From: Ryan Ding <ryan.ding@oracle.com>
Date: Fri, 4 Sep 2015 22:42:36 +0000 (-0700)
Subject: ocfs2: direct write will call ocfs2_rw_unlock() twice when doing aio+dio
X-Git-Tag: omap-for-v4.3/fixes-rc1~87^2~116
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa1057b3dec478b20c77bad07442318ae36d893c;p=pandora-kernel.git

ocfs2: direct write will call ocfs2_rw_unlock() twice when doing aio+dio

ocfs2_file_write_iter() is usng the wrong return value ('written').  This
will cause ocfs2_rw_unlock() be called both in write_iter & end_io,
triggering a BUG_ON.

This issue was introduced by commit 7da839c47589 ("ocfs2: use
__generic_file_write_iter()").

Orabug: 21612107
Fixes: 7da839c47589 ("ocfs2: use __generic_file_write_iter()")
Signed-off-by: Ryan Ding <ryan.ding@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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