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CVS log for src/sys/ufs/lfs/lfs_bio.c

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Request diff between arbitrary revisions


Default branch: MAIN


Revision 1.120.2.1 / (download) - annotate - [select for diffs], Tue Apr 17 00:08:56 2012 UTC (5 weeks, 4 days ago) by yamt
Branch: yamt-pagecache
Changes since 1.120: +35 -51 lines
Diff to previous 1.120 (colored) next main 1.121 (colored)

sync with head

Revision 1.121.2.1 / (download) - annotate - [select for diffs], Sat Mar 17 17:40:07 2012 UTC (2 months, 1 week ago) by bouyer
Branch: netbsd-6
Changes since 1.121: +18 -45 lines
Diff to previous 1.121 (colored) next main 1.122 (colored)

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 1.120.6.1 / (download) - annotate - [select for diffs], Sat Feb 18 07:35:54 2012 UTC (3 months ago) by mrg
Branch: jmcneill-usbmp
Changes since 1.120: +35 -51 lines
Diff to previous 1.120 (colored) next main 1.121 (colored)

merge to -current.

Revision 1.122 / (download) - annotate - [select for diffs], Thu Feb 16 02:47:55 2012 UTC (3 months, 1 week ago) by perseant
Branch: MAIN
CVS Tags: 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, HEAD
Changes since 1.121: +18 -45 lines
Diff to previous 1.121 (colored)

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 1.121 / (download) - annotate - [select for diffs], Mon Jan 2 22:10:44 2012 UTC (4 months, 3 weeks ago) by perseant
Branch: MAIN
CVS Tags: netbsd-6-base
Branch point for: netbsd-6
Changes since 1.120: +19 -8 lines
Diff to previous 1.120 (colored)


* 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 1.120 / (download) - annotate - [select for diffs], Mon Jul 11 08:27:40 2011 UTC (10 months, 2 weeks ago) by hannken
Branch: 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
Changes since 1.119: +3 -2 lines
Diff to previous 1.119 (colored)

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 1.118.6.1 / (download) - annotate - [select for diffs], Thu Jun 23 14:20:31 2011 UTC (11 months ago) by cherry
Branch: cherry-xenmp
Changes since 1.118: +8 -8 lines
Diff to previous 1.118 (colored) next main 1.119 (colored)

Catchup with rmind-uvmplock merge.

Revision 1.119 / (download) - annotate - [select for diffs], Sun Jun 12 03:36:01 2011 UTC (11 months, 2 weeks ago) by rmind
Branch: MAIN
Changes since 1.118: +8 -8 lines
Diff to previous 1.118 (colored)

Welcome to 5.99.53!  Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
  New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
  the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
  Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
  kernel-lock on some ports).  Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

Revision 1.116.2.2 / (download) - annotate - [select for diffs], Tue Aug 17 06:48:11 2010 UTC (21 months, 1 week ago) by uebayasi
Branch: uebayasi-xip
Changes since 1.116.2.1: +2 -2 lines
Diff to previous 1.116.2.1 (colored) to branchpoint 1.116 (colored) next main 1.117 (colored)

Sync with HEAD.

Revision 1.110.10.3 / (download) - annotate - [select for diffs], Wed Aug 11 22:55:13 2010 UTC (21 months, 2 weeks ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.110.10.2: +4 -4 lines
Diff to previous 1.110.10.2 (colored) to branchpoint 1.110 (colored) next main 1.111 (colored)

sync with head.

Revision 1.117.2.2 / (download) - annotate - [select for diffs], Sat Jul 3 01:20:05 2010 UTC (22 months, 3 weeks ago) by rmind
Branch: rmind-uvmplock
Changes since 1.117.2.1: +4 -4 lines
Diff to previous 1.117.2.1 (colored) to branchpoint 1.117 (colored) next main 1.118 (colored)

sync with head

Revision 1.118 / (download) - annotate - [select for diffs], Thu Jun 24 13:03:19 2010 UTC (23 months ago) by hannken
Branch: MAIN
CVS Tags: yamt-nfs-mp-base11, yamt-nfs-mp-base10, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, rmind-uvmplock-nbase, rmind-uvmplock-base, matt-mips64-premerge-20101231, jruoho-x86intr-base, jruoho-x86intr, cherry-xenmp-base, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2
Branch point for: cherry-xenmp
Changes since 1.117: +4 -4 lines
Diff to previous 1.117 (colored)

Clean up vnode lock operations pass 2:

VOP_UNLOCK(vp, flags) -> VOP_UNLOCK(vp): Remove the unneeded flags argument.

Welcome to 5.99.32.

Discussed on tech-kern.

Revision 1.116.2.1 / (download) - annotate - [select for diffs], Fri Apr 30 14:44:35 2010 UTC (2 years ago) by uebayasi
Branch: uebayasi-xip
Changes since 1.116: +21 -18 lines
Diff to previous 1.116 (colored)

Sync with HEAD.

Revision 1.117.2.1 / (download) - annotate - [select for diffs], Tue Mar 16 15:38:15 2010 UTC (2 years, 2 months ago) by rmind
Branch: rmind-uvmplock
Changes since 1.117: +8 -8 lines
Diff to previous 1.117 (colored)

Change struct uvm_object::vmobjlock to be dynamically allocated with
mutex_obj_alloc().  It allows us to share the locks among UVM objects.

Revision 1.110.10.2 / (download) - annotate - [select for diffs], Thu Mar 11 15:04:45 2010 UTC (2 years, 2 months ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.110.10.1: +25 -24 lines
Diff to previous 1.110.10.1 (colored) to branchpoint 1.110 (colored)

sync with head

Revision 1.117 / (download) - annotate - [select for diffs], Tue Feb 16 23:20:30 2010 UTC (2 years, 3 months ago) by mlelstv
Branch: MAIN
CVS Tags: yamt-nfs-mp-base9, uebayasi-xip-base1
Branch point for: rmind-uvmplock
Changes since 1.116: +21 -18 lines
Diff to previous 1.116 (colored)

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 1.116 / (download) - annotate - [select for diffs], Fri Jan 8 11:35:12 2010 UTC (2 years, 4 months ago) by pooka
Branch: MAIN
CVS Tags: uebayasi-xip-base
Branch point for: uebayasi-xip
Changes since 1.115: +6 -6 lines
Diff to previous 1.115 (colored)

The VATTR_NULL/VREF/VHOLD/HOLDRELE() macros lost their will to live
years ago when the kernel was modified to not alter ABI based on
DIAGNOSTIC, and now just call the respective function interfaces
(in lowercase).  Plenty of mix'n match upper/lowercase has creeped
into the tree since then.  Nuke the macros and convert all callsites
to lowercase.

no functional change

Revision 1.115 / (download) - annotate - [select for diffs], Mon Dec 7 04:12:10 2009 UTC (2 years, 5 months ago) by eeh
Branch: MAIN
CVS Tags: matt-premerge-20091211
Changes since 1.114: +6 -8 lines
Diff to previous 1.114 (colored)

Fix some more hangs and deadlocks.

Revision 1.110.6.1 / (download) - annotate - [select for diffs], Mon Jun 2 13:24:36 2008 UTC (3 years, 11 months ago) by mjf
Branch: mjf-devfs2
Changes since 1.110: +6 -17 lines
Diff to previous 1.110 (colored) next main 1.111 (colored)

Sync with HEAD.

Revision 1.110.8.1 / (download) - annotate - [select for diffs], Sun May 18 12:35:55 2008 UTC (4 years ago) by yamt
Branch: yamt-pf42
Changes since 1.110: +6 -17 lines
Diff to previous 1.110 (colored) next main 1.111 (colored)

sync with head.

Revision 1.110.10.1 / (download) - annotate - [select for diffs], Fri May 16 02:26:00 2008 UTC (4 years ago) by yamt
Branch: yamt-nfs-mp
Changes since 1.110: +6 -17 lines
Diff to previous 1.110 (colored)

sync with head.

Revision 1.114 / (download) - annotate - [select for diffs], Tue May 6 18:43:45 2008 UTC (4 years ago) by ad
Branch: MAIN
CVS Tags: yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-nfs-mp-base8, yamt-nfs-mp-base7, yamt-nfs-mp-base6, yamt-nfs-mp-base5, yamt-nfs-mp-base4, yamt-nfs-mp-base3, yamt-nfs-mp-base2, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, 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-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, 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, jymxensuspend-base, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, hpcarm-cleanup-nbase, haad-nbase2, haad-dm-base2, haad-dm-base1, haad-dm-base, haad-dm, ad-audiomp2-base, ad-audiomp2
Changes since 1.113: +4 -5 lines
Diff to previous 1.113 (colored)

PR kern/38141 lookup/vfs_busy acquire rwlock recursively

Simplify the mount locking. Remove all the crud to deal with recursion on
the mount lock, and crud to deal with unmount as another weirdo lock.

Hopefully this will once and for all fix the deadlocks with this. With this
commit there are two locks on each mount:

- krwlock_t mnt_unmounting. This is used to prevent unmount across critical
  sections like getnewvnode(). It's only ever read locked with rw_tryenter(),
  and is only ever write locked in dounmount(). A write hold can't be taken
  on this lock if the current LWP could hold a vnode lock.

- kmutex_t mnt_updating. This is taken by threads updating the mount, for
  example when going r/o -> r/w, and is only present to serialize updates.
  In order to take this lock, a read hold must first be taken on
  mnt_unmounting, and the two need to be held across the operation.

One effect of this change: previously if an unmount failed, we would make a
half hearted attempt to back out of it gracefully, but that was unlikely to
work in a lot of cases. Now while an unmount that will be aborted is in
progress, new file operations within the mount will fail instead of being
delayed. That is unlikely to be a problem though, because if the admin
requests unmount of a file system then s(he) has made a decision to deny
access to the resource.

Revision 1.113 / (download) - annotate - [select for diffs], Wed Apr 30 12:49:17 2008 UTC (4 years ago) by ad
Branch: MAIN
Changes since 1.112: +4 -5 lines
Diff to previous 1.112 (colored)

PR kern/38135 vfs_busy/vfs_trybusy confusion

The previous fix worked, but it opened a window where mounts could have
disappeared from mountlist while the caller was traversing it using
vfs_trybusy(). Fix that.

Revision 1.112 / (download) - annotate - [select for diffs], Tue Apr 29 23:51:05 2008 UTC (4 years ago) by ad
Branch: MAIN
Changes since 1.111: +4 -6 lines
Diff to previous 1.111 (colored)

kern/38135 vfs_busy/vfs_trybusy confusion

The symptom was that sometimes file systems would occasionally not appear
in output from 'df' or 'mount' if the system was busy. Resolution:

- Make mount locks work somewhat like vm_map locks.
- vfs_trybusy() now only fails if the mount is gone, or if someone is
  unmounting the file system. Simple contention on mnt_lock doesn't
  cause it to fail.
- vfs_busy() will wait even if the file system is being unmounted.

