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| author | Josef Bacik <josef@redhat.com> | 2010-02-02 20:51:14 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-03-15 11:00:13 -0400 |
| commit | 5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60 (patch) | |
| tree | bc73836bf0bde137da48eaff72dae75ee729aaba /mm/page_cgroup.c | |
| parent | c2a128d28a2e78e159e17e8c9274d0a9d9492555 (diff) | |
| download | linux-5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60.tar.bz2 | |
Btrfs: cache ordered extent when completing io
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: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'mm/page_cgroup.c')
0 files changed, 0 insertions, 0 deletions