tree f7a3e55857e917bb129d16d27458c2ff897a1864
parent e4313dd423148fa729571b50c06cbc0bedf5c494
author Jens Axboe <axboe@suse.de> 1153278432 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1159640977 +0200

[PATCH] cfq-iosched: use new io context counting mechanism

It's ok if the read path is a lot more costly, as long as inc/dec is
really cheap. The inc/dec will happen for each created/freed io context,
while the reading only happens when a disk queue exits.

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