Revision 1.111 / (download) - annotate - [select for diffs], Mon Apr 28 20:24:11 2008 UTC (4 years ago) by martin
Branch: MAIN
Changes since 1.110: +2 -9 lines
Diff to previous 1.110 (colored)

Remove clause 3 and 4 from TNF licenses

Revision 1.103.6.3 / (download) - annotate - [select for diffs], Sun Mar 23 02:05:12 2008 UTC (4 years, 2 months ago) by matt
Branch: matt-armv6
Changes since 1.103.6.2: +12 -24 lines
Diff to previous 1.103.6.2 (colored) to branchpoint 1.103 (colored) next main 1.104 (colored)

sync with HEAD

Revision 1.86.2.7 / (download) - annotate - [select for diffs], Wed Feb 27 08:37:06 2008 UTC (4 years, 2 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.6: +6 -18 lines
Diff to previous 1.86.2.6 (colored) to branchpoint 1.86 (colored) next main 1.87 (colored)

sync with head.

Revision 1.110 / (download) - annotate - [select for diffs], Wed Feb 20 17:13:30 2008 UTC (4 years, 3 months ago) by matt
Branch: 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, 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
Changes since 1.109: +3 -15 lines
Diff to previous 1.109 (colored)

Merge all the *different* definitions of bufqueues into one common one.

Revision 1.106.4.1 / (download) - annotate - [select for diffs], Mon Feb 18 21:07:28 2008 UTC (4 years, 3 months ago) by mjf
Branch: mjf-devfs
Changes since 1.106: +104 -98 lines
Diff to previous 1.106 (colored) next main 1.107 (colored)

Sync with HEAD.

Revision 1.109 / (download) - annotate - [select for diffs], Fri Feb 15 13:30:56 2008 UTC (4 years, 3 months ago) by ad
Branch: MAIN
CVS Tags: mjf-devfs-base
Changes since 1.108: +5 -5 lines
Diff to previous 1.108 (colored)

The buffer LOCKED flag need not be under the protection of bufcache_lock,
BUSY is enough.

Revision 1.86.2.6 / (download) - annotate - [select for diffs], Mon Feb 4 09:25:04 2008 UTC (4 years, 3 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.5: +8 -8 lines
Diff to previous 1.86.2.5 (colored) to branchpoint 1.86 (colored)

sync with head.

Revision 1.108 / (download) - annotate - [select for diffs], Wed Jan 30 11:47:04 2008 UTC (4 years, 3 months ago) by ad
Branch: MAIN
Changes since 1.107: +8 -8 lines
Diff to previous 1.107 (colored)

PR kern/37706 (forced unmount of file systems is unsafe):

- Do reference counting for 'struct mount'. Each vnode associated with a
  mount takes a reference, and in turn the mount takes a reference to the
  vfsops.
- Now that mounts are reference counted, replace the overcomplicated mount
  locking inherited from 4.4BSD with a recursable rwlock.

Revision 1.86.2.5 / (download) - annotate - [select for diffs], Mon Jan 21 09:48:10 2008 UTC (4 years, 4 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.4: +99 -93 lines
Diff to previous 1.86.2.4 (colored) to branchpoint 1.86 (colored)

sync with head

Revision 1.103.6.2 / (download) - annotate - [select for diffs], Wed Jan 9 01:58:29 2008 UTC (4 years, 4 months ago) by matt
Branch: matt-armv6
Changes since 1.103.6.1: +99 -93 lines
Diff to previous 1.103.6.1 (colored) to branchpoint 1.103 (colored)

sync with HEAD

Revision 1.106.10.1 / (download) - annotate - [select for diffs], Wed Jan 2 21:58:23 2008 UTC (4 years, 4 months ago) by bouyer
Branch: bouyer-xeni386
CVS Tags: bouyer-xeni386-merge1
Changes since 1.106: +99 -93 lines
Diff to previous 1.106 (colored) next main 1.107 (colored)

Sync with HEAD

Revision 1.107 / (download) - annotate - [select for diffs], Wed Jan 2 11:49:10 2008 UTC (4 years, 4 months ago) by ad
Branch: MAIN
CVS Tags: matt-armv6-base, bouyer-xeni386-nbase, bouyer-xeni386-base
Changes since 1.106: +99 -93 lines
Diff to previous 1.106 (colored)

Merge vmlocking2 to head.

Revision 1.106.6.5 / (download) - annotate - [select for diffs], Wed Dec 19 21:27:14 2007 UTC (4 years, 5 months ago) by ad
Branch: vmlocking2
Changes since 1.106.6.4: +41 -51 lines
Diff to previous 1.106.6.4 (colored) to branchpoint 1.106 (colored) next main 1.107 (colored)

Use a global lfs_lock.

Revision 1.106.6.4 / (download) - annotate - [select for diffs], Wed Dec 19 19:16:44 2007 UTC (4 years, 5 months ago) by ad
Branch: vmlocking2
Changes since 1.106.6.3: +4 -5 lines
Diff to previous 1.106.6.3 (colored) to branchpoint 1.106 (colored)

Fix some more problems w/lfs on this branch.

Revision 1.106.6.3 / (download) - annotate - [select for diffs], Wed Dec 19 00:01:59 2007 UTC (4 years, 5 months ago) by ad
Branch: vmlocking2
Changes since 1.106.6.2: +10 -7 lines
Diff to previous 1.106.6.2 (colored) to branchpoint 1.106 (colored)

Get lfs mostly working.

Revision 1.106.6.2 / (download) - annotate - [select for diffs], Sat Dec 8 15:52:18 2007 UTC (4 years, 5 months ago) by ad
Branch: vmlocking2
Changes since 1.106.6.1: +7 -3 lines
Diff to previous 1.106.6.1 (colored) to branchpoint 1.106 (colored)

Minor locking fixes.

Revision 1.106.6.1 / (download) - annotate - [select for diffs], Tue Dec 4 13:03:49 2007 UTC (4 years, 5 months ago) by ad
Branch: vmlocking2
Changes since 1.106: +94 -84 lines
Diff to previous 1.106 (colored)

Pull the vmlocking changes into a new branch.

Revision 1.103.6.1 / (download) - annotate - [select for diffs], Tue Nov 6 23:35:17 2007 UTC (4 years, 6 months ago) by matt
Branch: matt-armv6
CVS Tags: matt-armv6-prevmlocking
Changes since 1.103: +9 -11 lines
Diff to previous 1.103 (colored)

sync with HEAD

Revision 1.86.2.4 / (download) - annotate - [select for diffs], Sat Oct 27 11:36:46 2007 UTC (4 years, 6 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.3: +9 -11 lines
Diff to previous 1.86.2.3 (colored) to branchpoint 1.86 (colored)

sync with head.

Revision 1.103.4.1 / (download) - annotate - [select for diffs], Fri Oct 26 15:49:33 2007 UTC (4 years, 7 months ago) by joerg
Branch: jmcneill-pm
Changes since 1.103: +9 -11 lines
Diff to previous 1.103 (colored) next main 1.104 (colored)

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 1.103.8.1 / (download) - annotate - [select for diffs], Sun Oct 14 11:49:18 2007 UTC (4 years, 7 months ago) by yamt
Branch: yamt-x86pmap
Changes since 1.103: +9 -11 lines
Diff to previous 1.103 (colored) next main 1.104 (colored)

sync with head.

Revision 1.106 / (download) - annotate - [select for diffs], Thu Oct 11 19:53:43 2007 UTC (4 years, 7 months ago) by ad
Branch: 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
Changes since 1.105: +2 -4 lines
Diff to previous 1.105 (colored)

Remove LOCK_ASSERT(!simple_lock_held(&foo));

Revision 1.105 / (download) - annotate - [select for diffs], Wed Oct 10 20:42:34 2007 UTC (4 years, 7 months ago) by ad
Branch: MAIN
Changes since 1.104: +7 -7 lines
Diff to previous 1.104 (colored)

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 1.104 / (download) - annotate - [select for diffs], Mon Oct 8 18:01:30 2007 UTC (4 years, 7 months ago) by ad
Branch: MAIN
Changes since 1.103: +4 -4 lines
Diff to previous 1.103 (colored)

Merge ffs locking & brelse changes from the vmlocking branch.

Revision 1.86.2.3 / (download) - annotate - [select for diffs], Mon Sep 3 14:46:53 2007 UTC (4 years, 8 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.2: +16 -8 lines
Diff to previous 1.86.2.2 (colored) to branchpoint 1.86 (colored)

sync with head.

Revision 1.98.16.1 / (download) - annotate - [select for diffs], Mon Sep 3 07:05:19 2007 UTC (4 years, 8 months ago) by wrstuden
Branch: wrstuden-fixsa
Changes since 1.98: +10 -4 lines
Diff to previous 1.98 (colored) next main 1.99 (colored)

Sync w/ NetBSD-4-RC_1

Revision 1.98.8.7 / (download) - annotate - [select for diffs], Fri Aug 24 23:28:46 2007 UTC (4 years, 9 months ago) by ad
Branch: vmlocking
Changes since 1.98.8.6: +29 -24 lines
Diff to previous 1.98.8.6 (colored) to branchpoint 1.98 (colored) next main 1.99 (colored)

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 1.98.8.6 / (download) - annotate - [select for diffs], Mon Aug 20 21:28:26 2007 UTC (4 years, 9 months ago) by ad
Branch: vmlocking
Changes since 1.98.8.5: +3 -3 lines
Diff to previous 1.98.8.5 (colored) to branchpoint 1.98 (colored)

Sync with HEAD.

Revision 1.98.8.5 / (download) - annotate - [select for diffs], Sun Aug 19 19:25:00 2007 UTC (4 years, 9 months ago) by ad
Branch: vmlocking
Changes since 1.98.8.4: +6 -4 lines
Diff to previous 1.98.8.4 (colored) to branchpoint 1.98 (colored)

- Back out the biodone() changes.
- Eliminate B_ERROR (from HEAD).

Revision 1.102.2.1 / (download) - annotate - [select for diffs], Wed Aug 15 13:51:11 2007 UTC (4 years, 9 months ago) by skrll
Branch: nick-csl-alignment
Changes since 1.102: +6 -4 lines
Diff to previous 1.102 (colored) next main 1.103 (colored)

Sync with HEAD.

Revision 1.103.10.2 / (download) - annotate - [select for diffs], Sun Jul 29 13:31:15 2007 UTC (4 years, 9 months ago) by ad
Branch: matt-mips64
Changes since 1.103.10.1: +875 -0 lines
Diff to previous 1.103.10.1 (colored) to branchpoint 1.103 (colored) next main 1.104 (colored)

It's not a good idea for device drivers to modify b_flags, as they don't
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.

Revision 1.103.10.1, Sun Jul 29 13:31:14 2007 UTC (4 years, 9 months ago) by ad
Branch: matt-mips64
Changes since 1.103: +0 -875 lines
FILE REMOVED

file lfs_bio.c was added on branch matt-mips64 on 2007-07-29 13:31:15 +0000

Revision 1.103 / (download) - annotate - [select for diffs], Sun Jul 29 13:31:14 2007 UTC (4 years, 9 months ago) by ad
Branch: MAIN
CVS Tags: yamt-x86pmap-base2, yamt-x86pmap-base, nick-csl-alignment-base5, matt-mips64-base, hpcarm-cleanup
Branch point for: yamt-x86pmap, matt-mips64, matt-armv6, jmcneill-pm
Changes since 1.102: +6 -4 lines
Diff to previous 1.102 (colored)

It's not a good idea for device drivers to modify b_flags, as they don't
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.

