Author: pjd
Date: Mon Aug 17 09:13:22 2009
New Revision: 196297
URL: http://svn.freebsd.org/changeset/base/196297
Log:
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:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c Mon Aug
17 09:03:47 2009 (r196296)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c Mon Aug
17 09:13:22 2009 (r196297)
@@ -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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