Author: kib
Date: Tue Dec 23 20:04:31 2008
New Revision: 186455
URL: http://svn.freebsd.org/changeset/base/186455
Log:
Keep the hold on the vnode during VOP_VPTOCNP() call, allowing the vop
implementation to drop vnode lock, if needed.
Reported and tested by: pho
Modified:
head/sys/kern/vfs_cache.c
Modified: head/sys/kern/vfs_cache.c
==============================================================================
--- head/sys/kern/vfs_cache.c Tue Dec 23 19:59:21 2008 (r186454)
+++ head/sys/kern/vfs_cache.c Tue Dec 23 20:04:31 2008 (r186455)
@@ -851,9 +851,9 @@ vn_vptocnp(struct vnode **vp, char **bp,
CACHE_UNLOCK();
vfslocked = VFS_LOCK_GIANT((*vp)->v_mount);
vn_lock(*vp, LK_SHARED | LK_RETRY);
- vdrop(*vp);
error = VOP_VPTOCNP(*vp, &dvp, buf, buflen);
VOP_UNLOCK(*vp, 0);
+ vdrop(*vp);
VFS_UNLOCK_GIANT(vfslocked);
if (error) {
numfullpathfail2++;
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