ufs/lfs/lfs_segment.c: 1.270-1.275
	sys/ufs/lfs/lfs_subr.c: 1.94-1.97
	sys/ufs/lfs/lfs_syscalls.c: 1.175
	sys/ufs/lfs/lfs_vfsops.c: 1.360
	sys/ufs/lfs/lfs_vnops.c: 1.316-1.321
	sys/ufs/lfs/ulfs_inode.c: 1.20
	sys/ufs/lfs/ulfs_inode.h: 1.24
	sys/ufs/lfs/ulfs_lookup.c: 1.41
	sys/ufs/lfs/ulfs_quota2.c: 1.31
	sys/ufs/lfs/ulfs_readwrite.c: 1.24
	sys/ufs/lfs/ulfs_vnops.c: 1.49-1.50
Update inode member i_flag --> i_state to keep up with kernel changes
Move definition of IN_ALLMOD near the flag it's a mask for.
Now we can see that it doesn't match all the flags, but changing that will
require more careful thought.
Correct confusion between i_flag and i_flags
These will have to be renamed.
Spotted by Riastradh, thanks!
Add an XXX about the missing flags so it's not buried in a commit
message.
now the XXX count for LFS is 260
Rename i_flag to i_state.
The similarity to i_flags has previously caused errors.
Use continue to denote the no-op loop to match netbsd style
newline for extra clarity.
It isn't safe to drain dirops with seglock held, it'll deadlock if there
are any dirops. drain before grabbing seglock.
lfs_dirops == 0 is always true (as we already drained dirops), so omit
that part of the comparison.
Fixes a lot of LFS deadlocks. PR kern/52301
Many thanks to dholland for help analyzing coredumps
Ifdef out KDASSERT which fires on my machine.
Deduplicate sanity check that seglock is held on segunlock
Revert r1.272 fix to PR kern/52301, the performance hit is making things
unusable.
change lfs_nextsegsleep and lfs_allclean_wakeup to use condvar
XXX had to use lfs_lock in lfs_segwait, removed kernel_lock, is this
appropriate?
fix buffer overflow/KASSERT when cookies are supplied
lfs no longer uses the ffs-style struct direct, use the correct minimum
size
from dholland
XXX more wrong
Consistently use {,UN}MARK_VNODE macros rather than function calls.
Not much point doing anything after a panic call
Ask some question about the code in a XXX comment
XXX question our double-flushing of dirops
Fix typo in comment

Revision 1.160.6.6: download - view: text, markup, annotated - select for diffs
Mon Aug 28 17:53:17 2017 UTC (7 years, 5 months ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160.6.5: preferred, colored; branchpoint 1.160: preferred, colored; next MAIN 1.161: preferred, colored
Changes since revision 1.160.6.5: +4 -9 lines
Sync with HEAD

Revision 1.203: download - view: text, markup, annotated - select for diffs
Wed Jul 26 16:42:37 2017 UTC (7 years, 6 months ago) by maya
Branches: MAIN
CVS tags: tls-maxphys-base-20171202, phil-wifi-base, pgoyette-compat-base, pgoyette-compat-1226, pgoyette-compat-1126, pgoyette-compat-1020, pgoyette-compat-0930, pgoyette-compat-0906, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, nick-nhusb-base-20170825
Branch point for: phil-wifi, pgoyette-compat
Diff to: previous 1.202: preferred, colored
Changes since revision 1.202: +2 -2 lines
change lfs_nextsegsleep and lfs_allclean_wakeup to use condvar

XXX had to use lfs_lock in lfs_segwait, removed kernel_lock, is this
appropriate?

Revision 1.202: download - view: text, markup, annotated - select for diffs
Mon Jun 5 01:01:42 2017 UTC (7 years, 8 months ago) by maya
Branches: MAIN
CVS tags: perseant-stdc-iso10646-base, perseant-stdc-iso10646
Diff to: previous 1.201: preferred, colored
Changes since revision 1.201: +1 -8 lines
Move definition of IN_ALLMOD near the flag it's a mask for.

Now we can see that it doesn't match all the flags, but changing that will
require more careful thought.

Revision 1.199.2.1: download - view: text, markup, annotated - select for diffs
Wed Apr 26 02:53:31 2017 UTC (7 years, 9 months ago) by pgoyette
Branches: pgoyette-localcount
Diff to: previous 1.199: preferred, colored; next MAIN 1.200: preferred, colored
Changes since revision 1.199: +3 -1 lines
Sync with HEAD

Revision 1.199.4.1: download - view: text, markup, annotated - select for diffs
Fri Apr 21 16:54:09 2017 UTC (7 years, 9 months ago) by bouyer
Branches: bouyer-socketcan
Diff to: previous 1.199: preferred, colored; next MAIN 1.200: preferred, colored
Changes since revision 1.199: +3 -1 lines
Sync with HEAD

Revision 1.201: download - view: text, markup, annotated - select for diffs
Sat Apr 1 14:43:00 2017 UTC (7 years, 10 months ago) by maya
Branches: MAIN
CVS tags: prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, pgoyette-localcount-20170426, netbsd-8-base, jdolecek-ncq-base, jdolecek-ncq, bouyer-socketcan-base1
Branch point for: netbsd-8
Diff to: previous 1.200: preferred, colored
Changes since revision 1.200: +2 -1 lines
switch lfs_dirops to condvar (from mtsleep)

Revision 1.200: download - view: text, markup, annotated - select for diffs
Sat Apr 1 01:50:02 2017 UTC (7 years, 10 months ago) by maya
Branches: MAIN
Diff to: previous 1.199: preferred, colored
Changes since revision 1.199: +2 -1 lines
switch lfs_sleepers to condvar (from mtsleep)

Revision 1.160.6.5: download - view: text, markup, annotated - select for diffs
Sat Jul 9 20:25:25 2016 UTC (8 years, 7 months ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160.6.4: preferred, colored; branchpoint 1.160: preferred, colored
Changes since revision 1.160.6.4: +221 -221 lines
Sync with HEAD

Revision 1.199: download - view: text, markup, annotated - select for diffs
Mon Jun 20 03:25:46 2016 UTC (8 years, 7 months ago) by dholland
Branches: MAIN
CVS tags: pgoyette-localcount-base, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, nick-nhusb-base-20170204, nick-nhusb-base-20161204, nick-nhusb-base-20161004, nick-nhusb-base-20160907, localcount-20160914, bouyer-socketcan-base
Branch point for: pgoyette-localcount, bouyer-socketcan
Diff to: previous 1.198: preferred, colored
Changes since revision 1.198: +220 -220 lines
Massedit u_int{8,16,32,64}_t to uint{8,16,32,64}_t. This effectively
merges ufs/dinode.h 1.25.

Revision 1.198: download - view: text, markup, annotated - select for diffs
Sun Jun 19 22:38:23 2016 UTC (8 years, 7 months ago) by dholland
Branches: MAIN
Diff to: previous 1.197: preferred, colored
Changes since revision 1.197: +3 -3 lines
we are actually synced with ufs/dinode.h 1.24 and ufs/dir.h 1.25.

Revision 1.160.6.4: download - view: text, markup, annotated - select for diffs
Sun Dec 27 12:10:19 2015 UTC (9 years, 1 month ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160.6.3: preferred, colored; branchpoint 1.160: preferred, colored
Changes since revision 1.160.6.3: +39 -4 lines
Sync with HEAD (as of 26th Dec)

Revision 1.197: download - view: text, markup, annotated - select for diffs
Thu Nov 26 19:25:54 2015 UTC (9 years, 2 months ago) by dholland
Branches: MAIN
CVS tags: nick-nhusb-base-20160529, nick-nhusb-base-20160422, nick-nhusb-base-20160319, nick-nhusb-base-20151226
Diff to: previous 1.196: preferred, colored
Changes since revision 1.196: +2 -2 lines
Update now-lying comment.

Revision 1.196: download - view: text, markup, annotated - select for diffs
Thu Oct 15 06:24:08 2015 UTC (9 years, 3 months ago) by dholland
Branches: MAIN
Diff to: previous 1.195: preferred, colored
Changes since revision 1.195: +3 -3 lines
For now bitflip the lfs64 magic number.

This will be unflipped when the format is finalized - right now I
still have pending changes to the superblock in mind (to reduce the
number of redundant fields) so anything created now is not future-
proof. However, the code's also nearing being ready for testing; so
I'm doing this before turning it on as a precaution.

Revision 1.195: download - view: text, markup, annotated - select for diffs
Thu Oct 15 06:15:48 2015 UTC (9 years, 3 months ago) by dholland
Branches: MAIN
Diff to: previous 1.194: preferred, colored
Changes since revision 1.194: +12 -1 lines
Move stuff from struct ulfsmount to struct lfs.

Revision 1.194: download - view: text, markup, annotated - select for diffs
Sat Oct 3 08:29:34 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.193: preferred, colored
Changes since revision 1.193: +4 -1 lines
Add lfs_checkword type for reading checksum data out of structures.
This is always uint32_t, but having a name for it both makes things
clearer and avoids confusion about whether it should be 32 or 64 bit.

Note: deployed in only one place (that was erroneously tagged
ondisk32) so far.

Revision 1.193: download - view: text, markup, annotated - select for diffs
Sat Oct 3 08:27:38 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.192: preferred, colored
Changes since revision 1.192: +22 -1 lines
Add an IINFO struct, which is like the FINFO struct but for the inode
blocks portion of the segment summary.

A segment summary block begins with a header (SEGSUM); the rest of the
block contains FINFO structures describing file blocks growing upward
from the bottom (after the header), and IINFO structures describing
inode blocks grown downward from the end of the block. (When they meet
the segment is full regardless of how many blocks might be left.)

IINFO contains just a block number, and until now this information was
handled by just using uint32_t*; switching to a structure will make
the code a lot easier to read, and also make it easier to have 32-bit
and 64-bit versions without making a mess.

This commit just adds the structures and accessors; they'll be
deployed into the code in subsequent commits.

Revision 1.160.6.3: download - view: text, markup, annotated - select for diffs
Tue Sep 22 12:06:17 2015 UTC (9 years, 4 months ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160.6.2: preferred, colored; branchpoint 1.160: preferred, colored
Changes since revision 1.160.6.2: +421 -501 lines
Sync with HEAD

Revision 1.192: download - view: text, markup, annotated - select for diffs
Mon Sep 21 01:24:39 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
CVS tags: nick-nhusb-base-20150921
Diff to: previous 1.191: preferred, colored
Changes since revision 1.191: +3 -4 lines
Oops, I forgot to make the atime in the 64-bit IFILE 64 bits.
Correct that. Incompatible change, but no LFS64 volumes can have been
created yet.

Revision 1.191: download - view: text, markup, annotated - select for diffs
Mon Sep 21 01:24:23 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.190: preferred, colored
Changes since revision 1.190: +34 -5 lines
Add 64-bit directory entry structures, and adjust accessors accordingly.

The LFS64 directory entry has a 64-bit inode number. This is stored as
two 32-bit values to avoid inducing 64-bit alignment requirements.

The exposed type for manipulating directory entries is now
LFS_DIRHEADER, following the same convention as e.g. IFILE and SEGUSE.
(But with LFS_ on it, because.)

Revision 1.190: download - view: text, markup, annotated - select for diffs
Sun Sep 20 04:51:43 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.189: preferred, colored
Changes since revision 1.189: +8 -13 lines
Clean up struct lfs_dirtemplate.

Revision 1.189: download - view: text, markup, annotated - select for diffs
Tue Sep 15 15:02:40 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.188: preferred, colored
Changes since revision 1.188: +40 -61 lines
Remove struct lfs_direct (no longer used) and update the big block
comment about directories.

Revision 1.188: download - view: text, markup, annotated - select for diffs
Tue Sep 15 15:02:01 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.187: preferred, colored
Changes since revision 1.187: +1 -11 lines
Add an accessor function for directory names.

Revision 1.187: download - view: text, markup, annotated - select for diffs
Tue Sep 15 14:59:58 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.186: preferred, colored
Changes since revision 1.186: +8 -5 lines
Move the header part of struct lfs_direct to its own structure.
(lfs_dirheader)

Take the opportunity to improve the directory generation code in
make_lfs.c. (Everything else was unaffected by virtue of using
accessor functions.)

Revision 1.186: download - view: text, markup, annotated - select for diffs
Tue Sep 15 14:58:06 2015 UTC (9 years, 4 months ago) by dholland
Branches: MAIN
Diff to: previous 1.185: preferred, colored
Changes since revision 1.185: +12 -3 lines
Add and use accessor functions for more of the directory entry fields.

Revision 1.185: download - view: text, markup, annotated - select for diffs
Tue Sep 1 06:16:59 2015 UTC (9 years, 5 months ago) by dholland
Branches: MAIN
Diff to: previous 1.184: preferred, colored
Changes since revision 1.184: +3 -25 lines
Add new accessors for the d_type and d_namlen fields of struct lfs_direct.
Napalm the old byteswap access logic for these.

Revision 1.184: download - view: text, markup, annotated - select for diffs
Tue Sep 1 06:15:46 2015 UTC (9 years, 5 months ago) by dholland
Branches: MAIN
Diff to: previous 1.183: preferred, colored
Changes since revision 1.183: +111 -25 lines
Comments on directories.

This includes a description of the struct direct byteswap horrors that
ought to be propagated to ufs/ufs.

Revision 1.183: download - view: text, markup, annotated - select for diffs
Tue Sep 1 06:12:04 2015 UTC (9 years, 5 months ago) by dholland
Branches: MAIN
Diff to: previous 1.182: preferred, colored
Changes since revision 1.182: +2 -2 lines
The ifile's inode number is constant. (it is always 1)

Therefore, storing the value in the superblock and reading it out
again is silly and offers the opportunity for it to become corrupted.
So, don't do that (most of the code already didn't) and use the
existing constant instead. Initialize new 32-bit superblocks with
the value for the sake of old userland programs, but don't keep the
value in the 64-bit superblock at all.

(approved by Margo Seltzer)

Revision 1.182: download - view: text, markup, annotated - select for diffs
Tue Sep 1 06:11:06 2015 UTC (9 years, 5 months ago) by dholland
Branches: MAIN
Diff to: previous 1.181: preferred, colored
Changes since revision 1.181: +51 -51 lines
Make the inode fields in the 64-bit superblock 64 bits wide.
Reasoning as before.

Note that I am not going through and checking for 64->32 truncations
in inode numbers; I'm sure there are quite a few, but that's a project
for later.

Revision 1.181: download - view: text, markup, annotated - select for diffs
Tue Sep 1 06:10:16 2015 UTC (9 years, 5 months ago) by dholland
Branches: MAIN
Diff to: previous 1.180: preferred, colored
Changes since revision 1.180: +3 -2 lines
Add byteswapping to the dinode accessors.

This prevents regressions in the ulfs code when switching to the new
accessors. Note that while adding byteswapping to the other accessors
is straightforward, I haven't done it yet; and that also is not enough
to make LFS_EI work, because there are places lying around that bypass
the accessors for one reason and another and all of them need to be
updated. That is going to have to wait for a later day as LFS_EI is
not on the critical path right now.

Revision 1.180: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:28:01 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.179: preferred, colored
Changes since revision 1.179: +11 -6 lines
Hack up dinode usage to be 64 vs. 32 as needed. Part 1.

(This part changes the native lfs code; the ufs-derived code already
has 64 vs. 32 logic, but as aspects of it are unsafe, and don't
entirely interoperate cleanly with the lfs 64/32 stuff, pass 2 will be
rehashing that.)

Revision 1.179: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:27:18 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.178: preferred, colored
Changes since revision 1.178: +3 -3 lines
Make the inode number in the 64-bit dinode 64 bits wide, like the
other lfs64 on-disk inode numbers; I've been doing that since this is
a new format and we may as well take the opportunity. This does assume
that more than 4 billion files on a single volume becomes desirable;
but for an average file size of 10K all that takes is a 40 TB volume,
and it's not that hard to make one of those these days if you want to
badly enough.

Revision 1.178: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:27:01 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.177: preferred, colored
Changes since revision 1.177: +34 -8 lines
Provide 32-bit and 64-bit versions of FINFO.

This also entailed sorting out part of struct segment, as that
contains a pointer into the current FINFO data.

Revision 1.177: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:26:27 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.176: preferred, colored
Changes since revision 1.176: +42 -11 lines
Make 32-bit and 64-bit versions of SEGSUM.
Also fix some of the FINFO handling as it's closely entangled.

Revision 1.176: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:25:52 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.175: preferred, colored
Changes since revision 1.175: +31 -5 lines
Add IFILE32 and IFILE64 structures for the on-disk ifile entries.
Add and use accessors. There are also a bunch of places that cast and
I hope I've found them all...

Revision 1.175: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:25:04 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.174: preferred, colored
Changes since revision 1.174: +29 -10 lines
Make 32-bit and 64-bit versions of CLEANERINFO.

XXX: while this is written to disk, it seems like much of it would
XXX: be better set up as a commpage shared with the cleaner.

Revision 1.174: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:24:14 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.173: preferred, colored
Changes since revision 1.173: +15 -4 lines
Widen several of the fields of BLOCK_INFO to 64 bits.

Keep the old BLOCK_INFO as BLOCK_INFO_70, and version the fcntls that
use it.

Note that BLOCK_INFO_70 has 64-bit padding issues so that it's
different on 32-bit and 64-bit machines. This has been fixed. However,
BLOCK_INFO also contains a pointer, so compat32 stuff for 32-on-64 is
still needed and doesn't currently exist.

Revision 1.173: download - view: text, markup, annotated - select for diffs
Wed Aug 12 18:23:16 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.172: preferred, colored
Changes since revision 1.172: +2 -2 lines
Fix assorted 64->32 truncations related to BLOCK_INFO.

Also make note of a cleaner limitation: it seems that when it goes to
coalesce discontiguous files, it mallocs an array with one BLOCK_INFO
for every block in the file. Therefore, with 64-bit LFS, on a 32-bit
platform it will be possible to have files large enough to overflow
the cleaner's address space. Currently these will be skipped and cause
warnings via syslog.

At some point someone should rewrite the logic to coalesce files to
use chunks of some reasonable size, as discontinuity between such
chunks is immaterial and mallocing this much space is silly and
fragile. Also, the kernel only accepts up to 65536 blocks at a time
for bmapv and markv, so processing more than this at once probably
isn't useful and may not even work currently. I don't want to change
this around just now as it's not entirely trivial.

Revision 1.172: download - view: text, markup, annotated - select for diffs
Sun Aug 2 18:18:46 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.171: preferred, colored
Changes since revision 1.171: +1 -3 lines
Pass the fs object to LFS_MAX_DADDR so it can check lfs_is64.

Remove some hackish intentional 64->32 truncations next to the checks
using LFS_MAX_DADDR, and tackle the problem they handled in bmap
instead.

The problem: the magic block pointer value UNWRITTEN has magic value
-2, and if it's not handled specifically, uint32 -> uint64 promotion
turns it into 4294967294, which then causes consternation and
monkeyhouse downstream.

What's here is still kind of a hack, but it's a step forward.

Revision 1.171: download - view: text, markup, annotated - select for diffs
Sun Aug 2 18:18:10 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.170: preferred, colored
Changes since revision 1.170: +116 -10 lines
Add a (draft) 64-bit superblock. Make things build again.

Add pieces of support for using both superblock types where
convenient, and specifically to the superblock accessors, but don't
actually enable it anywhere.

First substantive step on PR 50000.

Revision 1.170: download - view: text, markup, annotated - select for diffs
Sun Aug 2 18:12:59 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.169: preferred, colored
Changes since revision 1.169: +2 -2 lines
lfs_cleanint[] in the in-memory superblock needs to have 64-bit entries.

Revision 1.169: download - view: text, markup, annotated - select for diffs
Sun Aug 2 18:10:08 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.168: preferred, colored
Changes since revision 1.168: +4 -4 lines
Second batch of 64 -> 32 truncations in lfs, along with more minor
tidyups and corrections in passing.

Revision 1.168: download - view: text, markup, annotated - select for diffs
Sun Aug 2 18:08:13 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.167: preferred, colored
Changes since revision 1.167: +4 -3 lines
Fix assorted 64 -> 32 truncations in lfs. Also, some minor tidyups and
corrections in passing.

Revision 1.167: download - view: text, markup, annotated - select for diffs
Tue Jul 28 05:13:14 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.166: preferred, colored
Changes since revision 1.166: +1 -10 lines
Move struct salfs back inside libsa now that lfs_accessors.h is separate.

Revision 1.166: download - view: text, markup, annotated - select for diffs
Tue Jul 28 05:09:34 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.165: preferred, colored
Changes since revision 1.165: +1 -449 lines
Add a new lfs header file: lfs_accessors.h.

This contains all the accessor functions and macros out of lfs.h.
Add an include of lfs_accessors.h after all uses of lfs.h... except
for code that wants to define its own struct lfs-alike that the
accessors are supposed to play along with. For these, set STRUCT_LFS
and include lfs_accessors.h after the necessary structure has been
defined, so that lfs_accessors.h can emit functions in terms of it.

Revision 1.165: download - view: text, markup, annotated - select for diffs
Fri Jul 24 06:59:32 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.164: preferred, colored
Changes since revision 1.164: +55 -59 lines
More lfs superblock accessors.
(This changes the rest of the code over; all the accessors were
already added.)

The difference between this commit and the previous one is arbitrary,
but the previous one passed the regression tests on its own so I'm
keeping it separate to help with any bisections that might be needed
in the future.

Revision 1.164: download - view: text, markup, annotated - select for diffs
Fri Jul 24 06:56:42 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.163: preferred, colored
Changes since revision 1.163: +194 -106 lines
Switch to accessor functions for elements of the LFS on-disk
superblock. This will allow switching between 32/64 bit forms on the
fly; it will also allow handling LFS_EI reasonably tidily. (That
currently doesn't work on the superblock.)

It also gets rid of cpp abuse in the form of fake structure member
macros.

Also, instead of doing sleep/wakeup on &lfs_avail and &lfs_nextseg
inside the on-disk superblock, add extra elements to the in-memory
struct lfs for this. (XXX: these should be changed to condvars, but
not right now)

XXX: this migrates a structure needed by the lfs code in libsa (struct
salfs) into lfs.h, where it doesn't belong, but for the time being
this is necessary in order to allow the accessors (and the various
lfs macros and other goop that relies on them) to compile.

Revision 1.163: download - view: text, markup, annotated - select for diffs
Fri Jul 24 06:51:46 2015 UTC (9 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.162: preferred, colored
Changes since revision 1.162: +3 -2 lines
ulfs2_dinode, having never actually been used with lfs, doesn't have a
di_inumber field. Fix that. First preliminary step on PR 50000.

Revision 1.160.6.2: download - view: text, markup, annotated - select for diffs
Sat Jun 6 14:40:30 2015 UTC (9 years, 8 months ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160.6.1: preferred, colored; branchpoint 1.160: preferred, colored
Changes since revision 1.160.6.1: +4 -4 lines
Sync with HEAD

Revision 1.162: download - view: text, markup, annotated - select for diffs
Sun May 31 15:44:31 2015 UTC (9 years, 8 months ago) by hannken
Branches: MAIN
CVS tags: nick-nhusb-base-20150606
Diff to: previous 1.161: preferred, colored
Changes since revision 1.161: +4 -4 lines
Use VFS_PROTOS() for lfs.
Rename conflicting struct lfs field "lfs_start" to "lfs_s0addr".

No functional change.

