A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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block, cfq: move cfqd->cic_index to q->id

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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 <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2011-12-14 00:33:37 +01:00 • committed by Jens Axboe
commit a73f730d01
5 changed files with 32 additions and 55 deletions
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2
block/blk-sysfs.c
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@ -494,6 +494,8 @@ static void blk_release_queue(struct kobject *kobj)
blk_trace_shutdown(q);
bdi_destroy(&q->backing_dev_info);
ida_simple_remove(&blk_queue_ida, q->id);
kmem_cache_free(blk_requestq_cachep, q);
}