Revision 1.102 / (download) - annotate - [select for diffs], Tue Jul 17 21:20:43 2007 UTC (4 years, 10 months ago) by christos
Branch: MAIN
CVS Tags: nick-csl-alignment-base
Branch point for: nick-csl-alignment
Changes since 1.101: +4 -4 lines
Diff to previous 1.101 (colored)

eliminate MFSNAMELEN

Revision 1.98.10.1 / (download) - annotate - [select for diffs], Wed Jul 11 20:12:44 2007 UTC (4 years, 10 months ago) by mjf
Branch: mjf-ufs-trans
Changes since 1.98: +10 -4 lines
Diff to previous 1.98 (colored) next main 1.99 (colored)

Sync with head.

Revision 1.98.8.4 / (download) - annotate - [select for diffs], Sat Jun 23 18:06:06 2007 UTC (4 years, 11 months ago) by ad
Branch: vmlocking
Changes since 1.98.8.3: +16 -14 lines
Diff to previous 1.98.8.3 (colored) to branchpoint 1.98 (colored)

- Lock v_cleanblkhd, v_dirtyblkhd, v_numoutput with the vnode's interlock.
  Get rid of global_v_numoutput_lock. Partially incomplete as the buffer
  cache locking doesn't work very well and needs an overhaul.
- Some changes to try and make softdep MP safe. Untested.

Revision 1.98.8.3 / (download) - annotate - [select for diffs], Fri Jun 8 14:18:16 2007 UTC (4 years, 11 months ago) by ad
Branch: vmlocking
Changes since 1.98.8.2: +10 -4 lines
Diff to previous 1.98.8.2 (colored) to branchpoint 1.98 (colored)

Sync with head.

Revision 1.98.2.1 / (download) - annotate - [select for diffs], Tue Jun 5 20:34:59 2007 UTC (4 years, 11 months ago) by bouyer
Branch: netbsd-4
CVS Tags: wrstuden-fixsa-newbase, wrstuden-fixsa-base-1, wrstuden-fixsa-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, matt-nb4-arm-base, matt-nb4-arm
Changes since 1.98: +10 -4 lines
Diff to previous 1.98 (colored) next main 1.99 (colored)

Pull up following revision(s) (requested by perseant in ticket #703):
	sys/miscfs/genfs/genfs.h              1.21
	sys/miscfs/genfs/genfs_vnops.c        1.151
	sys/ufs/lfs/lfs.h                     1.119, 1.120
	sys/ufs/lfs/lfs_bio.c                 1.99-101
	sys/ufs/lfs/lfs_extern.h              1.89
	sys/ufs/lfs/lfs_inode.c               1.108, 1.109
	sys/ufs/lfs/lfs_segment.c             1.197, 1.199, 1.200
	sys/ufs/lfs/lfs_subr.c                1.69, 1.70
	sys/ufs/lfs/lfs_syscalls.c            1.119
	sys/ufs/lfs/lfs_vfsops.c              1.234, 1.235
	sys/ufs/lfs/lfs_vnops.c               1.195, 1.196, 1.200, 1.202-206

Reduce busy waiting in lfs_putpages(), and other LFS improvements.

Revision 1.98.4.2 / (download) - annotate - [select for diffs], Thu May 17 13:41:58 2007 UTC (5 years ago) by yamt
Branch: yamt-idlelwp
Changes since 1.98.4.1: +3 -3 lines
Diff to previous 1.98.4.1 (colored) to branchpoint 1.98 (colored) next main 1.99 (colored)

sync with head.

Revision 1.101 / (download) - annotate - [select for diffs], Wed May 16 19:11:37 2007 UTC (5 years ago) by perseant
Branch: MAIN
CVS Tags: yamt-idlelwp-base8, mjf-ufs-trans-base
Changes since 1.100: +3 -3 lines
Diff to previous 1.100 (colored)

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 1.98.8.2 / (download) - annotate - [select for diffs], Sun May 13 17:36:44 2007 UTC (5 years ago) by ad
Branch: vmlocking
Changes since 1.98.8.1: +4 -4 lines
Diff to previous 1.98.8.1 (colored) to branchpoint 1.98 (colored)

- 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 1.98.4.1 / (download) - annotate - [select for diffs], Mon May 7 10:56:16 2007 UTC (5 years ago) by yamt
Branch: yamt-idlelwp
Changes since 1.98: +10 -4 lines
Diff to previous 1.98 (colored)

sync with head.

Revision 1.100 / (download) - annotate - [select for diffs], Wed Apr 18 00:50:06 2007 UTC (5 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.99: +4 -4 lines
Diff to previous 1.99 (colored)

Add/change a couple of comments about locking restrictions.

Revision 1.99 / (download) - annotate - [select for diffs], Tue Apr 17 01:16:46 2007 UTC (5 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.98: +8 -2 lines
Diff to previous 1.98 (colored)

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 1.98.8.1 / (download) - annotate - [select for diffs], Tue Mar 13 17:51:22 2007 UTC (5 years, 2 months ago) by ad
Branch: vmlocking
Changes since 1.98: +61 -60 lines
Diff to previous 1.98 (colored)

Pull in the initial set of changes for the vmlocking branch.

Revision 1.86.2.2 / (download) - annotate - [select for diffs], Sat Dec 30 20:51:01 2006 UTC (5 years, 4 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86.2.1: +31 -12 lines
Diff to previous 1.86.2.1 (colored) to branchpoint 1.86 (colored)

sync with head.

Revision 1.95.2.2 / (download) - annotate - [select for diffs], Sun Dec 10 07:19:33 2006 UTC (5 years, 5 months ago) by yamt
Branch: yamt-splraiseipl
Changes since 1.95.2.1: +8 -8 lines
Diff to previous 1.95.2.1 (colored) to branchpoint 1.95 (colored) next main 1.96 (colored)

sync with head.

Revision 1.94.4.1 / (download) - annotate - [select for diffs], Sat Nov 18 21:39:49 2006 UTC (5 years, 6 months ago) by ad
Branch: newlock2
Changes since 1.94: +28 -7 lines
Diff to previous 1.94 (colored) next main 1.95 (colored)

Sync with head.

Revision 1.98 / (download) - annotate - [select for diffs], Thu Nov 16 01:33:53 2006 UTC (5 years, 6 months ago) by christos
Branch: MAIN
CVS Tags: yamt-splraiseipl-base5, yamt-splraiseipl-base4, yamt-splraiseipl-base3, thorpej-atomic-base, thorpej-atomic, reinoud-bufcleanup, post-newlock2-merge, newlock2-nbase, newlock2-base, netbsd-4-base, ad-audiomp-base, ad-audiomp
Branch point for: yamt-idlelwp, wrstuden-fixsa, vmlocking, netbsd-4, mjf-ufs-trans
Changes since 1.97: +8 -8 lines
Diff to previous 1.97 (colored)

__unused removal on arguments; approved by core.

Revision 1.95.2.1 / (download) - annotate - [select for diffs], Sun Oct 22 06:07:51 2006 UTC (5 years, 7 months ago) by yamt
Branch: yamt-splraiseipl
Changes since 1.95: +12 -9 lines
Diff to previous 1.95 (colored)

sync with head

Revision 1.97 / (download) - annotate - [select for diffs], Thu Oct 12 01:32:51 2006 UTC (5 years, 7 months ago) by christos
Branch: MAIN
CVS Tags: yamt-splraiseipl-base2
Changes since 1.96: +8 -7 lines
Diff to previous 1.96 (colored)

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

Revision 1.96 / (download) - annotate - [select for diffs], Wed Oct 4 15:53:24 2006 UTC (5 years, 7 months ago) by christos
Branch: MAIN
Changes since 1.95: +6 -4 lines
Diff to previous 1.95 (colored)

fix empty if

Revision 1.95 / (download) - annotate - [select for diffs], Fri Sep 15 15:51:12 2006 UTC (5 years, 8 months ago) by yamt
Branch: MAIN
CVS Tags: yamt-splraiseipl-base
Branch point for: yamt-splraiseipl
Changes since 1.94: +20 -2 lines
Diff to previous 1.94 (colored)

merge yamt-pdpolicy branch.
	- separate page replacement policy from the rest of kernel
	- implement an alternative replacement policy

Revision 1.89.2.1 / (download) - annotate - [select for diffs], Sat Sep 9 03:00:00 2006 UTC (5 years, 8 months ago) by rpaulo
Branch: rpaulo-netinet-merge-pcb
Changes since 1.89: +14 -12 lines
Diff to previous 1.89 (colored) next main 1.90 (colored)

sync with head

Revision 1.89.6.4 / (download) - annotate - [select for diffs], Fri Aug 11 15:47:36 2006 UTC (5 years, 9 months ago) by yamt
Branch: yamt-pdpolicy
Changes since 1.89.6.3: +5 -7 lines
Diff to previous 1.89.6.3 (colored) to branchpoint 1.89 (colored) next main 1.90 (colored)

sync with head

Revision 1.81.2.5 / (download) - annotate - [select for diffs], Thu Aug 10 12:16:46 2006 UTC (5 years, 9 months ago) by tron
Branch: 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
Changes since 1.81.2.4: +5 -7 lines
Diff to previous 1.81.2.4 (colored) to branchpoint 1.81 (colored) next main 1.82 (colored)

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 1.93.4.1 / (download) - annotate - [select for diffs], Thu Jul 13 17:50:13 2006 UTC (5 years, 10 months ago) by gdamore
Branch: gdamore-uart
Changes since 1.93: +5 -7 lines
Diff to previous 1.93 (colored) next main 1.94 (colored)

Merge from HEAD.

Revision 1.94 / (download) - annotate - [select for diffs], Thu Jun 29 19:28:21 2006 UTC (5 years, 10 months ago) by perseant
Branch: MAIN
CVS Tags: yamt-pdpolicy-base9, yamt-pdpolicy-base8, yamt-pdpolicy-base7, rpaulo-netinet-merge-pcb-base, abandoned-netbsd-4-base, abandoned-netbsd-4
Branch point for: newlock2
Changes since 1.93: +5 -7 lines
Diff to previous 1.93 (colored)

Don't wake up the cleaner if the filesystem is unwrappable, and fix the
compatibility fcntls.

Also includes one-line fixes for an MP locking bug and a zero-length FINFO
problem that manifested during testing.

Revision 1.86.2.1 / (download) - annotate - [select for diffs], Wed Jun 21 15:12:39 2006 UTC (5 years, 11 months ago) by yamt
Branch: yamt-lazymbuf
Changes since 1.86: +16 -15 lines
Diff to previous 1.86 (colored)

sync with head.

Revision 1.89.4.2 / (download) - annotate - [select for diffs], Thu Jun 1 22:39:43 2006 UTC (5 years, 11 months ago) by kardel
Branch: simonb-timecounters
CVS Tags: simonb-timcounters-final
Changes since 1.89.4.1: +9 -2 lines
Diff to previous 1.89.4.1 (colored) to branchpoint 1.89 (colored) next main 1.90 (colored)

Sync with head.

Revision 1.90.4.1 / (download) - annotate - [select for diffs], Wed May 24 15:50:48 2006 UTC (6 years ago) by tron
Branch: peter-altq
Changes since 1.90: +12 -3 lines
Diff to previous 1.90 (colored) next main 1.91 (colored)

Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.

Revision 1.89.6.3 / (download) - annotate - [select for diffs], Wed May 24 10:59:25 2006 UTC (6 years ago) by yamt
Branch: yamt-pdpolicy
Changes since 1.89.6.2: +12 -3 lines
Diff to previous 1.89.6.2 (colored) to branchpoint 1.89 (colored)

sync with head.

