diff options
Diffstat (limited to 'include/linux/blk-mq.h')
| -rw-r--r-- | include/linux/blk-mq.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index b6ee48740458..29c1a6e83814 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -67,6 +67,10 @@ typedef struct blk_mq_hw_ctx *(alloc_hctx_fn)(struct blk_mq_reg *,unsigned int); typedef void (free_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int); typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int); typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int); +typedef int (init_request_fn)(void *, struct blk_mq_hw_ctx *, + struct request *, unsigned int); +typedef void (exit_request_fn)(void *, struct blk_mq_hw_ctx *, + struct request *, unsigned int); struct blk_mq_ops { /* @@ -99,6 +103,14 @@ struct blk_mq_ops { */ init_hctx_fn *init_hctx; exit_hctx_fn *exit_hctx; + + /* + * Called for every command allocated by the block layer to allow + * the driver to set up driver specific data. + * Ditto for exit/teardown. + */ + init_request_fn *init_request; + exit_request_fn *exit_request; }; enum { @@ -118,8 +130,6 @@ enum { struct request_queue *blk_mq_init_queue(struct blk_mq_reg *, void *); int blk_mq_register_disk(struct gendisk *); void blk_mq_unregister_disk(struct gendisk *); -int blk_mq_init_commands(struct request_queue *, int (*init)(void *data, struct blk_mq_hw_ctx *, struct request *, unsigned int), void *data); -void blk_mq_free_commands(struct request_queue *, void (*free)(void *data, struct blk_mq_hw_ctx *, struct request *, unsigned int), void *data); void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule); |