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Revert "Remove TSD zfs_fsyncer_key"

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This reverts commit 31f2b5abdf back
to the original code until the fsync(2) performance regression
can be addressed.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2012-12-20 09:55:47 -08:00
parent 23e3c743f6
commit d5446cfc52
4 changed files with 16 additions and 1 deletions
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module/zfs/zfs_vnops.c
+4
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@@ -2070,12 +2070,16 @@ out:
}
EXPORT_SYMBOL(zfs_readdir);
ulong_t zfs_fsync_sync_cnt = 4;
int
zfs_fsync(struct inode *ip, int syncflag, cred_t *cr)
{
znode_t *zp = ITOZ(ip);
zfs_sb_t *zsb = ITOZSB(ip);
(void) tsd_set(zfs_fsyncer_key, (void *)zfs_fsync_sync_cnt);
if (zsb->z_os->os_sync != ZFS_SYNC_DISABLED) {
ZFS_ENTER(zsb);
ZFS_VERIFY_ZP(zp);