Revision 1.160.6.1: download - view: text, markup, annotated - select for diffs
Mon Apr 6 15:18:32 2015 UTC (9 years, 10 months ago) by skrll
Branches: nick-nhusb
Diff to: previous 1.160: preferred, colored
Changes since revision 1.160: +4 -4 lines
Sync with HEAD

Revision 1.161: download - view: text, markup, annotated - select for diffs
Sat Mar 28 19:24:05 2015 UTC (9 years, 10 months ago) by maxv
Branches: MAIN
CVS tags: nick-nhusb-base-20150406
Diff to: previous 1.160: preferred, colored
Changes since revision 1.160: +4 -4 lines
Remove the 'cred' argument from bread(). Remove a now unused var in
ffs_snapshot.c. Update the man page accordingly.

ok hannken@

Revision 1.136.2.3: download - view: text, markup, annotated - select for diffs
Wed Aug 20 00:04:44 2014 UTC (10 years, 5 months ago) by tls
Branches: tls-maxphys
Diff to: previous 1.136.2.2: preferred, colored; branchpoint 1.136: preferred, colored
Changes since revision 1.136.2.2: +19 -53 lines
Rebase to HEAD as of a few days ago.

Revision 1.134.2.4: download - view: text, markup, annotated - select for diffs
Thu May 22 11:41:19 2014 UTC (10 years, 8 months ago) by yamt
Branches: yamt-pagecache
Diff to: previous 1.134.2.3: preferred, colored; branchpoint 1.134: preferred, colored; next MAIN 1.135: preferred, colored
Changes since revision 1.134.2.3: +399 -309 lines
sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

Revision 1.157.2.1: download - view: text, markup, annotated - select for diffs
Wed Aug 28 23:59:38 2013 UTC (11 years, 5 months ago) by rmind
Branches: rmind-smpnet
Diff to: previous 1.157: preferred, colored; next MAIN 1.158: preferred, colored
Changes since revision 1.157: +19 -51 lines
sync with head

Revision 1.160: download - view: text, markup, annotated - select for diffs
Sun Jul 28 01:22:55 2013 UTC (11 years, 6 months ago) by dholland
Branches: MAIN
CVS tags: yamt-pagecache-base9, tls-maxphys-base, tls-earlyentropy-base, tls-earlyentropy, rmind-smpnet-nbase, rmind-smpnet-base, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, nick-nhusb-base, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7
Branch point for: nick-nhusb
Diff to: previous 1.159: preferred, colored
Changes since revision 1.159: +7 -1 lines
Bring in a copy of ffs_quota2_mount() for reference.
Add stuff to struct lfs that it needs to initialize.
Clear these fields in mount as there's no on-disk support for quota2;
but this increases the chances of being able to add it (or something
like it) in the future.

Revision 1.159: download - view: text, markup, annotated - select for diffs
Sun Jul 28 01:10:49 2013 UTC (11 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.158: preferred, colored
Changes since revision 1.158: +13 -1 lines
Migrate the miscellaneous ulfs-level info from struct ulfsmount to
struct lfs.

Put them inside #ifdef _KERNEL there. They are not the only such
members, gross as that is. Unfortunately, moving struct lfs to
lfs_kernel.h does not work.

Revision 1.158: download - view: text, markup, annotated - select for diffs
Sun Jul 28 01:05:52 2013 UTC (11 years, 6 months ago) by dholland
Branches: MAIN
Diff to: previous 1.157: preferred, colored
Changes since revision 1.157: +1 -51 lines
Add lfs_kernel.h for declarations that don't need to be exposed to userland.

lfs currently has the following headers:
   lfs.h - on-disk structures and stuff needed for userlevel tools
   lfs_inode.h - additional restricted materials for userlevel tools
                 that operate the fs (newfs_lfs, fsck_lfs, lfs_cleanerd)
   lfs_kernel.h - stuff needed only in the kernel

and the following legacy headers that are expected to be mopped up and
folded into one of the above:
   lfs_extern.h - function prototypes
   ulfs_bswap.h - endian-independent support
   ulfs_dinode.h - now contains very little
   ulfs_dirhash.h - dirhash support
   ulfs_extattr.h - extattr support
   ulfs_extern.h - more function prototypes
   ulfs_inode.h - assorted kernel-only declarations
   ulfs_quota.h - quota support
   ulfs_quota1.h - more quota support
   ulfs_quota2.h - more quota support
   ulfs_quotacommon.h - more quota support
   ulfsmount.h - legacy copy of ufsmount material

Revision 1.157: download - view: text, markup, annotated - select for diffs
Fri Jun 28 16:14:06 2013 UTC (11 years, 7 months ago) by matt
Branches: MAIN
CVS tags: riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2
Branch point for: rmind-smpnet
Diff to: previous 1.156: preferred, colored
Changes since revision 1.156: +1 -3 lines
Remove duplicate define of LFS_MAXNAMLEN

Revision 1.136.2.2: download - view: text, markup, annotated - select for diffs
Sun Jun 23 06:18:39 2013 UTC (11 years, 7 months ago) by tls
Branches: tls-maxphys
Diff to: previous 1.136.2.1: preferred, colored; branchpoint 1.136: preferred, colored
Changes since revision 1.136.2.1: +382 -258 lines
resync from head

Revision 1.156: download - view: text, markup, annotated - select for diffs
Sun Jun 23 02:07:04 2013 UTC (11 years, 7 months ago) by dholland
Branches: MAIN
Diff to: previous 1.155: preferred, colored
Changes since revision 1.155: +2 -2 lines
typo in comment

Revision 1.155: download - view: text, markup, annotated - select for diffs
Wed Jun 19 17:51:26 2013 UTC (11 years, 7 months ago) by dholland
Branches: MAIN
Diff to: previous 1.154: preferred, colored
Changes since revision 1.154: +3 -3 lines
Rename ambiguous macros:
   MAXDIRSIZE -> UFS_MAXDIRSIZE or LFS_MAXDIRSIZE
   NINDIR -> FFS_NINDIR, EXT2_NINDIR, LFS_NINDIR, or MFS_NINDIR
   INOPB -> FFS_INOPB, LFS_INOPB
   INOPF -> FFS_INOPF, LFS_INOPF
   blksize -> ffs_blksize, ext2_blksize, or lfs_blksize
   sblksize -> ffs_blksize

These are not the only ambiguously defined filesystem macros, of
course, there's a pile more. I may not have found all the ambiguous
definitions of blksize(), too, as there are a lot of other things
called 'blksize' in the system.

Revision 1.154: download - view: text, markup, annotated - select for diffs
Tue Jun 18 18:18:58 2013 UTC (11 years, 7 months ago) by christos
Branches: MAIN
Diff to: previous 1.153: preferred, colored
Changes since revision 1.153: +37 -37 lines
Prefix most of the cpp macros with lfs_ and LFS_ to avoid conflicts with ffs.
This was done so that boot blocks that want to compile both FFS and LFS in
the same file work.

Revision 1.153: download - view: text, markup, annotated - select for diffs
Tue Jun 18 08:01:00 2013 UTC (11 years, 7 months ago) by dholland
Branches: MAIN
Diff to: previous 1.152: preferred, colored
Changes since revision 1.152: +2 -193 lines
Tuck away a bunch of symbols that don't need to be public.

Revision 1.152: download - view: text, markup, annotated - select for diffs
Sun Jun 9 00:13:55 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.151: preferred, colored
Changes since revision 1.151: +1 -36 lines
Move struct lfs_inode_ext to lfs_inode.h; it doesn't need to be public.

Revision 1.151: download - view: text, markup, annotated - select for diffs
Sat Jun 8 23:04:49 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.150: preferred, colored
Changes since revision 1.150: +3 -9 lines
Remove stale union and accessor macros.

Revision 1.150: download - view: text, markup, annotated - select for diffs
Sat Jun 8 22:23:52 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.149: preferred, colored
Changes since revision 1.149: +2 -2 lines
ulfs_dir.h has been emptied; remove it.

Revision 1.149: download - view: text, markup, annotated - select for diffs
Sat Jun 8 22:19:01 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.148: preferred, colored
Changes since revision 1.148: +5 -1 lines
Move a comment to lfs.h that belongs better there.

Revision 1.148: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:16:30 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.147: preferred, colored
Changes since revision 1.147: +83 -1 lines
As nearly all the content of ulfs_dir.h and ulfs_dinode.h has migrated
to lfs.h, propagate the copyright notices too.

Revision 1.147: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:15:12 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.146: preferred, colored
Changes since revision 1.146: +15 -1 lines
Move more symbols to lfs.h:
   LFS_DIRBLKSIZ
   LFS_DIRECTSIZ
   LFS_DIRSIZ
   LFS_OLDDIRFMT
   LFS_NEWDIRFMT
   LFS_IFTODT
   LFS_DTTOIF
   ULFS{,1,2}_MAXSYMLINKLEN

Revision 1.146: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:14:46 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.145: preferred, colored
Changes since revision 1.145: +58 -1 lines
DIRBLKSIZ -> LFS_DIRBLKSIZ
DIRECTSIZ -> LFS_DIRECTSIZ
DIRSIZ -> LFS_DIRSIZ
OLDDIRFMT -> LFS_OLDDIRFMT
NEWDIRFMT -> LFS_NEWDIRFMT
IFTODT -> LFS_IFTODT
DTTOIF -> LFS_DTTOIF

Revision 1.145: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:13:33 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.144: preferred, colored
Changes since revision 1.144: +83 -1 lines
Move stuff to lfs.h that's needed by userland:
   LFS_DT_*
   ULFS_ROOTINO
   ULFS_WINO
   struct lfs_direct
   struct lfs_dirtemplate
   struct lfs_odirtemplate
   struct ulfs_args

Also fix FFS_MAXNAMLEN -> LFS_MAXNAMLEN in several places.

Revision 1.144: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:11:49 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.143: preferred, colored
Changes since revision 1.143: +12 -1 lines
Now move LFS_IFMT and friends from ulfs_dinode.h to lfs.h.

Revision 1.143: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:09:35 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.142: preferred, colored
Changes since revision 1.142: +80 -2 lines
Move the dinode (on-disk inode) structures to lfs.h, since they are
and will be obviously required by userland tools that need to read
the on-disk structures.

Also, DINODE{1,2}_SIZE -> LFS_DINODE{1,2}_SIZE.

Revision 1.142: download - view: text, markup, annotated - select for diffs
Sat Jun 8 02:04:31 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.141: preferred, colored
Changes since revision 1.141: +14 -1 lines
Split the definitions suitable for userland out of ulfs_inode.h into
lfs_inode.h. Since fsck_lfs, newfs_lfs, and lfs_cleanerd want to reuse
the inode structure for their own internal use, and some of them share
parts of the kernel code as well, the best way forward is to provide a
relatively sanitized header that doesn't bring in stray material.

Shuffle a few other definitions around so that lfs_inode.h depends
only on lfs.h.

Install lfs_inode.h into /usr/include.

Revision 1.141: download - view: text, markup, annotated - select for diffs
Thu Jun 6 00:52:14 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.140: preferred, colored
Changes since revision 1.140: +4 -4 lines
Fix some exposed symbols:
   LOSTFOUNDINO -> LFS_LOSTFOUNDINO
   struct ufid -> struct ulfs_ufid

Revision 1.140: download - view: text, markup, annotated - select for diffs
Thu Jun 6 00:51:50 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.139: preferred, colored
Changes since revision 1.139: +17 -5 lines
Cleanups to reduce symbol and header exposure:
   - move struct ufid from ulfs_inode.h to lfs.h
   - lfs.h needs sys/mount.h and sys/pool.h
   - ulfs_quota2_subr.c needs lfs_inode.h
   - remove ulfs_inode.h from lfs.h in favor of ulfs_dinode.h
   - move ULFS_NDADDR, ULFS_NIADDR, ULFS_NXADDR from ulfs_dinode.h to lfs.h
   - remove ulfs_dinode.h from lfs.h
   - add lfs.h to ulfs_dinode.h

Revision 1.139: download - view: text, markup, annotated - select for diffs
Thu Jun 6 00:51:25 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.138: preferred, colored
Changes since revision 1.138: +4 -1 lines
Remove stray references to ext2fs, chfs, ffs, and mfs.

Revision 1.138: download - view: text, markup, annotated - select for diffs
Thu Jun 6 00:48:04 2013 UTC (11 years, 8 months ago) by dholland
Branches: MAIN
Diff to: previous 1.137: preferred, colored
Changes since revision 1.137: +9 -9 lines
Split lfs from ufs step 4:

Massedit all ufs symbols to be "ulfs" instead, to make sure there are
no conflicts with ufs. Confirmed with grep.

(This required changing a few comments that maybe should have been
left alone to say "ulfs", but we'll survive that.)

Revision 1.136.2.1: download - view: text, markup, annotated - select for diffs
Mon Feb 25 00:30:16 2013 UTC (11 years, 11 months ago) by tls
Branches: tls-maxphys
Diff to: previous 1.136: preferred, colored
Changes since revision 1.136: +8 -8 lines
resync with head

Revision 1.134.2.3: download - view: text, markup, annotated - select for diffs
Wed Jan 23 00:06:33 2013 UTC (12 years ago) by yamt
Branches: yamt-pagecache
CVS tags: yamt-pagecache-tag8
Diff to: previous 1.134.2.2: preferred, colored; branchpoint 1.134: preferred, colored
Changes since revision 1.134.2.2: +8 -8 lines
sync with head

Revision 1.137: download - view: text, markup, annotated - select for diffs
Tue Jan 22 09:39:17 2013 UTC (12 years ago) by dholland
Branches: MAIN
CVS tags: yamt-pagecache-base8, khorben-n900, agc-symver-base, agc-symver
Diff to: previous 1.136: preferred, colored
Changes since revision 1.136: +8 -8 lines
Stuff UFS_ in front of a few of ufs's symbols to reduce namespace
pollution. Specifically:
   ROOTINO -> UFS_ROOTINO
   WINO -> UFS_WINO
   NXADDR -> UFS_NXADDR
   NDADDR -> UFS_NDADDR
   NIADDR -> UFS_NIADDR
   MAXSYMLINKLEN -> UFS_MAXSYMLINKLEN
   MAXSYMLINKLEN_UFS[12] -> UFS[12]_MAXSYMLINKLEN (for consistency)

Sort out ext2fs's misuse of NDADDR and NIADDR; fortunately, these have
the same values in ext2fs and ffs.

No functional change intended.

Revision 1.134.2.2: download - view: text, markup, annotated - select for diffs
Tue Apr 17 00:08:56 2012 UTC (12 years, 9 months ago) by yamt
Branches: yamt-pagecache
Diff to: previous 1.134.2.1: preferred, colored; branchpoint 1.134: preferred, colored
Changes since revision 1.134.2.1: +36 -13 lines
sync with head

Revision 1.135.2.1: download - view: text, markup, annotated - select for diffs
Sat Mar 17 17:40:07 2012 UTC (12 years, 10 months ago) by bouyer
Branches: netbsd-6
CVS tags: netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus
Diff to: previous 1.135: preferred, colored; next MAIN 1.136: preferred, colored
Changes since revision 1.135: +16 -6 lines
Pull up following revision(s) (requested by perseant in ticket #116):
	sys/ufs/lfs/lfs_alloc.c: revision 1.112
	tests/fs/vfs/t_rmdirrace.c: revision 1.9
	tests/fs/vfs/t_renamerace.c: revision 1.25
	sys/ufs/lfs/lfs_vnops.c: revision 1.240
	sys/ufs/lfs/lfs_segment.c: revision 1.224
	sys/ufs/lfs/lfs_bio.c: revision 1.122
	sys/ufs/lfs/lfs_vfsops.c: revision 1.294
	sbin/newfs_lfs/make_lfs.c: revision 1.19
	sys/ufs/lfs/lfs.h: revision 1.136
Pass t_renamerace and t_rmdirrace tests.
Adapt dholland@'s fix to ufs_rename to fix PR kern/43582.  Address several
other MP locking issues discovered during the course of investigating the
same problem.
Removed extraneous vn_lock() calls on the Ifile, since the Ifile writes
are controlled by the segment lock.
Fix PR kern/45982 by deemphasizing the estimate of how much metadata
will fill the empty space on disk when the disk is nearly empty
(t_renamerace crates a lot of inode blocks on a tiny empty disk).

Revision 1.134.6.1: download - view: text, markup, annotated - select for diffs
Sat Feb 18 07:35:53 2012 UTC (12 years, 11 months ago) by mrg
Branches: jmcneill-usbmp
Diff to: previous 1.134: preferred, colored; next MAIN 1.135: preferred, colored
Changes since revision 1.134: +36 -13 lines
merge to -current.

Revision 1.136: download - view: text, markup, annotated - select for diffs
Thu Feb 16 02:47:55 2012 UTC (12 years, 11 months ago) by perseant
Branches: MAIN
CVS tags: yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base10
Branch point for: tls-maxphys
Diff to: previous 1.135: preferred, colored
Changes since revision 1.135: +16 -6 lines
Pass t_renamerace and t_rmdirrace tests.

Adapt dholland@'s fix to ufs_rename to fix PR kern/43582.  Address several
other MP locking issues discovered during the course of investigating the
same problem.

Removed extraneous vn_lock() calls on the Ifile, since the Ifile writes
are controlled by the segment lock.

Fix PR kern/45982 by deemphasizing the estimate of how much metadata
will fill the empty space on disk when the disk is nearly empty
(t_renamerace crates a lot of inode blocks on a tiny empty disk).

Revision 1.135: download - view: text, markup, annotated - select for diffs
Mon Jan 2 22:10:44 2012 UTC (13 years, 1 month ago) by perseant
Branches: MAIN
CVS tags: netbsd-6-base
Branch point for: netbsd-6
Diff to: previous 1.134: preferred, colored
Changes since revision 1.134: +26 -13 lines

* Remove PGO_RECLAIM during lfs_putpages()' call to genfs_putpages(),
  to avoid a live lock in the latter when reclaiming a vnode with
  dirty pages.

* Add a new segment flag, SEGM_RECLAIM, to note when a segment is
  being written for vnode reclamation, and record which inode is being
  reclaimed, to aid in forensic debugging.

* Add a new segment flag, SEGM_SINGLE, so that opportunistic writes
  can write a single segment's worth of blocks and then stop, rather
  than writing all the way up to the cleaner's reserved number of
  segments.

* Add assert statements to check mutex ownership is the way it ought
  to be, mostly in lfs_putpages; fix problems uncovered by this.

* Don't clear VU_DIROP until the inode actually makes its way to disk,
  avoiding a problem where dirop inodes could become separated
  (uncovered by a modified version of the "ckckp" forensic regression
  test).

* Move the vfs_getopsbyname() call into lfs_writerd.  Prepare code to
  make lfs_writerd notice when there are no more LFSs, and exit losing
  the reference, so that, in theory, the module can be unloaded.  This
  code is not enabled, since it causes a crash on exit.

* Set IN_MODIFIED on inodes flushed by lfs_flush_dirops.  Really we
  only need to set IN_MODIFIED if we are going to write them again
  (e.g., to write pages); need to think about this more.

Finally, several changes to help avoid "no clean segments" panics:

* In lfs_bmapv, note when a vnode is loaded only to discover whether
  its blocks are live, so it can immediately be recycled.  Since the
  cleaner will try to choose ~empty segments over full ones, this
  prevents the cleaner from (1) filling the vnode cache with junk, and
  (2) squeezing any unwritten writes to disk and running the fs out of
  segments.

* Overestimate by half the amount of metadata that will be required
  to fill the clean segments.  This will make the disk appear smaller,
  but should help avoid a "no clean segments" panic.

* Rearrange lfs_writerd.  In particular, lfs_writerd now pays
  attention to the number of clean segments available, and holds off
  writing until there is room.

Revision 1.134.2.1: download - view: text, markup, annotated - select for diffs
Wed Nov 30 14:33:46 2011 UTC (13 years, 2 months ago) by yamt
Branches: yamt-pagecache
Diff to: previous 1.134: preferred, colored
Changes since revision 1.134: +2 -2 lines
make lfs another pager specific flag so that it won't be affected by
an nfs hack in genfs.

Revision 1.134: download - view: text, markup, annotated - select for diffs
Mon Jul 11 08:27:40 2011 UTC (13 years, 7 months ago) by hannken
Branches: MAIN
CVS tags: yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base, jmcneill-audiomp3-base, jmcneill-audiomp3
Branch point for: yamt-pagecache, jmcneill-usbmp
Diff to: previous 1.133: preferred, colored
Changes since revision 1.133: +2 -2 lines
Change VOP_BWRITE() to take a vnode as its first argument like all other
VOPs do.  Layered file systems no longer have to modify bp->b_vp and run
into trouble when an async VOP_BWRITE() uses the wrong vnode.

- change all occurences of VOP_BWRITE(bp) to VOP_BWRITE(bp->b_vp, bp).
- remove layer_bwrite().
- welcome to 5.99.55

Adresses PR kern/38762 panic: vwakeup: neg numoutput

No objections from tech-kern@.

Revision 1.132.2.1: download - view: text, markup, annotated - select for diffs
Fri Apr 30 14:44:35 2010 UTC (14 years, 9 months ago) by uebayasi
Branches: uebayasi-xip
Diff to: previous 1.132: preferred, colored; next MAIN 1.133: preferred, colored
Changes since revision 1.132: +16 -17 lines
Sync with HEAD.

Revision 1.125.10.4: download - view: text, markup, annotated - select for diffs
Thu Mar 11 15:04:44 2010 UTC (14 years, 11 months ago) by yamt
Branches: yamt-nfs-mp
Diff to: previous 1.125.10.3: preferred, colored; branchpoint 1.125: preferred, colored; next MAIN 1.126: preferred, colored
Changes since revision 1.125.10.3: +31 -22 lines
sync with head

Revision 1.133: download - view: text, markup, annotated - select for diffs
Tue Feb 16 23:20:30 2010 UTC (14 years, 11 months ago) by mlelstv
Branches: MAIN
CVS tags: yamt-nfs-mp-base9, yamt-nfs-mp-base11, yamt-nfs-mp-base10, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, uebayasi-xip-base1, rmind-uvmplock-nbase, rmind-uvmplock-base, rmind-uvmplock, matt-mips64-premerge-20101231, jruoho-x86intr-base, jruoho-x86intr, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Diff to: previous 1.132: preferred, colored
Changes since revision 1.132: +16 -17 lines
Three changes in a single commit.

- drop the notion of frags (LFS fragments) vs fsb (FFS fragments)
  The code uses a complicated unity function that just makes the
  code difficult to understand.

- support larger sector sizes. Fix disk address computations
  to use DEV_BSIZE in the kernel as required by device drivers
  and to use sector sizes in userland.

- Fix several locking bugs in lfs_bio.c and lfs_subr.c.

Revision 1.132: download - view: text, markup, annotated - select for diffs
Thu Nov 5 17:16:36 2009 UTC (15 years, 3 months ago) by pooka
Branches: MAIN
CVS tags: uebayasi-xip-base, matt-premerge-20091211
Branch point for: uebayasi-xip
Diff to: previous 1.131: preferred, colored
Changes since revision 1.131: +9 -4 lines
... actually, define compat only for the kernel.  Userlandia should
see only one version of the interfaces.

Revision 1.131: download - view: text, markup, annotated - select for diffs
Thu Nov 5 16:59:55 2009 UTC (15 years, 3 months ago) by pooka
Branches: MAIN
Diff to: previous 1.130: preferred, colored
Changes since revision 1.130: +3 -2 lines
Include compat/sys/time_types.h instead of compat/sys/time.h.
Fixes lint drama with interface name collisions.

