Patch "ceph: wake up 'safe' waiters when unregistering request" has been added to the 3.10-stable tree

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This is a note to let you know that I've just added the patch titled

    ceph: wake up 'safe' waiters when unregistering request

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ceph-wake-up-safe-waiters-when-unregistering-request.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From fc55d2c9448b34218ca58733a6f51fbede09575b Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@xxxxxxxxx>
Date: Thu, 31 Oct 2013 09:10:47 +0800
Subject: ceph: wake up 'safe' waiters when unregistering request

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

commit fc55d2c9448b34218ca58733a6f51fbede09575b upstream.

We also need to wake up 'safe' waiters if error occurs or request
aborted. Otherwise sync(2)/fsync(2) may hang forever.

Signed-off-by: Yan, Zheng <zheng.z.yan@xxxxxxxxx>
Signed-off-by: Sage Weil <sage@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/ceph/mds_client.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -639,6 +639,8 @@ static void __unregister_request(struct
 		req->r_unsafe_dir = NULL;
 	}
 
+	complete_all(&req->r_safe_completion);
+
 	ceph_mdsc_put_request(req);
 }
 
@@ -2154,7 +2156,6 @@ static void handle_reply(struct ceph_mds
 	if (head->safe) {
 		req->r_got_safe = true;
 		__unregister_request(mdsc, req);
-		complete_all(&req->r_safe_completion);
 
 		if (req->r_got_unsafe) {
 			/*


Patches currently in stable-queue which might be from zheng.z.yan@xxxxxxxxx are

queue-3.10/ceph-wake-up-safe-waiters-when-unregistering-request.patch
queue-3.10/ceph-cleanup-aborted-requests-when-re-sending-requests.patch
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