Revision 1.81.2.4 / (download) - annotate - [select for diffs], Sat May 20 22:42:50 2006 UTC (6 years ago) by riz
Branch: netbsd-3
Changes since 1.81.2.3: +8 -2 lines
Diff to previous 1.81.2.3 (colored) to branchpoint 1.81 (colored)

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 1.81.2.3 / (download) - annotate - [select for diffs], Sat May 20 22:19:33 2006 UTC (6 years ago) by riz
Branch: netbsd-3
Changes since 1.81.2.2: +5 -3 lines
Diff to previous 1.81.2.2 (colored) to branchpoint 1.81 (colored)

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 1.81.2.2 / (download) - annotate - [select for diffs], Sat May 20 21:50:26 2006 UTC (6 years ago) by riz
Branch: netbsd-3
Changes since 1.81.2.1: +3 -3 lines
Diff to previous 1.81.2.1 (colored) to branchpoint 1.81 (colored)

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 1.93 / (download) - annotate - [select for diffs], Sun May 14 21:32:45 2006 UTC (6 years ago) by elad
Branch: MAIN
CVS Tags: yamt-pdpolicy-base6, yamt-pdpolicy-base5, simonb-timecounters-base, gdamore-uart-base, chap-midi-nbase, chap-midi-base, chap-midi
Branch point for: gdamore-uart
Changes since 1.92: +3 -2 lines
Diff to previous 1.92 (colored)

integrate kauth.

Revision 1.90.2.3 / (download) - annotate - [select for diffs], Thu May 11 23:32:03 2006 UTC (6 years ago) by elad
Branch: elad-kernelauth
Changes since 1.90.2.2: +8 -2 lines
Diff to previous 1.90.2.2 (colored) to branchpoint 1.90 (colored) next main 1.91 (colored)

sync with head

Revision 1.90.2.2 / (download) - annotate - [select for diffs], Sat May 6 23:32:58 2006 UTC (6 years ago) by christos
Branch: elad-kernelauth
Changes since 1.90.2.1: +3 -2 lines
Diff to previous 1.90.2.1 (colored) to branchpoint 1.90 (colored)

- Move kauth_cred_t declaration to <sys/types.h>
- Cleanup struct ucred; forward declarations that are unused.
- Don't include <sys/kauth.h> in any header, but include it in the c files
  that need it.

Approved by core.

Revision 1.92 / (download) - annotate - [select for diffs], Thu May 4 04:22:55 2006 UTC (6 years ago) by perseant
Branch: MAIN
CVS Tags: elad-kernelauth-base
Changes since 1.91: +8 -2 lines
Diff to previous 1.91 (colored)

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 1.89.4.1 / (download) - annotate - [select for diffs], Sat Apr 22 11:40:25 2006 UTC (6 years, 1 month ago) by simonb
Branch: simonb-timecounters
Changes since 1.89: +5 -8 lines
Diff to previous 1.89 (colored)

Sync with head.

Revision 1.90.2.1 / (download) - annotate - [select for diffs], Wed Apr 19 03:54:09 2006 UTC (6 years, 1 month ago) by elad
Branch: elad-kernelauth
Changes since 1.90: +5 -3 lines
Diff to previous 1.90 (colored)

sync with head.

Revision 1.91 / (download) - annotate - [select for diffs], Thu Apr 13 23:46:28 2006 UTC (6 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.90: +5 -3 lines
Diff to previous 1.90 (colored)

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 1.89.6.2 / (download) - annotate - [select for diffs], Mon Mar 13 09:07:43 2006 UTC (6 years, 2 months ago) by yamt
Branch: yamt-pdpolicy
Changes since 1.89.6.1: +2 -7 lines
Diff to previous 1.89.6.1 (colored) to branchpoint 1.89 (colored)

sync with head.

Revision 1.90 / (download) - annotate - [select for diffs], Sun Mar 5 17:33:33 2006 UTC (6 years, 2 months ago) by christos
Branch: MAIN
CVS Tags: yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, peter-altq-base
Branch point for: peter-altq, elad-kernelauth
Changes since 1.89: +2 -7 lines
Diff to previous 1.89 (colored)

cleanup more SET/CLR/ISSET lossage

Revision 1.89.6.1 / (download) - annotate - [select for diffs], Sun Mar 5 12:51:09 2006 UTC (6 years, 2 months ago) by yamt
Branch: yamt-pdpolicy
Changes since 1.89: +18 -0 lines
Diff to previous 1.89 (colored)

separate page replacement policy from the rest of kernel.

Revision 1.87.2.1 / (download) - annotate - [select for diffs], Sun Jan 15 10:03:05 2006 UTC (6 years, 4 months ago) by yamt
Branch: yamt-uio_vmspace
Changes since 1.87: +6 -9 lines
Diff to previous 1.87 (colored) next main 1.88 (colored)

sync with head.

Revision 1.89 / (download) - annotate - [select for diffs], Fri Jan 6 09:21:44 2006 UTC (6 years, 4 months ago) by yamt
Branch: MAIN
CVS Tags: yamt-uio_vmspace-base5, yamt-pdpolicy-base
Branch point for: yamt-pdpolicy, simonb-timecounters, rpaulo-netinet-merge-pcb
Changes since 1.88: +2 -1 lines
Diff to previous 1.88 (colored)

initialize necessary members of struct buf.  PR/32462 from Reinoud Zandijk.

Revision 1.88 / (download) - annotate - [select for diffs], Wed Jan 4 10:13:06 2006 UTC (6 years, 4 months ago) by yamt
Branch: MAIN
Changes since 1.87: +4 -8 lines
Diff to previous 1.87 (colored)

- add simple functions to allocate/free a buffer for i/o.
- make bufpool static.

Revision 1.87 / (download) - annotate - [select for diffs], Sun Dec 11 12:25:26 2005 UTC (6 years, 5 months ago) by christos
Branch: MAIN
Branch point for: yamt-uio_vmspace
Changes since 1.86: +2 -2 lines
Diff to previous 1.86 (colored)

merge ktrace-lwp.

Revision 1.66.2.7 / (download) - annotate - [select for diffs], Thu Nov 10 14:12:32 2005 UTC (6 years, 6 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.6: +94 -42 lines
Diff to previous 1.66.2.6 (colored) next main 1.67 (colored)

Sync with HEAD. Here we go again...

Revision 1.86 / (download) - annotate - [select for diffs], Sun May 29 21:25:24 2005 UTC (6 years, 11 months ago) by christos
Branch: 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
Branch point for: yamt-lazymbuf
Changes since 1.85: +3 -3 lines
Diff to previous 1.85 (colored)

- sprinkle const
- avoid shadow variables.

Revision 1.77.6.1 / (download) - annotate - [select for diffs], Tue May 10 05:08:57 2005 UTC (7 years ago) by riz
Branch: 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
Changes since 1.77: +66 -28 lines
Diff to previous 1.77 (colored) next main 1.78 (colored)

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 1.81.2.1 / (download) - annotate - [select for diffs], Sat May 7 11:21:30 2005 UTC (7 years ago) by tron
Branch: 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
Changes since 1.81: +93 -41 lines
Diff to previous 1.81 (colored)

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 1.77.8.1 / (download) - annotate - [select for diffs], Fri Apr 29 11:29:39 2005 UTC (7 years ago) by kent
Branch: kent-audio2
Changes since 1.77: +197 -117 lines
Diff to previous 1.77 (colored) next main 1.78 (colored)

sync with -current

Revision 1.85 / (download) - annotate - [select for diffs], Sat Apr 23 19:47:51 2005 UTC (7 years, 1 month ago) by perseant
Branch: MAIN
CVS Tags: kent-audio2-base
Changes since 1.84: +11 -8 lines
Diff to previous 1.84 (colored)

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 1.84 / (download) - annotate - [select for diffs], Tue Apr 19 20:59:05 2005 UTC (7 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.83: +3 -7 lines
Diff to previous 1.83 (colored)

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 1.83 / (download) - annotate - [select for diffs], Wed Apr 6 04:30:46 2005 UTC (7 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.82: +19 -8 lines
Diff to previous 1.82 (colored)

Fix some locking issues that appeared with the simple_lock work.
Address a "pager_map" deadlock in lfs_putpages().

Revision 1.82 / (download) - annotate - [select for diffs], Fri Apr 1 21:59:46 2005 UTC (7 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.81: +69 -27 lines
Diff to previous 1.81 (colored)

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 1.66.2.6 / (download) - annotate - [select for diffs], Fri Apr 1 14:32:11 2005 UTC (7 years, 1 month ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.5: +11 -11 lines
Diff to previous 1.66.2.5 (colored)

Sync with HEAD.

Revision 1.77.10.1 / (download) - annotate - [select for diffs], Sat Mar 19 08:37:03 2005 UTC (7 years, 2 months ago) by yamt
Branch: yamt-km
Changes since 1.77: +122 -94 lines
Diff to previous 1.77 (colored) next main 1.78 (colored)

sync with head.  xen and whitespace.  xen part is not finished.

Revision 1.81 / (download) - annotate - [select for diffs], Wed Mar 9 22:12:15 2005 UTC (7 years, 2 months ago) by perseant
Branch: MAIN
CVS Tags: yamt-km-base4, yamt-km-base3, netbsd-3-base
Branch point for: netbsd-3
Changes since 1.80: +11 -11 lines
Diff to previous 1.80 (colored)

Be more careful about handling of flags to lfs_flush, to ensure that
the lfs_writing mutex is respected.

Revision 1.66.2.5 / (download) - annotate - [select for diffs], Tue Mar 8 13:53:12 2005 UTC (7 years, 2 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.4: +56 -66 lines
Diff to previous 1.66.2.4 (colored)

Sync with HEAD.

Revision 1.80 / (download) - annotate - [select for diffs], Tue Mar 8 00:18:19 2005 UTC (7 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.79: +56 -66 lines
Diff to previous 1.79 (colored)

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 1.66.2.4 / (download) - annotate - [select for diffs], Fri Mar 4 16:54:47 2005 UTC (7 years, 2 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.3: +85 -47 lines
Diff to previous 1.66.2.3 (colored)

Sync with HEAD.

Hi Perry!

Revision 1.79 / (download) - annotate - [select for diffs], Sat Feb 26 22:32:20 2005 UTC (7 years, 2 months ago) by perry
Branch: MAIN
Changes since 1.78: +21 -21 lines
Diff to previous 1.78 (colored)

nuke trailing whitespace

Revision 1.78 / (download) - annotate - [select for diffs], Sat Feb 26 05:40:42 2005 UTC (7 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.77: +66 -28 lines
Diff to previous 1.77 (colored)

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 1.66.2.3 / (download) - annotate - [select for diffs], Tue Sep 21 13:39:15 2004 UTC (7 years, 8 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.2: +2 -2 lines
Diff to previous 1.66.2.2 (colored)

Fix the sync with head I botched.

Revision 1.66.2.2 / (download) - annotate - [select for diffs], Sat Sep 18 14:56:59 2004 UTC (7 years, 8 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66.2.1: +0 -0 lines
Diff to previous 1.66.2.1 (colored)

Sync with HEAD.

