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block: move blk_throtl prototypes to block/blk.h

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blk_throtl interface is block internal and there's no reason to have
them in linux/blkdev.h.  Move them to block/blk.h.

This patch doesn't introduce any functional change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tejun Heo 2011-10-19 14:31:18 +02:00 committed by Jens Axboe
parent ece84241b9
commit bc9fcbf9cb
3 changed files with 15 additions and 15 deletions
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1
block/blk-throttle.c
View File

@ -10,6 +10,7 @@
#include <linux/bio.h>
#include <linux/blktrace_api.h>
#include "blk-cgroup.h"
#include "blk.h"
/* Max dispatch from a group in 1 round */
static int throtl_grp_quantum = 8;

15
block/blk.h
View File

@ -188,4 +188,17 @@ static inline int blk_do_io_stat(struct request *rq)
(rq->cmd_flags & REQ_DISCARD));
}
#endif
#ifdef CONFIG_BLK_DEV_THROTTLING
extern int blk_throtl_bio(struct request_queue *q, struct bio **bio);
extern int blk_throtl_init(struct request_queue *q);
extern void blk_throtl_exit(struct request_queue *q);
#else /* CONFIG_BLK_DEV_THROTTLING */
static inline int blk_throtl_bio(struct request_queue *q, struct bio **bio)
{
return 0;
}
static inline int blk_throtl_init(struct request_queue *q) { return 0; }
static inline void blk_throtl_exit(struct request_queue *q) { }
#endif /* CONFIG_BLK_DEV_THROTTLING */
#endif /* BLK_INTERNAL_H */

14
include/linux/blkdev.h
View File

@ -1197,20 +1197,6 @@ static inline uint64_t rq_io_start_time_ns(struct request *req)
}
#endif
#ifdef CONFIG_BLK_DEV_THROTTLING
extern int blk_throtl_init(struct request_queue *q);
extern void blk_throtl_exit(struct request_queue *q);
extern int blk_throtl_bio(struct request_queue *q, struct bio **bio);
#else /* CONFIG_BLK_DEV_THROTTLING */
static inline int blk_throtl_bio(struct request_queue *q, struct bio **bio)
{
return 0;
}
static inline int blk_throtl_init(struct request_queue *q) { return 0; }
static inline int blk_throtl_exit(struct request_queue *q) { return 0; }
#endif /* CONFIG_BLK_DEV_THROTTLING */
#define MODULE_ALIAS_BLOCKDEV(major,minor) \
MODULE_ALIAS("block-major-" __stringify(major) "-" __stringify(minor))
#define MODULE_ALIAS_BLOCKDEV_MAJOR(major) \