scsi: block: remove bidi support

Unused now, and another field in struct request bites the dust.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index fd1450d53f1c..21beb456b97a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -234,9 +234,6 @@ struct request {
          */
         rq_end_io_fn *end_io;
         void *end_io_data;
-
-        /* for bidi */
-        struct request *next_rq;
 };
 
 static inline bool blk_op_is_scsi(unsigned int op)
@@ -572,7 +569,6 @@ struct request_queue {
 
 #define QUEUE_FLAG_STOPPED      1       /* queue is stopped */
 #define QUEUE_FLAG_DYING        2       /* queue being torn down */
-#define QUEUE_FLAG_BIDI         4       /* queue supports bidi requests */
 #define QUEUE_FLAG_NOMERGES     5       /* disable merge attempts */
 #define QUEUE_FLAG_SAME_COMP    6       /* complete on same CPU-group */
 #define QUEUE_FLAG_FAIL_IO      7       /* fake timeout */
@@ -644,8 +640,6 @@ static inline bool blk_account_rq(struct request *rq)
         return (rq->rq_flags & RQF_STARTED) && !blk_rq_is_passthrough(rq);
 }
 
-#define blk_bidi_rq(rq)         ((rq)->next_rq != NULL)
-
 #define list_entry_rq(ptr)      list_entry((ptr), struct request, queuelist)
 
 #define rq_data_dir(rq)         (op_is_write(req_op(rq)) ? WRITE : READ)