Author: kib
Date: Thu Dec 18 11:58:12 2008
New Revision: 186276
URL: http://svn.freebsd.org/changeset/base/186276
Log:
Do not return success and doomed vnode from lookup. LK_UPGRADE allows
the vnode to be reclaimed.
Tested by: pho
MFC after: 1 month
Modified:
head/sys/kern/vfs_lookup.c
Modified: head/sys/kern/vfs_lookup.c
==============================================================================
--- head/sys/kern/vfs_lookup.c Thu Dec 18 09:59:24 2008 (r186275)
+++ head/sys/kern/vfs_lookup.c Thu Dec 18 11:58:12 2008 (r186276)
@@ -814,6 +814,10 @@ success:
if ((cnp->cn_flags & (ISLASTCN | LOCKSHARED | LOCKLEAF)) ==
(ISLASTCN | LOCKLEAF) && VOP_ISLOCKED(dp) != LK_EXCLUSIVE) {
vn_lock(dp, LK_UPGRADE | LK_RETRY);
+ if (dp->v_iflag & VI_DOOMED) {
+ error = ENOENT;
+ goto bad2;
+ }
}
if (vfslocked && dvfslocked)
VFS_UNLOCK_GIANT(dvfslocked); /* Only need one */
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