libceph: warn on msg allocation failures

Any non-masked msg allocation failure should generate a warning and stack
trace to the console.  All of these need to eventually be replaced by
safe preallocation or msgpools.

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

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 2de711a..f56aca3 100644 (file)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -2352,6 +2352,7 @@ out:
        if (!can_fail) {
                pr_err("msg_new can't create type %d front %d\n", type,
                       front_len);
+               WARN_ON(1);
        } else {
                dout("msg_new can't create type %d front %d\n", type,
                     front_len);