Author: kib
Date: Tue Aug 27 08:28:38 2019
New Revision: 351542
URL: https://svnweb.freebsd.org/changeset/base/351542
Log:
vn_vget_ino_gen(): relock the lower vnode on error.
The function' interface assumes that the lower vnode is passed and
returned locked always.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Modified:
head/sys/kern/vfs_vnops.c
Modified: head/sys/kern/vfs_vnops.c
==============================================================================
--- head/sys/kern/vfs_vnops.c Tue Aug 27 07:17:31 2019 (r351541)
+++ head/sys/kern/vfs_vnops.c Tue Aug 27 08:28:38 2019 (r351542)
@@ -2097,7 +2097,7 @@ vn_vget_ino_gen(struct vnode *vp, vn_get_ino_t alloc,
VOP_UNLOCK(vp, 0);
error = alloc(mp, alloc_arg, lkflags, rvp);
vfs_unbusy(mp);
- if (*rvp != vp)
+ if (error != 0 || *rvp != vp)
vn_lock(vp, ltype | LK_RETRY);
if (vp->v_iflag & VI_DOOMED) {
if (error == 0) {
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