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| 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 /include/linux/blkdev.h | |
| parent | 8ba61435d73f2274e12d4d823fde06735e8f6a54 (diff) | |
| download | linux-a73f730d013ff2788389fd0c46ad3e5510f124e6.tar.gz linux-a73f730d013ff2788389fd0c46ad3e5510f124e6.tar.bz2 linux-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 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 783f97c14d0a..8c8dbc4738ea 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; |