3.5.7u1 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Sage Weil <s...@inktank.com> commit 5469155f2bc83bb2c88b0a0370c3d54d87eed06e upstream. Take the con mutex while we are initiating a ceph open. This is necessary because the may have previously been in use and then closed, which could result in a racing workqueue running con_work(). Signed-off-by: Sage Weil <s...@inktank.com> Reviewed-by: Yehuda Sadeh <yeh...@inktank.com> Reviewed-by: Alex Elder <el...@inktank.com> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesin...@canonical.com> --- net/ceph/messenger.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index f1bd3bb..a477998 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -537,6 +537,7 @@ void ceph_con_open(struct ceph_connection *con, __u8 entity_type, __u64 entity_num, struct ceph_entity_addr *addr) { + mutex_lock(&con->mutex); dout("con_open %p %s\n", con, ceph_pr_addr(&addr->in_addr)); set_bit(OPENING, &con->state); WARN_ON(!test_and_clear_bit(CLOSED, &con->state)); @@ -546,6 +547,7 @@ void ceph_con_open(struct ceph_connection *con, memcpy(&con->peer_addr, addr, sizeof(*addr)); con->delay = 0; /* reset backoff memory */ + mutex_unlock(&con->mutex); queue_con(con); } EXPORT_SYMBOL(ceph_con_open); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/