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CVS log for src/sys/ufs/ufs/quota2_subr.c

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Revision 1.4.2.1 / (download) - annotate - [select for diffs], Tue Apr 17 00:08:57 2012 UTC (2 years ago) by yamt
Branch: yamt-pagecache
Changes since 1.4: +22 -3 lines
Diff to previous 1.4 (colored) next main 1.5 (colored)

sync with head

Revision 1.4.6.1 / (download) - annotate - [select for diffs], Sat Feb 18 07:35:56 2012 UTC (2 years, 2 months ago) by mrg
Branch: jmcneill-usbmp
Changes since 1.4: +22 -3 lines
Diff to previous 1.4 (colored) next main 1.5 (colored)

merge to -current.

Revision 1.5 / (download) - annotate - [select for diffs], Sun Feb 5 14:19:04 2012 UTC (2 years, 2 months ago) by dholland
Branch: MAIN
CVS Tags: yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, rmind-smpnet-nbase, rmind-smpnet-base, rmind-smpnet, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, khorben-n900, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base10, agc-symver-base, agc-symver, HEAD
Changes since 1.4: +22 -3 lines
Diff to previous 1.4 (colored)

Migrate one last leftover bit (used only by the kernel now) to
sys/ufs/ufs and remove the old quota headers and no-longer-used shared
code. Ok by releng.

Revision 1.3.4.1 / (download) - annotate - [select for diffs], Thu Jun 23 14:20:32 2011 UTC (2 years, 9 months ago) by cherry
Branch: cherry-xenmp
Changes since 1.3: +2 -4 lines
Diff to previous 1.3 (colored) next main 1.4 (colored)

Catchup with rmind-uvmplock merge.

Revision 1.3.2.3 / (download) - annotate - [select for diffs], Sun Jun 12 00:24:31 2011 UTC (2 years, 10 months ago) by rmind
Branch: rmind-uvmplock
Changes since 1.3.2.2: +0 -2 lines
Diff to previous 1.3.2.2 (colored) to branchpoint 1.3 (colored) next main 1.4 (colored)

sync with head

Revision 1.4 / (download) - annotate - [select for diffs], Tue Jun 7 14:56:13 2011 UTC (2 years, 10 months ago) by bouyer
Branch: MAIN
CVS Tags: yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, rmind-uvmplock-nbase, rmind-uvmplock-base, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base, jmcneill-audiomp3-base, jmcneill-audiomp3
Branch point for: yamt-pagecache, jmcneill-usbmp
Changes since 1.3: +2 -4 lines
Diff to previous 1.3 (colored)

Fix bad cut'n'paste in copyright. Pointed out by dyoung@

Revision 1.3.6.2 / (download) - annotate - [select for diffs], Mon Jun 6 09:10:18 2011 UTC (2 years, 10 months ago) by jruoho
Branch: jruoho-x86intr
Changes since 1.3.6.1: +110 -0 lines
Diff to previous 1.3.6.1 (colored) to branchpoint 1.3 (colored) next main 1.4 (colored)

Sync with HEAD.

Revision 1.3.2.2 / (download) - annotate - [select for diffs], Thu Apr 21 01:42:21 2011 UTC (2 years, 11 months ago) by rmind
Branch: rmind-uvmplock
Changes since 1.3.2.1: +110 -0 lines
Diff to previous 1.3.2.1 (colored) to branchpoint 1.3 (colored)

sync with head

Revision 1.3.6.1, Thu Mar 24 17:05:46 2011 UTC (3 years ago) by jruoho
Branch: jruoho-x86intr
Changes since 1.3: +0 -110 lines
FILE REMOVED

file quota2_subr.c was added on branch jruoho-x86intr on 2011-06-06 09:10:18 +0000

Revision 1.3.2.1, Thu Mar 24 17:05:46 2011 UTC (3 years ago) by rmind
Branch: rmind-uvmplock
Changes since 1.3: +0 -110 lines
FILE REMOVED

file quota2_subr.c was added on branch rmind-uvmplock on 2011-04-21 01:42:21 +0000

