Messages in this thread | | | Date | Tue, 29 Mar 2005 10:06:47 +0200 | From | Jens Axboe <> | Subject | Re: [patch] use cheaper elv_queue_empty when unplug a device |
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On Mon, Mar 28 2005, Chen, Kenneth W wrote: > This patch was posted last year and if I remember correctly, Jens said > he is OK with the patch. In function __generic_unplug_deivce(), kernel > can use a cheaper function elv_queue_empty() instead of more expensive > elv_next_request to find whether the queue is empty or not. blk_run_queue > can also made conditional on whether queue's emptiness before calling > request_fn(). > > > Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Looks good, thanks.
Signed-off-by: Jens Axboe <axboe@suse.de>
-- Jens Axboe
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