Author: davide
Date: Wed Nov 14 18:43:58 2012
New Revision: 243033
URL: http://svnweb.freebsd.org/changeset/base/243033
Log:
Fix the lookup in the DOTDOT case in the same way as other filesystems do,
i.e. inlining the vn_vget_ino() algorithm.
Sponsored by: iXsystems inc.
Modified:
head/sys/fs/smbfs/smbfs_vnops.c
Modified: head/sys/fs/smbfs/smbfs_vnops.c
==============================================================================
--- head/sys/fs/smbfs/smbfs_vnops.c Wed Nov 14 17:44:37 2012
(r243032)
+++ head/sys/fs/smbfs/smbfs_vnops.c Wed Nov 14 18:43:58 2012
(r243033)
@@ -1278,9 +1278,30 @@ smbfs_lookup(ap)
goto out;
}
if (flags & ISDOTDOT) {
+ mp = dvp->v_mount;
+ error = vfs_busy(mp, MBF_NOWAIT);
+ if (error != 0) {
+ vfs_ref(mp);
+ VOP_UNLOCK(dvp, 0);
+ error = vfs_busy(mp, 0);
+ vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
+ vfs_rel(mp);
+ if (error)
+ return (ENOENT);
+ if ((dvp->v_iflag & VI_DOOMED) != 0) {
+ vfs_unbusy(mp);
+ return (ENOENT);
+ }
+ }
VOP_UNLOCK(dvp, 0);
error = smbfs_nget(mp, dvp, name, nmlen, NULL, &vp);
+ vfs_unbusy(mp);
vn_lock(dvp, LK_EXCLUSIVE | LK_RETRY);
+ if ((dvp->v_iflag & VI_DOOMED) != 0) {
+ if (error == 0)
+ vput(vp);
+ error = ENOENT;
+ }
if (error)
goto out;
*vpp = vp;
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