From: Josef Bacik Date: Tue, 2 Feb 2010 20:51:14 +0000 (+0000) Subject: Btrfs: cache ordered extent when completing io X-Git-Tag: v2.6.34-rc2~21^2~13 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a1a3df1f6c86926cfe8657e6f9b4b4c2f467d60;p=pandora-kernel.git 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 Signed-off-by: Chris Mason --- Reading git-diff-tree failed