path: root/include/linux/blkdev.h
diff options
authorTejun Heo <tj@kernel.org>2011-12-14 00:33:37 +0100
committerJens Axboe <axboe@kernel.dk>2011-12-14 00:33:37 +0100
commita73f730d013ff2788389fd0c46ad3e5510f124e6 (patch)
tree773987c8cbec56745d46f46382ad268ed91adf98 /include/linux/blkdev.h
parent8ba61435d73f2274e12d4d823fde06735e8f6a54 (diff)
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 'include/linux/blkdev.h')
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 783f97c14d0..8c8dbc4738e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -311,6 +311,12 @@ struct request_queue {
unsigned long queue_flags;
+ * ida allocated id for this queue. Used to index queues from
+ * ioctx.
+ */
+ int id;
+ /*
* queue needs bounce pages for pages above this limit
gfp_t bounce_gfp;