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| author | Dave Chinner <dchinner@redhat.com> | 2010-12-16 17:08:41 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2010-12-16 17:08:41 +1100 |
| commit | 1a427ab0c1b205d1bda8da0b77ea9d295ac23c57 (patch) | |
| tree | dc0fffd22282d0da29da43b3ebdeed7c3f5fac1d /fs/xfs/xfs_mount.c | |
| parent | 1a3e8f3da09c7082d25b512a0ffe569391e4c09a (diff) | |
| download | lwn-1a427ab0c1b205d1bda8da0b77ea9d295ac23c57.tar.gz lwn-1a427ab0c1b205d1bda8da0b77ea9d295ac23c57.zip | |
xfs: convert pag_ici_lock to a spin lock
now that we are using RCU protection for the inode cache lookups,
the lock is only needed on the modification side. Hence it is not
necessary for the lock to be a rwlock as there are no read side
holders anymore. Convert it to a spin lock to reflect it's exclusive
nature.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_mount.c')
| -rw-r--r-- | fs/xfs/xfs_mount.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c index 40579fdf0d0a..d447aef84bc3 100644 --- a/fs/xfs/xfs_mount.c +++ b/fs/xfs/xfs_mount.c @@ -472,7 +472,7 @@ xfs_initialize_perag( goto out_unwind; pag->pag_agno = index; pag->pag_mount = mp; - rwlock_init(&pag->pag_ici_lock); + spin_lock_init(&pag->pag_ici_lock); mutex_init(&pag->pag_ici_reclaim_lock); INIT_RADIX_TREE(&pag->pag_ici_root, GFP_ATOMIC); spin_lock_init(&pag->pag_buf_lock); |