From ef550f6f4f6c9345a27ec85d98f4f7de1adce79c Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Fri, 25 Mar 2011 13:27:48 -0700 Subject: ceph: flush msgr_wq during mds_client shutdown The release method for mds connections uses a backpointer to the mds_client, so we need to flush the workqueue of any pending work (and ceph_connection references) prior to freeing the mds_client. This fixes an oops easily triggered under UML by while true ; do mount ... ; umount ... ; done Also fix an outdated comment: the flush in ceph_destroy_client only flushes OSD connections out. This bug is basically an artifact of the ceph -> ceph+libceph conversion. Signed-off-by: Sage Weil --- net/ceph/ceph_common.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'net/ceph') diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 95f96ab94bba..9bbb356b12e7 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -394,8 +394,8 @@ void ceph_destroy_client(struct ceph_client *client) ceph_osdc_stop(&client->osdc); /* - * make sure mds and osd connections close out before destroying - * the auth module, which is needed to free those connections' + * make sure osd connections close out before destroying the + * auth module, which is needed to free those connections' * ceph_authorizers. */ ceph_msgr_flush(); -- cgit v1.2.2