Revision 1.130: download - view: text, markup, annotated - select for diffs
Thu Nov 5 11:54:49 2009 UTC (15 years, 3 months ago) by pooka
Branches: MAIN
Diff to: previous 1.129: preferred, colored
Changes since revision 1.129: +4 -13 lines
Include compat code by default.

Revision 1.129: download - view: text, markup, annotated - select for diffs
Thu Oct 29 17:10:32 2009 UTC (15 years, 3 months ago) by christos
Branches: MAIN
CVS tags: jym-xensuspend-nbase
Diff to: previous 1.128: preferred, colored
Changes since revision 1.128: +18 -5 lines
PR/42246: NAKAJIMA Yoshihiro: provide COMPAT_50 for LFS

Revision 1.125.10.3: download - view: text, markup, annotated - select for diffs
Wed Aug 19 18:48:34 2009 UTC (15 years, 5 months ago) by yamt
Branches: yamt-nfs-mp
Diff to: previous 1.125.10.2: preferred, colored; branchpoint 1.125: preferred, colored
Changes since revision 1.125.10.2: +2 -2 lines
sync with head.

Revision 1.127.12.1: download - view: text, markup, annotated - select for diffs
Thu Jul 23 23:33:03 2009 UTC (15 years, 6 months ago) by jym
Branches: jym-xensuspend
Diff to: previous 1.127: preferred, colored; next MAIN 1.128: preferred, colored
Changes since revision 1.127: +2 -2 lines
Sync with HEAD.

Revision 1.128: download - view: text, markup, annotated - select for diffs
Sun Jul 19 03:39:14 2009 UTC (15 years, 6 months ago) by dholland
Branches: MAIN
CVS tags: yamt-nfs-mp-base8, yamt-nfs-mp-base7, jymxensuspend-base
Diff to: previous 1.127: preferred, colored
Changes since revision 1.127: +2 -2 lines
typo in comment

Revision 1.125.10.2: download - view: text, markup, annotated - select for diffs
Mon May 4 08:14:38 2009 UTC (15 years, 9 months ago) by yamt
Branches: yamt-nfs-mp
Diff to: previous 1.125.10.1: preferred, colored; branchpoint 1.125: preferred, colored
Changes since revision 1.125.10.1: +4 -4 lines
sync with head.

Revision 1.126.2.1: download - view: text, markup, annotated - select for diffs
Mon Jun 23 04:32:05 2008 UTC (16 years, 7 months ago) by wrstuden
Branches: wrstuden-revivesa
Diff to: previous 1.126: preferred, colored; next MAIN 1.127: preferred, colored
Changes since revision 1.126: +4 -4 lines
Sync w/ -current. 34 merge conflicts to follow.

Revision 1.125.6.1: download - view: text, markup, annotated - select for diffs
Mon Jun 2 13:24:35 2008 UTC (16 years, 8 months ago) by mjf
Branches: mjf-devfs2
Diff to: previous 1.125: preferred, colored; next MAIN 1.126: preferred, colored
Changes since revision 1.125: +4 -11 lines
Sync with HEAD.

Revision 1.125.8.1: download - view: text, markup, annotated - select for diffs
Sun May 18 12:35:55 2008 UTC (16 years, 8 months ago) by yamt
Branches: yamt-pf42
Diff to: previous 1.125: preferred, colored; next MAIN 1.126: preferred, colored
Changes since revision 1.125: +4 -11 lines
sync with head.

Revision 1.127: download - view: text, markup, annotated - select for diffs
Fri May 16 09:22:00 2008 UTC (16 years, 9 months ago) by hannken
Branches: MAIN
CVS tags: yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-nfs-mp-base6, yamt-nfs-mp-base5, yamt-nfs-mp-base4, yamt-nfs-mp-base3, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, nick-hppapmap-base4, nick-hppapmap-base3, nick-hppapmap-base2, nick-hppapmap-base, nick-hppapmap, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, mjf-devfs2-base, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-base2, jym-xensuspend-base, hpcarm-cleanup-nbase, haad-nbase2, haad-dm-base2, haad-dm-base1, haad-dm-base, haad-dm, ad-audiomp2-base, ad-audiomp2
Branch point for: jym-xensuspend
Diff to: previous 1.126: preferred, colored
Changes since revision 1.126: +4 -4 lines
Make sure all cached buffers with valid, not yet written data have been
run through copy-on-write.  Call fscow_run() with valid data where possible.

The LP_UFSCOW hack is no longer needed to protect ffs_copyonwrite() against
endless recursion.

- Add a flag B_MODIFY to bread(), breada() and breadn().  If set the caller
  intends to modify the buffer returned.

- Always run copy-on-write on buffers returned from ffs_balloc().

- Add new function ffs_getblk() that gets a buffer, assigns a new blkno,
  may clear the buffer and runs copy-on-write.  Process possible errors
  from getblk() or fscow_run().  Part of PR kern/38664.

Welcome to 4.99.63

Reviewed by: YAMAMOTO Takashi <yamt@netbsd.org>

Revision 1.125.10.1: download - view: text, markup, annotated - select for diffs
Fri May 16 02:26:00 2008 UTC (16 years, 9 months ago) by yamt
Branches: yamt-nfs-mp
Diff to: previous 1.125: preferred, colored
Changes since revision 1.125: +1 -8 lines
sync with head.

Revision 1.126: download - view: text, markup, annotated - select for diffs
Mon Apr 28 20:24:11 2008 UTC (16 years, 9 months ago) by martin
Branches: MAIN
CVS tags: yamt-nfs-mp-base2
Branch point for: wrstuden-revivesa
Diff to: previous 1.125: preferred, colored
Changes since revision 1.125: +1 -8 lines
Remove clause 3 and 4 from TNF licenses

Revision 1.120.8.3: download - view: text, markup, annotated - select for diffs
Sun Mar 23 02:05:12 2008 UTC (16 years, 10 months ago) by matt
Branches: matt-armv6
Diff to: previous 1.120.8.2: preferred, colored; branchpoint 1.120: preferred, colored; next MAIN 1.121: preferred, colored
Changes since revision 1.120.8.2: +5 -7 lines
sync with HEAD

Revision 1.88.2.6: download - view: text, markup, annotated - select for diffs
Wed Feb 27 08:37:06 2008 UTC (16 years, 11 months ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88.2.5: preferred, colored; next MAIN 1.89: preferred, colored
Changes since revision 1.88.2.5: +5 -7 lines
sync with head.

Revision 1.122.4.1: download - view: text, markup, annotated - select for diffs
Mon Feb 18 21:07:28 2008 UTC (16 years, 11 months ago) by mjf
Branches: mjf-devfs
Diff to: previous 1.122: preferred, colored; next MAIN 1.123: preferred, colored
Changes since revision 1.122: +26 -32 lines
Sync with HEAD.

Revision 1.125: download - view: text, markup, annotated - select for diffs
Fri Feb 15 13:30:56 2008 UTC (17 years ago) by ad
Branches: MAIN
CVS tags: yamt-pf42-baseX, yamt-pf42-base, yamt-nfs-mp-base, yamt-lazymbuf-base15, yamt-lazymbuf-base14, nick-net80211-sync-base, nick-net80211-sync, mjf-devfs-base, matt-armv6-nbase, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, hpcarm-cleanup-base, ad-socklock-base1
Branch point for: yamt-pf42, yamt-nfs-mp, mjf-devfs2
Diff to: previous 1.124: preferred, colored
Changes since revision 1.124: +5 -7 lines
The buffer LOCKED flag need not be under the protection of bufcache_lock,
BUSY is enough.

Revision 1.88.2.5: download - view: text, markup, annotated - select for diffs
Mon Jan 21 09:48:09 2008 UTC (17 years ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88.2.4: preferred, colored
Changes since revision 1.88.2.4: +30 -34 lines
sync with head

Revision 1.120.8.2: download - view: text, markup, annotated - select for diffs
Wed Jan 9 01:58:28 2008 UTC (17 years, 1 month ago) by matt
Branches: matt-armv6
Diff to: previous 1.120.8.1: preferred, colored; branchpoint 1.120: preferred, colored
Changes since revision 1.120.8.1: +30 -34 lines
sync with HEAD

Revision 1.122.10.2: download - view: text, markup, annotated - select for diffs
Tue Jan 8 22:12:03 2008 UTC (17 years, 1 month ago) by bouyer
Branches: bouyer-xeni386
CVS tags: bouyer-xeni386-merge1
Diff to: previous 1.122.10.1: preferred, colored; branchpoint 1.122: preferred, colored; next MAIN 1.123: preferred, colored
Changes since revision 1.122.10.1: +2 -0 lines
Sync with HEAD

Revision 1.124: download - view: text, markup, annotated - select for diffs
Thu Jan 3 19:28:50 2008 UTC (17 years, 1 month ago) by ad
Branches: MAIN
CVS tags: matt-armv6-base, bouyer-xeni386-nbase, bouyer-xeni386-base
Diff to: previous 1.123: preferred, colored
Changes since revision 1.123: +3 -1 lines
Use pool_cache.

Revision 1.122.10.1: download - view: text, markup, annotated - select for diffs
Wed Jan 2 21:58:21 2008 UTC (17 years, 1 month ago) by bouyer
Branches: bouyer-xeni386
Diff to: previous 1.122: preferred, colored
Changes since revision 1.122: +28 -34 lines
Sync with HEAD

Revision 1.123: download - view: text, markup, annotated - select for diffs
Wed Jan 2 11:49:10 2008 UTC (17 years, 1 month ago) by ad
Branches: MAIN
Diff to: previous 1.122: preferred, colored
Changes since revision 1.122: +28 -34 lines
Merge vmlocking2 to head.

Revision 1.122.6.2: download - view: text, markup, annotated - select for diffs
Wed Dec 19 21:27:11 2007 UTC (17 years, 1 month ago) by ad
Branches: vmlocking2
Diff to: previous 1.122.6.1: preferred, colored; branchpoint 1.122: preferred, colored; next MAIN 1.123: preferred, colored
Changes since revision 1.122.6.1: +14 -15 lines
Use a global lfs_lock.

Revision 1.122.6.1: download - view: text, markup, annotated - select for diffs
Tue Dec 4 13:03:47 2007 UTC (17 years, 2 months ago) by ad
Branches: vmlocking2
Diff to: previous 1.122: preferred, colored
Changes since revision 1.122: +29 -34 lines
Pull the vmlocking changes into a new branch.

Revision 1.120.8.1: download - view: text, markup, annotated - select for diffs
Tue Nov 6 23:35:15 2007 UTC (17 years, 3 months ago) by matt
Branches: matt-armv6
CVS tags: matt-armv6-prevmlocking
Diff to: previous 1.120: preferred, colored
Changes since revision 1.120: +5 -5 lines
sync with HEAD

Revision 1.88.2.4: download - view: text, markup, annotated - select for diffs
Sat Oct 27 11:36:44 2007 UTC (17 years, 3 months ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88.2.3: preferred, colored
Changes since revision 1.88.2.3: +5 -5 lines
sync with head.

Revision 1.120.6.1: download - view: text, markup, annotated - select for diffs
Fri Oct 26 15:49:32 2007 UTC (17 years, 3 months ago) by joerg
Branches: jmcneill-pm
Diff to: previous 1.120: preferred, colored; next MAIN 1.121: preferred, colored
Changes since revision 1.120: +5 -5 lines
Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Revision 1.120.10.1: download - view: text, markup, annotated - select for diffs
Sun Oct 14 11:49:17 2007 UTC (17 years, 4 months ago) by yamt
Branches: yamt-x86pmap
Diff to: previous 1.120: preferred, colored; next MAIN 1.121: preferred, colored
Changes since revision 1.120: +5 -5 lines
sync with head.

Revision 1.122: download - view: text, markup, annotated - select for diffs
Wed Oct 10 20:42:34 2007 UTC (17 years, 4 months ago) by ad
Branches: MAIN
CVS tags: yamt-x86pmap-base4, yamt-x86pmap-base3, yamt-kmem-base3, yamt-kmem-base2, yamt-kmem-base, yamt-kmem, vmlocking2-base3, vmlocking2-base2, vmlocking2-base1, vmlocking-nbase, vmlocking-base, reinoud-bufcleanup-nbase, reinoud-bufcleanup-base, jmcneill-pm-base, jmcneill-base, cube-autoconf-base, cube-autoconf, bouyer-xenamd64-base2, bouyer-xenamd64-base, bouyer-xenamd64
Branch point for: vmlocking2, mjf-devfs, bouyer-xeni386
Diff to: previous 1.121: preferred, colored
Changes since revision 1.121: +2 -2 lines
Merge from vmlocking:

- Split vnode::v_flag into three fields, depending on field locking.
- simple_lock -> kmutex in a few places.
- Fix some simple locking problems.

Revision 1.121: download - view: text, markup, annotated - select for diffs
Mon Oct 8 18:01:29 2007 UTC (17 years, 4 months ago) by ad
Branches: MAIN
Diff to: previous 1.120: preferred, colored
Changes since revision 1.120: +4 -4 lines
Merge ffs locking & brelse changes from the vmlocking branch.

Revision 1.118.6.4: download - view: text, markup, annotated - select for diffs
Fri Aug 24 23:28:46 2007 UTC (17 years, 5 months ago) by ad
Branches: vmlocking
Diff to: previous 1.118.6.3: preferred, colored; branchpoint 1.118: preferred, colored; next MAIN 1.119: preferred, colored
Changes since revision 1.118.6.3: +10 -9 lines
Sync with buffer cache locking changes. See buf.h/vfs_bio.c for details.
Some minor portions are incomplete and needs to be verified as a whole.

Revision 1.118.8.1: download - view: text, markup, annotated - select for diffs
Wed Jul 11 20:12:44 2007 UTC (17 years, 7 months ago) by mjf
Branches: mjf-ufs-trans
Diff to: previous 1.118: preferred, colored; next MAIN 1.119: preferred, colored
Changes since revision 1.118: +1 -1 lines
Sync with head.

Revision 1.118.6.3: download - view: text, markup, annotated - select for diffs
Sun Jun 17 21:32:10 2007 UTC (17 years, 7 months ago) by ad
Branches: vmlocking
Diff to: previous 1.118.6.2: preferred, colored; branchpoint 1.118: preferred, colored
Changes since revision 1.118.6.2: +2 -2 lines
- Increase the number of thread priorities from 128 to 256. How the space
  is set up is to be revisited.
- Implement soft interrupts as kernel threads. A generic implementation
  is provided, with hooks for fast-path MD code that can run the interrupt
  threads over the top of other threads executing in the kernel.
- Split vnode::v_flag into three fields, depending on how the flag is
  locked (by the interlock, by the vnode lock, by the file system).
- Miscellaneous locking fixes and improvements.

Revision 1.118.2.2: download - view: text, markup, annotated - select for diffs
Thu May 17 13:41:58 2007 UTC (17 years, 9 months ago) by yamt
Branches: yamt-idlelwp
Diff to: previous 1.118.2.1: preferred, colored; branchpoint 1.118: preferred, colored; next MAIN 1.119: preferred, colored
Changes since revision 1.118.2.1: +1 -2 lines
sync with head.

Revision 1.120: download - view: text, markup, annotated - select for diffs
Wed May 16 19:11:37 2007 UTC (17 years, 9 months ago) by perseant
Branches: MAIN
CVS tags: yamt-x86pmap-base2, yamt-x86pmap-base, yamt-idlelwp-base8, nick-csl-alignment-base5, nick-csl-alignment-base, nick-csl-alignment, mjf-ufs-trans-base, matt-mips64-base, matt-mips64, hpcarm-cleanup
Branch point for: yamt-x86pmap, matt-armv6, jmcneill-pm
Diff to: previous 1.119: preferred, colored
Changes since revision 1.119: +1 -2 lines
Change references to SEGM_W_DIROPS to SEGM_CKP, and replace the logic that
formerly used SEGM_W_DIROPS in lfs_segwrite() appropriately.  This prevents
a problem in which processes could get stuck in "buffers" sleep forever.

Revision 1.118.6.2: download - view: text, markup, annotated - select for diffs
Sun May 13 17:36:43 2007 UTC (17 years, 9 months ago) by ad
Branches: vmlocking
Diff to: previous 1.118.6.1: preferred, colored; branchpoint 1.118: preferred, colored
Changes since revision 1.118.6.1: +4 -4 lines
- Pass the error number and residual count to biodone(), and let it handle
  setting error indicators. Prepare to eliminate B_ERROR.
- Add a flag argument to brelse() to be set into the buf's flags, instead
  of doing it directly. Typically used to set B_INVAL.
- Add a "struct cpu_info *" argument to kthread_create(), to be used to
  create bound threads. Change "bool mpsafe" to "int flags".
- Allow exit of LWPs in the IDL state when (l != curlwp).
- More locking fixes & conversion to the new API.

Revision 1.118.2.1: download - view: text, markup, annotated - select for diffs
Mon May 7 10:56:15 2007 UTC (17 years, 9 months ago) by yamt
Branches: yamt-idlelwp
Diff to: previous 1.118: preferred, colored
Changes since revision 1.118: +2 -1 lines
sync with head.

Revision 1.119: download - view: text, markup, annotated - select for diffs
Tue Apr 17 01:16:46 2007 UTC (17 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.118: preferred, colored
Changes since revision 1.118: +2 -1 lines
Install a new sysctl, vfs.lfs.ignore_lazy_sync, which causes LFS to ignore
the "smooth" syncer, as if vfs.sync.*delay = 0, but only for LFS.  The
default is "on", i.e., ignore lazy sync.

Reduce the amount of polling/busy-waiting done by lfs_putpages().  To
accomplish this, copied genfs_putpages() and modified it to indicate which
page it was that caused it to return with EDEADLK.  fsync()/fdatasync()
should no longer ever fail with EAGAIN, and should not consume huge
quantities of cpu.

Also, try to make dirops less likely to be written as the result of a
VOP_PUTPAGES(), while ensuring that they are written regularly.

Revision 1.118.6.1: download - view: text, markup, annotated - select for diffs
Tue Mar 13 17:51:21 2007 UTC (17 years, 11 months ago) by ad
Branches: vmlocking
Diff to: previous 1.118: preferred, colored
Changes since revision 1.118: +22 -28 lines
Pull in the initial set of changes for the vmlocking branch.

Revision 1.88.2.3: download - view: text, markup, annotated - select for diffs
Mon Feb 26 09:12:20 2007 UTC (17 years, 11 months ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88.2.2: preferred, colored
Changes since revision 1.88.2.2: +4 -2 lines
sync with head.

Revision 1.118: download - view: text, markup, annotated - select for diffs
Thu Feb 15 15:40:54 2007 UTC (18 years ago) by ad
Branches: MAIN
CVS tags: thorpej-atomic-base, thorpej-atomic, reinoud-bufcleanup, ad-audiomp-base, ad-audiomp
Branch point for: yamt-idlelwp, vmlocking, mjf-ufs-trans
Diff to: previous 1.117: preferred, colored
Changes since revision 1.117: +4 -2 lines
Replace some uses of lockmgr() / simplelocks.

Revision 1.88.2.2: download - view: text, markup, annotated - select for diffs
Sat Dec 30 20:51:01 2006 UTC (18 years, 1 month ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88.2.1: preferred, colored
Changes since revision 1.88.2.1: +46 -16 lines
sync with head.

Revision 1.114.2.1: download - view: text, markup, annotated - select for diffs
Sat Nov 18 21:39:49 2006 UTC (18 years, 2 months ago) by ad
Branches: newlock2
Diff to: previous 1.114: preferred, colored; next MAIN 1.115: preferred, colored
Changes since revision 1.114: +19 -12 lines
Sync with head.

Revision 1.116.2.1: download - view: text, markup, annotated - select for diffs
Sun Oct 22 06:07:51 2006 UTC (18 years, 3 months ago) by yamt
Branches: yamt-splraiseipl
Diff to: previous 1.116: preferred, colored; next MAIN 1.117: preferred, colored
Changes since revision 1.116: +2 -1 lines
sync with head

Revision 1.117: download - view: text, markup, annotated - select for diffs
Thu Sep 28 23:08:23 2006 UTC (18 years, 4 months ago) by perseant
Branches: MAIN
CVS tags: yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, yamt-splraiseipl-base2, wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-base, wrstuden-fixsa, post-newlock2-merge, newlock2-nbase, newlock2-base, netbsd-4-base, netbsd-4-0-RELEASE, netbsd-4-0-RC5, netbsd-4-0-RC4, netbsd-4-0-RC3, netbsd-4-0-RC2, netbsd-4-0-RC1, netbsd-4-0-1-RELEASE, netbsd-4-0, netbsd-4, matt-nb4-arm-base, matt-nb4-arm
Diff to: previous 1.116: preferred, colored
Changes since revision 1.116: +2 -1 lines
Use lockstatus instead of a homebrewed locking system to control
LFCNWRAPSTOP and LFCNWRAPGO.

Be less verbose about the various looping checks: use log() rather than
printf(), and only log anything if we are really looping ("count = 2" is
not an error condition).

Allow dirops sleeping on available space to be interruptible.

Revision 1.116: download - view: text, markup, annotated - select for diffs
Fri Sep 15 18:50:49 2006 UTC (18 years, 5 months ago) by perseant
Branches: MAIN
CVS tags: yamt-splraiseipl-base
Branch point for: yamt-splraiseipl
Diff to: previous 1.115: preferred, colored
Changes since revision 1.115: +2 -2 lines
Don't remark a locked inode with IN_MODIFIED after writing it to disk,
if we ourselves hold the lock.  This prevents e.g. mknod from hanging
indefinitely.

Also, always use the return value from VOP_ISLOCKED to determine whether
we hold the lock or someone else does, rather than looking into the lock
structure ourselves.

Revision 1.115: download - view: text, markup, annotated - select for diffs
Fri Sep 15 15:51:12 2006 UTC (18 years, 5 months ago) by yamt
Branches: MAIN
Diff to: previous 1.114: preferred, colored
Changes since revision 1.114: +17 -11 lines
merge yamt-pdpolicy branch.
	- separate page replacement policy from the rest of kernel
	- implement an alternative replacement policy

Revision 1.95.4.1: download - view: text, markup, annotated - select for diffs
Sat Sep 9 03:00:00 2006 UTC (18 years, 5 months ago) by rpaulo
Branches: rpaulo-netinet-merge-pcb
Diff to: previous 1.95: preferred, colored; next MAIN 1.96: preferred, colored
Changes since revision 1.95: +76 -14 lines
sync with head

Revision 1.95.8.7: download - view: text, markup, annotated - select for diffs
Sun Sep 3 15:26:07 2006 UTC (18 years, 5 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.6: preferred, colored; branchpoint 1.95: preferred, colored; next MAIN 1.96: preferred, colored
Changes since revision 1.95.8.6: +14 -1 lines
sync with head.

Revision 1.114: download - view: text, markup, annotated - select for diffs
Fri Sep 1 19:41:28 2006 UTC (18 years, 5 months ago) by perseant
Branches: MAIN
CVS tags: yamt-pdpolicy-base9, yamt-pdpolicy-base8, rpaulo-netinet-merge-pcb-base
Branch point for: newlock2
Diff to: previous 1.113: preferred, colored
Changes since revision 1.113: +14 -1 lines
Changes to help the roll-forward agent, to wit:

* Mark being-deleted files in the Ifile so we can finish deleting them
  at fs mount time.
* Flag the Ifile with "cleaner must clean" when writers are waiting for
  the cleaner, rather than relying solely on the cleaner's estimation of
  whether it should clean or not.
* Note partial segments written by a user agent (in particular,
  fsck_lfs) so that repeated rolls forward don't interfere with one
  another.
* Add a new fcntl, LFCNPASS, that allows the log to wrap exactly once,
  for better testing of the validity of checkpoints.
* Keep track of the on-disk nlink count when cleaning, so that we don't
  partially complete directory operations while cleaning.
* Ensure that every single Ifile inode write represents a consistent
  view of the filesystem.  In particular, the accounting for the segment
  we are writing the inode into must be correct, and the accounting for
  the segment that inode used to reside in must be correct.  Rather than
  just rewriting the inode if we wrote it wrong, rewrite the necessary
  ifile blocks before writing the inode so we never write it wrong.
* Don't unmark any VDIROP vnodes if we haven't written them to disk,
  avoiding yet another problem with the "wait for the cleaner" error
  return from lfs_putpages().