Revision 1.66.2.1 / (download) - annotate - [select for diffs], Tue Aug 3 10:56:57 2004 UTC (7 years, 9 months ago) by skrll
Branch: ktrace-lwp
Changes since 1.66: +62 -57 lines
Diff to previous 1.66 (colored)

Sync with HEAD

Revision 1.77 / (download) - annotate - [select for diffs], Wed Jan 28 10:54:23 2004 UTC (8 years, 3 months ago) by yamt
Branch: MAIN
CVS Tags: yamt-km-base2, yamt-km-base, 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, matt-timespec, kent-audio1-beforemerge, kent-audio1-base, kent-audio1
Branch point for: yamt-km, netbsd-2, kent-audio2
Changes since 1.76: +7 -7 lines
Diff to previous 1.76 (colored)

use bufmem instead of bufpages to make lfs a little less broken.

Revision 1.76 / (download) - annotate - [select for diffs], Thu Dec 4 14:57:47 2003 UTC (8 years, 5 months ago) by yamt
Branch: MAIN
Changes since 1.75: +3 -3 lines
Diff to previous 1.75 (colored)

use b_private rather than b_saveaddr.
XXX LFS_USE_B_INVAL

Revision 1.75 / (download) - annotate - [select for diffs], Fri Oct 3 15:35:54 2003 UTC (8 years, 7 months ago) by yamt
Branch: MAIN
Changes since 1.74: +4 -2 lines
Diff to previous 1.74 (colored)

assertions.

Revision 1.74 / (download) - annotate - [select for diffs], Tue Sep 23 05:26:12 2003 UTC (8 years, 8 months ago) by yamt
Branch: MAIN
Changes since 1.73: +2 -3 lines
Diff to previous 1.73 (colored)

remove unnecessary externs of lfs_do_flush.

Revision 1.73 / (download) - annotate - [select for diffs], Sun Sep 7 11:53:58 2003 UTC (8 years, 8 months ago) by yamt
Branch: MAIN
Changes since 1.72: +9 -4 lines
Diff to previous 1.72 (colored)

- 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 1.72 / (download) - annotate - [select for diffs], Thu Aug 7 16:34:35 2003 UTC (8 years, 9 months ago) by agc
Branch: MAIN
Changes since 1.71: +3 -7 lines
Diff to previous 1.71 (colored)

Move UCB-licensed code from 4-clause to 3-clause licence.

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

Revision 1.71 / (download) - annotate - [select for diffs], Sat Jul 12 16:17:07 2003 UTC (8 years, 10 months ago) by yamt
Branch: MAIN
Changes since 1.70: +30 -21 lines
Diff to previous 1.70 (colored)

- protect global resource counts with lfs_subsys_lock.
- clean up scattered externs a little.

Revision 1.70 / (download) - annotate - [select for diffs], Wed Jul 2 14:07:16 2003 UTC (8 years, 10 months ago) by yamt
Branch: MAIN
Changes since 1.69: +6 -2 lines
Diff to previous 1.69 (colored)

a comment.

Revision 1.69 / (download) - annotate - [select for diffs], Wed Jul 2 13:43:02 2003 UTC (8 years, 10 months ago) by yamt
Branch: MAIN
Changes since 1.68: +9 -8 lines
Diff to previous 1.68 (colored)

use queue.h macros.

Revision 1.68 / (download) - annotate - [select for diffs], Wed Jul 2 13:41:38 2003 UTC (8 years, 10 months ago) by yamt
Branch: MAIN
Changes since 1.67: +3 -3 lines
Diff to previous 1.67 (colored)

use VFSTOUFS macro.

Revision 1.67 / (download) - annotate - [select for diffs], Wed Jul 2 13:40:52 2003 UTC (8 years, 10 months ago) by yamt
Branch: MAIN
Changes since 1.66: +6 -17 lines
Diff to previous 1.66 (colored)

- add a new functions, lfs_writer_enter/leave, and use them instead of
  duplicated code fragments.
- add an assertion.

Revision 1.66 / (download) - annotate - [select for diffs], Sun Apr 27 04:18:29 2003 UTC (9 years, 1 month ago) by perseant
Branch: MAIN
Branch point for: ktrace-lwp
Changes since 1.65: +2 -4 lines
Diff to previous 1.65 (colored)

Don't change update time on block write; lets e.g. "tar xp" work properly.

Revision 1.65 / (download) - annotate - [select for diffs], Wed Apr 2 10:39:40 2003 UTC (9 years, 1 month ago) by fvdl
Branch: MAIN
Changes since 1.64: +3 -3 lines
Diff to previous 1.64 (colored)

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 1.64 / (download) - annotate - [select for diffs], Sat Mar 15 06:58:50 2003 UTC (9 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.63: +24 -6 lines
Diff to previous 1.63 (colored)

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 1.63 / (download) - annotate - [select for diffs], Sun Mar 2 04:34:31 2003 UTC (9 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.62: +8 -2 lines
Diff to previous 1.62 (colored)

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 1.62 / (download) - annotate - [select for diffs], Tue Feb 25 20:35:40 2003 UTC (9 years, 3 months ago) by thorpej
Branch: MAIN
Changes since 1.61: +3 -4 lines
Diff to previous 1.61 (colored)

Add a new BUF_INIT() macro which initializes b_dep and b_interlock, and
use it.  This fixes a few places where either b_dep or b_interlock were
not properly initialized.

Revision 1.61 / (download) - annotate - [select for diffs], Thu Feb 20 04:27:23 2003 UTC (9 years, 3 months ago) by perseant
Branch: MAIN
Changes since 1.60: +11 -11 lines
Diff to previous 1.60 (colored)

Tabify, and fix some comment alignment problems.

Revision 1.60 / (download) - annotate - [select for diffs], Wed Feb 19 12:49:10 2003 UTC (9 years, 3 months ago) by yamt
Branch: MAIN
Changes since 1.59: +6 -2 lines
Diff to previous 1.59 (colored)

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 1.59 / (download) - annotate - [select for diffs], Wed Feb 19 12:01:17 2003 UTC (9 years, 3 months ago) by yamt
Branch: MAIN
Changes since 1.58: +3 -2 lines
Diff to previous 1.58 (colored)

init b_interlock.

Revision 1.58 / (download) - annotate - [select for diffs], Mon Feb 17 23:48:17 2003 UTC (9 years, 3 months ago) by perseant
Branch: MAIN
Changes since 1.57: +66 -62 lines
Diff to previous 1.57 (colored)

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 1.57 / (download) - annotate - [select for diffs], Wed Feb 5 21:38:45 2003 UTC (9 years, 3 months ago) by pk
Branch: MAIN
Changes since 1.56: +4 -3 lines
Diff to previous 1.56 (colored)

Make the buffer cache code MP-safe.

Revision 1.56 / (download) - annotate - [select for diffs], Fri Jan 24 21:55:26 2003 UTC (9 years, 4 months ago) by fvdl
Branch: MAIN
Changes since 1.55: +5 -5 lines
Diff to previous 1.55 (colored)

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 1.35.2.13 / (download) - annotate - [select for diffs], Fri Jan 3 17:10:45 2003 UTC (9 years, 4 months ago) by thorpej
Branch: nathanw_sa
CVS Tags: nathanw_sa_end
Changes since 1.35.2.12: +12 -8 lines
Diff to previous 1.35.2.12 (colored) to branchpoint 1.35 (colored) next main 1.36 (colored)

Sync with HEAD.

Revision 1.55 / (download) - annotate - [select for diffs], Mon Dec 30 05:34:17 2002 UTC (9 years, 4 months ago) by yamt
Branch: MAIN
CVS Tags: nathanw_sa_before_merge, nathanw_sa_base, fvdl_fs64_base
Changes since 1.54: +10 -5 lines
Diff to previous 1.54 (colored)

comment and assertions

Revision 1.54 / (download) - annotate - [select for diffs], Mon Dec 30 05:31:53 2002 UTC (9 years, 4 months ago) by yamt
Branch: MAIN
Changes since 1.53: +4 -5 lines
Diff to previous 1.53 (colored)

move check of lfs_unlockvp from lfs_reserveavail to lfs_reserve
because lfs_reservebuf needs same check as well.

Revision 1.35.2.12 / (download) - annotate - [select for diffs], Sun Dec 29 20:57:19 2002 UTC (9 years, 4 months ago) by thorpej
Branch: nathanw_sa
Changes since 1.35.2.11: +147 -25 lines
Diff to previous 1.35.2.11 (colored) to branchpoint 1.35 (colored)

Sync with HEAD.

Revision 1.53 / (download) - annotate - [select for diffs], Sun Dec 29 14:08:12 2002 UTC (9 years, 4 months ago) by yamt
Branch: MAIN
Changes since 1.52: +11 -11 lines
Diff to previous 1.52 (colored)

fix vref/vunref mismatch.

Revision 1.52 / (download) - annotate - [select for diffs], Sat Dec 28 14:39:08 2002 UTC (9 years, 4 months ago) by yamt
Branch: MAIN
Changes since 1.51: +37 -15 lines
Diff to previous 1.51 (colored)

- in lfs_reserve, vref vnodes that we're locking so that cleaner doesn't
  try to reclaim them.
  (workaround for deadlock noted in the comment in lfs_reserveavail)
- in lfs_rename, mark vnodes which are being moved as well as directry vnodes.

Revision 1.51 / (download) - annotate - [select for diffs], Thu Dec 26 13:37:18 2002 UTC (9 years, 5 months ago) by yamt
Branch: MAIN
Changes since 1.50: +112 -19 lines
Diff to previous 1.50 (colored)

- in lfs_reserve, reserve locked buffer count as well.
- don't wait for locking buf in lfs_bwrite_ext to avoid deadlocks.
- skip lfs_reserve when we're doing dirop.
  reserve more (for lfs_truncate) in set_dirop instead.

this mostly solves PR 18972. (and hopefully PR 19196)

Revision 1.50 / (download) - annotate - [select for diffs], Sun Dec 22 17:31:52 2002 UTC (9 years, 5 months ago) by yamt
Branch: MAIN
Changes since 1.49: +9 -2 lines
Diff to previous 1.49 (colored)

add a XXX comment. (description of possible deadlock)

Revision 1.35.2.11 / (download) - annotate - [select for diffs], Thu Dec 19 00:59:48 2002 UTC (9 years, 5 months ago) by thorpej
Branch: nathanw_sa
Changes since 1.35.2.10: +15 -4 lines
Diff to previous 1.35.2.10 (colored) to branchpoint 1.35 (colored)

Sync with HEAD.

Revision 1.49 / (download) - annotate - [select for diffs], Tue Dec 17 15:23:37 2002 UTC (9 years, 5 months ago) by yamt
Branch: MAIN
CVS Tags: gmcgarry_ucred_base, gmcgarry_ucred, gmcgarry_ctxsw_base, gmcgarry_ctxsw
Changes since 1.48: +10 -2 lines
Diff to previous 1.48 (colored)

#if 0 out vnode unlock/lock in lfs_reserve for now and add a comment about it.
deadlock is better than corruption (or panic), IMO.

Revision 1.48 / (download) - annotate - [select for diffs], Sat Dec 14 13:41:25 2002 UTC (9 years, 5 months ago) by yamt
Branch: MAIN
Changes since 1.47: +7 -4 lines
Diff to previous 1.47 (colored)

- in lfs_bwrite_ext, if we're cleaner,
  mark inode IN_CLEANING rather then IN_MODIFIED.
  otherwise cleaned (indirect) blocks belongs to the inode isn't written
  until next sync.
- add assertions.

