Urgent nowait aio fixup for btrfs

Hi,

please pull the following patch that fixes a user-visible bug introduced by the nowait-aio patches merged in this cycle.

The branch is based on the closest merge in Jens' block changes that contained the nowait-aio patches, the patch does not apply to current btrfs branch. As the fix is urgent I send the pull request myself (it's all within btrfs code), I was not available to sync with Jens over the weekend.

The following changes since commit f95a0d6a95b12a79b7492da7ab687ae4cd741124:

Merge commit '8e8320c9315c' into for-4.13/block (2017-06-22 21:55:24 -0600)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git nowait-aio-btrfs-fixup

for you to fetch changes up to ff0fa73247e442518936baa43c3f037b17f10fa7:

btrfs: nowait aio: Correct assignment of pos (2017-07-10 15:29:44 +0200)

----------------------------------------------------------------
Goldwyn Rodrigues (1):
btrfs: nowait aio: Correct assignment of pos

 fs/btrfs/file.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)