diff options
Diffstat (limited to 'block/blk-mq-tag.h')
| -rw-r--r-- | block/blk-mq-tag.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 947ba2c6148e..b602e3fa66ea 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -1,7 +1,24 @@ #ifndef INT_BLK_MQ_TAG_H #define INT_BLK_MQ_TAG_H -struct blk_mq_tags; +#include <linux/percpu_ida.h> + +/* + * Tag address space map. + */ +struct blk_mq_tags { + unsigned int nr_tags; + unsigned int nr_reserved_tags; + unsigned int nr_batch_move; + unsigned int nr_max_cache; + + struct percpu_ida free_tags; + struct percpu_ida reserved_tags; + + struct request **rqs; + struct list_head page_list; +}; + extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags, unsigned int reserved_tags, int node); extern void blk_mq_free_tags(struct blk_mq_tags *tags); |