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authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>2020-05-27 07:24:15 +0200
committerJens Axboe <axboe@kernel.dk>2020-05-27 05:21:23 -0600
commitb9c54f5660e7eff10dd2ddd1eae554573105b15d (patch)
tree905b560633e7b217ed955451ba31932d38e6cc8c /block
parent58d4f14fc30ac26288cfed74d7e566921c22cf59 (diff)
downloadlinux-b9c54f5660e7eff10dd2ddd1eae554573105b15d.tar.bz2
block: account merge of two requests
Also rename blk_account_io_merge() into blk_account_io_merge_request() to distinguish it from merging request and bio. [hch: rebased] Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-merge.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 6a4538d39efd..c3beae5c1be7 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -669,18 +669,16 @@ void blk_rq_set_mixed_merge(struct request *rq)
rq->rq_flags |= RQF_MIXED_MERGE;
}
-static void blk_account_io_merge(struct request *req)
+static void blk_account_io_merge_request(struct request *req)
{
if (blk_do_io_stat(req)) {
- struct hd_struct *part;
-
part_stat_lock();
- part = req->part;
-
- hd_struct_put(part);
+ part_stat_inc(req->part, merges[op_stat_group(req_op(req))]);
+ hd_struct_put(req->part);
part_stat_unlock();
}
}
+
/*
* Two cases of handling DISCARD merge:
* If max_discard_segments > 1, the driver takes every bio
@@ -792,7 +790,7 @@ static struct request *attempt_merge(struct request_queue *q,
/*
* 'next' is going away, so update stats accordingly
*/
- blk_account_io_merge(next);
+ blk_account_io_merge_request(next);
/*
* ownership of bio passed from next to req, return 'next' for