Also, move the last callback to an aiodone call, so we no longer do any
memory management from interrupt context.

Revision 1.95.8.6: download - view: text, markup, annotated - select for diffs
Fri Aug 11 15:47:36 2006 UTC (18 years, 6 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.5: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.8.5: +9 -2 lines
sync with head

Revision 1.77.2.18: download - view: text, markup, annotated - select for diffs
Thu Aug 10 12:16:46 2006 UTC (18 years, 6 months ago) by tron
Branches: netbsd-3
CVS tags: netbsd-3-1-RELEASE, netbsd-3-1-RC4, netbsd-3-1-RC3, netbsd-3-1-RC2, netbsd-3-1-RC1, netbsd-3-1-1-RELEASE, netbsd-3-1
Diff to: previous 1.77.2.17: preferred, colored; branchpoint 1.77: preferred, colored; next MAIN 1.78: preferred, colored
Changes since revision 1.77.2.17: +8 -4 lines
Apply patch (requested by fair in perseant #1457):
Bring LFS up to current, including a patch (1.95 lfs_alloc.c) that
should prevent the inode free list errors seen on the STABLE branch
subsequent to pullup ticket #1327.

Revision 1.113: download - view: text, markup, annotated - select for diffs
Sun Aug 6 12:34:12 2006 UTC (18 years, 6 months ago) by martin
Branches: MAIN
CVS tags: yamt-pdpolicy-base7, abandoned-netbsd-4-base, abandoned-netbsd-4
Diff to: previous 1.112: preferred, colored
Changes since revision 1.112: +4 -6 lines
Fix size confusion with lfs_fhandle - and as it now turns out to be the same
as the lfs compat_30_fhandle, g/c the latter.
Add an alias for the LFCNIFILEFH fcntl, so that binaries compiled in the
meantime (with too large lfs_fhandle) continue to work.

This makes vfs_cleanerd work again after the kernel checks filehandle size
more strictly (problem reported by Kurt Schreiner on current-users).

Revision 1.112: download - view: text, markup, annotated - select for diffs
Mon Jul 31 16:34:44 2006 UTC (18 years, 6 months ago) by martin
Branches: MAIN
Diff to: previous 1.111: preferred, colored
Changes since revision 1.111: +4 -6 lines
Make filehandles opaque to userland

Revision 1.111: download - view: text, markup, annotated - select for diffs
Thu Jul 20 23:16:50 2006 UTC (18 years, 6 months ago) by perseant
Branches: MAIN
Diff to: previous 1.110: preferred, colored
Changes since revision 1.110: +2 -1 lines
Note partial segments that are written by the cleaner, to help out the
roll-forward agent.

Revision 1.110: download - view: text, markup, annotated - select for diffs
Thu Jul 13 22:05:52 2006 UTC (18 years, 7 months ago) by martin
Branches: MAIN
Diff to: previous 1.109: preferred, colored
Changes since revision 1.109: +7 -2 lines
Version the lfs_cleanerd internal fcntl() for filehandles too,
so old cleaners should work with newer kernels.

Revision 1.107.4.1: download - view: text, markup, annotated - select for diffs
Thu Jul 13 17:50:13 2006 UTC (18 years, 7 months ago) by gdamore
Branches: gdamore-uart
Diff to: previous 1.107: preferred, colored; next MAIN 1.108: preferred, colored
Changes since revision 1.107: +13 -5 lines
Merge from HEAD.

Revision 1.109: download - view: text, markup, annotated - select for diffs
Thu Jul 13 12:00:26 2006 UTC (18 years, 7 months ago) by martin
Branches: MAIN
Diff to: previous 1.108: preferred, colored
Changes since revision 1.108: +7 -2 lines
Fix alignement problems for fhandle_t, exposed by gcc4.1.

While touching all vptofh/fhtovp functions, get rid of VFS_MAXFIDSIZ,
version the getfh(2) syscall and explicitly pass the size available in
the filehandle from userland.

Discussed on tech-kern, with lots of help from yamt (thanks!).

Revision 1.95.8.5: download - view: text, markup, annotated - select for diffs
Mon Jun 26 12:54:49 2006 UTC (18 years, 7 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.4: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.8.4: +7 -4 lines
sync with head.

Revision 1.108: download - view: text, markup, annotated - select for diffs
Sat Jun 24 05:28:54 2006 UTC (18 years, 7 months ago) by perseant
Branches: MAIN
CVS tags: yamt-pdpolicy-base6
Diff to: previous 1.107: preferred, colored
Changes since revision 1.107: +7 -4 lines
Change LFCNWRAP{STOP,GO} to make them more suitable for snapshotting; in
particular, the caller can now choose whether to wait for the condition
to be met, and if the caller of LFCNWRAPSTOP dies or otherwise closes
the descriptor, the filesystem is started again.  Updated the ckckp
regression test to use the new semantics.

dump_lfs(8) now uses the fcntls to implement LFS-style snapshotting through
the -X flag, addressing PR#33457 albeit not using fss(4).  Fixed a couple
other problems with dump_lfs that manifested themselves during testing.

Revision 1.88.2.1: download - view: text, markup, annotated - select for diffs
Wed Jun 21 15:12:38 2006 UTC (18 years, 7 months ago) by yamt
Branches: yamt-lazymbuf
Diff to: previous 1.88: preferred, colored
Changes since revision 1.88: +74 -61 lines
sync with head.

Revision 1.95.6.2: download - view: text, markup, annotated - select for diffs
Thu Jun 1 22:39:43 2006 UTC (18 years, 8 months ago) by kardel
Branches: simonb-timecounters
CVS tags: simonb-timcounters-final
Diff to: previous 1.95.6.1: preferred, colored; branchpoint 1.95: preferred, colored; next MAIN 1.96: preferred, colored
Changes since revision 1.95.6.1: +33 -10 lines
Sync with head.

Revision 1.95.12.2: download - view: text, markup, annotated - select for diffs
Wed May 24 15:50:48 2006 UTC (18 years, 8 months ago) by tron
Branches: peter-altq
Diff to: previous 1.95.12.1: preferred, colored; branchpoint 1.95: preferred, colored; next MAIN 1.96: preferred, colored
Changes since revision 1.95.12.1: +47 -12 lines
Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.

Revision 1.95.8.4: download - view: text, markup, annotated - select for diffs
Wed May 24 10:59:25 2006 UTC (18 years, 8 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.3: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.8.3: +37 -10 lines
sync with head.

Revision 1.77.2.17: download - view: text, markup, annotated - select for diffs
Sat May 20 22:43:42 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.16: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.16: +6 -5 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_alloc.c: revision 1.93
	sys/ufs/lfs/lfs.h: revision 1.106
	sys/ufs/lfs/lfs_vfsops.c: revision 1.209
	sys/ufs/lfs/lfs_vnops.c: revision 1.175
	sys/ufs/lfs/lfs_segment.c: revision 1.178
Fixes to address the "vinvalbuf: dirty blocks" panic that can occur when
many inodes are cleaned at once.  Make sure that we write all the pages
on vnodes that are being flushed, even if we don't think there's room;
drain v_numoutput before lfs_vflush() completes.
Also, don't allow a vnode that is in the process of being cleaned to be
chosen by getnewvnode(); this avoids a segment accounting panic in the case
that a large number of inodes are fed to lfs_markv() all at once.

Revision 1.77.2.16: download - view: text, markup, annotated - select for diffs
Sat May 20 22:42:50 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.15: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.15: +14 -5 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_alloc.c: revision 1.92
	sys/ufs/lfs/lfs.h: revision 1.105
	sys/ufs/lfs/lfs_vfsops.c: revision 1.207
	sys/ufs/lfs/lfs_subr.c: revision 1.59
	sys/ufs/lfs/lfs_vnops.c: revision 1.173
	sys/ufs/lfs/lfs_bio.c: revision 1.92
Introduce another per-filesystem parameter, lfs_resvseg, to separate the
notion of "how many segments are reserved for the cleaner" from that of
"how many segments are not counted in lfs_bfree".  The default value
used for existing filesystems is the same as the previous implicit value
of (lfs_minfreeseg / 2 + 1), modulo some sanity checking.
Count pending dirops on a per-filesystem basis, since once we start
writing them we can't stop until we're done.  This seems to help stave off
the "no clean segments" panic in the case of filling the filesystem with
directories and small files (e.g. simultaneously unpacking more copies of
pkgsrc than will fit).

Revision 1.77.2.15: download - view: text, markup, annotated - select for diffs
Sat May 20 22:38:57 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.14: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.14: +14 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.104
	sys/ufs/lfs/lfs_vfsops.c: revision 1.206
	sys/ufs/lfs/lfs_vnops.c: revision 1.170
	sys/ufs/lfs/lfs_extern.h: revision 1.80
	sys/ufs/lfs/lfs_segment.c: revision 1.176
	sys/ufs/lfs/lfs_inode.c: revision 1.103 via patch
	sys/ufs/lfs/lfs_alloc.c: revision 1.90
Postpone the segment accounting changes coming from truncation until the
inode that makes those changes valid is either written to disk by
lfs_writeinode() or discarded by lfs_vfree().
A couple of locking fixes are also included as well.

Revision 1.77.2.14: download - view: text, markup, annotated - select for diffs
Sat May 20 22:24:27 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.13: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.13: +4 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.103
	sys/ufs/lfs/lfs_segment.c: revision 1.174
	sys/ufs/lfs/lfs_vnops.c: revision 1.168
Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing.  This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.
Include a regression test that does such scanning.
When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small).  Discovered by using the aforementioned
regression test.

Revision 1.77.2.13: download - view: text, markup, annotated - select for diffs
Sat May 20 22:19:33 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.12: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.12: +2 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.102
	sys/ufs/lfs/lfs_segment.c: revision 1.173
	sys/ufs/lfs/lfs_vnops.c: revision 1.167 via patch
	sys/ufs/lfs/lfs_bio.c: revision 1.91
Make lfs_vref/lfs_vunref not need to know about VXLOCK and VFREEING
explicitly (especially since we didn't know about VFREEING at all before),
but notice the EBUSY return from vget() instead.
Fix some more MP locking protocol issues, most of which were pointed out by
Christian Ehrhardt this morning on tech-kern.

Revision 1.77.2.12: download - view: text, markup, annotated - select for diffs
Sat May 20 22:11:58 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.11: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.11: +6 -3 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.101
	sys/ufs/lfs/lfs_vfsops.c: revision 1.202
	sys/ufs/lfs/lfs_alloc.c: revision 1.88
Optimize the free list search a little more; in particular use words
instead of bytes for the index, and never search below fs->lfs_freehd.
Fix a bug in the previous version of the search (an erroneous assumption
that ino_t was signed).
Free the bitmap when we unmount the filesystem.

Revision 1.77.2.11: download - view: text, markup, annotated - select for diffs
Sat May 20 22:10:29 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.10: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.10: +2 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_vfsops.c: revision 1.200
	sys/ufs/lfs/lfs_vnops.c: revision 1.164
	sys/ufs/lfs/lfs_inode.c: revision 1.101
	sys/ufs/lfs/lfs_extern.h: revision 1.78
	sys/ufs/lfs/lfs.h: revision 1.100
Implement a somewhat finer-grained mechanism for paging LFS-backed pages.
The writer daemon, if it does not need to flush the whole filesystem,
now only writes the vnodes for which the pagedaemon has requested pageouts
(although it does not pay attention to the page ranges the pagedaemon
supplies).

Revision 1.77.2.10: download - view: text, markup, annotated - select for diffs
Sat May 20 22:09:28 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.9: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.9: +2 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_alloc.c: revision 1.87
	sys/ufs/lfs/lfs.h: revision 1.99
	sys/ufs/lfs/lfs_vfsops.c: revision 1.199
	sys/ufs/lfs/lfs_extern.h: revision 1.77 via patch
Keep the free list ordered.  This solves a problem first pointed out to me
by Michel Oey, in which an aged LFS writes up to an extra Ifile block for
every file created; and paves the way for the truncation of the Ifile when
many files are deleted.

Revision 1.77.2.9: download - view: text, markup, annotated - select for diffs
Sat May 20 22:04:21 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.8: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.8: +5 -2 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_subr.c: revision 1.58
	sys/ufs/lfs/lfs.h: revision 1.98
Make the segment lock aware of LWPs.  Fixes a (somewhat confusing)
"lockmgr: pid 3997, not exclusive lockholder 3997, unlocking" panic I
encountered while running blogbench on an LFS.

Revision 1.77.2.8: download - view: text, markup, annotated - select for diffs
Sat May 20 21:59:47 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.7: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.7: +4 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_vnops.c: revision 1.158
	sys/ufs/lfs/lfs_subr.c: revision 1.57
	sys/ufs/lfs/lfs_segment.c: revision 1.171
	sys/ufs/lfs/lfs.h: revision 1.97
	sys/ufs/lfs/lfs_vfsops.c: revision 1.195
	sys/ufs/lfs/lfs_extern.h: revision 1.76
Improvements to LFS's paging mechanism, to wit:
* Acknowledge that sometimes there are more dirty pages to be written to
   disk than clean segments.  When we reach the danger line,
   lfs_gop_write() now returns EAGAIN.  The caller of VOP_PUTPAGES(), if
   it holds the segment lock, drops it and waits for the cleaner to make
   room before continuing.
* Note and avoid a three-way deadlock in lfs_putpages (a writer holding
   a page busy blocks on the cleaner while the cleaner blocks on the
   segment lock while lfs_putpages blocks on the page).

Revision 1.77.2.7: download - view: text, markup, annotated - select for diffs
Sat May 20 21:58:21 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.6: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.6: +3 -2 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_segment.c: revision 1.170
	sys/ufs/lfs/lfs.h: revision 1.96
	sys/ufs/lfs/lfs_vfsops.c: revision 1.194
	sys/ufs/lfs/lfs_syscalls.c: revision 1.109
From Konrad Schroeder, in response to strange df output on anoncvs.netbsd.org:
We were returning the wrong value for free space.  Now we're not.

Revision 1.77.2.6: download - view: text, markup, annotated - select for diffs
Sat May 20 21:57:12 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.5: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.5: +11 -11 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.91
whitespace.

Revision 1.77.2.5: download - view: text, markup, annotated - select for diffs
Sat May 20 21:56:50 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.4: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.4: +5 -5 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.90
change ino_t to u_int32_t for syscall compatibility.

Revision 1.77.2.4: download - view: text, markup, annotated - select for diffs
Sat May 20 21:51:54 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.3: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.3: +4 -2 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs.h: revision 1.89
Move extern kernel variable declarations, into a _KERNEL protected session
so that the don't pollute userland's namespace.

Revision 1.77.2.3: download - view: text, markup, annotated - select for diffs
Sat May 20 21:50:26 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.2: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.2: +3 -3 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_vnops.c: revision 1.152
	sys/ufs/lfs/lfs_debug.c: revision 1.31
	sys/ufs/lfs/lfs_subr.c: revision 1.53
	sys/ufs/lfs/lfs_extern.h: revision 1.68
	sys/ufs/lfs/lfs_inode.c: revision 1.96
	sys/ufs/lfs/lfs_bio.c: revision 1.86
	sys/ufs/lfs/lfs_alloc.c: revision 1.83
	sys/ufs/lfs/lfs_vfsops.c: revision 1.181
	sys/ufs/lfs/lfs.h: revision 1.88
	sys/ufs/lfs/lfs_segment.c: revision 1.164
- sprinkle const
- avoid shadow variables.

Revision 1.77.2.2: download - view: text, markup, annotated - select for diffs
Sat May 20 21:18:49 2006 UTC (18 years, 8 months ago) by riz
Branches: netbsd-3
Diff to: previous 1.77.2.1: preferred, colored; branchpoint 1.77: preferred, colored
Changes since revision 1.77.2.1: +2 -1 lines
Pull up following revision(s) (requested by perseant in ticket #1327):
	sys/ufs/lfs/lfs_vfsops.c: revision 1.180
	sys/ufs/lfs/lfs_syscalls.c: revision 1.106
	sys/ufs/lfs/lfs.h: revision 1.87
Keep track of the number of segments reclaimed, since the cleaner doesn't
do this anymore (it hasn't for quite some time).  Add a couple of conditional
debugging messages to indicate why segments are not cleaned, in the event
that lfs_segclean is used.
Make the LFCNSEGWAITALL fcntl work again.

Revision 1.107: download - view: text, markup, annotated - select for diffs
Sun May 14 21:32:45 2006 UTC (18 years, 9 months ago) by elad
Branches: MAIN
CVS tags: yamt-pdpolicy-base5, simonb-timecounters-base, gdamore-uart-base, chap-midi-nbase, chap-midi-base, chap-midi
Branch point for: gdamore-uart
Diff to: previous 1.106: preferred, colored
Changes since revision 1.106: +3 -3 lines
integrate kauth.

Revision 1.106: download - view: text, markup, annotated - select for diffs
Fri May 12 23:36:11 2006 UTC (18 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.105: preferred, colored
Changes since revision 1.105: +6 -5 lines
Fixes to address the "vinvalbuf: dirty blocks" panic that can occur when
many inodes are cleaned at once.  Make sure that we write all the pages
on vnodes that are being flushed, even if we don't think there's room;
drain v_numoutput before lfs_vflush() completes.

Also, don't allow a vnode that is in the process of being cleaned to be
chosen by getnewvnode(); this avoids a segment accounting panic in the case
that a large number of inodes are fed to lfs_markv() all at once.

Revision 1.95.10.3: download - view: text, markup, annotated - select for diffs
Thu May 11 23:32:03 2006 UTC (18 years, 9 months ago) by elad
Branches: elad-kernelauth
Diff to: previous 1.95.10.2: preferred, colored; branchpoint 1.95: preferred, colored; next MAIN 1.96: preferred, colored
Changes since revision 1.95.10.2: +27 -5 lines
sync with head

Revision 1.105: download - view: text, markup, annotated - select for diffs
Thu May 4 04:22:55 2006 UTC (18 years, 9 months ago) by perseant
Branches: MAIN
CVS tags: elad-kernelauth-base
Diff to: previous 1.104: preferred, colored
Changes since revision 1.104: +14 -5 lines
Introduce another per-filesystem parameter, lfs_resvseg, to separate the
notion of "how many segments are reserved for the cleaner" from that of
"how many segments are not counted in lfs_bfree".  The default value
used for existing filesystems is the same as the previous implicit value
of (lfs_minfreeseg / 2 + 1), modulo some sanity checking.

Count pending dirops on a per-filesystem basis, since once we start
writing them we can't stop until we're done.  This seems to help stave off
the "no clean segments" panic in the case of filling the filesystem with
directories and small files (e.g. simultaneously unpacking more copies of
pkgsrc than will fit).

Revision 1.104: download - view: text, markup, annotated - select for diffs
Sun Apr 30 21:19:42 2006 UTC (18 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.103: preferred, colored
Changes since revision 1.103: +14 -1 lines
Postpone the segment accounting changes coming from truncation until the
inode that makes those changes valid is either written to disk by
lfs_writeinode() or discarded by lfs_vfree().

A couple of locking fixes are also included as well.

Revision 1.95.6.1: download - view: text, markup, annotated - select for diffs
Sat Apr 22 11:40:25 2006 UTC (18 years, 9 months ago) by simonb
Branches: simonb-timecounters
Diff to: previous 1.95: preferred, colored
Changes since revision 1.95: +20 -4 lines
Sync with head.

Revision 1.95.10.2: download - view: text, markup, annotated - select for diffs
Wed Apr 19 03:54:09 2006 UTC (18 years, 9 months ago) by elad
Branches: elad-kernelauth
Diff to: previous 1.95.10.1: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.10.1: +20 -4 lines
sync with head.

Revision 1.103: download - view: text, markup, annotated - select for diffs
Mon Apr 17 20:02:34 2006 UTC (18 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.102: preferred, colored
Changes since revision 1.102: +4 -1 lines
Introduce two fcntl calls that freeze the filesystem right at the point
where segment 0 is being considered for writing.  This allows for automated
checkpoint vailidity scanning, and could be used (in conjunction with the
existing LFCNREWIND) for e.g. snapshot dumps as well.

Include a regression test that does such scanning.

When writing the Ifile, loop through the dirty block list three times to
make sure that the checkpoint is always consistent (the first and second
times the Ifile blocks can cross a segment boundary; not so the third time
unless the segments are very small).  Discovered by using the aforementioned
regression test.

Revision 1.102: download - view: text, markup, annotated - select for diffs
Thu Apr 13 23:46:28 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.101: preferred, colored
Changes since revision 1.101: +2 -1 lines
Make lfs_vref/lfs_vunref not need to know about VXLOCK and VFREEING
explicitly (especially since we didn't know about VFREEING at all before),
but notice the EBUSY return from vget() instead.

Fix some more MP locking protocol issues, most of which were pointed out by
Christian Ehrhardt this morning on tech-kern.

Revision 1.95.8.3: download - view: text, markup, annotated - select for diffs
Tue Apr 11 11:55:58 2006 UTC (18 years, 10 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.2: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.8.2: +11 -3 lines
sync with head

Revision 1.101: download - view: text, markup, annotated - select for diffs
Mon Apr 10 21:20:19 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
CVS tags: yamt-pdpolicy-base4
Diff to: previous 1.100: preferred, colored
Changes since revision 1.100: +6 -3 lines
Optimize the free list search a little more; in particular use words
instead of bytes for the index, and never search below fs->lfs_freehd.

Fix a bug in the previous version of the search (an erroneous assumption
that ino_t was signed).

Free the bitmap when we unmount the filesystem.

Revision 1.100: download - view: text, markup, annotated - select for diffs
Sat Apr 8 00:26:34 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.99: preferred, colored
Changes since revision 1.99: +2 -1 lines
Implement a somewhat finer-grained mechanism for paging LFS-backed pages.
The writer daemon, if it does not need to flush the whole filesystem,
now only writes the vnodes for which the pagedaemon has requested pageouts
(although it does not pay attention to the page ranges the pagedaemon
supplies).

Revision 1.99: download - view: text, markup, annotated - select for diffs
Sat Apr 8 00:16:56 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.98: preferred, colored
Changes since revision 1.98: +2 -1 lines
Keep the free list ordered.  This solves a problem first pointed out to me
by Michel Oey, in which an aged LFS writes up to an extra Ifile block for
every file created; and paves the way for the truncation of the Ifile when
many files are deleted.

Revision 1.98: download - view: text, markup, annotated - select for diffs
Fri Apr 7 23:44:14 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.97: preferred, colored
Changes since revision 1.97: +5 -2 lines
Make the segment lock aware of LWPs.  Fixes a (somewhat confusing)
"lockmgr: pid 3997, not exclusive lockholder 3997, unlocking" panic I
encountered while running blogbench on an LFS.

Revision 1.95.8.2: download - view: text, markup, annotated - select for diffs
Sat Apr 1 12:07:56 2006 UTC (18 years, 10 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95.8.1: preferred, colored; branchpoint 1.95: preferred, colored
Changes since revision 1.95.8.1: +6 -2 lines
sync with head.

