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authorAlex Elder <elder@inktank.com>2013-04-01 18:58:26 -0500
committerSage Weil <sage@inktank.com>2013-05-01 21:17:51 -0700
commit8058fd45039724695d5b67a574544452635d64a9 (patch)
treee8b81188ec59a47e95846ac5857291554071cec8 /net/ceph
parent3bf53337af27a3ccc6e0f433b081063cdf0a2bf6 (diff)
libceph: drop mutex on error in handle_reply()
The osd client mutex is acquired just before getting a reference to a request in handle_reply(). However the error paths after that don't drop the mutex before returning as they should. Drop the mutex after dropping the request reference. Also add a bad_mutex label at that point and use it so the failed request lookup case can be handled with the rest. This resolves: http://tracker.ceph.com/issues/4615 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 55f7c9a57a43..69ef6539ca14 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1337,8 +1337,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg,
req = __lookup_request(osdc, tid);
if (req == NULL) {
dout("handle_reply tid %llu dne\n", tid);
- mutex_unlock(&osdc->request_mutex);
- return;
+ goto bad_mutex;
}
ceph_osdc_get_request(req);
@@ -1437,6 +1436,8 @@ done:
bad_put:
ceph_osdc_put_request(req);
+bad_mutex:
+ mutex_unlock(&osdc->request_mutex);
bad:
pr_err("corrupt osd_op_reply got %d %d\n",
(int)msg->front.iov_len, le32_to_cpu(msg->hdr.front_len));

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