cvs commit: src/sys/ufs/ufs quota.h ufs_quota.c src/sys/ufs/ffs
grafan at gmail.com
Wed Mar 14 11:22:30 UTC 2007
On 3/14/07, Konstantin Belousov <kib at freebsd.org> wrote:
> kib 2007-03-14 08:54:08 UTC
> FreeBSD src repository
> Modified files:
> sys/ufs/ufs quota.h ufs_quota.c
> sys/ufs/ffs ffs_vfsops.c
> Implement fine-grained locking for UFS quotas.
Thank you! When will we see it in RELENG_6?
> Each struct dquot gets dq_lock mutex to protect dq_flags and to interlock
> with DQ_LOCK. qhash, dqfreelist and dq.dq_cnt are protected by global
> dqhlock mutex.
> i_dquot array for inode is protected by lockmgr' vnode lock, corresponding
> assert added to the dqget(). Access to struct ufsmount quota-related fields
> (um_quotas and um_qflags) is protected by um_lock.
> Tested by: Peter Holm
> Reviewed by: tegge
> Approved by: re (kensmith)
> This work were not possible without enormous amount of help given by
> Tor Egge and Peter Holm. Tor reviewed each version of patch, pointed out
> numerous errors and provided invaluable suggestions. Peter did tireless
> testing of the patch as it was developed.
> Revision Changes Path
> 1.327 +0 -2 src/sys/ufs/ffs/ffs_vfsops.c
> 1.30 +24 -4 src/sys/ufs/ufs/quota.h
> 1.93 +469 -136 src/sys/ufs/ufs/ufs_quota.c
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