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block: remove REQ_NO_TIMEOUT flag

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This was added for the 'magic' AEN requests in the NVMe driver that never
return.  We now handle them purely inside the driver and don't need this
core hack any more.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2015-11-07 09:39:28 +01:00 committed by Jens Axboe
parent f4800d6d15
commit bbc758ec04
3 changed files with 0 additions and 7 deletions
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2
block/blk-mq.c
View File

@ -603,8 +603,6 @@ static void blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
blk_mq_complete_request(rq, -EIO);
return;
}
if (rq->cmd_flags & REQ_NO_TIMEOUT)
return;
if (time_after_eq(jiffies, rq->deadline)) {
if (!blk_mark_rq_complete(rq))

3
block/blk-timeout.c
View File

@ -197,9 +197,6 @@ void blk_add_timer(struct request *req)
struct request_queue *q = req->q;
unsigned long expiry;
if (req->cmd_flags & REQ_NO_TIMEOUT)
return;
/* blk-mq has its own handler, so we don't need ->rq_timed_out_fn */
if (!q->mq_ops && !q->rq_timed_out_fn)
return;

2
include/linux/blk_types.h
View File

@ -188,7 +188,6 @@ enum rq_flag_bits {
__REQ_PM, /* runtime pm request */
__REQ_HASHED, /* on IO scheduler merge hash */
__REQ_MQ_INFLIGHT, /* track inflight for MQ */
__REQ_NO_TIMEOUT, /* requests may never expire */
__REQ_NR_BITS, /* stops here */
};
@ -242,7 +241,6 @@ enum rq_flag_bits {
#define REQ_PM (1ULL << __REQ_PM)
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
#define REQ_NO_TIMEOUT (1ULL << __REQ_NO_TIMEOUT)
typedef unsigned int blk_qc_t;
#define BLK_QC_T_NONE -1U