block: kill request ->cpu member

This was used for completion placement for the legacy path,
but for mq we have rq->mq_ctx->cpu for that. Add a helper
to get the request CPU assignment, as the mq_ctx type is
private to blk-mq.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 9dd574e5436a..d83a26fb37e5 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -300,6 +300,8 @@ void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);
 
 void blk_mq_quiesce_queue_nowait(struct request_queue *q);
 
+unsigned int blk_mq_rq_cpu(struct request *rq);
+
 /**
  * blk_mq_mark_complete() - Set request state to complete
  * @rq: request to set to complete state
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index d4104844d6bb..c8fa4d3d7fee 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -130,7 +130,6 @@ struct request {
         struct request_queue *q;
         struct blk_mq_ctx *mq_ctx;
 
-        int cpu;
         unsigned int cmd_flags;         /* op and common flags */
         req_flags_t rq_flags;
 
@@ -669,7 +668,6 @@ static inline bool blk_account_rq(struct request *rq)
         return (rq->rq_flags & RQF_STARTED) && !blk_rq_is_passthrough(rq);
 }
 
-#define blk_rq_cpu_valid(rq)    ((rq)->cpu != -1)
 #define blk_bidi_rq(rq)         ((rq)->next_rq != NULL)
 
 #define list_entry_rq(ptr)      list_entry((ptr), struct request, queuelist)