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authorJens Axboe <axboe@kernel.dk>2021-10-16 17:27:20 -0600
committerJens Axboe <axboe@kernel.dk>2021-10-18 14:39:48 -0600
commit9a14d6ce4135fa72705a926c894218a0d6988924 (patch)
treed51112511805330c8d7ac424a235c3d635e577ca /block/blk-mq-sched.c
parent128459062bc994355027e190477c432ec5b5638a (diff)
block: remove debugfs blk_mq_ctx dispatched/merged/completed attributes
These were added as part of early days debugging for blk-mq, and they are not really useful anymore. Rather than spend cycles updating them, just get rid of them. As a bonus, this shrinks the per-cpu software queue size from 256b to 192b. That's a whole cacheline less. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-sched.c')
-rw-r--r--block/blk-mq-sched.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index efc1374b8831..e85b7556b096 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -387,13 +387,10 @@ bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio,
* potentially merge with. Currently includes a hand-wavy stop
* count of 8, to not spend too much time checking for merges.
*/
- if (blk_bio_list_merge(q, &ctx->rq_lists[type], bio, nr_segs)) {
- ctx->rq_merged++;
+ if (blk_bio_list_merge(q, &ctx->rq_lists[type], bio, nr_segs))
ret = true;
- }
spin_unlock(&ctx->lock);
-
return ret;
}