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| author | Josef Bacik | 2010-02-02 21:51:14 +0100 |
|---|---|---|
| committer | Chris Mason | 2010-03-15 16:00:13 +0100 |
| commit | 5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60 (patch) | |
| tree | bc73836bf0bde137da48eaff72dae75ee729aaba /fs/btrfs/inode.c | |
| parent | Btrfs: cache extent state in find_delalloc_range (diff) | |
| download | kernel-qcow2-linux-5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60.tar.gz kernel-qcow2-linux-5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60.tar.xz kernel-qcow2-linux-5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60.zip | |
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 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 50ce8840a99b..1824dda1d351 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1698,11 +1698,10 @@ static int btrfs_finish_ordered_io(struct inode *inode, u64 start, u64 end) int compressed = 0; int ret; - ret = btrfs_dec_test_ordered_pending(inode, start, end - start + 1); + ret = btrfs_dec_test_ordered_pending(inode, &ordered_extent, start, + end - start + 1); if (!ret) return 0; - - ordered_extent = btrfs_lookup_ordered_extent(inode, start); BUG_ON(!ordered_extent); if (test_bit(BTRFS_ORDERED_NOCOW, &ordered_extent->flags)) { |