Btrfs: don't wait for ordered data outside desired range
authorFilipe David Borba Manana <fdmanana@gmail.com>
Wed, 6 Nov 2013 15:12:40 +0000 (15:12 +0000)
committerChris Mason <chris.mason@fusionio.com>
Thu, 21 Nov 2013 01:44:45 +0000 (20:44 -0500)
commitb52abf1e3b65b4fbd42b39412e040b561faec6a6
tree3cf4063b81a42bec54879a8c893495682ac6c097
parentb1a06a4b574996692b72b742bf6e6aa0c711a948
Btrfs: don't wait for ordered data outside desired range

In btrfs_wait_ordered_range(), if we found an extent to the left
of the start of our desired wait range and the last byte of that
extent is 1 less than the desired range's start, we would would
wait for the IO completion of that extent unnecessarily.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
fs/btrfs/ordered-data.c