Revision 1.3 / (download) - annotate - [select for diffs], Thu Mar 24 17:05:46 2011 UTC (3 years ago) by bouyer
Branch: MAIN
CVS Tags: cherry-xenmp-base
Branch point for: rmind-uvmplock, jruoho-x86intr, cherry-xenmp
Changes since 1.2: +2 -20 lines
Diff to previous 1.2 (colored)

Add a new libquota library, which contains some blocks to build and/or
parse quota plists; as well as a getfsquota() function to retrieve quotas
for a single id from a single filesystem (whatever filesystem this is:
a local quota-enabled fs or NFS). This is build on functions getufsquota()
(for local filesystems with UFS-like quotas) and getnfsquota();
which are also available to userland programs.
move functions from quota2_subr.c to libquota or libprop as appropriate,
and ajust in-tree quota tools.
move some declarations from kernel headers to either sys/quota.h or
quota/quota.h as appropriate. ufs/ufs/quota.h still installed because
it's needed by other installed ufs headers.
ufs/ufs/quota1.h still installed as a quick&dirty way to get a code
using the old quotactl() to compile (just include ufs/ufs/quota1.h instead of
ufs/ufs/quota.h - old code won't compile without this change and this is
on purpose).
Discussed on tech-kern@ and tech-net@ (long thread, but not much about
libquota itself ...)

Revision 1.2 / (download) - annotate - [select for diffs], Sun Mar 6 17:08:39 2011 UTC (3 years, 1 month ago) by bouyer
Branch: MAIN
Changes since 1.1: +128 -0 lines
Diff to previous 1.1 (colored)

merge the bouyer-quota2 branch. This adds a new on-disk format
to store disk quota usage and limits, integrated with ffs
metadata. Usage is checked by fsck_ffs (no more quotacheck)
and is covered by the WAPBL journal. Enabled with kernel
option QUOTA2 (added where QUOTA was enabled in kernel config files),
turned on with tunefs(8) on a per-filesystem
basis. mount_mfs(8) can also turn quotas on.

See http://mail-index.netbsd.org/tech-kern/2011/02/19/msg010025.html
for details.

Revision 1.1.2.6 / (download) - annotate - [select for diffs], Thu Feb 3 17:36:30 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1.2.5: +6 -6 lines
Diff to previous 1.1.2.5 (colored) to branchpoint 1.1 (colored) next main 1.2 (colored)

Change semantic of limits to allow up to the limit inclued (instead of
up to one less than the limit: I feel that if my limit is 1000 inodes
I should be able to create 1000 files, not 999).
Keep the previous semantic for quota1 dquot, the conversion functions
will add or remove 1 when converting limits from/to the new format.

Adjust test for this change.

Revision 1.1.2.5 / (download) - annotate - [select for diffs], Thu Feb 3 15:56:16 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1.2.4: +20 -2 lines
Diff to previous 1.1.2.4 (colored) to branchpoint 1.1 (colored)

factor out code to chech a quota against its limits.

Revision 1.1.2.4 / (download) - annotate - [select for diffs], Mon Jan 31 15:24:10 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1.2.3: +5 -5 lines
Diff to previous 1.1.2.3 (colored) to branchpoint 1.1 (colored)

Catch up with Q2V -> QL renaming
Enforce limits for quota2.
pass quota type (*QUOTA) and limit type (QL_*) to
KAUTH_REQ_SYSTEM_FS_QUOTA_NOLIMIT, to make it possible to skip
limit checks for some quota type only if a listener wants to.

