block: remove QUEUE_FLAG_BYPASS and ->bypass

Unused since the removal of the legacy request code.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 1 insertions, 8 deletions

diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 1b299e025e83..2c68efc603bd 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -325,16 +325,12 @@ static inline struct blkcg_gq *__blkg_lookup(struct blkcg *blkcg,
  * @q: request_queue of interest
  *
  * Lookup blkg for the @blkcg - @q pair.  This function should be called
- * under RCU read lock and is guaranteed to return %NULL if @q is bypassing
- * - see blk_queue_bypass_start() for details.
+ * under RCU read loc.
  */
 static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg,
                                            struct request_queue *q)
 {
         WARN_ON_ONCE(!rcu_read_lock_held());
-
-        if (unlikely(blk_queue_bypass(q)))
-                return NULL;
         return __blkg_lookup(blkcg, q, false);
 }
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index c961329be96b..dd1e53fd4acf 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -548,7 +548,6 @@ struct request_queue {
 
         struct mutex            sysfs_lock;
 
-        int                     bypass_depth;
         atomic_t                mq_freeze_depth;
 
 #if defined(CONFIG_BLK_DEV_BSG)
@@ -586,7 +585,6 @@ struct request_queue {
 
 #define QUEUE_FLAG_STOPPED      1       /* queue is stopped */
 #define QUEUE_FLAG_DYING        2       /* queue being torn down */
-#define QUEUE_FLAG_BYPASS       3       /* act as dumb FIFO queue */
 #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 */
@@ -630,7 +628,6 @@ bool blk_queue_flag_test_and_clear(unsigned int flag, struct request_queue *q);
 #define blk_queue_stopped(q)    test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
 #define blk_queue_dying(q)      test_bit(QUEUE_FLAG_DYING, &(q)->queue_flags)
 #define blk_queue_dead(q)       test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags)
-#define blk_queue_bypass(q)     test_bit(QUEUE_FLAG_BYPASS, &(q)->queue_flags)
 #define blk_queue_init_done(q)  test_bit(QUEUE_FLAG_INIT_DONE, &(q)->queue_flags)
 #define blk_queue_nomerges(q)   test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
 #define blk_queue_noxmerges(q)  \