Revision 1.35.2.10 / (download) - annotate - [select for diffs], Wed Dec 11 06:51:44 2002 UTC (9 years, 5 months ago) by thorpej
Branch: nathanw_sa
Changes since 1.35.2.9: +12 -1 lines
Diff to previous 1.35.2.9 (colored) to branchpoint 1.35 (colored)

Sync with HEAD.

Revision 1.47 / (download) - annotate - [select for diffs], Wed Nov 27 11:36:40 2002 UTC (9 years, 6 months ago) by yamt
Branch: MAIN
Changes since 1.46: +11 -6 lines
Diff to previous 1.46 (colored)

more XXX comment.

Revision 1.46 / (download) - annotate - [select for diffs], Sun Nov 24 16:09:50 2002 UTC (9 years, 6 months ago) by yamt
Branch: MAIN
Changes since 1.45: +7 -2 lines
Diff to previous 1.45 (colored)

add a XXX comment to lfs_reserve.
 * it isn't safe to unlock vp here
 * because we're passing data using inode from namei.
 * (eg. i_offset)

Revision 1.45 / (download) - annotate - [select for diffs], Sun Nov 24 08:32:22 2002 UTC (9 years, 6 months ago) by yamt
Branch: MAIN
Changes since 1.44: +4 -3 lines
Diff to previous 1.44 (colored)

lfs_reserve shouldn't block for lfs_unlockvp.
otherwise cleaner deadlocks.
PR 19134.

Revision 1.35.6.5 / (download) - annotate - [select for diffs], Fri Sep 6 08:50:15 2002 UTC (9 years, 8 months ago) by jdolecek
Branch: kqueue
Changes since 1.35.6.4: +17 -15 lines
Diff to previous 1.35.6.4 (colored) to branchpoint 1.35 (colored) next main 1.36 (colored)

sync kqueue branch with HEAD

Revision 1.35.2.9 / (download) - annotate - [select for diffs], Thu Aug 1 02:47:04 2002 UTC (9 years, 9 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.8: +17 -15 lines
Diff to previous 1.35.2.8 (colored) to branchpoint 1.35 (colored)

Catch up to -current.

Revision 1.35.2.8 / (download) - annotate - [select for diffs], Mon Jul 15 20:53:09 2002 UTC (9 years, 10 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.7: +3 -4 lines
Diff to previous 1.35.2.7 (colored) to branchpoint 1.35 (colored)

Whitespace.

Revision 1.43.2.1 / (download) - annotate - [select for diffs], Mon Jul 15 10:37:25 2002 UTC (9 years, 10 months ago) by gehenna
Branch: gehenna-devsw
Changes since 1.43: +17 -15 lines
Diff to previous 1.43 (colored) next main 1.44 (colored)

catch up with -current.

Revision 1.35.2.7 / (download) - annotate - [select for diffs], Mon Jun 24 22:12:32 2002 UTC (9 years, 11 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.6: +3 -3 lines
Diff to previous 1.35.2.6 (colored) to branchpoint 1.35 (colored)

Curproc->curlwp renaming.

Change uses of "curproc->l_proc" back to "curproc", which is more like the
original use. Bare uses of "curproc" are now "curlwp".

"curproc" is now #defined in proc.h as ((curlwp) ? (curlwp)->l_proc) : NULL)
so that it is always safe to reference curproc (*de*referencing curproc
is another story, but that's always been true).

Revision 1.35.6.4 / (download) - annotate - [select for diffs], Sun Jun 23 17:52:10 2002 UTC (9 years, 11 months ago) by jdolecek
Branch: kqueue
Changes since 1.35.6.3: +12 -20 lines
Diff to previous 1.35.6.3 (colored) to branchpoint 1.35 (colored)

catch up with -current on kqueue branch

Revision 1.44 / (download) - annotate - [select for diffs], Thu Jun 20 22:10:24 2002 UTC (9 years, 11 months ago) by perseant
Branch: MAIN
CVS Tags: kqueue-beforemerge, kqueue-base, kqueue-aftermerge, gehenna-devsw-base
Changes since 1.43: +17 -15 lines
Diff to previous 1.43 (colored)

Fix miscalculation in lfs_fits found by Trevin Beattie <trevin@xmission.com>.
Change some of the variable names from "nb", "db" to "fsb" to reflect their
calling conventions.

Revision 1.35.2.6 / (download) - annotate - [select for diffs], Thu Jun 20 03:50:28 2002 UTC (9 years, 11 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.5: +12 -20 lines
Diff to previous 1.35.2.5 (colored) to branchpoint 1.35 (colored)

Catch up to -current.

Revision 1.43 / (download) - annotate - [select for diffs], Tue May 14 20:03:53 2002 UTC (10 years ago) by perseant
Branch: MAIN
CVS Tags: netbsd-1-6-base, 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, netbsd-1-6
Branch point for: gehenna-devsw
Changes since 1.42: +12 -19 lines
Diff to previous 1.42 (colored)

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 1.42 / (download) - annotate - [select for diffs], Sun May 12 23:06:29 2002 UTC (10 years ago) by matt
Branch: MAIN
Changes since 1.41: +2 -3 lines
Diff to previous 1.41 (colored)

Eliminate commons.

Revision 1.35.6.3 / (download) - annotate - [select for diffs], Sat Mar 16 16:02:25 2002 UTC (10 years, 2 months ago) by jdolecek
Branch: kqueue
Changes since 1.35.6.2: +13 -10 lines
Diff to previous 1.35.6.2 (colored) to branchpoint 1.35 (colored)

Catch up with -current.

Revision 1.35.2.5 / (download) - annotate - [select for diffs], Thu Feb 28 04:15:28 2002 UTC (10 years, 2 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.4: +13 -10 lines
Diff to previous 1.35.2.4 (colored) to branchpoint 1.35 (colored)

Catch up to -current.

Revision 1.41 / (download) - annotate - [select for diffs], Mon Feb 11 02:47:29 2002 UTC (10 years, 3 months ago) by perseant
Branch: MAIN
CVS Tags: newlock-base, newlock, ifpoll-base, ifpoll, eeh-devprop-base, eeh-devprop
Changes since 1.40: +13 -10 lines
Diff to previous 1.40 (colored)

Include the space taken by inodes in the count made by lfs_check();
make VOP_SETATTR call lfs_check.  This prevents large numbers of inode
changes (say, at the end of tar(1)) from filling the buffer cache.

Revision 1.35.6.2 / (download) - annotate - [select for diffs], Thu Jan 10 20:05:10 2002 UTC (10 years, 4 months ago) by thorpej
Branch: kqueue
Changes since 1.35.6.1: +21 -22 lines
Diff to previous 1.35.6.1 (colored) to branchpoint 1.35 (colored)

Sync kqueue branch with -current.

Revision 1.35.2.4 / (download) - annotate - [select for diffs], Tue Jan 8 00:34:51 2002 UTC (10 years, 4 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.3: +19 -19 lines
Diff to previous 1.35.2.3 (colored) to branchpoint 1.35 (colored)

Catch up to -current.

Revision 1.40 / (download) - annotate - [select for diffs], Fri Nov 23 21:44:26 2001 UTC (10 years, 6 months ago) by chs
Branch: MAIN
Changes since 1.39: +19 -19 lines
Diff to previous 1.39 (colored)

add spaces for KNF.  confirmed to produce identical objects.

Revision 1.35.2.3 / (download) - annotate - [select for diffs], Wed Nov 14 19:18:58 2001 UTC (10 years, 6 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.2: +4 -5 lines
Diff to previous 1.35.2.2 (colored) to branchpoint 1.35 (colored)

Catch up to -current.

Revision 1.36.4.1 / (download) - annotate - [select for diffs], Mon Nov 12 21:19:47 2001 UTC (10 years, 6 months ago) by thorpej
Branch: thorpej-mips-cache
Changes since 1.36: +4 -5 lines
Diff to previous 1.36 (colored) next main 1.37 (colored)

Sync the thorpej-mips-cache branch with -current.

Revision 1.39 / (download) - annotate - [select for diffs], Thu Nov 8 02:39:10 2001 UTC (10 years, 6 months ago) by lukem
Branch: MAIN
CVS Tags: thorpej-mips-cache-base
Changes since 1.38: +4 -1 lines
Diff to previous 1.38 (colored)

add RCSID

Revision 1.38 / (download) - annotate - [select for diffs], Tue Nov 6 07:11:29 2001 UTC (10 years, 6 months ago) by simonb
Branch: MAIN
Changes since 1.37: +1 -4 lines
Diff to previous 1.37 (colored)

Remove some variables that are set but never used.

Revision 1.37 / (download) - annotate - [select for diffs], Fri Oct 26 05:56:09 2001 UTC (10 years, 7 months ago) by lukem
Branch: MAIN
Changes since 1.36: +1 -2 lines
Diff to previous 1.36 (colored)

remove #include <ufs/ufs/quota.h> where it was just to appease
<ufs/ufs/inode.h>, since the latter now includes the former.  leave the former
in source that obviously uses specific bits of it (for completeness.)

Revision 1.35.2.2 / (download) - annotate - [select for diffs], Fri Aug 24 00:13:24 2001 UTC (10 years, 9 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35.2.1: +27 -54 lines
Diff to previous 1.35.2.1 (colored) to branchpoint 1.35 (colored)

Catch up with -current.

Revision 1.35.6.1 / (download) - annotate - [select for diffs], Fri Aug 3 04:14:08 2001 UTC (10 years, 9 months ago) by lukem
Branch: kqueue
Changes since 1.35: +27 -54 lines
Diff to previous 1.35 (colored)

update to -current

Revision 1.36 / (download) - annotate - [select for diffs], Fri Jul 13 20:30:23 2001 UTC (10 years, 10 months ago) by perseant
Branch: MAIN
CVS Tags: thorpej-devvp-base3, thorpej-devvp-base2, thorpej-devvp-base, thorpej-devvp, pre-chs-ubcperf, post-chs-ubcperf
Branch point for: thorpej-mips-cache
Changes since 1.35: +27 -54 lines
Diff to previous 1.35 (colored)

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 1.35.4.4 / (download) - annotate - [select for diffs], Fri Jul 13 04:51:24 2001 UTC (10 years, 10 months ago) by perseant
Branch: perseant-lfsv2
Changes since 1.35.4.3: +4 -2 lines
Diff to previous 1.35.4.3 (colored) to branchpoint 1.35 (colored) next main 1.36 (colored)

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 1.35.4.3 / (download) - annotate - [select for diffs], Mon Jul 2 17:48:18 2001 UTC (10 years, 10 months ago) by perseant
Branch: perseant-lfsv2
Changes since 1.35.4.2: +11 -11 lines
Diff to previous 1.35.4.2 (colored) to branchpoint 1.35 (colored)

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 1.35.4.2 / (download) - annotate - [select for diffs], Fri Jun 29 03:56:40 2001 UTC (10 years, 10 months ago) by perseant
Branch: perseant-lfsv2
Changes since 1.35.4.1: +13 -44 lines
Diff to previous 1.35.4.1 (colored) to branchpoint 1.35 (colored)

Get rid of __P(), protoizing where it had not already been done

Revision 1.35.4.1 / (download) - annotate - [select for diffs], Wed Jun 27 03:49:39 2001 UTC (10 years, 11 months ago) by perseant
Branch: perseant-lfsv2
Changes since 1.35: +9 -7 lines
Diff to previous 1.35 (colored)

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 1.35.2.1 / (download) - annotate - [select for diffs], Mon Mar 5 22:50:07 2001 UTC (11 years, 2 months ago) by nathanw
Branch: nathanw_sa
Changes since 1.35: +3 -2 lines
Diff to previous 1.35 (colored)

Initial commit of scheduler activations and lightweight process support.

