[Cluster-devel] [PATCH] dlm: close othercons

[David Teigland]

From: Patrick Caulfeld <pcaulfie at redhat.com>

This patch addresses a problem introduced with the last round of
lowcomms patches where the 'othercon' connections do not get freed when
the DLM shuts down.

This results in the error message
"slab error in kmem_cache_destroy(): cache `dlm_conn': Can't free all
objects"

and the DLM cannot be restarted without a system reboot.

See bz#428119

Signed-off-by: Patrick Caulfield <pcaulfie at redhat.com>
Signed-off-by: Fabio M. Di Nitto <fabbione at ubuntu.com>
Signed-off-by: David Teigland <teigland at redhat.com>
---
 fs/dlm/lowcomms.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 0bea802..b1cb855 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1437,6 +1437,8 @@ void dlm_lowcomms_stop(void)
 		con = __nodeid2con(i, 0);
 		if (con) {
 			close_connection(con, true);
+			if (con->othercon)
+				kmem_cache_free(con_cache, con->othercon);
 			kmem_cache_free(con_cache, con);
 		}
 	}
-- 
1.5.3.3