Patch "Btrfs: handle EAGAIN case properly in btrfs_drop_snapshot()" has been added to the 3.4-stable tree

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

    Btrfs: handle EAGAIN case properly in btrfs_drop_snapshot()

to the 3.4-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:
     btrfs-handle-eagain-case-properly-in-btrfs_drop_snapshot.patch
and it can be found in the queue-3.4 subdirectory.

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


>From 90515e7f5d7d24cbb2a4038a3f1b5cfa2921aa17 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx>
Date: Tue, 7 Jan 2014 17:26:58 +0800
Subject: Btrfs: handle EAGAIN case properly in btrfs_drop_snapshot()

From: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx>

commit 90515e7f5d7d24cbb2a4038a3f1b5cfa2921aa17 upstream.

We may return early in btrfs_drop_snapshot(), we shouldn't
call btrfs_std_err() for this case, fix it.

Signed-off-by: Wang Shilong <wangsl.fnst@xxxxxxxxxxxxxx>
Signed-off-by: Josef Bacik <jbacik@xxxxxx>
Signed-off-by: Chris Mason <clm@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/btrfs/extent-tree.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -7033,7 +7033,7 @@ out:
 	 */
 	if (root_dropped == false)
 		btrfs_add_dead_root(root);
-	if (err)
+	if (err && err != -EAGAIN)
 		btrfs_std_error(root->fs_info, err);
 	return err;
 }


Patches currently in stable-queue which might be from wangsl.fnst@xxxxxxxxxxxxxx are

queue-3.4/btrfs-handle-eagain-case-properly-in-btrfs_drop_snapshot.patch
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