Revision 1.23.2.2 / (download) - annotate - [select for diffs], Sat Feb 3 21:51:27 2001 UTC (11 years, 3 months ago) by he
Branch: netbsd-1-5
CVS Tags: netbsd-1-5-PATCH003, netbsd-1-5-PATCH002, netbsd-1-5-PATCH001
Changes since 1.23.2.1: +50 -51 lines
Diff to previous 1.23.2.1 (colored) to branchpoint 1.23 (colored) next main 1.24 (colored)

Pull up revisions 1.31-1.32 (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 1.11.2.3 / (download) - annotate - [select for diffs], Fri Dec 8 09:20:13 2000 UTC (11 years, 5 months ago) by bouyer
Branch: thorpej_scsipi
Changes since 1.11.2.2: +35 -10 lines
Diff to previous 1.11.2.2 (colored) to branchpoint 1.11 (colored) next main 1.12 (colored)

Sync with HEAD.

Revision 1.35 / (download) - annotate - [select for diffs], Sun Dec 3 06:43:36 2000 UTC (11 years, 5 months ago) by perseant
Branch: MAIN
CVS Tags: thorpej_scsipi_nbase, thorpej_scsipi_beforemerge, thorpej_scsipi_base, perseant-lfsv2-base
Branch point for: perseant-lfsv2, nathanw_sa, kqueue
Changes since 1.34: +2 -2 lines
Diff to previous 1.34 (colored)

Fix typo in 'malloc' for non-MALLOCLOG case

Revision 1.34 / (download) - annotate - [select for diffs], Sun Dec 3 05:56:27 2000 UTC (11 years, 5 months ago) by perseant
Branch: MAIN
Changes since 1.33: +27 -5 lines
Diff to previous 1.33 (colored)

Get rid of some old unnecessary code that cleared B_NEEDCOMMIT from buffers in
lfs_writeseg (possibly after they had been freed).

If MALLOCLOG is defined, make lfs_newbuf and lfs_freebuf pass along the
caller's file and line to _malloc and _free.

Revision 1.33 / (download) - annotate - [select for diffs], Mon Nov 27 03:33:57 2000 UTC (11 years, 6 months ago) by perseant
Branch: MAIN
Changes since 1.32: +10 -7 lines
Diff to previous 1.32 (colored)

If LFS_DO_ROLLFORWARD is defined, roll forward from the older checkpoint
on mount, through the newer checkpoint and on through any newer
partial-segments that may have been written but not checkpointed because
of an intervening crash.

LFS_DO_ROLLFORWARD is not defined by default.

Revision 1.11.2.2 / (download) - annotate - [select for diffs], Wed Nov 22 16:06:49 2000 UTC (11 years, 6 months ago) by bouyer
Branch: thorpej_scsipi
Changes since 1.11.2.1: +50 -51 lines
Diff to previous 1.11.2.1 (colored) to branchpoint 1.11 (colored)

Sync with HEAD.

Revision 1.11.2.1 / (download) - annotate - [select for diffs], Mon Nov 20 18:11:49 2000 UTC (11 years, 6 months ago) by bouyer
Branch: thorpej_scsipi
Changes since 1.11: +197 -88 lines
Diff to previous 1.11 (colored)

Update thorpej_scsipi to -current as of a month ago

Revision 1.32 / (download) - annotate - [select for diffs], Fri Nov 17 19:14:41 2000 UTC (11 years, 6 months ago) by perseant
Branch: MAIN
Changes since 1.31: +49 -46 lines
Diff to previous 1.31 (colored)

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 1.31 / (download) - annotate - [select for diffs], Sun Nov 12 07:58:36 2000 UTC (11 years, 6 months ago) by perseant
Branch: MAIN
Changes since 1.30: +3 -7 lines
Diff to previous 1.30 (colored)

Do not needlessly dirty segment table blocks during lfs_segwrite,
preventing needless disk activity when the filesystem is idle.  (PR #10979.)

Revision 1.23.2.1 / (download) - annotate - [select for diffs], Thu Sep 14 18:50:17 2000 UTC (11 years, 8 months ago) by perseant
Branch: netbsd-1-5
CVS Tags: netbsd-1-5-RELEASE, netbsd-1-5-BETA2, netbsd-1-5-BETA
Changes since 1.23: +119 -54 lines
Diff to previous 1.23 (colored)

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 1.30 / (download) - annotate - [select for diffs], Wed Sep 13 00:07:56 2000 UTC (11 years, 8 months ago) by perseant
Branch: MAIN
Changes since 1.29: +7 -4 lines
Diff to previous 1.29 (colored)

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 1.29 / (download) - annotate - [select for diffs], Tue Sep 12 03:22:53 2000 UTC (11 years, 8 months ago) by perseant
Branch: MAIN
Changes since 1.28: +3 -3 lines
Diff to previous 1.28 (colored)

Make this file compile on the alpha as well (use %ld and cast to long,
instead of %qd with no cast).

Revision 1.28 / (download) - annotate - [select for diffs], Sun Sep 10 00:20:45 2000 UTC (11 years, 8 months ago) by augustss
Branch: MAIN
Changes since 1.27: +2 -2 lines
Diff to previous 1.27 (colored)

Make this file compile again.

Revision 1.27 / (download) - annotate - [select for diffs], Sat Sep 9 04:49:54 2000 UTC (11 years, 8 months ago) by perseant
Branch: MAIN
Changes since 1.26: +82 -30 lines
Diff to previous 1.26 (colored)

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 1.26 / (download) - annotate - [select for diffs], Wed Jul 5 22:25:43 2000 UTC (11 years, 10 months ago) by perseant
Branch: MAIN
Changes since 1.25: +27 -12 lines
Diff to previous 1.25 (colored)

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 1.25 / (download) - annotate - [select for diffs], Mon Jul 3 01:45:49 2000 UTC (11 years, 10 months ago) by perseant
Branch: MAIN
Changes since 1.24: +5 -6 lines
Diff to previous 1.24 (colored)

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 1.24 / (download) - annotate - [select for diffs], Tue Jun 27 20:57:13 2000 UTC (11 years, 11 months ago) by perseant
Branch: MAIN
Changes since 1.23: +11 -15 lines
Diff to previous 1.23 (colored)

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 1.20.2.1 / (download) - annotate - [select for diffs], Thu Jun 22 17:10:36 2000 UTC (11 years, 11 months ago) by minoura
Branch: minoura-xpg4dl
Changes since 1.20: +8 -5 lines
Diff to previous 1.20 (colored) next main 1.21 (colored)

Sync w/ netbsd-1-5-base.

Revision 1.23 / (download) - annotate - [select for diffs], Tue Jun 6 20:19:15 2000 UTC (11 years, 11 months ago) by perseant
Branch: MAIN
CVS Tags: netbsd-1-5-base, netbsd-1-5-ALPHA2
Branch point for: netbsd-1-5
Changes since 1.22: +7 -4 lines
Diff to previous 1.22 (colored)

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 1.22 / (download) - annotate - [select for diffs], Wed May 31 03:37:34 2000 UTC (11 years, 11 months ago) by fredb
Branch: MAIN
Changes since 1.21: +2 -2 lines
Diff to previous 1.21 (colored)

Make this build. (Balance parenthesis.

Revision 1.21 / (download) - annotate - [select for diffs], Wed May 31 01:40:02 2000 UTC (11 years, 11 months ago) by perseant
Branch: MAIN
Changes since 1.20: +2 -2 lines
Diff to previous 1.20 (colored)

update for IN_ACCESSED changes

Revision 1.20 / (download) - annotate - [select for diffs], Sat May 27 00:19:52 2000 UTC (12 years ago) by perseant
Branch: MAIN
CVS Tags: minoura-xpg4dl-base
Branch point for: minoura-xpg4dl
Changes since 1.19: +27 -12 lines
Diff to previous 1.19 (colored)

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 1.19 / (download) - annotate - [select for diffs], Fri May 19 04:34:44 2000 UTC (12 years ago) by thorpej
Branch: MAIN
Changes since 1.18: +3 -2 lines
Diff to previous 1.18 (colored)

NULL != 0

Revision 1.18 / (download) - annotate - [select for diffs], Fri May 5 20:59:21 2000 UTC (12 years ago) by perseant
Branch: MAIN
Changes since 1.17: +14 -1 lines
Diff to previous 1.17 (colored)

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 1.17 / (download) - annotate - [select for diffs], Thu Mar 30 12:41:13 2000 UTC (12 years, 1 month ago) by augustss
Branch: MAIN
Changes since 1.16: +6 -6 lines
Diff to previous 1.16 (colored)

Remove register declarations.

Revision 1.11.6.2 / (download) - annotate - [select for diffs], Mon Dec 27 18:36:39 1999 UTC (12 years, 5 months ago) by wrstuden
Branch: wrstuden-devbsize
Changes since 1.11.6.1: +32 -20 lines
Diff to previous 1.11.6.1 (colored) to branchpoint 1.11 (colored) next main 1.12 (colored)

Pull up to last week's -current.

Revision 1.11.6.1 / (download) - annotate - [select for diffs], Tue Dec 21 23:20:09 1999 UTC (12 years, 5 months ago) by wrstuden
Branch: wrstuden-devbsize
Changes since 1.11: +5 -4 lines
Diff to previous 1.11 (colored)

Initial commit of recent changes to make DEV_BSIZE go away.

Runs on i386, needs work on other arch's. Main kernel routines should be
fine, but a number of the stand programs need help.

cd, fd, ccd, wd, and sd have been updated. sd has been tested with non-512
byte block devices. vnd, raidframe, and lfs need work.

Non 2**n block support is automatic for LKM's and conditional for kernels
on "options NON_PO2_BLOCKS".

Revision 1.9.2.4 / (download) - annotate - [select for diffs], Fri Dec 17 23:54:11 1999 UTC (12 years, 5 months ago) by he
Branch: netbsd-1-4
CVS Tags: netbsd-1-4-PATCH003, netbsd-1-4-PATCH002
Changes since 1.9.2.3: +3 -2 lines
Diff to previous 1.9.2.3 (colored) to branchpoint 1.9 (colored) next main 1.10 (colored)

Pull up revision 1.13 (requested by perseant):
  Address locking protocol error for inode hash, and make the
  maximum number of active dirops a global quantity.

Revision 1.9.2.3 / (download) - annotate - [select for diffs], Fri Dec 17 23:21:03 1999 UTC (12 years, 5 months ago) by he
Branch: netbsd-1-4
Changes since 1.9.2.2: +37 -29 lines
Diff to previous 1.9.2.2 (colored) to branchpoint 1.9 (colored)

Pull up revision 1.11 (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 1.16 / (download) - annotate - [select for diffs], Wed Dec 15 07:10:34 1999 UTC (12 years, 5 months ago) by perseant
Branch: MAIN
CVS Tags: wrstuden-devbsize-base, wrstuden-devbsize-19991221, chs-ubc2-newbase
Changes since 1.15: +27 -14 lines
Diff to previous 1.15 (colored)

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 1.15 / (download) - annotate - [select for diffs], Sat Dec 4 12:18:21 1999 UTC (12 years, 5 months ago) by ragge
Branch: MAIN
Changes since 1.14: +3 -3 lines
Diff to previous 1.14 (colored)

CL* discarding.

