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blk-mq: add a flags parameter to blk_mq_alloc_request

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We already have the reserved flag, and a nowait flag awkwardly encoded as
a gfp_t.  Add a real flags argument to make the scheme more extensible and
allow for a nicer calling convention.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig
2015-11-26 09:13:05 +01:00
committed by Jens Axboe
parent d7cf931dd9
commit 6f3b0e8bcf
11 changed files with 42 additions and 42 deletions
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2
include/linux/blkdev.h
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@@ -794,7 +794,7 @@ extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t,
extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
struct scsi_ioctl_command __user *);
extern int blk_queue_enter(struct request_queue *q, gfp_t gfp);
extern int blk_queue_enter(struct request_queue *q, bool nowait);
extern void blk_queue_exit(struct request_queue *q);
extern void blk_start_queue(struct request_queue *q);
extern void blk_stop_queue(struct request_queue *q);