tree 76c27990626247613e9efa45b792d51ad79635d7
parent 4aff5e2333c9a1609662f2091f55c3f6fffdad36
author Jens Axboe <axboe@suse.de> 1154071388 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1159640816 +0200

[PATCH] elevator: move the backmerging logic into the elevator core

Right now, every IO scheduler implements its own backmerging (except for
noop, which does no merging). That results in duplicated code for
essentially the same operation, which is never a good thing. This patch
moves the backmerging out of the io schedulers and into the elevator
core. We save 1.6kb of text and as a bonus get backmerging for noop as
well. Win-win!

Signed-off-by: Jens Axboe <axboe@suse.de>