Author: kib
Date: Wed Jan 6 16:02:22 2016
New Revision: 293235
URL: https://svnweb.freebsd.org/changeset/base/293235
Log:
MFC r292961:
Force nullfs vnode reclaim after unlinking, to potentially unlink
lower vnode.
Modified:
stable/10/sys/fs/nullfs/null_vnops.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/fs/nullfs/null_vnops.c
==============================================================================
--- stable/10/sys/fs/nullfs/null_vnops.c Wed Jan 6 15:50:21 2016
(r293234)
+++ stable/10/sys/fs/nullfs/null_vnops.c Wed Jan 6 16:02:22 2016
(r293235)
@@ -568,14 +568,16 @@ static int
null_remove(struct vop_remove_args *ap)
{
int retval, vreleit;
- struct vnode *lvp;
+ struct vnode *lvp, *vp;
- if (vrefcnt(ap->a_vp) > 1) {
- lvp = NULLVPTOLOWERVP(ap->a_vp);
+ vp = ap->a_vp;
+ if (vrefcnt(vp) > 1) {
+ lvp = NULLVPTOLOWERVP(vp);
VREF(lvp);
vreleit = 1;
} else
vreleit = 0;
+ VTONULL(vp)->null_flags |= NULLV_DROP;
retval = null_bypass(&ap->a_gen);
if (vreleit != 0)
vrele(lvp);
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