commit 85792d0dd6e7a7a18fba55c97e49871211b28fe0
author Sage Weil <sage@newdream.net> Thu May 13 09:06:02 2010 -0700
committer Sage Weil <sage@newdream.net> Mon May 17 15:25:39 2010 -0700
tree 7b8405250e818f8d5b71d9495c06bf5773d9c5e7
parent aba558e28ac40a598542d995c09efa8439ee3ed4

ceph: cope with out of order (unsafe after safe) mds reply

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

fs/ceph/mds_client.c

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 114bada..40dd437 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1871,6 +1871,12 @@
 		mutex_unlock(&mdsc->mutex);
 		goto out;
 	}
+	if (req->r_got_safe && !head->safe) {
+		pr_warning("got unsafe after safe on %llu from mds%d\n",
+			   tid, mds);
+		mutex_unlock(&mdsc->mutex);
+		goto out;
+	}
 
 	result = le32_to_cpu(head->result);