diff options
| author |   Tejun Heo <tj@kernel.org> | 2011-12-14 00:33:37 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2011-12-14 00:33:37 +0100 |
| commit | a73f730d013ff2788389fd0c46ad3e5510f124e6 (patch) | |
| tree | 773987c8cbec56745d46f46382ad268ed91adf98 /block/blk.h | |
| parent | block: add missing blk_queue_dead() checks (diff) | |
| download | linux-dev-a73f730d013ff2788389fd0c46ad3e5510f124e6.tar.xz linux-dev-a73f730d013ff2788389fd0c46ad3e5510f124e6.zip | |
block, cfq: move cfqd->cic_index to q->id
cfq allocates per-queue id using ida and uses it to index cic radix
tree from io_context. Move it to q->id and allocate on queue init and
free on queue release. This simplifies cfq a bit and will allow for
further improvements of io context life-cycle management.
This patch doesn't introduce any functional difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
| -rw-r--r-- | block/blk.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h index e38691dbb329..aae4d88fc523 100644 --- a/block/blk.h +++ b/block/blk.h @@ -1,6 +1,8 @@ #ifndef BLK_INTERNAL_H #define BLK_INTERNAL_H +#include <linux/idr.h> + /* Amount of time in which a process may batch requests */ #define BLK_BATCH_TIME (HZ/50UL) @@ -9,6 +11,7 @@ extern struct kmem_cache *blk_requestq_cachep; extern struct kobj_type blk_queue_ktype; +extern struct ida blk_queue_ida; void init_request_from_bio(struct request *req, struct bio *bio); void blk_rq_bio_prep(struct request_queue *q, struct request *rq, |