linux-kernel - [PATCH 3.16.y-ckt 138/183] libceph: assert both regular and lingering lists in __remove

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Date:	Fri,  6 Mar 2015 09:57:09 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Ilya Dryomov <ilya.dryomov@...tank.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 138/183] libceph: assert both regular and lingering lists in __remove_osd()

3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ilya Dryomov <ilya.dryomov@...tank.com>

commit 7c6e6fc53e7335570ed82f77656cedce1502744e upstream.

It is important that both regular and lingering requests lists are
empty when the OSD is removed.

Signed-off-by: Ilya Dryomov <ilya.dryomov@...tank.com>
Reviewed-by: Alex Elder <elder@...aro.org>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 net/ceph/osd_client.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 05be0c181695..14e0387e3595 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1008,6 +1008,8 @@ static void __remove_osd(struct ceph_osd_client *osdc, struct ceph_osd *osd)
 {
 	dout("__remove_osd %p\n", osd);
 	BUG_ON(!list_empty(&osd->o_requests));
+	BUG_ON(!list_empty(&osd->o_linger_requests));
+
 	rb_erase(&osd->o_node, &osdc->osds);
 	list_del_init(&osd->o_osd_lru);
 	ceph_con_close(&osd->o_con);
--
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