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block: pass in queue to inflight accounting

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No functional change in this patch, just in preparation for
basing the inflight mechanism on the queue in question.

Reviewed-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe
2017-06-30 21:55:08 -06:00
parent 7f5562d5ec
commit d62e26b3ff
13 changed files with 64 additions and 49 deletions
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14
include/linux/genhd.h
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@@ -362,23 +362,27 @@ static inline void free_part_stats(struct hd_struct *part)
#define part_stat_sub(cpu, gendiskp, field, subnd) \
part_stat_add(cpu, gendiskp, field, -subnd)
static inline void part_inc_in_flight(struct hd_struct *part, int rw)
static inline void part_inc_in_flight(struct request_queue *q,
struct hd_struct *part, int rw)
{
atomic_inc(&part->in_flight[rw]);
if (part->partno)
atomic_inc(&part_to_disk(part)->part0.in_flight[rw]);
}
static inline void part_dec_in_flight(struct hd_struct *part, int rw)
static inline void part_dec_in_flight(struct request_queue *q,
struct hd_struct *part, int rw)
{
atomic_dec(&part->in_flight[rw]);
if (part->partno)
atomic_dec(&part_to_disk(part)->part0.in_flight[rw]);
}
static inline int part_in_flight(struct hd_struct *part)
static inline int part_in_flight(struct request_queue *q,
struct hd_struct *part)
{
return atomic_read(&part->in_flight[0]) + atomic_read(&part->in_flight[1]);
return atomic_read(&part->in_flight[0]) +
atomic_read(&part->in_flight[1]);
}
static inline struct partition_meta_info *alloc_part_info(struct gendisk *disk)
@@ -395,7 +399,7 @@ static inline void free_part_info(struct hd_struct *part)
}
/* block/blk-core.c */
extern void part_round_stats(int cpu, struct hd_struct *part);
extern void part_round_stats(struct request_queue *q, int cpu, struct hd_struct *part);
/* block/genhd.c */
extern void device_add_disk(struct device *parent, struct gendisk *disk);