[ 3.8.y.z extended stable ] Patch "nilfs2: remove double bio_put() in nilfs_end_bio_write() for" has been added to staging queue

[Kamal Mostafa]

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

    nilfs2: remove double bio_put() in nilfs_end_bio_write() for

to the linux-3.8.y-queue branch of the 3.8.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-3.8.y-queue

This patch is scheduled to be released in version 3.8.13.8.

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

For more information about the 3.8.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From ee23f862dca1e731115fc1b68fff85f1c76c5b5d Mon Sep 17 00:00:00 2001
From: Vyacheslav Dubeyko <slava at dubeyko.com>
Date: Thu, 22 Aug 2013 16:35:44 -0700
Subject: nilfs2: remove double bio_put() in nilfs_end_bio_write() for
 BIO_EOPNOTSUPP error

commit 2df37a19c686c2d7c4e9b4ce1505b5141e3e5552 upstream.

Remove double call of bio_put() in nilfs_end_bio_write() for the case of
BIO_EOPNOTSUPP error detection.  The issue was found by Dan Carpenter
and he suggests first version of the fix too.

Signed-off-by: Vyacheslav Dubeyko <slava at dubeyko.com>
Reported-by: Dan Carpenter <dan.carpenter at oracle.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke at lab.ntt.co.jp>
Tested-by: Ryusuke Konishi <konishi.ryusuke at lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 fs/nilfs2/segbuf.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index dc9a913..5bacf46 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -345,8 +345,7 @@ static void nilfs_end_bio_write(struct bio *bio, int err)

 	if (err == -EOPNOTSUPP) {
 		set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);
-		bio_put(bio);
-		/* to be detected by submit_seg_bio() */
+		/* to be detected by nilfs_segbuf_submit_bio() */
 	}

 	if (!uptodate)
--
1.8.1.2