Revision 1.95.12.1: download - view: text, markup, annotated - select for diffs
Tue Mar 28 09:42:30 2006 UTC (18 years, 10 months ago) by tron
Branches: peter-altq
Diff to: previous 1.95: preferred, colored
Changes since revision 1.95: +6 -2 lines
Merge 2006-03-28 NetBSD-current into the "peter-altq" branch.

Revision 1.97: download - view: text, markup, annotated - select for diffs
Fri Mar 24 20:05:32 2006 UTC (18 years, 10 months ago) by perseant
Branches: MAIN
CVS tags: yamt-pdpolicy-base3
Diff to: previous 1.96: preferred, colored
Changes since revision 1.96: +4 -1 lines
Improvements to LFS's paging mechanism, to wit:

* Acknowledge that sometimes there are more dirty pages to be written to
  disk than clean segments.  When we reach the danger line,
  lfs_gop_write() now returns EAGAIN.  The caller of VOP_PUTPAGES(), if
  it holds the segment lock, drops it and waits for the cleaner to make
  room before continuing.

* Note and avoid a three-way deadlock in lfs_putpages (a writer holding
  a page busy blocks on the cleaner while the cleaner blocks on the
  segment lock while lfs_putpages blocks on the page).

Revision 1.96: download - view: text, markup, annotated - select for diffs
Fri Mar 17 23:21:01 2006 UTC (18 years, 11 months ago) by tls
Branches: MAIN
Diff to: previous 1.95: preferred, colored
Changes since revision 1.95: +3 -2 lines
From Konrad Schroeder, in response to strange df output on anoncvs.netbsd.org:
We were returning the wrong value for free space.  Now we're not.

Revision 1.95.10.1: download - view: text, markup, annotated - select for diffs
Wed Mar 8 01:39:12 2006 UTC (18 years, 11 months ago) by elad
Branches: elad-kernelauth
Diff to: previous 1.95: preferred, colored
Changes since revision 1.95: +3 -3 lines
Adapt to kernel authorization KPI.

Revision 1.95.8.1: download - view: text, markup, annotated - select for diffs
Sun Mar 5 12:51:09 2006 UTC (18 years, 11 months ago) by yamt
Branches: yamt-pdpolicy
Diff to: previous 1.95: preferred, colored
Changes since revision 1.95: +17 -11 lines
separate page replacement policy from the rest of kernel.

Revision 1.95: download - view: text, markup, annotated - select for diffs
Sun Dec 11 12:25:26 2005 UTC (19 years, 2 months ago) by christos
Branches: MAIN
CVS tags: yamt-uio_vmspace-base5, yamt-uio_vmspace, yamt-pdpolicy-base2, yamt-pdpolicy-base, peter-altq-base
Branch point for: yamt-pdpolicy, simonb-timecounters, rpaulo-netinet-merge-pcb, peter-altq, elad-kernelauth
Diff to: previous 1.94: preferred, colored
Changes since revision 1.94: +1 -1 lines
merge ktrace-lwp.

Revision 1.64.2.7: download - view: text, markup, annotated - select for diffs
Thu Nov 10 14:12:32 2005 UTC (19 years, 3 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.6: preferred, colored; next MAIN 1.65: preferred, colored
Changes since revision 1.64.2.6: +121 -66 lines
Sync with HEAD. Here we go again...

Revision 1.94: download - view: text, markup, annotated - select for diffs
Tue Sep 13 04:13:25 2005 UTC (19 years, 5 months ago) by christos
Branches: MAIN
CVS tags: yamt-vop-base3, yamt-vop-base2, yamt-vop-base, yamt-vop, yamt-readahead-pervnode, yamt-readahead-perfile, yamt-readahead-base3, yamt-readahead-base2, yamt-readahead-base, yamt-readahead, thorpej-vnode-attr-base, thorpej-vnode-attr, ktrace-lwp-base
Diff to: previous 1.93: preferred, colored
Changes since revision 1.93: +6 -1 lines
split out lfs_itimes(). It is used in fsck_lfs.

Revision 1.93: download - view: text, markup, annotated - select for diffs
Mon Sep 12 16:24:41 2005 UTC (19 years, 5 months ago) by christos
Branches: MAIN
Diff to: previous 1.92: preferred, colored
Changes since revision 1.92: +4 -39 lines
Use nanotime() to update the time fields in filesystems. Convert the code
from macros to real functions. Original patch and review from chuq.
Note: ext2fs only keeps seconds in the on-disk inode, and msdosfs does not
have enough precision for all fields, so this is not very useful for those
two.

Revision 1.92: download - view: text, markup, annotated - select for diffs
Tue Aug 23 08:05:13 2005 UTC (19 years, 5 months ago) by christos
Branches: MAIN
Diff to: previous 1.91: preferred, colored
Changes since revision 1.91: +3 -1 lines
Don't overload MAXNAMLEN, use a separate constant for each filesystem type.

Revision 1.91: download - view: text, markup, annotated - select for diffs
Mon Aug 22 09:08:17 2005 UTC (19 years, 5 months ago) by yamt
Branches: MAIN
Diff to: previous 1.90: preferred, colored
Changes since revision 1.90: +11 -11 lines
whitespace.

Revision 1.90: download - view: text, markup, annotated - select for diffs
Mon Aug 22 08:53:03 2005 UTC (19 years, 5 months ago) by christos
Branches: MAIN
Diff to: previous 1.89: preferred, colored
Changes since revision 1.89: +5 -5 lines
change ino_t to u_int32_t for syscall compatibility.

Revision 1.89: download - view: text, markup, annotated - select for diffs
Sun Jul 31 20:18:32 2005 UTC (19 years, 6 months ago) by christos
Branches: MAIN
Diff to: previous 1.88: preferred, colored
Changes since revision 1.88: +4 -2 lines
Move extern kernel variable declarations, into a _KERNEL protected session
so that the don't pollute userland's namespace.

Revision 1.88: download - view: text, markup, annotated - select for diffs
Sun May 29 21:25:24 2005 UTC (19 years, 8 months ago) by christos
Branches: MAIN
Branch point for: yamt-lazymbuf
Diff to: previous 1.87: preferred, colored
Changes since revision 1.87: +3 -3 lines
- sprinkle const
- avoid shadow variables.

Revision 1.87: download - view: text, markup, annotated - select for diffs
Fri May 20 19:48:25 2005 UTC (19 years, 8 months ago) by perseant
Branches: MAIN
Diff to: previous 1.86: preferred, colored
Changes since revision 1.86: +2 -1 lines
Keep track of the number of segments reclaimed, since the cleaner doesn't
do this anymore (it hasn't for quite some time).  Add a couple of conditional
debugging messages to indicate why segments are not cleaned, in the event
that lfs_segclean is used.

Make the LFCNSEGWAITALL fcntl work again.

Revision 1.72.4.1: download - view: text, markup, annotated - select for diffs
Tue May 10 05:08:57 2005 UTC (19 years, 9 months ago) by riz
Branches: netbsd-2
CVS tags: netbsd-2-1-RELEASE, netbsd-2-1-RC6, netbsd-2-1-RC5, netbsd-2-1-RC4, netbsd-2-1-RC3, netbsd-2-1-RC2, netbsd-2-1-RC1, netbsd-2-1
Diff to: previous 1.72: preferred, colored; next MAIN 1.73: preferred, colored
Changes since revision 1.72: +47 -16 lines
Pull up the following revisions (requested by perseant in ticket #1281):

        1.8 sys/ufs/lfs/TODO
        1.75 sys/ufs/lfs/lfs.h                  (via patch)
        1.74 sys/ufs/lfs/lfs_alloc.c            (via patch)
        1.49, 1.51 sys/ufs/lfs/lfs_balloc.c     (1.51 via patch)
        1.78 sys/ufs/lfs/lfs_bio.c
        1.62 sys/ufs/lfs/lfs_extern.h           (via patch)
        1.156 sys/ufs/lfs/lfs_segment.c         (via patch)
        1.48 sys/ufs/lfs/lfs_subr.c
        1.101 sys/ufs/lfs/lfs_syscalls.c
        1.163 sys/ufs/lfs/lfs_vfsops.c          (via patch)
        1.134 sys/ufs/lfs/lfs_vnops.c           (via patch)
        1.61 sys/ufs/ufs/ufs_readwrite.c        (via patch)

        1.20 libexec/lfs_cleanerd/clean.h       (via patch)
        1.52 libexec/lfs_cleanerd/cleanerd.c    (via patch)
        1.41 libexec/lfs_cleanerd/library.c     (via patch)

        1.4 regress/sys/fs/lfs/newfs_fsck/Makefile
        1.2 regress/sys/fs/lfs/newfs_fsck/mkfs_mount
        1.2 regress/sys/fs/lfs/newfs_fsck/smallfiles
        1.3 sbin/fsck_lfs/bufcache.c
        1.3 sbin/fsck_lfs/bufcache.h
        1.3 sbin/fsck_lfs/lfs.h
        1.8 sbin/fsck_lfs/lfs.c                 (via patch)
        1.8 sbin/fsck_lfs/pass3.c               (via patch)
        1.18 sbin/fsck_lfs/pass0.c              (via patch)
        1.18 sbin/fsck_lfs/utilities.c          (via patch)
        1.7 sbin/fsck_lfs/segwrite.c
        1.19 sbin/fsck_lfs/setup.c              (via patch)
        1.3 sbin/newfs_lfs/Makefile
        0 sbin/newfs_lfs/lfs.c                  (yes, remove it)
        1.1 sbin/newfs_lfs/make_lfs.c
        1.15 sbin/newfs_lfs/newfs.c             (via patch)

Various minor LFS improvements.

Kernel:

* Note when lfs_putpages(9) thinks it is not going to be writing any
   pages before calling genfs_putpages(9).  This prevents a situation in
   which blocks can be queued for writing without a segment header.
* Correct computation of NRESERVE(), though it is still a gross
   overestimate in most cases.  Note that if NRESERVE() is too high, it
   may be impossible to create files on the filesystem.  We catch this
   case on filesystem mount and refuse to mount r/w.
* Allow filesystems to be mounted whose block size is == MAXBSIZE.
* Somewhere along the line, ufs_bmaparray(9) started mangling UNWRITTEN
   entries in indirect blocks again, triggering a failed assertion "daddr
   <= LFS_MAX_DADDR".  Explicitly convert to and from int32_t to correct
   this.  Should fix PR #29045.
* Add a high-water mark for the number of dirty pages any given LFS can
   hold before triggering a flush.  This is settable by sysctl, but off
   (zero) by default.
* Be more careful about the MAX_BYTES and MAX_BUFS computations so we
   shouldn't see "please increase to at least zero" messages.
* Note that VBLK and VCHR vnodes can have nonzero values in di_db[0]
   even though their v_size == 0.  Don't panic when we see this.
   Fixes PR #26680.
* Change lfs_bfree to a signed quantity.  The manner in which it is
   processed before being passed to the cleaner means that sometimes it
   may drop below zero, and the cleaner must be aware of this.
* Never report bfree < 0 (or higher than lfs_dsize) through
   lfs_statfs(9).  This prevents df(1) from ever telling us that our full
   filesystems have 16TB free.
* Account space allocated through lfs_balloc(9) that does not have
   associated buffer headers, so that the pagedaemon doesn't run us out
   of segments.
* Return ENOSPC from lfs_balloc(9) when bfree drops to zero.
* Address a deadlock in lfs_bmapv/lfs_markv when the filesystem is being
   unmounted.  Because vfs_busy() is a shared lock, and
   lfs_bmapv/lfs_markv mark the filesystem vfs_busy(), the cleaner can be
   holding the lock that umount() is blocking on, then try to vfs_busy()
   again in getnewvnode().

cleaner:

* Adapt lfs_cleanerd to use the fcntl call to get the Ifile filehandle,
   so it need not be in the namespace.
* Make lfs_cleanerd be more careful when there are very few available
   segments.
* Make lfs_cleanerd less verbose when the filesystem is unmounted.

newfs_lfs, fsck_lfs, and regression:

* Extend the lfs library from fsck_lfs(8) so that it can be used with a
   not-yet-existent LFS.  Make newfs_lfs(8) use this library, so it can
   create LFSs whose Ifile is larger than one segment.  Addresses PR #11110.
* Make newfs_lfs(8) use strsuftoi64() for its arguments, a la newfs(8).
* Make fsck_lfs(8) respect the "file system is clean" flag.
* Don't let fsck_lfs(8) think it has dirty blocks when invoked with the
   -n flag.
* Remove the Ifile from the filesystem namespace.  The cleaner now uses
   a fcntl call on the root inode to find the Ifile filehandle.  (As a
   side-effect, addresses PR #29144.)

Revision 1.77.2.1: download - view: text, markup, annotated - select for diffs
Sat May 7 11:21:29 2005 UTC (19 years, 9 months ago) by tron
Branches: netbsd-3
CVS tags: netbsd-3-0-RELEASE, netbsd-3-0-RC6, netbsd-3-0-RC5, netbsd-3-0-RC4, netbsd-3-0-RC3, netbsd-3-0-RC2, netbsd-3-0-RC1, netbsd-3-0-3-RELEASE, netbsd-3-0-2-RELEASE, netbsd-3-0-1-RELEASE, netbsd-3-0
Diff to: previous 1.77: preferred, colored
Changes since revision 1.77: +97 -17 lines
Apply patch (requested by perseant in ticket #242):
* fsck_lfs buffer cache fixes, including PR #29151
* Change fsck_lfs phase 0 message to reflect reality
* fsck_lfs: check phase 5 (cleanerinfo accounting) even on
  roll-forward
* Keep better track of the free list during roll-forward, avoiding
  a core dump
* Improve hash table use for fsck_lfs buffer and vnode cache
* Document fsck_lfs flag -f, and implement -q
* Add resize_lfs, including kernel support
* Add LFS to mountd's list of exportable filesystem types
* Make the LFS lkm work again [christos@]
* Add MP locking to the LFS kernel subsystem
* Fix pager_map deadlock in lfs_putpages()
* Avoid incomplete file extension that looks like "partial
  truncation" to fsck
* Use lfs_malloc for cleaner malloc, since the cleaner often runs
  in low-memory conditions.
* Use splay trees, not hash table, to track page allocation for
  write.
* Fix mkdir panic on full fs
* Fix page accounting leak by counting differently.
* Use rightly named structure for lfs_getattr [skrll@]
* Cosmetic changes for readability.

Revision 1.74.4.1: download - view: text, markup, annotated - select for diffs
Fri Apr 29 11:29:39 2005 UTC (19 years, 9 months ago) by kent
Branches: kent-audio2
Diff to: previous 1.74: preferred, colored; next MAIN 1.75: preferred, colored
Changes since revision 1.74: +163 -34 lines
sync with -current

Revision 1.86: download - view: text, markup, annotated - select for diffs
Sat Apr 23 19:47:51 2005 UTC (19 years, 9 months ago) by perseant
Branches: MAIN
CVS tags: kent-audio2-base
Diff to: previous 1.85: preferred, colored
Changes since revision 1.85: +31 -2 lines
Provide a resize_lfs(8), including kernel and cleaner support.  The current
implementation requires the fs to be mounted while resizing.  Tested in both
directions, and everything appears to work happily, but ymmv.

Revision 1.85: download - view: text, markup, annotated - select for diffs
Tue Apr 19 20:59:05 2005 UTC (19 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.84: preferred, colored
Changes since revision 1.84: +6 -3 lines
Keep per-inode, per-fs, and subsystem-wide counts of blocks allocated through
lfs_balloc(), and use that to estimate the number of dirty pages belonging
to LFS (subsystem or filesystem).  This is almost certainly wrong for
the case of a large mmap()ed region, but the accounting is tighter than
what we had before, and performs much better in the typical case of pages
dirtied through write().

Revision 1.84: download - view: text, markup, annotated - select for diffs
Sat Apr 16 19:52:09 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.83: preferred, colored
Changes since revision 1.83: +4 -2 lines
Make userland compile again.

Revision 1.83: download - view: text, markup, annotated - select for diffs
Sat Apr 16 17:35:58 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.82: preferred, colored
Changes since revision 1.82: +4 -4 lines
Use splay trees, rather than a hash table, to manage the accounting of
blocks allocated through VOP_BALLOC() for pages to be written to disk.
This accounting no longer takes a noticeable fraction of the system CPU.

Revision 1.82: download - view: text, markup, annotated - select for diffs
Sat Apr 16 17:28:37 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.81: preferred, colored
Changes since revision 1.81: +5 -3 lines
Use lfs_malloc() to manage the blkiov arrays that the cleaner functions use,
since the cleaner is likely to operate in a low-memory condition.

Revision 1.81: download - view: text, markup, annotated - select for diffs
Thu Apr 14 00:58:26 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.80: preferred, colored
Changes since revision 1.80: +5 -5 lines
Tabify leading whitespace

Revision 1.80: download - view: text, markup, annotated - select for diffs
Thu Apr 14 00:44:16 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.79: preferred, colored
Changes since revision 1.79: +3 -5 lines
Consolidate the hash table we use to maintain the integrity of lfs_avail
into a single, system-wide table, rather than having a separate hash table
per inode.  Significantly reduces the "system" cpu usage of your average
file write.

Revision 1.79: download - view: text, markup, annotated - select for diffs
Thu Apr 14 00:02:46 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.78: preferred, colored
Changes since revision 1.78: +3 -1 lines
Keep track of the highest block held by an LFS inode, so that we can
be assured that the last byte of a file is always allocated.  Previously
a file extension could cause the filesystem to be flushed, writing an
inconsistent inode to disk.  Although this condition would be corrected
the next time blocks were written to disk, an intervening crash would leave
the filesystem in an inconsistent state, leaving fsck_lfs to complain
of an inode "partially truncated".

Revision 1.78: download - view: text, markup, annotated - select for diffs
Fri Apr 1 21:59:46 2005 UTC (19 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.77: preferred, colored
Changes since revision 1.77: +50 -6 lines
Protect various per-fs structures with fs->lfs_interlock simple_lock, to
improve behavior in the multiprocessor case.  Add debugging segment-lock
assertion statements.

Revision 1.74.6.1: download - view: text, markup, annotated - select for diffs
Sat Mar 19 08:37:03 2005 UTC (19 years, 10 months ago) by yamt
Branches: yamt-km
Diff to: previous 1.74: preferred, colored; next MAIN 1.75: preferred, colored
Changes since revision 1.74: +75 -26 lines
sync with head.  xen and whitespace.  xen part is not finished.

Revision 1.64.2.6: download - view: text, markup, annotated - select for diffs
Tue Mar 8 13:53:12 2005 UTC (19 years, 11 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.5: preferred, colored
Changes since revision 1.64.2.5: +28 -10 lines
Sync with HEAD.

Revision 1.77: download - view: text, markup, annotated - select for diffs
Tue Mar 8 00:18:19 2005 UTC (19 years, 11 months ago) by perseant
Branches: MAIN
CVS tags: yamt-km-base4, yamt-km-base3, netbsd-3-base
Branch point for: netbsd-3
Diff to: previous 1.76: preferred, colored
Changes since revision 1.76: +28 -10 lines
Straighten out the maze of ifdefs.  Instead, consolidate all the debugging
stuff under '#ifdef DEBUG', and use sysctl knobs to turn on/off particular
parts of the debugging reporting (if DEBUG is enabled).  Re-enable the LFS
statistics in sysctl, while I'm there.  A bit of a rototill.

Revision 1.64.2.5: download - view: text, markup, annotated - select for diffs
Fri Mar 4 16:54:46 2005 UTC (19 years, 11 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.4: preferred, colored
Changes since revision 1.64.2.4: +49 -18 lines
Sync with HEAD.

Hi Perry!

Revision 1.76: download - view: text, markup, annotated - select for diffs
Sat Feb 26 22:32:20 2005 UTC (19 years, 11 months ago) by perry
Branches: MAIN
Diff to: previous 1.75: preferred, colored
Changes since revision 1.75: +3 -3 lines
nuke trailing whitespace

Revision 1.75: download - view: text, markup, annotated - select for diffs
Sat Feb 26 05:40:42 2005 UTC (19 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.74: preferred, colored
Changes since revision 1.74: +47 -16 lines
Various minor LFS improvements:

* Note when lfs_putpages(9) thinks it is not going to be writing any
  pages before calling genfs_putpages(9).  This prevents a situation in
  which blocks can be queued for writing without a segment header.
* Correct computation of NRESERVE(), though it is still a gross
  overestimate in most cases.  Note that if NRESERVE() is too high, it
  may be impossible to create files on the filesystem.  We catch this
  case on filesystem mount and refuse to mount r/w.
* Allow filesystems to be mounted whose block size is == MAXBSIZE.
* Somewhere along the line, ufs_bmaparray(9) started mangling UNWRITTEN
  entries in indirect blocks again, triggering a failed assertion "daddr
  <= LFS_MAX_DADDR".  Explicitly convert to and from int32_t to correct
  this.
* Add a high-water mark for the number of dirty pages any given LFS can
  hold before triggering a flush.  This is settable by sysctl, but off
  (zero) by default.
* Be more careful about the MAX_BYTES and MAX_BUFS computations so we
  shouldn't see "please increase to at least zero" messages.
* Note that VBLK and VCHR vnodes can have nonzero values in di_db[0]
  even though their v_size == 0.  Don't panic when we see this.
* Change lfs_bfree to a signed quantity.  The manner in which it is
  processed before being passed to the cleaner means that sometimes it
  may drop below zero, and the cleaner must be aware of this.
* Never report bfree < 0 (or higher than lfs_dsize) through
  lfs_statvfs(9).  This prevents df(1) from ever telling us that our full
  filesystems have 16TB free.
* Account space allocated through lfs_balloc(9) that does not have
  associated buffer headers, so that the pagedaemon doesn't run us out
  of segments.
* Return ENOSPC from lfs_balloc(9) when bfree drops to zero.
* Address a deadlock in lfs_bmapv/lfs_markv when the filesystem is being
  unmounted.  Because vfs_busy() is a shared lock, and
  lfs_bmapv/lfs_markv mark the filesystem vfs_busy(), the cleaner can be
  holding the lock that umount() is blocking on, then try to vfs_busy()
  again in getnewvnode().

Revision 1.64.2.4: download - view: text, markup, annotated - select for diffs
Tue Sep 21 13:39:10 2004 UTC (20 years, 4 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.3: preferred, colored
Changes since revision 1.64.2.3: +1 -1 lines
Fix the sync with head I botched.

Revision 1.64.2.3: download - view: text, markup, annotated - select for diffs
Sat Sep 18 14:56:59 2004 UTC (20 years, 4 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.2: preferred, colored
Changes since revision 1.64.2.2: +1 -1 lines
Sync with HEAD.

Revision 1.64.2.2: download - view: text, markup, annotated - select for diffs
Wed Aug 25 06:59:14 2004 UTC (20 years, 5 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64.2.1: preferred, colored
Changes since revision 1.64.2.1: +10 -7 lines
Sync with HEAD.

Revision 1.74: download - view: text, markup, annotated - select for diffs
Sat Aug 14 14:32:04 2004 UTC (20 years, 6 months ago) by mycroft
Branches: MAIN
CVS tags: yamt-km-base2, yamt-km-base, kent-audio1-beforemerge, kent-audio1-base, kent-audio1
Branch point for: yamt-km, kent-audio2
Diff to: previous 1.73: preferred, colored
Changes since revision 1.73: +5 -2 lines
Push atime/mtime updates even further -- into the reclaim path, so they happen
rarely in the normal case.  (Note: This happens at reboot/shutdown time because
all file systems are unmounted.)