Revision 1.14 / (download) - annotate - [select for diffs], Tue Nov 23 23:52:42 1999 UTC (12 years, 6 months ago) by fvdl
Branch: MAIN
Changes since 1.13: +2 -2 lines
Diff to previous 1.13 (colored)

Be more careful to block bio interrupts for some data structures. There
were at least a few missed cases where vp->v_{clean,dirty}blkhd were
unprotected since the softdep/trickle sync merge.

Revision 1.11.4.1 / (download) - annotate - [select for diffs], Mon Nov 15 00:42:24 1999 UTC (12 years, 6 months ago) by fvdl
Branch: fvdl-softdep
Changes since 1.11: +3 -4 lines
Diff to previous 1.11 (colored) next main 1.12 (colored)

Sync with -current

Revision 1.13.2.2 / (download) - annotate - [select for diffs], Sat Nov 6 20:33:06 1999 UTC (12 years, 6 months ago) by perseant
Branch: comdex-fall-1999
Changes since 1.13.2.1: +480 -0 lines
Diff to previous 1.13.2.1 (colored) to branchpoint 1.13 (colored) next main 1.14 (colored)

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 1.13.2.1, Sat Nov 6 20:33:05 1999 UTC (12 years, 6 months ago) by perseant
Branch: comdex-fall-1999
Changes since 1.13: +0 -480 lines
FILE REMOVED

file lfs_bio.c was added on branch comdex-fall-1999 on 1999-11-06 20:33:06 +0000

Revision 1.13 / (download) - annotate - [select for diffs], Sat Nov 6 20:33:05 1999 UTC (12 years, 6 months ago) by perseant
Branch: MAIN
CVS Tags: fvdl-softdep-base, comdex-fall-1999-base
Branch point for: comdex-fall-1999
Changes since 1.12: +3 -2 lines
Diff to previous 1.12 (colored)

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 1.9.2.2 / (download) - annotate - [select for diffs], Tue Oct 26 20:27:09 1999 UTC (12 years, 7 months ago) by he
Branch: netbsd-1-4
Changes since 1.9.2.1: +1 -3 lines
Diff to previous 1.9.2.1 (colored) to branchpoint 1.9 (colored)

Pull up revision 1.12 (requested by perseant):
  Fix LFS buffer starvation under degenerate access patterns.

Revision 1.12 / (download) - annotate - [select for diffs], Thu Oct 21 16:53:43 1999 UTC (12 years, 7 months ago) by perseant
Branch: MAIN
Changes since 1.11: +1 -3 lines
Diff to previous 1.11 (colored)

Under degenerate access patterns (e.g. `bonnie' benchmark) lfs_check could
fail, because the particular block being requested was always in the cache
(although other routines that cannot afford to call lfs_check have in the
meantime stuffed the cache full of dirty blocks).  Partially addresses PR 8383.

Revision 1.9.2.1.2.2 / (download) - annotate - [select for diffs], Tue Aug 31 21:03:45 1999 UTC (12 years, 8 months ago) by perseant
Branch: chs-ubc2
Changes since 1.9.2.1.2.1: +24 -3 lines
Diff to previous 1.9.2.1.2.1 (colored) to branchpoint 1.9.2.1 (colored) next main 1.9.2.2 (colored)

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 1.9.2.1.2.1 / (download) - annotate - [select for diffs], Mon Jun 21 01:31:08 1999 UTC (12 years, 11 months ago) by thorpej
Branch: chs-ubc2
Changes since 1.9.2.1: +37 -29 lines
Diff to previous 1.9.2.1 (colored)

Sync w/ -current.

Revision 1.11 / (download) - annotate - [select for diffs], Tue Jun 1 03:00:40 1999 UTC (12 years, 11 months ago) by perseant
Branch: MAIN
CVS Tags: chs-ubc2-base
Branch point for: wrstuden-devbsize, thorpej_scsipi, fvdl-softdep
Changes since 1.10: +37 -29 lines
Diff to previous 1.10 (colored)

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 1.9.2.1 / (download) - annotate - [select for diffs], Tue Apr 13 21:33:55 1999 UTC (13 years, 1 month ago) by perseant
Branch: netbsd-1-4
CVS Tags: netbsd-1-4-RELEASE, netbsd-1-4-PATCH001, kame_14_19990705, kame_14_19990628, kame_141_19991130, kame
Branch point for: chs-ubc2
Changes since 1.9: +14 -4 lines
Diff to previous 1.9 (colored)

Pull-up of changes made to the trunk on Sunday [1.9->1.10], to wit:

Take out the `#ifdef USE_UFSHASH'; use ufs_hashlock to lock the inode free
list instead of free_lock.

Fix inode reporting in lfs_statfs (the meaning of f_files and f_ffree was
reversed).

Fix "lfs_ifind: dinode xxx not found" panic.  When inodes were freed, then
immediately reloaded, their dinodes were located in an inode block which
was not on disk at the advertized location, nor in the cache (although it
would be flushed to disk next segment write).  Fix this by using getblk()
instead of lfs_newbuf() for inode blocks.

Better checking for held inode locks in lfs_fastvget, for a number of
error conditions.  Also change the default setting of lfs_clean_vnhead to
0, which seems to make the locking problems go away (although this is
difficult to test as I can't reliably reproduce them).

Make sure that the wakeup occurs for vnodes that lfs_update might be
sleeping on (nodes which are not marked IN_MODIFIED/IN_CLEANING, but which
have dirty buffers), by marking them with the appropriate flag if
dirtybuffers were added while the write was in progress.

Fix block counting during file truncation, if not truncating to zero.

Disallow threshold-initiated cache flush when dirops are active.  Also,
make SET_ENDOP use lfs_check instead of inlining most of it.

Improve the debugging printfs in the cleaner syscalls (in particular, make
it obvious that they're coming from lfs).

Check the superblock version field, and refuse to mount the filesystem if
the version number is higher than we know about.  This allows, e.g.,
changes in the format of the ifile, segment size restrictions and
boundaries, etc., which would not affect existing fields in the
superblock, but which would drastically affect the filesystem, to be
smoothly integrated at a later date.

Revision 1.10 / (download) - annotate - [select for diffs], Mon Apr 12 00:36:47 1999 UTC (13 years, 1 month ago) by perseant
Branch: MAIN
Changes since 1.9: +14 -4 lines
Diff to previous 1.9 (colored)

Disallow threshold-initiated cache flush when dirops are active.  Also, make
SET_ENDOP use lfs_check instead of inlining most of it.

Revision 1.9 / (download) - annotate - [select for diffs], Thu Mar 25 22:26:52 1999 UTC (13 years, 2 months ago) by perseant
Branch: MAIN
CVS Tags: netbsd-1-4-base
Branch point for: netbsd-1-4
Changes since 1.8: +4 -3 lines
Diff to previous 1.8 (colored)

Fixes to make dirops and lfs_vflush play together well.  In particular,
if we are short on vnodes, lfs_vflush from another process can grab a
vnode that lfs_markv has already processed but not yet written; but
lfs_markv holds the seglock.  When lfs_vflush gets around to writing it,
the context for copyin is gone.  So, now lfs_markv calls copyin itself,
rather than having lfs_writeseg do it.

Revision 1.8 / (download) - annotate - [select for diffs], Thu Mar 25 21:39:18 1999 UTC (13 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.7: +1 -18 lines
Diff to previous 1.7 (colored)

clean up unused/required #ifdefs

Revision 1.7 / (download) - annotate - [select for diffs], Wed Mar 10 00:20:00 1999 UTC (13 years, 2 months ago) by perseant
Branch: MAIN
Changes since 1.6: +325 -48 lines
Diff to previous 1.6 (colored)

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 1.6 / (download) - annotate - [select for diffs], Sun Mar 1 02:23:24 1998 UTC (14 years, 2 months ago) by fvdl
Branch: MAIN
CVS Tags: kenh-if-detach-base, kenh-if-detach, eeh-paddr_t-base, eeh-paddr_t, chs-ubc-base, chs-ubc
Changes since 1.5: +22 -13 lines
Diff to previous 1.5 (colored)

Merge with Lite2 + local changes

Revision 1.1.1.2 / (download) - annotate - [select for diffs] (vendor branch), Sun Mar 1 02:14:11 1998 UTC (14 years, 2 months ago) by fvdl
Branch: netbsd, CSRG
CVS Tags: lite-2
Changes since 1.1.1.1: +21 -10 lines
Diff to previous 1.1.1.1 (colored)

Import 4.4BSD-Lite2

Revision 1.1.1.1 / (download) - annotate - [select for diffs] (vendor branch), Sun Mar 1 02:10:47 1998 UTC (14 years, 2 months ago) by fvdl
Branch: netbsd, CSRG
CVS Tags: lite-1, date-03-may-96
Changes since 1.1: +2 -3 lines
Diff to previous 1.1 (colored)

Import 4.4BSD-Lite for reference

Revision 1.5 / (download) - annotate - [select for diffs], Fri Feb 9 22:28:49 1996 UTC (16 years, 3 months ago) by christos
Branch: 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, netbsd-1-2-base, netbsd-1-2-RELEASE, netbsd-1-2-PATCH001, netbsd-1-2-BETA, netbsd-1-2, mrg-vm-swap, marc-pcmcia-bp, marc-pcmcia-base, marc-pcmcia, is-newarp-before-merge, is-newarp-base, is-newarp, bouyer-scsipi
Changes since 1.4: +10 -7 lines
Diff to previous 1.4 (colored)

lfs prototypes

Revision 1.4 / (download) - annotate - [select for diffs], Sun Jun 18 14:48:33 1995 UTC (16 years, 11 months ago) by cgd
Branch: MAIN
CVS Tags: netbsd-1-1-base, netbsd-1-1-RELEASE, netbsd-1-1-PATCH001, netbsd-1-1
Changes since 1.3: +2 -2 lines
Diff to previous 1.3 (colored)

don't assume the f_fsnamelen is nul-truncated or longer than MFSNAMELEN

Revision 1.3 / (download) - annotate - [select for diffs], Wed Jan 18 06:19:52 1995 UTC (17 years, 4 months ago) by mycroft
Branch: MAIN
Changes since 1.2: +3 -2 lines
Diff to previous 1.2 (colored)

Turn mountlist into a CIRCLEQ, and handle setting and checking of MNT_ROOTFS
differently.

Revision 1.2 / (download) - annotate - [select for diffs], Wed Jun 29 06:46:52 1994 UTC (17 years, 11 months ago) by cgd
Branch: 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
Changes since 1.1: +3 -2 lines
Diff to previous 1.1 (colored)

New RCS ID's, take two.  they're more aesthecially pleasant, and use 'NetBSD'

Revision 1.1 / (download) - annotate - [select for diffs], Wed Jun 8 11:42:28 1994 UTC (17 years, 11 months ago) by mycroft
Branch: MAIN

Update to 4.4-Lite fs code, with local changes.

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