From 139ccddec0709558feaa2c862e2a30138563cb80 Mon Sep 17 00:00:00 2001 From: Kip Macy Date: Sat, 30 May 2009 19:26:35 +0000 Subject: [PATCH] work around snapshot shutdown race reported by Henri Hennebert --- sys/cddl/contrib/opensolaris/uts/common/fs/gfs.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/gfs.c b/sys/cddl/contrib/opensolaris/uts/common/fs/gfs.c index d9eb88a4020..cd522bfebbf 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/gfs.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/gfs.c @@ -564,8 +564,13 @@ gfs_file_inactive(vnode_t *vp) if (fp->gfs_parent == NULL || (vp->v_flag & V_XATTRDIR)) goto found; - dp = fp->gfs_parent->v_data; - + /* + * XXX cope with a FreeBSD-specific race wherein the parent's + * snapshot data can be freed before the parent is + */ + if ((dp = fp->gfs_parent->v_data) == NULL) + return (NULL); + /* * First, see if this vnode is cached in the parent. */