3.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sage Weil <s...@inktank.com>
(cherry picked from commit ec87ef4309d33bd9c87a53bb5152a86ae7a65f25)
All references to the embedded ceph_connection come from the msgr
workqueue, which is drained prior to mon_client destruction. That
means we can ignore con refcounting entirely.
Signed-off-by: Sage Weil <s...@newdream.net>
Reviewed-by: Alex Elder <el...@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
net/ceph/mon_client.c | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -1037,9 +1037,23 @@ out:
mutex_unlock(&monc->mutex);
}
+/*
+ * We can ignore refcounting on the connection struct, as all references
+ * will come from the messenger workqueue, which is drained prior to
+ * mon_client destruction.
+ */
+static struct ceph_connection *con_get(struct ceph_connection *con)
+{
+ return con;
+}
+
+static void con_put(struct ceph_connection *con)
+{
+}
+
static const struct ceph_connection_operations mon_con_ops = {
- .get = ceph_con_get,
- .put = ceph_con_put,
+ .get = con_get,
+ .put = con_put,
.dispatch = dispatch,
.fault = mon_fault,
.alloc_msg = mon_alloc_msg,
--
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