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block: remove QUEUE_FLAG_BYPASS and ->bypass

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Unused since the removal of the legacy request code.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2018-11-14 17:02:04 +01:00 • committed by Jens Axboe
parent e96c0d8336
commit 8f4236d900
6 changed files with 1 additions and 48 deletions
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6
include/linux/blk-cgroup.h
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@ -325,16 +325,12 @@ static inline struct blkcg_gq *__blkg_lookup(struct blkcg *blkcg,
* @q: request_queue of interest
*
* Lookup blkg for the @blkcg - @q pair. This function should be called
* under RCU read lock and is guaranteed to return %NULL if @q is bypassing
* - see blk_queue_bypass_start() for details.
* under RCU read loc.
*/
static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg,
struct request_queue *q)
{
WARN_ON_ONCE(!rcu_read_lock_held());
if (unlikely(blk_queue_bypass(q)))
return NULL;
return __blkg_lookup(blkcg, q, false);
}