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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

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* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (31 commits)
  dquot: Detect partial write error to quota file in write_blk() and add printk_ratelimit for quota error messages
  ocfs2: Fix lock inversion in quotas during umount
  ocfs2: Use __dquot_transfer to avoid lock inversion
  ocfs2: Fix NULL pointer deref when writing local dquot
  ocfs2: Fix estimate of credits needed for quota allocation
  ocfs2: Fix quota locking
  ocfs2: Avoid unnecessary block mapping when refreshing quota info
  ocfs2: Do not map blocks from local quota file on each write
  quota: Refactor dquot_transfer code so that OCFS2 can pass in its references
  quota: unify quota init condition in setattr
  quota: remove sb_has_quota_active in get/set_info
  quota: unify ->set_dqblk
  quota: unify ->get_dqblk
  ext3: make barrier options consistent with ext4
  quota: Make quota stat accounting lockless.
  suppress warning: "quotatypes" defined but not used
  ext3: Fix waiting on transaction during fsync
  jbd: Provide function to check whether transaction will issue data barrier
  ufs: add ufs speciffic ->setattr call
  BKL: Remove BKL from ext2 filesystem
  ...
This commit is contained in:
Linus Torvalds 2010-05-21 10:50:28 -07:00
commit 7ce1418f95
41 changed files with 829 additions and 526 deletions
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15
Documentation/filesystems/ext3.txt
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@ -59,8 +59,19 @@ commit=nrsec (*) Ext3 can be told to sync all its data and metadata
Setting it to very large values will improve
performance.
barrier=1 This enables/disables barriers. barrier=0 disables
it, barrier=1 enables it.
barrier=<0(*)|1> This enables/disables the use of write barriers in
barrier the jbd code. barrier=0 disables, barrier=1 enables.
nobarrier (*) This also requires an IO stack which can support
barriers, and if jbd gets an error on a barrier
write, it will disable again with a warning.
Write barriers enforce proper on-disk ordering
of journal commits, making volatile disk write caches
safe to use, at some performance penalty. If
your disks are battery-backed in one way or another,
disabling barriers may safely improve performance.
The mount options "barrier" and "nobarrier" can
also be used to enable or disable barriers, for
consistency with other ext3 mount options.
orlov (*) This enables the new Orlov block allocator. It is
enabled by default.