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>

1 files changed, 0 insertions, 2 deletions

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)