ceph: fix bad pointer dereference in ceph_fill_trace



We dereference *in a few lines down, but only set it on rename.  It is
apparently pretty rare for this to trigger, but I have been hitting it
with a clustered MDSs.

Signed-off-by: Sage Weil <sage@newdream.net>

parent df9f86fa

fs/ceph/inode.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -1055,7 +1055,8 @@ int ceph_fill_trace(struct super_block sb, struct ceph_mds_request req,
		ininfo = rinfo->targeti.in;
		vino.ino = le64_to_cpu(ininfo->ino);
		vino.snap = le64_to_cpu(ininfo->snapid);
		if (!dn->d_inode) {
		in = dn->d_inode;
		if (!in) {
		in = ceph_get_inode(sb, vino);
		if (IS_ERR(in)) {
		pr_err("fill_trace bad get_inode "