Author: pjd
Date: Mon Aug 17 09:14:58 2009
New Revision: 196298
URL: http://svn.freebsd.org/changeset/base/196298
Log:
MFC r196297:
Fix panic in zfs recv code. The last vnode (mountpoint's vnode) can have
0 usecount.
Reported by: Thomas Backman <seren...@exscape.org>
Approved by: re (kib)
Modified:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/ata/ (props changed)
stable/8/sys/dev/cxgb/ (props changed)
stable/8/sys/dev/mfi/ (props changed)
stable/8/sys/dev/xen/netfront/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
stable/8/sys/modules/dtrace/dtnfsclient/ (props changed)
stable/8/sys/modules/ip6_mroute_mod/ (props changed)
stable/8/sys/modules/ipmi/ipmi_linux/ (props changed)
stable/8/sys/netinet/ipfw/ip_dummynet.c (props changed)
stable/8/sys/netinet/ipfw/ip_fw2.c (props changed)
stable/8/sys/netinet/ipfw/ip_fw_nat.c (props changed)
stable/8/sys/netinet/ipfw/ip_fw_pfil.c (props changed)
stable/8/sys/netipx/spx_reass.c (props changed)
stable/8/sys/xen/evtchn.h (props changed)
stable/8/sys/xen/hypervisor.h (props changed)
stable/8/sys/xen/xen_intr.h (props changed)
Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
==============================================================================
--- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
Mon Aug 17 09:13:22 2009 (r196297)
+++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
Mon Aug 17 09:14:58 2009 (r196298)
@@ -917,7 +917,7 @@ zfsvfs_teardown(zfsvfs_t *zfsvfs, boolea
for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL;
zp = list_next(&zfsvfs->z_all_znodes, zp))
if (zp->z_dbuf) {
- ASSERT(ZTOV(zp)->v_count > 0);
+ ASSERT(ZTOV(zp)->v_count >= 0);
zfs_znode_dmu_fini(zp);
}
mutex_exit(&zfsvfs->z_znodes_lock);
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