Author: mav
Date: Mon Jun 23 13:15:24 2014
New Revision: 267790
URL: http://svnweb.freebsd.org/changeset/base/267790
Log:
MFC r267362:
Remove unneeded mountlist_mtx acquisition from sync_fsync().
All struct mount fields accessed by sync_fsync() are protected by MNT_MTX.
Modified:
stable/9/sys/kern/vfs_subr.c
Directory Properties:
stable/9/ (props changed)
stable/9/sys/ (props changed)
Modified: stable/9/sys/kern/vfs_subr.c
==============================================================================
--- stable/9/sys/kern/vfs_subr.c Mon Jun 23 13:14:26 2014
(r267789)
+++ stable/9/sys/kern/vfs_subr.c Mon Jun 23 13:15:24 2014
(r267790)
@@ -3781,11 +3781,8 @@ sync_fsync(struct vop_fsync_args *ap)
* Walk the list of vnodes pushing all that are dirty and
* not already on the sync list.
*/
- mtx_lock(&mountlist_mtx);
- if (vfs_busy(mp, MBF_NOWAIT | MBF_MNTLSTLOCK) != 0) {
- mtx_unlock(&mountlist_mtx);
+ if (vfs_busy(mp, MBF_NOWAIT) != 0)
return (0);
- }
if (vn_start_write(NULL, &mp, V_NOWAIT) != 0) {
vfs_unbusy(mp);
return (0);
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