diff options
| author | Christoph Hellwig <hch@lst.de> | 2014-09-13 16:40:08 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-09-22 12:00:07 -0600 |
| commit | bf57229745f849e500ba69ff91e35bc8160a7373 (patch) | |
| tree | 9b90e6c5b32e96b082ad5c135c22de2c9cc82b77 /include | |
| parent | 6d11fb454b161a4565c57be6f1c5527235741003 (diff) | |
| download | linux-bf57229745f849e500ba69ff91e35bc8160a7373.tar.gz linux-bf57229745f849e500ba69ff91e35bc8160a7373.tar.bz2 linux-bf57229745f849e500ba69ff91e35bc8160a7373.zip | |
blk-mq: remove REQ_END
Pass an explicit parameter for the last request in a batch to ->queue_rq
instead of using a request flag. Besides being a cleaner and non-stateful
interface this is also required for the next patch, which fixes the blk-mq
I/O submission code to not start a time too early.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/blk-mq.h | 2 | ||||
| -rw-r--r-- | include/linux/blk_types.h | 2 |
2 files changed, 1 insertions, 3 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index a1e31f274fcd..9c4e306a9217 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -77,7 +77,7 @@ struct blk_mq_tag_set { struct list_head tag_list; }; -typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *); +typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *, bool); typedef struct blk_mq_hw_ctx *(map_queue_fn)(struct request_queue *, const 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); diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 66c2167f04a9..bb7d66460e7a 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -188,7 +188,6 @@ enum rq_flag_bits { __REQ_MIXED_MERGE, /* merge of different types, fail separately */ __REQ_KERNEL, /* direct IO to kernel pages */ __REQ_PM, /* runtime pm request */ - __REQ_END, /* last of chain of requests */ __REQ_HASHED, /* on IO scheduler merge hash */ __REQ_MQ_INFLIGHT, /* track inflight for MQ */ __REQ_NR_BITS, /* stops here */ @@ -242,7 +241,6 @@ enum rq_flag_bits { #define REQ_SECURE (1ULL << __REQ_SECURE) #define REQ_KERNEL (1ULL << __REQ_KERNEL) #define REQ_PM (1ULL << __REQ_PM) -#define REQ_END (1ULL << __REQ_END) #define REQ_HASHED (1ULL << __REQ_HASHED) #define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT) |