Contributors: 15
Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
Jens Axboe |
226 |
58.55% |
13 |
33.33% |
John Garry |
44 |
11.40% |
6 |
15.38% |
Omar Sandoval |
39 |
10.10% |
2 |
5.13% |
Sagi Grimberg |
23 |
5.96% |
1 |
2.56% |
Sam Bradshaw |
14 |
3.63% |
1 |
2.56% |
Christoph Hellwig |
11 |
2.85% |
4 |
10.26% |
Ming Lei |
5 |
1.30% |
2 |
5.13% |
Martin K. Petersen |
5 |
1.30% |
3 |
7.69% |
Lei Ming |
4 |
1.04% |
1 |
2.56% |
Dave Olien |
4 |
1.04% |
1 |
2.56% |
Stephen Rothwell |
4 |
1.04% |
1 |
2.56% |
Liu Song |
3 |
0.78% |
1 |
2.56% |
Shaohua Li |
2 |
0.52% |
1 |
2.56% |
Greg Kroah-Hartman |
1 |
0.26% |
1 |
2.56% |
Keith Busch |
1 |
0.26% |
1 |
2.56% |
Total |
386 |
|
39 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef INT_BLK_MQ_TAG_H
#define INT_BLK_MQ_TAG_H
struct blk_mq_alloc_data;
extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags,
unsigned int reserved_tags,
int node, int alloc_policy);
extern void blk_mq_free_tags(struct blk_mq_tags *tags);
extern int blk_mq_init_bitmaps(struct sbitmap_queue *bitmap_tags,
struct sbitmap_queue *breserved_tags,
unsigned int queue_depth,
unsigned int reserved,
int node, int alloc_policy);
extern unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
unsigned long blk_mq_get_tags(struct blk_mq_alloc_data *data, int nr_tags,
unsigned int *offset);
extern void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
unsigned int tag);
void blk_mq_put_tags(struct blk_mq_tags *tags, int *tag_array, int nr_tags);
extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx,
struct blk_mq_tags **tags,
unsigned int depth, bool can_grow);
extern void blk_mq_tag_resize_shared_tags(struct blk_mq_tag_set *set,
unsigned int size);
extern void blk_mq_tag_update_sched_shared_tags(struct request_queue *q);
extern void blk_mq_tag_wakeup_all(struct blk_mq_tags *tags, bool);
void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_tag_iter_fn *fn,
void *priv);
void blk_mq_all_tag_iter(struct blk_mq_tags *tags, busy_tag_iter_fn *fn,
void *priv);
static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt,
struct blk_mq_hw_ctx *hctx)
{
if (!hctx)
return &bt->ws[0];
return sbq_wait_ptr(bt, &hctx->wait_index);
}
enum {
BLK_MQ_NO_TAG = -1U,
BLK_MQ_TAG_MIN = 1,
BLK_MQ_TAG_MAX = BLK_MQ_NO_TAG - 1,
};
extern void __blk_mq_tag_busy(struct blk_mq_hw_ctx *);
extern void __blk_mq_tag_idle(struct blk_mq_hw_ctx *);
static inline void blk_mq_tag_busy(struct blk_mq_hw_ctx *hctx)
{
if (hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED)
__blk_mq_tag_busy(hctx);
}
static inline void blk_mq_tag_idle(struct blk_mq_hw_ctx *hctx)
{
if (!(hctx->flags & BLK_MQ_F_TAG_QUEUE_SHARED))
return;
__blk_mq_tag_idle(hctx);
}
static inline bool blk_mq_tag_is_reserved(struct blk_mq_tags *tags,
unsigned int tag)
{
return tag < tags->nr_reserved_tags;
}
#endif