Revision 1.1.2.3 / (download) - annotate - [select for diffs], Fri Jan 28 23:30:34 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1.2.2: +4 -1 lines
Diff to previous 1.1.2.2 (colored) to branchpoint 1.1 (colored)

Add RCSID

Revision 1.1.2.2 / (download) - annotate - [select for diffs], Fri Jan 28 18:36:06 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1.2.1: +22 -1 lines
Diff to previous 1.1.2.1 (colored) to branchpoint 1.1 (colored)

Introduce quota2_ufs_rwq2v() and quota2_ufs_rwq2e() functions, which
byteswap a quota2_val or quota2_entry if needed.
Use this to get quota2_entry in host order before calling q2etoprop().

quota2_walk_list() will byteswap the offset if needed to leave
it in FS byte order in callers.

Revision 1.1.2.1 / (download) - annotate - [select for diffs], Thu Jan 20 14:25:03 2011 UTC (3 years, 2 months ago) by bouyer
Branch: bouyer-quota2
Changes since 1.1: +86 -0 lines
Diff to previous 1.1 (colored)

Snapshot of work in progress on a modernised disk quota system:
- new quotactl syscall (versionned for backward compat), which takes
  as parameter a path to a mount point, and a prop_dictionary
  (in plistref format) describing commands and arguments.
  For each command, status and data are returned as a prop_dictionary.
  quota commands features will be added to take advantage of this,
  exporting quota data or getting quota commands as plists.

- new on disk-format storage (all 64bit wide), integrated to metadata for
  ffs (and playing nicely with wapbl).
  Quotas are enabled on a ffs filesystem via superblock flags.
  tunefs(8) can enable or disable quotas.
  On a quota-enabled filesystem, fsck_ffs(8) will track per-uid/gid
  block and inode usages, and will check and update quotas in Pass 6.
  quota usage and limits are stored in unliked files (one for users,
  one for groups)l fsck_ffs(8) will create the files if needed, or
  free them if needed. This means that after enabling or disabling
  quotas on a filesystem; a fsck_ffs(8) run is required.
  quotacheck(8) is not needed any more, on a unclean shutdown
  fsck or journal replay will take care of fixing quotas.
  newfs(8) can create a ready-to-mount quota-enabled filesystem
  (superblock flags are set and quota inodes are created).
  Other new features or semantic changes:
  - default quota datas, applied to users or groups which don't already
    have a quota entry
  - per-user/group grace time (instead of a filesystem global one)
  - 0 really means "nothing allowed at all", not "no limit".
    If you want "no limit", set the limit to UQUAD_MAX (tools will
    understand "unlimited" and "-")

  A quota file is structured as follow:
  it starts with a header, containing a few per-filesystem values,
  and the default quota limits.
  Quota entries are linked together as a simple list, each entry has a
  pointer (as an offset withing the file) to the next.
  The header has a pointer to a list of free quota entries, and
  a hash table of in-use entries. The size of the hash table depends
  on the filesystem block size (header+hash table should fit in the
  first block). The file is not sparse and is a multiple of
  filesystem block size (when the free quota entry list is empty a new
  filesystem block is allocated). quota entries to not cross
  filesystem block boundaries.

  In memory, the kernel keeps a cache of recently used quota entries
  as a reference to the block number, and offset withing the block.
  The quota entry itself is keept in the buf cache.

fsck_ffs(8), tunefs(8) and newfs(8) supports are completed (with
related atf tests :)
The kernel can update disk usage and report it via quotactl(2).

Todo: enforce quotas limits (limits are not checked by kernel yet)
      update repquota, edquota and rpc.rquotad to the new world
      implement compat_50_quotactl ioctl.
      update quotactl(2) man page

fsck_ffs required fixes so that allocating new blocks or inodes will
properly update the superblock and cg sumaries. This was not an issue up
to now because superblock and cg sumaries check happened last, but now
allocations or frees can happen in pass 6.

Revision 1.1, Thu Jan 20 14:25:03 2011 UTC (3 years, 2 months ago) by bouyer
Branch: MAIN
CVS Tags: bouyer-quota2-nbase, bouyer-quota2-base
Branch point for: bouyer-quota2
FILE REMOVED

file quota2_subr.c was initially added on branch bouyer-quota2.

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