Also, for IN_MODIFY, use IN_ACCESSED, not IN_MODIFIED; otherwise "ls -l" of
your device node or FIFO would cause the time stamps to get written too
quickly.

Revision 1.73: download - view: text, markup, annotated - select for diffs
Sat Aug 14 01:08:03 2004 UTC (20 years, 6 months ago) by mycroft
Branches: MAIN
Diff to: previous 1.72: preferred, colored
Changes since revision 1.72: +6 -6 lines
Add a new flag, IN_MODIFY.  This is like IN_UPDATE|IN_CHANGE, but unlike
setting those flags, it does not cause the inode to be written in the periodic
sync.  This is used for writes to special files (devices and named pipes) and
FIFOs.

Do not preemptively sync updates to access times and modification times.  They
are now updated in the inode only opportunistically, or when the file or device
is closed.  (Really, it should be delayed beyond close, but this is enough to
help substantially with device nodes.)

And the most amusing part:
Trickle sync was broken on both FFS and ext2fs, in different ways.  In FFS, the
periodic call to VFS_SYNC(MNT_LAZY) was still causing all file data to be
synced.  In ext2fs, it was causing the metadata to *not* be synced.  We now
only call VOP_UPDATE() on the node if we're doing MNT_LAZY.  I've confirmed
that we do in fact trickle correctly now.

Revision 1.64.2.1: download - view: text, markup, annotated - select for diffs
Tue Aug 3 10:56:57 2004 UTC (20 years, 6 months ago) by skrll
Branches: ktrace-lwp
Diff to: previous 1.64: preferred, colored
Changes since revision 1.64: +20 -18 lines
Sync with HEAD

Revision 1.72: download - view: text, markup, annotated - select for diffs
Tue Mar 9 06:43:18 2004 UTC (20 years, 11 months ago) by yamt
Branches: MAIN
CVS tags: netbsd-2-base, netbsd-2-0-base, netbsd-2-0-RELEASE, netbsd-2-0-RC5, netbsd-2-0-RC4, netbsd-2-0-RC3, netbsd-2-0-RC2, netbsd-2-0-RC1, netbsd-2-0-3-RELEASE, netbsd-2-0-2-RELEASE, netbsd-2-0-1-RELEASE, netbsd-2-0
Branch point for: netbsd-2
Diff to: previous 1.71: preferred, colored
Changes since revision 1.71: +4 -1 lines
use correct segment size.  this fixes memory corruption when using lfsv1.

Revision 1.71: download - view: text, markup, annotated - select for diffs
Wed Jan 28 10:54:23 2004 UTC (21 years ago) by yamt
Branches: MAIN
Diff to: previous 1.70: preferred, colored
Changes since revision 1.70: +4 -4 lines
use bufmem instead of bufpages to make lfs a little less broken.

Revision 1.70: download - view: text, markup, annotated - select for diffs
Sun Sep 7 11:53:57 2003 UTC (21 years, 5 months ago) by yamt
Branches: MAIN
Diff to: previous 1.69: preferred, colored
Changes since revision 1.69: +1 -4 lines
- raise spl to bio in lfs_countlocked() rather than having callers to do so.
- buffer cache MP locks.
- assert B_CALL buffers are not on the free queue.

Revision 1.69: download - view: text, markup, annotated - select for diffs
Thu Aug 7 16:34:33 2003 UTC (21 years, 6 months ago) by agc
Branches: MAIN
Diff to: previous 1.68: preferred, colored
Changes since revision 1.68: +2 -6 lines
Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

Revision 1.68: download - view: text, markup, annotated - select for diffs
Wed Jul 30 13:36:40 2003 UTC (21 years, 6 months ago) by yamt
Branches: MAIN
Diff to: previous 1.67: preferred, colored
Changes since revision 1.67: +1 -3 lines
using normal bufcache buffer for cluster buffer head.

Revision 1.67: download - view: text, markup, annotated - select for diffs
Sat Jul 12 16:17:06 2003 UTC (21 years, 7 months ago) by yamt
Branches: MAIN
Diff to: previous 1.66: preferred, colored
Changes since revision 1.66: +5 -3 lines
- protect global resource counts with lfs_subsys_lock.
- clean up scattered externs a little.

Revision 1.66: download - view: text, markup, annotated - select for diffs
Wed Jul 2 13:43:02 2003 UTC (21 years, 7 months ago) by yamt
Branches: MAIN
Diff to: previous 1.65: preferred, colored
Changes since revision 1.65: +3 -3 lines
use queue.h macros.

Revision 1.65: download - view: text, markup, annotated - select for diffs
Wed Jul 2 13:40:51 2003 UTC (21 years, 7 months ago) by yamt
Branches: MAIN
Diff to: previous 1.64: preferred, colored
Changes since revision 1.64: +7 -1 lines
- add a new functions, lfs_writer_enter/leave, and use them instead of
  duplicated code fragments.
- add an assertion.

Revision 1.64: download - view: text, markup, annotated - select for diffs
Wed Apr 23 07:20:37 2003 UTC (21 years, 9 months ago) by perseant
Branches: MAIN
Branch point for: ktrace-lwp
Diff to: previous 1.63: preferred, colored
Changes since revision 1.63: +15 -3 lines
Make LFS work better (though still not "well") as an NFS-exported
filesystem (and other things that needed to be fixed before the tests
would complete), to wit:

* Include the fs ident in the filehandle; improve stale filehandle checks.

* Change definition of blksize() to use the on-dinode size instead of
  the inode's i_size, so that fsck_lfs will work properly again.

* Use b_interlock in lfs_vtruncbuf.

* Postpone dirop reclamation until after the seglock has been released,
  so that lfs_truncate is not called with the segment lock held.

* Don't loop in lfs_fsync(), just write everything and wait.

* Be more careful about the interlock/uobjlock in lfs_putpages: when we
  lose this lock, we have to resynchronize dirtiness of pages in each
  block.

* Be sure to always write indirect blocks and update metadata in
  lfs_putpages; fixes a bug that caused blocks to be accounted to the
  wrong segment.

Revision 1.63: download - view: text, markup, annotated - select for diffs
Wed Apr 9 00:32:54 2003 UTC (21 years, 10 months ago) by thorpej
Branches: MAIN
Diff to: previous 1.62: preferred, colored
Changes since revision 1.62: +4 -3 lines
Use PAGE_SIZE rather than NBPG.

Revision 1.62: download - view: text, markup, annotated - select for diffs
Wed Apr 2 10:39:39 2003 UTC (21 years, 10 months ago) by fvdl
Branches: MAIN
Diff to: previous 1.61: preferred, colored
Changes since revision 1.61: +10 -10 lines
Add support for UFS2. UFS2 is an enhanced FFS, adding support for
64 bit block pointers, extended attribute storage, and a few
other things.

This commit does not yet include the code to manipulate the extended
storage (for e.g. ACLs), this will be done later.

Originally written by Kirk McKusick and Network Associates Laboratories for
FreeBSD.

Revision 1.61: download - view: text, markup, annotated - select for diffs
Fri Mar 28 08:03:38 2003 UTC (21 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.60: preferred, colored
Changes since revision 1.60: +332 -314 lines
Add a sleeper count, to prevent the cleaner from panicing the kernel
when the filesystem is unmounted, relocking the Ifile when its lock is
draining.  (We can't use vfs_busy() since the process is sleeping for a
good long time.)  Clean up / organize lfs.h, while I'm here.

In lfs_update_single, assert that disk addresses are either negative, or
are still positive when converted to int32_t, to prevent recurrence of a
negative/positive block problem.

Revision 1.60: download - view: text, markup, annotated - select for diffs
Fri Mar 21 06:26:36 2003 UTC (21 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.59: preferred, colored
Changes since revision 1.59: +5 -5 lines
KNF (space after keywords).

Revision 1.59: download - view: text, markup, annotated - select for diffs
Fri Mar 21 06:16:53 2003 UTC (21 years, 10 months ago) by perseant
Branches: MAIN
Diff to: previous 1.58: preferred, colored
Changes since revision 1.58: +4 -3 lines
Use VONWORKLST as a heuristic for vnode emptiness, rather than exhaustively
checking the memq.

Take greater care not to dirty the Ifile vnode when unmounting the filesystem.
This should fix a "(vp->v_flag & VONWORKLST) == 0" assertion panic in vgonel
that could occur when unmounting.

Do not allow the Ifile to be mapped for writing.

Revision 1.58: download - view: text, markup, annotated - select for diffs
Sat Mar 15 06:58:49 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.57: preferred, colored
Changes since revision 1.57: +6 -1 lines
Add simple_lock protection for lfs_seglock and lfs_subsys_pages; these will
be expanded to cover other per-fs and subsystem-wide data as well.

Fix a case of IN_MODIFIED being set without updating lfs_uinodes, resulting
in a "lfs_uinodes < 0" panic.

Fix a deadlock in lfs_putpages arising from the need to busy all pages in a
block; unbusy any that had already been busied before starting over.

Revision 1.57: download - view: text, markup, annotated - select for diffs
Tue Mar 11 02:47:39 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.56: preferred, colored
Changes since revision 1.56: +1 -7 lines
- Get rid of unused #ifdefs LFS_NO_PAGEMOVE and LFS_MALLOC_SUMMARY (both
  always true) and accompanying dead code.

- When constructing write clusters in lfs_writeseg, if the block we are
  about to add is itself a cluster from GOP_WRITE, don't put a cluster
  in a cluster, just write the GOP_WRITE cluster on its own.  This seems
  to represent a slight performance gain on my test machine.

- Charge someone's rusage for writes on LFSes.  It's difficult to tell
  who the "right" process to charge is; just charge whoever triggered
  the write.

Revision 1.56: download - view: text, markup, annotated - select for diffs
Sat Mar 8 22:14:31 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.55: preferred, colored
Changes since revision 1.55: +2 -6 lines
Take away "#ifdef LFS_UBC".

Revision 1.55: download - view: text, markup, annotated - select for diffs
Sat Mar 8 02:55:47 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.54: preferred, colored
Changes since revision 1.54: +5 -2 lines
Add an lfs_strategy() that checks to make sure we're not trying to read
where the cleaner is trying to write, instead of tying up the "live"
buffers (or pages).

Fix a bug in the LFS_UBC case where oversized buffers would not be
checksummed correctly, causing uncleanable segments.

Make sure that wakeup(fs->lfs_iocount) is done if fs->lfs_iocount is 1
as well as 0, since we wait in some places for it to drop to 1.

Activate all pages that make it into lfs_gop_write without the segment
lock held, since they must have been dirtied very recently, even if
PG_DELWRI is not set.

Revision 1.54: download - view: text, markup, annotated - select for diffs
Sun Mar 2 04:34:30 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.53: preferred, colored
Changes since revision 1.53: +8 -6 lines
Account SEGUSE_ACTIVE correctly so that the automatic segment cleaning
actually happens.

Add a new fcntl call that will write the minimum necessary to checkpoint
(i.e., for on-disk directory structure to be consistent, not including
updates to file data) so that the cleaner can clean segments more quickly
without sacrificing three-way commit for cleaning.

Revision 1.53: download - view: text, markup, annotated - select for diffs
Thu Feb 27 07:10:27 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.52: preferred, colored
Changes since revision 1.52: +4 -4 lines
Do roundup and offset arithmetic in 64 bits, to allow >=2G files.

Revision 1.52: download - view: text, markup, annotated - select for diffs
Tue Feb 25 23:12:07 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.51: preferred, colored
Changes since revision 1.51: +7 -7 lines
Make fs-specific fcntl macros take three arguments (approved wrstuden).
Let LFS use fcntl for cleaner functions.

Revision 1.51: download - view: text, markup, annotated - select for diffs
Mon Feb 24 08:42:49 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.50: preferred, colored
Changes since revision 1.50: +14 -1 lines
Add lfs_ioctl vnode op, with ioctls to take over cleaner system call
functionality (not including segment clean, since that is now done
automatically as checkpoints happen).

Revision 1.50: download - view: text, markup, annotated - select for diffs
Sun Feb 23 00:22:33 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.49: preferred, colored
Changes since revision 1.49: +4 -3 lines
Fix a buffer overflow bug in the LFS_UBC case that manifested itself
either as a mysterious UVM error or as "panic: dirty bufs".  Verify
maximum size in lfs_malloc.

Teach lfs_updatemeta and lfs_shellsort about oversized cluster blocks from
lfs_gop_write.

When unwiring pages in lfs_gop_write, deactivate them, under the theory
that the pagedaemon wanted to free them last we knew.

Revision 1.49: download - view: text, markup, annotated - select for diffs
Thu Feb 20 04:27:23 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.48: preferred, colored
Changes since revision 1.48: +189 -189 lines
Tabify, and fix some comment alignment problems.

Revision 1.48: download - view: text, markup, annotated - select for diffs
Wed Feb 19 12:49:10 2003 UTC (21 years, 11 months ago) by yamt
Branches: MAIN
Diff to: previous 1.47: preferred, colored
Changes since revision 1.47: +3 -2 lines
workaround for "another flush is..." infinity loop in writerd.
if we're writerd, sleep in lfs_flush until another writer goes away
instead of busy loop in writed.

Revision 1.47: download - view: text, markup, annotated - select for diffs
Tue Feb 18 14:58:31 2003 UTC (21 years, 11 months ago) by soren
Branches: MAIN
Diff to: previous 1.46: preferred, colored
Changes since revision 1.46: +3 -1 lines
Make libsa compile again.

Revision 1.46: download - view: text, markup, annotated - select for diffs
Mon Feb 17 23:48:16 2003 UTC (21 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.45: preferred, colored
Changes since revision 1.45: +104 -18 lines
Add code to UBCify LFS.  This is still behind "#ifdef LFS_UBC" for now
(there are still some details to work out) but expect that to go
away soon.  To support these basic changes (creation of lfs_putpages,
lfs_gop_write, mods to lfs_balloc) several other changes were made, to
wit:

* Create a writer daemon kernel thread whose purpose is to handle page
  writes for the pagedaemon, but which also takes over some of the
  functions of lfs_check().  This thread is started the first time an
  LFS is mounted.

* Add a "flags" parameter to GOP_SIZE.  Current values are
  GOP_SIZE_READ, meaning that the call should return the size of the
  in-core version of the file, and GOP_SIZE_WRITE, meaning that it
  should return the on-disk size.  One of GOP_SIZE_READ or
  GOP_SIZE_WRITE must be specified.

* Instead of using malloc(...M_WAITOK) for everything, reserve enough
  resources to get by and use malloc(...M_NOWAIT), using the reserves if
  necessary.  Use the pool subsystem for structures small enough that
  this is feasible.  This also obsoletes LFS_THROTTLE.

And a few that are not strictly necessary:

* Moves the LFS inode extensions off onto a separately allocated
  structure; getting closer to LFS as an LKM.  "Welcome to 1.6O."

* Unified GOP_ALLOC between FFS and LFS.

* Update LFS copyright headers to correct values.

* Actually cast to unsigned in lfs_shellsort, like the comment says.

* Keep track of which segments were empty before the previous
  checkpoint; any segments that pass two checkpoints both dirty and
  empty can be summarily cleaned.  Do this.  Right now lfs_segclean
  still works, but this should be turned into an effectless
  compatibility syscall.

Revision 1.45: download - view: text, markup, annotated - select for diffs
Wed Jan 29 13:14:33 2003 UTC (22 years ago) by yamt
Branches: MAIN
Diff to: previous 1.44: preferred, colored
Changes since revision 1.44: +3 -1 lines
don't use daddr_t for segment summary since it's an on-disk structure.

Revision 1.44: download - view: text, markup, annotated - select for diffs
Mon Jan 27 23:17:56 2003 UTC (22 years ago) by yamt
Branches: MAIN
Diff to: previous 1.43: preferred, colored
Changes since revision 1.43: +2 -2 lines
make these compilable with lfs debug options.
(follow daddr_t change)

XXX maybe segment number should be 64bit.

Revision 1.43: download - view: text, markup, annotated - select for diffs
Fri Jan 24 21:55:25 2003 UTC (22 years ago) by fvdl
Branches: MAIN
Diff to: previous 1.42: preferred, colored
Changes since revision 1.42: +25 -22 lines
Bump daddr_t to 64 bits. Replace it with int32_t in all places where
it was used on-disk, so that on-disk formats remain the same.
Remove ufs_daddr_t and ufs_lbn_t for the time being.

Revision 1.36.2.5: download - view: text, markup, annotated - select for diffs
Wed Dec 11 06:51:43 2002 UTC (22 years, 2 months ago) by thorpej
Branches: nathanw_sa
CVS tags: nathanw_sa_end
Diff to: previous 1.36.2.4: preferred, colored; branchpoint 1.36: preferred, colored; next MAIN 1.37: preferred, colored
Changes since revision 1.36.2.4: +7 -0 lines
Sync with HEAD.

Revision 1.42: download - view: text, markup, annotated - select for diffs
Sun Dec 1 00:12:10 2002 UTC (22 years, 2 months ago) by matt
Branches: MAIN
CVS tags: nathanw_sa_before_merge, nathanw_sa_base, gmcgarry_ucred_base, gmcgarry_ucred, gmcgarry_ctxsw_base, gmcgarry_ctxsw, fvdl_fs64_base
Diff to: previous 1.41: preferred, colored
Changes since revision 1.41: +8 -1 lines
Add multiple inclusion protection for headers.  Fix mismatched
variable declarations (missing const's) as needed.

Revision 1.36.6.4: download - view: text, markup, annotated - select for diffs
Fri Sep 6 08:50:14 2002 UTC (22 years, 5 months ago) by jdolecek
Branches: kqueue
Diff to: previous 1.36.6.3: preferred, colored; branchpoint 1.36: preferred, colored; next MAIN 1.37: preferred, colored
Changes since revision 1.36.6.3: +3 -1 lines
sync kqueue branch with HEAD

Revision 1.36.2.4: download - view: text, markup, annotated - select for diffs
Thu Aug 1 02:47:03 2002 UTC (22 years, 6 months ago) by nathanw
Branches: nathanw_sa
Diff to: previous 1.36.2.3: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.2.3: +3 -1 lines
Catch up to -current.

Revision 1.39.2.2: download - view: text, markup, annotated - select for diffs
Mon Jul 15 10:37:23 2002 UTC (22 years, 7 months ago) by gehenna
Branches: gehenna-devsw
Diff to: previous 1.39.2.1: preferred, colored; branchpoint 1.39: preferred, colored; next MAIN 1.40: preferred, colored
Changes since revision 1.39.2.1: +3 -1 lines
catch up with -current.

Revision 1.41: download - view: text, markup, annotated - select for diffs
Sat Jul 6 01:30:11 2002 UTC (22 years, 7 months ago) by perseant
Branches: MAIN
CVS tags: kqueue-beforemerge, kqueue-base, kqueue-aftermerge, gehenna-devsw-base
Diff to: previous 1.40: preferred, colored
Changes since revision 1.40: +3 -1 lines
Deal with fragment size changes better.  For each fragment that can
exist on an on-disk inode, we keep a record of its size in struct inode,
which is updated when we write the block to disk.  The cleaner routines
thus have ready access to what size is the correct size for this block,
on disk.

Fixed a related bug: if a file with fragments is being cleaned
(fragments being cleaned) at the same time it is being extended beyond
NDADDR blocks, we could write a bogus FINFO record that has a frag in the
middle; when it was cleaned this would give back bogus file data.  Don't
write the indirect blocks in this case, since there is no need.

lfs_fragextend and lfs_truncate no longer require the seglock, but instead
take a shared lock, which the seglock locks exclusively.

Revision 1.36.6.3: download - view: text, markup, annotated - select for diffs
Sun Jun 23 17:52:09 2002 UTC (22 years, 7 months ago) by jdolecek
Branches: kqueue
Diff to: previous 1.36.6.2: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.6.2: +92 -14 lines
catch up with -current on kqueue branch

Revision 1.39.2.1: download - view: text, markup, annotated - select for diffs
Thu Jun 20 15:53:07 2002 UTC (22 years, 7 months ago) by gehenna
Branches: gehenna-devsw
Diff to: previous 1.39: preferred, colored
Changes since revision 1.39: +4 -1 lines
catch up with -current.

Revision 1.39.4.1: download - view: text, markup, annotated - select for diffs
Thu Jun 20 03:51:02 2002 UTC (22 years, 7 months ago) by lukem
Branches: netbsd-1-6
CVS tags: netbsd-1-6-RELEASE, netbsd-1-6-RC3, netbsd-1-6-RC2, netbsd-1-6-RC1, netbsd-1-6-PATCH002-RELEASE, netbsd-1-6-PATCH002-RC4, netbsd-1-6-PATCH002-RC3, netbsd-1-6-PATCH002-RC2, netbsd-1-6-PATCH002-RC1, netbsd-1-6-PATCH002, netbsd-1-6-PATCH001-RELEASE, netbsd-1-6-PATCH001-RC3, netbsd-1-6-PATCH001-RC2, netbsd-1-6-PATCH001-RC1, netbsd-1-6-PATCH001
Diff to: previous 1.39: preferred, colored; next MAIN 1.40: preferred, colored
Changes since revision 1.39: +4 -1 lines
Pull up revision 1.40 (requested by perseant in ticket #325):
For synchronous writes, keep separate i/o counters for each write, so
processes don't have to wait for one another to finish (e.g., nfsd seems
to be a little happier now, though I haven't measured the difference).
Synchronous checkpoints, however, must always wait for all i/o to finish.
Take the contents of the callback functions and have them run in thread
context instead (aiodoned thread).  lfs_iocount no longer has to be
protected in splbio(), and quite a bit less of the segment construction
loop needs to be in splbio() as well.
If lfs_markv is handed a block that is not the correct size according to
the inode, refuse to process it.  (Formerly it was extended to the "correct"
size.)  This is possibly more prone to deadlock, but less prone to corruption.
lfs_segclean now outright refuses to clean segments that appear to have live
bytes in them.  Again this may be more prone to deadlock but avoids
corruption.
Replace ufsspec_close and ufsfifo_close with LFS equivalents; this means
that no UFS functions need to know about LFS_ITIMES any more.  Remove
the reference from ufs/inode.h.
Tested on i386, test-compiled on alpha.

Revision 1.36.2.3: download - view: text, markup, annotated - select for diffs
Thu Jun 20 03:50:26 2002 UTC (22 years, 7 months ago) by nathanw
Branches: nathanw_sa
Diff to: previous 1.36.2.2: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.2.2: +92 -14 lines
Catch up to -current.

Revision 1.40: download - view: text, markup, annotated - select for diffs
Sun Jun 16 00:13:15 2002 UTC (22 years, 8 months ago) by perseant
Branches: MAIN
Diff to: previous 1.39: preferred, colored
Changes since revision 1.39: +4 -1 lines
For synchronous writes, keep separate i/o counters for each write, so
processes don't have to wait for one another to finish (e.g., nfsd seems
to be a little happier now, though I haven't measured the difference).
Synchronous checkpoints, however, must always wait for all i/o to finish.

Take the contents of the callback functions and have them run in thread
context instead (aiodoned thread).  lfs_iocount no longer has to be
protected in splbio(), and quite a bit less of the segment construction
loop needs to be in splbio() as well.

If lfs_markv is handed a block that is not the correct size according to
the inode, refuse to process it.  (Formerly it was extended to the "correct"
size.)  This is possibly more prone to deadlock, but less prone to corruption.

lfs_segclean now outright refuses to clean segments that appear to have live
bytes in them.  Again this may be more prone to deadlock but avoids
corruption.

Replace ufsspec_close and ufsfifo_close with LFS equivalents; this means
that no UFS functions need to know about LFS_ITIMES any more.  Remove
the reference from ufs/inode.h.

