d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use traverse() function to find and return mount point's vnode instead of

Browse Source 
covered vnode when snapshot is already mounted.

MFC after:	3 days
This commit is contained in:
Pawel Jakub Dawidek 2009-09-26 00:07:14 +00:00
parent 1aba32d9b4
commit a99aaff645
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ctldir.c
View File

@ -818,7 +818,11 @@ zfsctl_snapdir_lookup(ap)
if ((sep = avl_find(&sdp->sd_snaps, &search, &where)) != NULL) {
*vpp = sep->se_root;
VN_HOLD(*vpp);
if ((*vpp)->v_mountedhere == NULL) {
err = traverse(vpp, LK_EXCLUSIVE | LK_RETRY);
if (err) {
VN_RELE(*vpp);
*vpp = NULL;
} else if (*vpp == sep->se_root) {
/*
* The snapshot was unmounted behind our backs,
* try to remount it.
@ -832,10 +836,9 @@ zfsctl_snapdir_lookup(ap)
*/
(*vpp)->v_flag &= ~VROOT;
}
vn_lock(*vpp, LK_EXCLUSIVE | LK_RETRY);
mutex_exit(&sdp->sd_lock);
ZFS_EXIT(zfsvfs);
return (0);
return (err);
}
/*