• Josef Bacik's avatar
    Btrfs: cache ordered extent when completing io · 5a1a3df1
    Josef Bacik authored
    When finishing io we run btrfs_dec_test_ordered_pending, and then immediately
    run btrfs_lookup_ordered_extent, but btrfs_dec_test_ordered_pending does that
    already, so we're searching twice when we don't have to.  This patch lets us
    pass a btrfs_ordered_extent in to btrfs_dec_test_ordered_pending so if we do
    complete io on that ordered extent we can just use the one we found then instead
    of having to do another btrfs_lookup_ordered_extent.  This made my fio job with
    the other patch go from 24 mb/s to 29 mb/s.
    Signed-off-by: default avatarJosef Bacik <josef@redhat.com>
    Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>