Tested on i386, test-compiled on alpha.

Revision 1.39: download - view: text, markup, annotated - select for diffs
Tue May 14 20:03:53 2002 UTC (22 years, 9 months ago) by perseant
Branches: MAIN
CVS tags: netbsd-1-6-base
Branch point for: netbsd-1-6, gehenna-devsw
Diff to: previous 1.38: preferred, colored
Changes since revision 1.38: +89 -14 lines
Phase one of my three-phase plan to make LFS play nice with UBC, and bug-fixes
I found while making sure there weren't any new ones.

* Make the write clusters keep track of the buffers whose blocks they contain.
  This should make it possible to (1) write clusters using a page mapping
  instead of malloc, if desired, and (2) schedule blocks for rewriting
  (somewhere else) if a write error occurs.  Code is present to use
  pagemove() to construct the clusters but that is untested and will go away
  anyway in favor of page mapping.
* DEBUG now keeps a log of Ifile writes, so that any lingering instances of
  the "dirty bufs" problem can be properly debugged.
* Keep track of whether the Ifile has been dirtied by various routines that
  can be called by lfs_segwrite, and loop on that until it is clean, for
  a checkpoint.  Checkpoints need to be squeaky clean.
* Warn the user (once) if the Ifile grows larger than is reasonable for their
  buffer cache.  Both lfs_mountfs and lfs_unmount check since the Ifile can
  grow.
* If an inode is not found in a disk block, try rereading the block, under
  the assumption that the block was copied to a cluster and then freed.
* Protect WRITEINPROG() with splbio() to fix a hang in lfs_update.

Revision 1.36.6.2: download - view: text, markup, annotated - select for diffs
Thu Jan 10 20:05:08 2002 UTC (23 years, 1 month ago) by thorpej
Branches: kqueue
Diff to: previous 1.36.6.1: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.6.1: +9 -9 lines
Sync kqueue branch with -current.

Revision 1.36.2.2: download - view: text, markup, annotated - select for diffs
Tue Jan 8 00:34:50 2002 UTC (23 years, 1 month ago) by nathanw
Branches: nathanw_sa
Diff to: previous 1.36.2.1: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.2.1: +9 -9 lines
Catch up to -current.

Revision 1.38: download - view: text, markup, annotated - select for diffs
Fri Nov 23 21:44:25 2001 UTC (23 years, 2 months ago) by chs
Branches: MAIN
CVS tags: newlock-base, newlock, ifpoll-base, eeh-devprop-base, eeh-devprop
Diff to: previous 1.37: preferred, colored
Changes since revision 1.37: +9 -9 lines
add spaces for KNF.  confirmed to produce identical objects.

Revision 1.36.2.1: download - view: text, markup, annotated - select for diffs
Fri Aug 24 00:13:22 2001 UTC (23 years, 5 months ago) by nathanw
Branches: nathanw_sa
Diff to: previous 1.36: preferred, colored
Changes since revision 1.36: +212 -94 lines
Catch up with -current.

Revision 1.36.6.1: download - view: text, markup, annotated - select for diffs
Fri Aug 3 04:14:07 2001 UTC (23 years, 6 months ago) by lukem
Branches: kqueue
Diff to: previous 1.36: preferred, colored
Changes since revision 1.36: +212 -94 lines
update to -current

Revision 1.37: download - view: text, markup, annotated - select for diffs
Fri Jul 13 20:30:22 2001 UTC (23 years, 7 months ago) by perseant
Branches: MAIN
CVS tags: thorpej-mips-cache-base, thorpej-mips-cache, thorpej-devvp-base3, thorpej-devvp-base2, thorpej-devvp-base, thorpej-devvp, pre-chs-ubcperf, post-chs-ubcperf
Diff to: previous 1.36: preferred, colored
Changes since revision 1.36: +212 -94 lines
Merge the short-lived perseant-lfsv2 branch into the trunk.

Kernels and tools understand both v1 and v2 filesystems; newfs_lfs
generates v2 by default.  Changes for the v2 layout include:

- Segments of non-PO2 size and arbitrary block offset, so these can be
  matched to convenient physical characteristics of the partition (e.g.,
  stripe or track size and offset).

- Address by fragment instead of by disk sector, paving the way for
  non-512-byte-sector devices.  In theory fragments can be as large
  as you like, though in reality they must be smaller than MAXBSIZE in size.

- Use serial number and filesystem identifier to ensure that roll-forward
  doesn't get old data and think it's new.  Roll-forward is enabled for
  v2 filesystems, though not for v1 filesystems by default.

- The inode free list is now a tailq, paving the way for undelete (undelete
  is not yet implemented, but can be without further non-backwards-compatible
  changes to disk structures).

- Inode atime information is kept in the Ifile, instead of on the inode;
  that is, the inode is never written *just* because atime was changed.
  Because of this the inodes remain near the file data on the disk, rather
  than wandering all over as the disk is read repeatedly.  This speeds up
  repeated reads by a small but noticeable amount.

Other changes of note include:

- The ifile written by newfs_lfs can now be of arbitrary length, it is no
  longer restricted to a single indirect block.

- Fixed an old bug where ctime was changed every time a vnode was created.
  I need to look more closely to make sure that the times are only updated
  during write(2) and friends, not after-the-fact during a segment write,
  and certainly not by the cleaner.

Revision 1.36.4.4: download - view: text, markup, annotated - select for diffs
Fri Jul 13 04:51:23 2001 UTC (23 years, 7 months ago) by perseant
Branches: perseant-lfsv2
Diff to: previous 1.36.4.3: preferred, colored; branchpoint 1.36: preferred, colored; next MAIN 1.37: preferred, colored
Changes since revision 1.36.4.3: +1 -2 lines
Be more careful about when we update ctime/mtime.  In particular, if we
are only writing indirect blocks, that doesn't count for mtime; and when
we first create a vnode, that certainly *does not* count for ctime
(a bug that's been there from the beginning).

This does not change the fact that mtime might still be set after write(2)
is "completed", but it does make the atime-in-the-ifile code have some
effect (noticeable less degradation of read time after an intervening
large write).

Revision 1.36.4.3: download - view: text, markup, annotated - select for diffs
Tue Jul 10 01:43:29 2001 UTC (23 years, 7 months ago) by perseant
Branches: perseant-lfsv2
Diff to: previous 1.36.4.2: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.4.2: +21 -8 lines
Turn the free list into a tailq, with both head and tail kept on the ifile.

Update access times on the inode even if it does not get marked IN_ACCESS.

Revision 1.36.4.2: download - view: text, markup, annotated - select for diffs
Mon Jul 2 17:48:17 2001 UTC (23 years, 7 months ago) by perseant
Branches: perseant-lfsv2
Diff to: previous 1.36.4.1: preferred, colored; branchpoint 1.36: preferred, colored
Changes since revision 1.36.4.1: +37 -28 lines
Change disk addressing unit to be the fragment, instead of the disk sector.
All quantities in the superblock, inodes, indirect blocks, etc. refer now
to this abstract unit (called "fsb" as it is in FFS) instead of disk sectors;
as a consequence segment summary blocks have to be multiples of a fragment in
size.  In v1 filesystems, compatibility code ensures that 1 fsb == 1 sector,
regardless of fragment size.

Fragments can now range in size between 512 and 32k; in the event that
LFS_LABELPAD (8k) is smaller than the disk address unit size, an extra
proto-superblock is kept at 8k from the beginning of the disk, to be used
*only* to locate the real superblocks.  (Not all of the userland knows about
this yet.)

Almost all of this was done not by me, but by joff.

Revision 1.36.4.1: download - view: text, markup, annotated - select for diffs
Wed Jun 27 03:49:39 2001 UTC (23 years, 7 months ago) by perseant
Branches: perseant-lfsv2
Diff to: previous 1.36: preferred, colored
Changes since revision 1.36: +184 -87 lines
Import of what I've been calling "LFSv2", that is, LFS with some features
added that require changes to the on-disk data structures.  These include:

- 64-bit time in everything but inodes
- User-specified segment offset, and segment size no longer
  restricted to PO2.
- Serial number on segment summaries in addition to timestamp, and
  a new volume identifier, to make roll-forward feasible without
  fear of finding old data and thinking it was new.

Although I think this version works at least as well as what's on the trunk,
we're not done yet; hence this commit is going in on a branch and not on
the trunk.  Enhancements that are not here yet include fragment addressing,
like FFS does, instead of block addressing.

Revision 1.25.2.2: download - view: text, markup, annotated - select for diffs
Sat Feb 3 21:50:12 2001 UTC (24 years ago) by he
Branches: netbsd-1-5
CVS tags: netbsd-1-5-PATCH003, netbsd-1-5-PATCH002, netbsd-1-5-PATCH001
Diff to: previous 1.25.2.1: preferred, colored; branchpoint 1.25: preferred, colored; next MAIN 1.26: preferred, colored
Changes since revision 1.25.2.1: +42 -1 lines
Pull up revisions 1.33-1.35 (requested by perseant):
  o Don't write anything if the filesystem is idle (PR#10979).
  o Close up accounting holes in LFS' accounting of immediately-
    available-space, number of clean segments, and amount of dirty
    space taken up by metadata (PR#11468, PR#11470, PR#11534).

Revision 1.16.2.3: download - view: text, markup, annotated - select for diffs
Fri Jan 5 17:37:02 2001 UTC (24 years, 1 month ago) by bouyer
Branches: thorpej_scsipi
Diff to: previous 1.16.2.2: preferred, colored; branchpoint 1.16: preferred, colored; next MAIN 1.17: preferred, colored
Changes since revision 1.16.2.2: +2 -2 lines
Sync with HEAD

Revision 1.36: download - view: text, markup, annotated - select for diffs
Wed Dec 20 00:24:23 2000 UTC (24 years, 1 month ago) by cgd
Branches: MAIN
CVS tags: thorpej_scsipi_nbase, thorpej_scsipi_beforemerge, thorpej_scsipi_base, perseant-lfsv2-base
Branch point for: perseant-lfsv2, nathanw_sa, kqueue
Diff to: previous 1.35: preferred, colored
Changes since revision 1.35: +3 -3 lines
replace \<space(s)><newline> (wrong!) with \<newline>

Revision 1.16.2.2: download - view: text, markup, annotated - select for diffs
Wed Nov 22 16:06:48 2000 UTC (24 years, 2 months ago) by bouyer
Branches: thorpej_scsipi
Diff to: previous 1.16.2.1: preferred, colored; branchpoint 1.16: preferred, colored
Changes since revision 1.16.2.1: +42 -1 lines
Sync with HEAD.

Revision 1.16.2.1: download - view: text, markup, annotated - select for diffs
Mon Nov 20 18:11:47 2000 UTC (24 years, 2 months ago) by bouyer
Branches: thorpej_scsipi
Diff to: previous 1.16: preferred, colored
Changes since revision 1.16: +105 -42 lines
Update thorpej_scsipi to -current as of a month ago

Revision 1.35: download - view: text, markup, annotated - select for diffs
Fri Nov 17 19:14:41 2000 UTC (24 years, 2 months ago) by perseant
Branches: MAIN
Diff to: previous 1.34: preferred, colored
Changes since revision 1.34: +30 -0 lines
Correct accounting of lfs_avail, locked_queue_count, and locked_queue_bytes.
(PR #11468).  In the case of fragment allocation, check to see if enough
space is available before extending a fragment already scheduled for writing.

The locked_queue_* variables indicate the number of buffer headers and bytes,
respectively, that are unavailable to getnewbuf() because they are locked up
waiting for LFS to flush them; make sure that that is actually what we're
counting, i.e., never count malloced buffers, and always use b_bufsize instead
of b_bcount.

If DEBUG is defined, the periodic calls to lfs_countlocked will now complain
if either counter is incorrect.  (In the future lfs_countlocked will not need
to be called at all if DEBUG is not defined.)

Revision 1.34: download - view: text, markup, annotated - select for diffs
Mon Nov 13 00:24:30 2000 UTC (24 years, 3 months ago) by perseant
Branches: MAIN
Diff to: previous 1.33: preferred, colored
Changes since revision 1.33: +1 -2 lines
Remove debugging code that accidentally went in with yesterday's commit.

Revision 1.33: download - view: text, markup, annotated - select for diffs
Sun Nov 12 07:58:36 2000 UTC (24 years, 3 months ago) by perseant
Branches: MAIN
Diff to: previous 1.32: preferred, colored
Changes since revision 1.32: +13 -1 lines
Do not needlessly dirty segment table blocks during lfs_segwrite,
preventing needless disk activity when the filesystem is idle.  (PR #10979.)

Revision 1.25.2.1: download - view: text, markup, annotated - select for diffs
Thu Sep 14 18:50:17 2000 UTC (24 years, 5 months ago) by perseant
Branches: netbsd-1-5
CVS tags: netbsd-1-5-RELEASE, netbsd-1-5-BETA2, netbsd-1-5-BETA
Diff to: previous 1.25: preferred, colored
Changes since revision 1.25: +89 -18 lines
Pull up recent LFS kernel changes (approved by thorpej):

ufs/ufs/inode.h, 1.20--1.22      (add i_lfs_effnblks extension ;
                                 make ITIMES aware of LFS_ITIMES;
                                 _LKM protection so userland progs
                                 compile)
ufs/ufs/ufs_vnops.c, 1.69, 1.71  (remove IN_ADIROP;
                                 use ITIMES instead of FFS_ITIMES)
ufs/ufs/ufs_readwrite.c, 1.27    (use lfs_reserve in lfs_write)
ufs/lfs/lfs.h, 1.26--1.32        (define LFS_EST_* macros ;
                                 change MIN_FREE_SEGS to lfs_minfreesegs ;
                                 add avail and bfree to CLEANERINFO ;
                                 change lfs_uinodes to signed ;
                                 change lfs_dmeta to signed ;
                                 add whitespace to line up structure
                                 members ;
                                 explicit cast to int32_t in LFS_EST_*
                                 macros)
ufs/lfs/lfs_alloc.c, back out 1.34.2.3 (pullups of 1.39, 1.40);
then pull up         1.38        (clean up on error)
                     1.39--1.43  (restore fvdl's ufs_hashlock fix ;
                                 restore fvdl's ufs_hashlock fix ;
                                 set i_lfs_effnblks ;
                                 use UINO macros ;
                                 add comments and fix long lines)
ufs/lfs/lfs_balloc.c, 1.19       (don't succeed halfway)
                      1.21--1.25 (use i_lfs_effnblks ;
                                 fix i_lfs_effnblks computation and
                                 quieten ;
                                 fix i_ffs_blocks in unwritten fragment ;
                                 remove useless debugging check ;
                                 add comments and (c) 2000)
ufs/lfs/lfs_bio.c, 1.24--1.30    (cleanup and make lfs_flush_fs take
                                   "struct lfs *" instead of "struct
                                 mount *" ;
                                 use lfs_minfreeseg instead of
                                 MIN_FREE_SEGS ;
                                 use UINO macros, and copy bfree/avail
                                   to CLEANERINFO ;
                                 add lfs_reserve function ;
                                 1.28--1.30 fix printf formatting)
ufs/lfs/lfs_cksum.c, 1.13        (add (c) 2000)
ufs/lfs/lfs_debug.c, 1.11        (use btodb instead of DEV_BSIZE)
ufs/lfs/lfs_extern.h, 1.18, 1.20--1.21 (function prototype changes)
ufs/lfs/lfs_inode.c, 1.38        (rewrite lfs_truncate from
                                 ffs_truncate)
                     1.40--1.44  (count written and unwritten blocks
                                   seperately ;
                                 use disk block units instead of bytes ;
                                 remove unnecessary "mod" variable ;
                                 correct B_DELWRI to avoid bawrite panic ;
                                 use lfs_reserve)
ufs/lfs/lfs_segment.c, 1.52-1.59 (use lfs_dmeta to note used summaries ;
                                 check for UNWRITTEN in indirect blocks ;
                                 more debugging stuff inside #ifdef
                                 DEBUG_LFS ;
                                 use LK_CANRECURSE ;
                                 don't drop dirty indirect blocks ;
                                 use UINO macros ;
                                 don't hose the free list ;
                                 use btodb() instead of DEV_BSIZE ;
                                 make it compile again (oops))
ufs/lfs/lfs_subr.c, 1.16--1.17   (check for locked inodes before
                                 changing ;
                                 use btodb() instead of DEV_BSIZE, (c)
                                 2000)
ufs/lfs/lfs_syscalls.c, back out 1.41.4.2 (fvdl's ufs_hashlock fix);
then pull up          1.43       (use lfs_dmeta)
                      1.44--1.45 (restore fvdl's ufs_hashlock fix)
                      1.46--1.47 (fix lfs_avail leakage from sblock
                                 segments ;
                                 use UINO macros)
                      1.49       (bounds-check inode numbers in
                                 lfs_markv)
ufs/lfs/lfs_vfsops.c, 1.53       (use LFS_EST_* macros in lfs_statfs)
                      1.56--1.58 (initialize lfs_minfreeseg, lfs_effnblk ;
                                 initialize lfs_uinodes ;
                                 initialize lfs_ravail)
ufs/lfs/lfs_vnops.c, 1.40        (remove VDIROP from removed files)
                     1.42--1.44  (move SET_ENDOP below the removal of
                                 VDIROP ;
                                 use UINO macros and add lfs_itimes
                                 function ;
                                 use lfs_reserve in dirops)

Revision 1.32: download - view: text, markup, annotated - select for diffs
Wed Sep 13 00:07:56 2000 UTC (24 years, 5 months ago) by perseant
Branches: MAIN
Diff to: previous 1.31: preferred, colored
Changes since revision 1.31: +6 -4 lines
Cast back to int32_t in LFS_EST_BFREE and LFS_EST_RSVD macros, for
consistency with their arguments.

Change the debugging printf in lfs_reserve to match, and enclose it in
#ifdef DEBUG.

Tested on alpha, arm32, sparc.

Revision 1.31: download - view: text, markup, annotated - select for diffs
Sat Sep 9 04:49:54 2000 UTC (24 years, 5 months ago) by perseant
Branches: MAIN
Diff to: previous 1.30: preferred, colored
Changes since revision 1.30: +6 -4 lines
Various bug-fixes to LFS, to wit:


Kernel:

* Add runtime quantity lfs_ravail, the number of disk-blocks reserved
  for writing.  Writes to the filesystem first reserve a maximum amount
  of blocks before their write is allowed to proceed; after the blocks
  are allocated the reserved total is reduced by a corresponding amount.

  If the lfs_reserve function cannot immediately reserve the requested
  number of blocks, the inode is unlocked, and the thread sleeps until
  the cleaner has made enough space available for the blocks to be
  reserved.  In this way large files can be written to the filesystem
  (or, smaller files can be written to a nearly-full but thoroughly
  clean filesystem) and the cleaner can still function properly.

* Remove explicit switching on dlfs_minfreeseg from the kernel code; it
  is now merely a fs-creation parameter used to compute dlfs_avail and
  dlfs_bfree (and used by fsck_lfs(8) to check their accuracy).  Its
  former role is better assumed by a properly computed dlfs_avail.

* Bounds-check inode numbers submitted through lfs_bmapv and lfs_markv.
  This prevents a panic, but, if the cleaner is feeding the filesystem
  the wrong data, you are still in a world of hurt.

* Cleanup: remove explicit references of DEV_BSIZE in favor of
  btodb()/dbtob().

lfs_cleanerd:

* Make -n mean "send N segments' blocks through a single call to
  lfs_markv".  Previously it had meant "clean N segments though N calls
  to lfs_markv, before looking again to see if more need to be cleaned".
  The new behavior gives better packing of direct data on disk with as
  little metadata as possible, largely alleviating the problem that the
  cleaner can consume more disk through inefficient use of metadata than
  it frees by moving dirty data away from clean "holes" to produce
  entirely clean segments.

* Make -b mean "read as many segments as necessary to write N segments
  of dirty data back to disk", rather than its former meaning of "read
  as many segments as necessary to free N segments worth of space".  The
  new meaning, combined with the new -n behavior described above,
  further aids in cleaning storage efficiency as entire segments can be
  written at once, using as few blocks as possible for segment summaries
  and inode blocks.

* Make the cleaner take note of segments which could not be cleaned due
  to error, and not attempt to clean them until they are entirely free
  of dirty blocks.  This prevents the case in which a cleanerd running
  with -n 1 and without -b (formerly the default) would spin trying
  repeatedly to clean a corrupt segment, while the remaining space
  filled and deadlocked the filesystem.

* Update the lfs_cleanerd manual page to describe all the options,
  including the changes mentioned here (in particular, the -b and -n
  flags were previously undocumented).

fsck_lfs:

* Check, and optionally fix, lfs_avail (to an exact figure) and
  lfs_bfree (within a margin of error) in pass 5.

newfs_lfs:

* Reduce the default dlfs_minfreeseg to 1/20 of the total segments.

* Add a warning if the sgs disklabel field is 16 (the default for FFS'
  cpg, but not usually desirable for LFS' sgs: 5--8 is a better range).

* Change the calculation of lfs_avail and lfs_bfree, corresponding to
  the kernel changes mentioned above.

mount_lfs:

* Add -N and -b options to pass corresponding -n and -b options to
  lfs_cleanerd.

* Default to calling lfs_cleanerd with "-b -n 4".


[All of these changes were largely tested in the 1.5 branch, with the
idea that they (along with previous un-pulled-up work) could be applied
to the branch while it was still in ALPHA2; however my test system has
experienced corruption on another filesystem (/dev/console has gone
missing :^), and, while I believe this unrelated to the LFS changes, I
cannot with good conscience request that the changes be pulled up.]

Revision 1.30: download - view: text, markup, annotated - select for diffs
Sat Sep 9 04:18:28 2000 UTC (24 years, 5 months ago) by perseant
Branches: MAIN
Diff to: previous 1.29: preferred, colored
Changes since revision 1.29: +3 -3 lines
Change dlfs_dmeta and dlfs_avail to signed quantities, to prevent
underflow errors, visible in userland as impossibly high values
returned from df(1).

Revision 1.29: download - view: text, markup, annotated - select for diffs
Wed Jul 5 22:25:43 2000 UTC (24 years, 7 months ago) by perseant
Branches: MAIN
Diff to: previous 1.28: preferred, colored
Changes since revision 1.28: +47 -5 lines
Clean up accounting of lfs_uinodes (dirty but unwritten inodes).

Make lfs_uinodes a signed quantity for debugging purposes, and set it to
zero as fs mount time.

Enclose setting/clearing of the dirty flags (IN_MODIFIED, IN_ACCESSED,
IN_CLEANING) in macros, and use those macros everywhere.  Make
LFS_ITIMES use these macros; updated the ITIMES macro in inode.h to know
about this.  Make ufs_getattr use ITIMES instead of FFS_ITIMES.

Revision 1.28: download - view: text, markup, annotated - select for diffs
Tue Jul 4 22:30:37 2000 UTC (24 years, 7 months ago) by perseant
Branches: MAIN
Diff to: previous 1.27: preferred, colored
Changes since revision 1.27: +10 -11 lines
Fix errors observed while trying to fill the filesystem with yesterday's
fixes:

- Write copies of bfree and avail in the CLEANERINFO block, so the
  cleaner doesn't have to guess which superblock has the current
  information (if indeed any do).

- Tighten up accounting of lfs_avail (more needs to be done).

- When cleansing indirect blocks of UNWRITTEN, make sure not to mark
  them clean, since they'll need to be rewritten later.

