[ 3.5.y.z extended stable ] Patch "libceph: register request before unregister linger" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    libceph: register request before unregister linger

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From b7feb95b0c808901d9fdc0c48ae6d93e92e436a5 Mon Sep 17 00:00:00 2001
From: Alex Elder <elder at inktank.com>
Date: Thu, 6 Dec 2012 07:22:04 -0600
Subject: [PATCH] libceph: register request before unregister linger

commit c89ce05e0c5a01a256100ac6a6019f276bdd1ca6 upstream.

In kick_requests(), we need to register the request before we
unregister the linger request.  Otherwise the unregister will
reset the request's osd pointer to NULL.

Signed-off-by: Alex Elder <elder at inktank.com>
Reviewed-by: Sage Weil <sage at inktank.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 net/ceph/osd_client.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 79592c4..60ae916 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1358,8 +1358,8 @@ static void kick_requests(struct ceph_osd_client *osdc, int force_resend)

 		dout("kicking lingering %p tid %llu osd%d\n", req, req->r_tid,
 		     req->r_osd ? req->r_osd->o_osd : -1);
-		__unregister_linger_request(osdc, req);
 		__register_request(osdc, req);
+		__unregister_linger_request(osdc, req);
 	}
 	mutex_unlock(&osdc->request_mutex);

--
1.8.1.2