tree c499b53c052a6e515ec232fdbde4537f20f1d23d
parent e6a1c874a064e7d07f24986aba7cd537b7f4a25d
author Jens Axboe <axboe@suse.de> 1153579711 +0200
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1159640975 +0200

[PATCH] cfq-iosched: cleanups, fixes, dead code removal

A collection of little fixes and cleanups:

- We don't use the 'queued' sysfs exported attribute, since the
  may_queue() logic was rewritten. So kill it.

- Remove dead defines.

- cfq_set_active_queue() can be rewritten cleaner with else if conditions.

- Several places had cfq_exit_cfqq() like logic, abstract that out and
  use that.

- Annotate the cfqq kmem_cache_alloc() so the allocator knows that this
  is a repeat allocation if it fails with __GFP_WAIT set. Allows the
  allocator to start freeing some memory, if needed. CFQ already loops for
  this condition, so might as well pass the hint down.

- Remove cfqd->rq_starved logic. It's not needed anymore after we dropped
  the crq allocation in cfq_set_request().

- Remove uneeded parameter passing.

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