Revision 1.27: download - view: text, markup, annotated - select for diffs
Mon Jul 3 01:45:46 2000 UTC (24 years, 7 months ago) by perseant
Branches: MAIN
Diff to: previous 1.26: preferred, colored
Changes since revision 1.26: +7 -5 lines
Allow the number of free segments reserved for the cleaner to be
parametrized in the filesystem, defaulting to MIN_FREE_SEGS = 2 but set
to something more reasonable at newfs_lfs time.

Note the number of blocks that have been scheduled for writing but which
are not yet on disk in an inode extension, i_lfs_effnblks.  Move
i_ffs_effnlink out of the ffs extension and onto the main inode, since
it's used all over the shared code and the lfs extension would clobber
it.

At inode write time, indirect blocks and inode-held blocks of inodes
that have i_lfs_effnblks != i_ffs_blocks are cleansed of UNWRITTEN disk
addresses, so that these never make it to disk.

Revision 1.26: download - view: text, markup, annotated - select for diffs
Tue Jun 27 20:57:11 2000 UTC (24 years, 7 months ago) by perseant
Branches: MAIN
Diff to: previous 1.25: preferred, colored
Changes since revision 1.25: +34 -10 lines
Fixes associated with filling an LFS:

Change the space computation to appear to change the size of the *disk*
rather than the *bytes used* when more segment summaries and inode
blocks are written.  Try to estimate the amount of space that these will
take up when more files are written, so the disk size doesn't change too
much.

Regularize error returns from lfs_valloc, lfs_balloc, lfs_truncate: they
now fail entirely, rather than succeeding half-way and leaving the fs in
an inconsistent state.

Rewrite lfs_truncate, mostly stealing from ffs_truncate.  The old
lfs_truncate had difficulty truncating a large file to a non-zero size
(indirect blocks were not handled appropriately).

Unmark VDIROP on fvp after ufs_remove, ufs_rmdir, so these can be
reclaimed immediately: this vnode would not be written to disk again
anyway if the removal succeeded, and if it failed, no directory
operation occurred.

ufs_makeinode and ufs_mkdir now remove IN_ADIROP on error.

Revision 1.23.2.1: download - view: text, markup, annotated - select for diffs
Thu Jun 22 17:10:35 2000 UTC (24 years, 7 months ago) by minoura
Branches: minoura-xpg4dl
Diff to: previous 1.23: preferred, colored; next MAIN 1.24: preferred, colored
Changes since revision 1.23: +7 -1 lines
Sync w/ netbsd-1-5-base.

Revision 1.25: download - view: text, markup, annotated - select for diffs
Tue Jun 6 20:19:14 2000 UTC (24 years, 8 months ago) by perseant
Branches: MAIN
CVS tags: netbsd-1-5-base, netbsd-1-5-ALPHA2
Branch point for: netbsd-1-5
Diff to: previous 1.24: preferred, colored
Changes since revision 1.24: +4 -1 lines
Protect inode free list with seglock, instead of separate lock, so that
the head of the inode free list (on the superblock) always matches the
rest of the free list (in the ifile).

Protect lfs_fragextend with seglock, to prevent the segment byte count
fudging from making its way to disk.

Don't try to inactivate dirop vnodes that are still in the middle of
their dirop (may address PR#10285).

Revision 1.24: download - view: text, markup, annotated - select for diffs
Wed May 31 01:40:01 2000 UTC (24 years, 8 months ago) by perseant
Branches: MAIN
Diff to: previous 1.23: preferred, colored
Changes since revision 1.23: +4 -1 lines
update for IN_ACCESSED changes

Revision 1.23: download - view: text, markup, annotated - select for diffs
Sat May 27 00:19:52 2000 UTC (24 years, 8 months ago) by perseant
Branches: MAIN
CVS tags: minoura-xpg4dl-base
Branch point for: minoura-xpg4dl
Diff to: previous 1.22: preferred, colored
Changes since revision 1.22: +2 -1 lines
Prevent dirops from getting around lfs_check and wedging the buffer cache.
All the dirop vnops now mark the inodes with a new flag, IN_ADIROP, which
is removed as soon as the dirop is done (as opposed to VDIROP which stays
until the file is written).  To address one issue raised in PR#9357.

Revision 1.22: download - view: text, markup, annotated - select for diffs
Sat May 13 23:43:14 2000 UTC (24 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.21: preferred, colored
Changes since revision 1.21: +1 -17 lines
Change the sementics of the last parameter from a boolean ("waitfor") to
a set of flags ("flags").  Two flags are defined, UPDATE_WAIT and
UPDATE_DIROP.

Under the old semantics, VOP_UPDATE would block if waitfor were set,
under the assumption that directory operations should be done
synchronously.  At least LFS and FFS+softdep do not make this
assumption; FFS+softdep got around the problem by enclosing all relevant
calls to VOP_UPDATE in a "if(!DOINGSOFTDEP(vp))", while LFS simply
ignored waitfor, one of the reasons why NFS-serving an LFS filesystem
did not work properly.

Under the new semantics, the UPDATE_DIROP flag is a hint to the
fs-specific update routine that the call comes from a dirop routine, and
should be wait for, or not, accordingly.

Closes PR#8996.

Revision 1.21: download - view: text, markup, annotated - select for diffs
Fri May 5 20:59:21 2000 UTC (24 years, 9 months ago) by perseant
Branches: MAIN
Diff to: previous 1.20: preferred, colored
Changes since revision 1.20: +4 -2 lines
Change the way LFS does block accounting, from trying to infer from the
buffer cache flags, to marking the inode and/or indirect blocks with a
special disk address UNWRITTEN==-2 when a block is accounted for.  (This
address is never written to disk, but only used in-core.  This is essentially
the same method of block accounting as on the UBC branch, where the buffer
headers don't exist.)  Make sure that truncation is handled properly,
especially in the case of holey files.

Fixes PR#9994.

Revision 1.14.2.4: download - view: text, markup, annotated - select for diffs
Thu Jan 20 21:00:49 2000 UTC (25 years ago) by he
Branches: netbsd-1-4
CVS tags: netbsd-1-4-PATCH003, netbsd-1-4-PATCH002
Diff to: previous 1.14.2.3: preferred, colored; branchpoint 1.14: preferred, colored; next MAIN 1.15: preferred, colored
Changes since revision 1.14.2.3: +2 -1 lines
Pull up revision 1.20 (requested by perseant):
  Files removed (through unlink, rmdir) are now really removed, though the
  removal is postponed until the dirop is complete to ensure validity of
  the filesystem through a crash.  Use a separate per-fs lock, instead of
  ufs_hashlock, to protect the inode free list.  Change calling semantics
  of lfs_ifind, to give better error reporting:  If fed a struct buf, it
  can report the block number of the offending inode block as well as the
  inode number.

Revision 1.20: download - view: text, markup, annotated - select for diffs
Wed Jan 19 00:03:04 2000 UTC (25 years ago) by perseant
Branches: MAIN
CVS tags: chs-ubc2-newbase
Diff to: previous 1.19: preferred, colored
Changes since revision 1.19: +2 -1 lines
Changes to stabilize LFS.  The first two of these should also apply to the
1.4 branch.

* Use a separate per-fs lock, instead of ufs_hashlock, to protect the Inode
  free list.  This seems to prevent the "lockmgr: %d, not exclusive lock holder
  %d, unlocking" message I was mis-attributing last night to an unlocked vnode
  being passed to vrele.

* Change calling semantics of lfs_ifind, to give better error reporting:
  If fed a struct buf, it can report the block number of the offending inode
  block as well as the inode number.

* Back out rev 1.10 of lfs_subr.c, since the replacement code was slightly
  uglier while being functionally identical.

* Make lfs_vunref use the same free list convention as vrele/vput, so that
  vget does not remove vnodes from a hash list they are not on.

Revision 1.16.6.1: download - view: text, markup, annotated - select for diffs
Mon Dec 27 18:36:39 1999 UTC (25 years, 1 month ago) by wrstuden
Branches: wrstuden-devbsize
Diff to: previous 1.16: preferred, colored; next MAIN 1.17: preferred, colored
Changes since revision 1.16: +7 -9 lines
Pull up to last week's -current.

Revision 1.14.2.3: download - view: text, markup, annotated - select for diffs
Fri Dec 17 23:53:17 1999 UTC (25 years, 2 months ago) by he
Branches: netbsd-1-4
Diff to: previous 1.14.2.2: preferred, colored; branchpoint 1.14: preferred, colored
Changes since revision 1.14.2.2: +5 -6 lines
Pull up revision 1.17 (requested by perseant):
  Address locking protocol error for inode hash, and make the
  maximum number of active dirops a global quantity.

Revision 1.14.2.2: download - view: text, markup, annotated - select for diffs
Fri Dec 17 23:20:39 1999 UTC (25 years, 2 months ago) by he
Branches: netbsd-1-4
Diff to: previous 1.14.2.1: preferred, colored; branchpoint 1.14: preferred, colored
Changes since revision 1.14.2.1: +2 -1 lines
Pull up revision 1.15 (requested by perseant):
  Avoid flushing vnodes involved in a dirop, making lfs' promise
  of "no fsck needed, even in the event of a crash" closer to
  reality.

Revision 1.19: download - view: text, markup, annotated - select for diffs
Wed Dec 15 07:10:34 1999 UTC (25 years, 2 months ago) by perseant
Branches: MAIN
CVS tags: wrstuden-devbsize-base, wrstuden-devbsize-19991221
Diff to: previous 1.18: preferred, colored
Changes since revision 1.18: +1 -2 lines
In lfs_bwrite, don't mark buffers dirty if lfs is mounted read-only.
(Previously buffers could be marked dirty by the cleaner, and possibly by
other means.)

Also check for softdep mount in vfs_shutdown before trying to bawrite
buffers, since other filesystems don't need it and lfs doesn't bawrite.
(This fragment reviewed by fvdl.)

Partially addresses PR#8964.

Revision 1.18: download - view: text, markup, annotated - select for diffs
Wed Dec 8 23:17:31 1999 UTC (25 years, 2 months ago) by simonb
Branches: MAIN
Diff to: previous 1.17: preferred, colored
Changes since revision 1.17: +3 -3 lines
Use an explicitly sized type (u_int32_t) for inode numbers in the super
block instead of ino_t.  Reviewed by Konrad Schroder.

Revision 1.14.6.1: download - view: text, markup, annotated - select for diffs
Tue Nov 30 13:36:22 1999 UTC (25 years, 2 months ago) by itojun
Branches: kame
CVS tags: kame_141_19991130
Diff to: previous 1.14: preferred, colored; next MAIN 1.15: preferred, colored
Changes since revision 1.14: +2 -1 lines
bring in latest KAME (as of 19991130, KAME/NetBSD141) into kame branch
just for reference purposes.
This commit includes 1.4 -> 1.4.1 sync for kame branch.

The branch does not compile at all (due to the lack of ALTQ and some other
source code).  Please do not try to modify the branch, this is just for
referenre purposes.

synchronization to latest KAME will take place on HEAD branch soon.

Revision 1.16.4.1: download - view: text, markup, annotated - select for diffs
Mon Nov 15 00:42:23 1999 UTC (25 years, 3 months ago) by fvdl
Branches: fvdl-softdep
Diff to: previous 1.16: preferred, colored; next MAIN 1.17: preferred, colored
Changes since revision 1.16: +5 -6 lines
Sync with -current

Revision 1.17.2.2: download - view: text, markup, annotated - select for diffs
Sat Nov 6 20:33:06 1999 UTC (25 years, 3 months ago) by perseant
Branches: comdex-fall-1999
Diff to: previous 1.17.2.1: preferred, colored; branchpoint 1.17: preferred, colored; next MAIN 1.18: preferred, colored
Changes since revision 1.17.2.1: +530 -0 lines
Address ufs_hashlock/ufs_ihashins protocol bug, discovered while doing a
post-mortem of a production machine.  Also, take the active dirop
count off of the fs and make it global (since it is measuring a global
resource) and tie the threshold value LFS_MAXDIROP to desiredvnodes.

Revision 1.17.2.1
Sat Nov 6 20:33:05 1999 UTC (25 years, 3 months ago) by perseant
Branches: comdex-fall-1999
FILE REMOVED
Changes since revision 1.17: +0 -530 lines
file lfs.h was added on branch comdex-fall-1999 on 1999-11-06 20:33:06 +0000

Revision 1.17: download - view: text, markup, annotated - select for diffs
Sat Nov 6 20:33:05 1999 UTC (25 years, 3 months ago) by perseant
Branches: MAIN
CVS tags: fvdl-softdep-base, comdex-fall-1999-base
Branch point for: comdex-fall-1999
Diff to: previous 1.16: preferred, colored
Changes since revision 1.16: +5 -6 lines
Address ufs_hashlock/ufs_ihashins protocol bug, discovered while doing a
post-mortem of a production machine.  Also, take the active dirop
count off of the fs and make it global (since it is measuring a global
resource) and tie the threshold value LFS_MAXDIROP to desiredvnodes.

Revision 1.14.4.2: download - view: text, markup, annotated - select for diffs
Tue Aug 31 21:03:45 1999 UTC (25 years, 5 months ago) by perseant
Branches: chs-ubc2
Diff to: previous 1.14.4.1: preferred, colored; branchpoint 1.14: preferred, colored; next MAIN 1.15: preferred, colored
Changes since revision 1.14.4.1: +4 -2 lines
Rudimentary support for LFS under UBC:

- LFS-specific VOP_BALLOC and VOP_PUTPAGES vnode ops.

- getblk VREG panic #ifdef'd out (can be reinstated when Ifile is
  internalized and Ifile can be made another type from VREG)

- interface to VOP_PUTPAGES changed to pass all pager flags, not
  just sync.  FS putpages routines must know about the pager flags.

- new LFS magic disk address, -2 ("unwritten"), meaning accounted for
  but not assigned to a fixed disk location (since LFS does these two
  things separately, and the previous accounting method using buffer
  headers no longer will work).  Changed references to (foo == (daddr_t)-1)
  to (foo < 0).  Since disk drivers reject all addresses < 0, this should
  not present a problem for other FSs.

Revision 1.14.2.1: download - view: text, markup, annotated - select for diffs
Fri Jun 25 20:49:37 1999 UTC (25 years, 7 months ago) by perry
Branches: netbsd-1-4
CVS tags: netbsd-1-4-PATCH001
Diff to: previous 1.14: preferred, colored
Changes since revision 1.14: +2 -1 lines
pullup 1.15->1.16 (perseant)

Revision 1.14.4.1: download - view: text, markup, annotated - select for diffs
Mon Jun 21 01:31:06 1999 UTC (25 years, 7 months ago) by thorpej
Branches: chs-ubc2
Diff to: previous 1.14: preferred, colored
Changes since revision 1.14: +3 -1 lines
Sync w/ -current.

Revision 1.16: download - view: text, markup, annotated - select for diffs
Tue Jun 15 22:25:41 1999 UTC (25 years, 8 months ago) by perseant
Branches: MAIN
CVS tags: chs-ubc2-base
Branch point for: wrstuden-devbsize, thorpej_scsipi, fvdl-softdep
Diff to: previous 1.15: preferred, colored
Changes since revision 1.15: +2 -1 lines
Minor changes to the segment live bytes calculation.  In particular, fixed
a bug in fragment extension that could run the count negative.  Also, don't
overcount for inodes, and don't count segment summaries.  Thus, for empty
segments the live bytes count should now be exactly zero.

Revision 1.15: download - view: text, markup, annotated - select for diffs
Tue Jun 1 03:00:40 1999 UTC (25 years, 8 months ago) by perseant
Branches: MAIN
Diff to: previous 1.14: preferred, colored
Changes since revision 1.14: +2 -1 lines
Fixed lfs_update (and related functions) so that calls from lfs_fsync
will DTRT with vnodes marked VDIROP.  In particular, the message
"flushing VDIROP" will no longer appear, and the filesystem will remain
stable in the event of a crash.

This was particularly a problem with NFS-exported LFSes, since fsync
was called on every file close.

Revision 1.14: download - view: text, markup, annotated - select for diffs
Thu Mar 25 21:39:18 1999 UTC (25 years, 10 months ago) by perseant
Branches: MAIN
CVS tags: netbsd-1-4-base, netbsd-1-4-RELEASE, kame_14_19990705, kame_14_19990628
Branch point for: netbsd-1-4, kame, chs-ubc2
Diff to: previous 1.13: preferred, colored
Changes since revision 1.13: +2 -13 lines
clean up unused/required #ifdefs

Revision 1.13: download - view: text, markup, annotated - select for diffs
Wed Mar 17 18:38:34 1999 UTC (25 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.12: preferred, colored
Changes since revision 1.12: +3 -3 lines
Move dlfs_pad to the end of struct dlfs (after the pad), for upward
compatibility.

Revision 1.12: download - view: text, markup, annotated - select for diffs
Wed Mar 17 16:49:00 1999 UTC (25 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.11: preferred, colored
Changes since revision 1.11: +1 -1 lines
Fix pad on lfs.h so it is really 512 bytes, as advertized

Revision 1.11: download - view: text, markup, annotated - select for diffs
Wed Mar 10 00:20:00 1999 UTC (25 years, 11 months ago) by perseant
Branches: MAIN
Diff to: previous 1.10: preferred, colored
Changes since revision 1.10: +126 -20 lines
New sources should leave the LFS in a more-or-less working state.  Changes
include:

	- DIROP segregation is enabled, and greater care is taken
	  to make sure that a checkpoint completes.  Fsck is not
	  needed to remount the filesystem.
	- Several checks to make sure that the LFS subsystem does not
	  overuse various resources (memory, in particular).
	- The cleaner routines, lfs_markv in particular, are completely
	  rewritten.  A buffer overflow is removed.  Greater care is taken
	  to ensure that inodes come from where lfs_cleanerd say they come
	  from (so we know nothing has changed since lfs_bmapv was called).
	- Fragment allocation is fixed, so that writes beyond end-of-file
	  do the right thing.

Revision 1.10: download - view: text, markup, annotated - select for diffs
Fri Sep 11 21:27:12 1998 UTC (26 years, 5 months ago) by pk
Branches: MAIN
CVS tags: kenh-if-detach-base, kenh-if-detach, chs-ubc-base, chs-ubc
Diff to: previous 1.9: preferred, colored
Changes since revision 1.9: +99 -52 lines
PR#6032: define fixed sized on-disk superblock structure.

Revision 1.9: download - view: text, markup, annotated - select for diffs
Sun Mar 1 02:23:23 1998 UTC (26 years, 11 months ago) by fvdl
Branches: MAIN
CVS tags: eeh-paddr_t-base, eeh-paddr_t
Diff to: previous 1.8: preferred, colored
Changes since revision 1.8: +52 -26 lines
Merge with Lite2 + local changes

Revision 1.1.1.2 (vendor branch): download - view: text, markup, annotated - select for diffs
Sun Mar 1 02:14:11 1998 UTC (26 years, 11 months ago) by fvdl
Branches: netbsd, CSRG
CVS tags: lite-2
Diff to: previous 1.1.1.1: preferred, colored
Changes since revision 1.1.1.1: +157 -125 lines
Import 4.4BSD-Lite2

Revision 1.1.1.1 (vendor branch): download - view: text, markup, annotated - select for diffs
Sun Mar 1 02:10:46 1998 UTC (26 years, 11 months ago) by fvdl
Branches: netbsd, CSRG
CVS tags: lite-1, date-03-may-96
Diff to: previous 1.1: preferred, colored
Changes since revision 1.1: +1 -4 lines
Import 4.4BSD-Lite for reference

Revision 1.8: download - view: text, markup, annotated - select for diffs
Thu Dec 5 19:01:46 1996 UTC (28 years, 2 months ago) by is
Branches: MAIN
CVS tags: thorpej-signal-base, thorpej-signal, thorpej-setroot, netbsd-1-3-base, netbsd-1-3-RELEASE, netbsd-1-3-PATCH003-CANDIDATE2, netbsd-1-3-PATCH003-CANDIDATE1, netbsd-1-3-PATCH003-CANDIDATE0, netbsd-1-3-PATCH003, netbsd-1-3-PATCH002, netbsd-1-3-PATCH001, netbsd-1-3-BETA, netbsd-1-3, mrg-vm-swap, marc-pcmcia-bp, marc-pcmcia-base, marc-pcmcia, is-newarp-before-merge, is-newarp-base, is-newarp, bouyer-scsipi
Diff to: previous 1.7: preferred, colored
Changes since revision 1.7: +8 -8 lines
Make the struct lfs 512 bytes long on 32bit machines whose compiler doesn't
align 32bit integers. Use explicit sized typing at some other places.

XXX This still won't fix lfs for 64bit machines, as we have some
assumptions about sizeof(pointer)=sizeof(u_int32_t) in here, and (if I
looked right) a misaligned u_int64_t. The right fix (to cite cgd) will
be to seperate on-disk-representation from in-core, but I don't have
the time (at the moment) to do this.

Revision 1.7: download - view: text, markup, annotated - select for diffs
Fri Feb 9 22:28:45 1996 UTC (29 years ago) by christos
Branches: MAIN
CVS tags: netbsd-1-2-base, netbsd-1-2-RELEASE, netbsd-1-2-PATCH001, netbsd-1-2-BETA, netbsd-1-2
Diff to: previous 1.6: preferred, colored
Changes since revision 1.6: +6 -6 lines
lfs prototypes

Revision 1.6: download - view: text, markup, annotated - select for diffs
Wed Dec 21 20:01:01 1994 UTC (30 years, 1 month ago) by mycroft
Branches: MAIN
CVS tags: netbsd-1-1-base, netbsd-1-1-RELEASE, netbsd-1-1-PATCH001, netbsd-1-1
Diff to: previous 1.5: preferred, colored
Changes since revision 1.5: +2 -0 lines
Add RCS ids where missing.

Revision 1.5: download - view: text, markup, annotated - select for diffs
Wed Dec 14 13:03:45 1994 UTC (30 years, 2 months ago) by mycroft
Branches: MAIN
Diff to: previous 1.4: preferred, colored
Changes since revision 1.4: +43 -41 lines
Sync with CSRG.

Revision 1.4: download - view: text, markup, annotated - select for diffs
Thu Nov 17 16:58:41 1994 UTC (30 years, 3 months ago) by mycroft
Branches: MAIN
Diff to: previous 1.3: preferred, colored
Changes since revision 1.3: +3 -1 lines
Round struct lfs to 512 bytes.

Revision 1.3: download - view: text, markup, annotated - select for diffs
Thu Oct 20 04:21:10 1994 UTC (30 years, 3 months ago) by cgd
Branches: MAIN
Diff to: previous 1.2: preferred, colored
Changes since revision 1.2: +102 -104 lines
update for new syscall args description mechanism, and deal safely
with wider types.

Revision 1.2: download - view: text, markup, annotated - select for diffs
Wed Jun 29 06:46:46 1994 UTC (30 years, 7 months ago) by cgd
Branches: MAIN
CVS tags: netbsd-1-0-base, netbsd-1-0-RELEASE, netbsd-1-0-PATCH1, netbsd-1-0-PATCH06, netbsd-1-0-PATCH05, netbsd-1-0-PATCH04, netbsd-1-0-PATCH03, netbsd-1-0-PATCH02, netbsd-1-0-PATCH0, netbsd-1-0
Diff to: previous 1.1: preferred, colored
Changes since revision 1.1: +3 -2 lines
New RCS ID's, take two.  they're more aesthecially pleasant, and use 'NetBSD'

Revision 1.1: download - view: text, markup, annotated - select for diffs
Wed Jun 8 11:42:23 1994 UTC (30 years, 8 months ago) by mycroft
Branches: MAIN
Update to 4.4-Lite fs code, with local changes.

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