linux-kernel - [PATCH 3.5 21/96] ceph: cleanup aborted requests when re-sending requests.

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Date:	Mon, 13 Jan 2014 14:23:44 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	"Yan, Zheng" <zheng.z.yan@...el.com>, Sage Weil <sage@...tank.com>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.5 21/96] ceph: cleanup aborted requests when re-sending requests.

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

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

From: "Yan, Zheng" <zheng.z.yan@...el.com>

commit eb1b8af33c2e42a9a57fc0a7588f4a7b255d2e79 upstream.

Aborted requests usually get cleared when the reply is received.
If MDS crashes, no reply will be received. So we need to cleanup
aborted requests when re-sending requests.

Signed-off-by: Yan, Zheng <zheng.z.yan@...el.com>
Reviewed-by: Greg Farnum <greg@...tank.com>
Signed-off-by: Sage Weil <sage@...tank.com>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 fs/ceph/mds_client.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 0b26ea8..5efe309 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1815,8 +1815,11 @@ static int __do_request(struct ceph_mds_client *mdsc,
 	int mds = -1;
 	int err = -EAGAIN;
 
-	if (req->r_err || req->r_got_result)
+	if (req->r_err || req->r_got_result) {
+		if (req->r_aborted)
+			__unregister_request(mdsc, req);
 		goto out;
+	}
 
 	if (req->r_timeout &&
 	    time_after_eq(jiffies, req->r_started + req->r_timeout)) {
-- 
1.8.3.2

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