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| author | Logan Gunthorpe <logang@deltatee.com> | 2019-10-11 01:36:26 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-10-11 01:52:31 +0200 |
| commit | 48d9b0d43105e0da2b7c135eedd24e51234fb5e4 (patch) | |
| tree | 66eb670f7ef6dfe762e969f8b2992aced40194a0 /block/blk-exec.c | |
| parent | blk-stat: Optimise blk_stat_add() (diff) | |
| download | linux-48d9b0d43105e0da2b7c135eedd24e51234fb5e4.tar.xz linux-48d9b0d43105e0da2b7c135eedd24e51234fb5e4.zip | |
block: account statistics for passthrough requests
Presently, passthrough requests are not accounted for because
blk_do_io_stat() expressly rejects them. Based on some digging
in the history, this doesn't seem like a concious decision but
one that evolved from the change from blk_fs_request() to
blk_rq_is_passthrough().
To support this, call blk_account_io_start() in blk_execute_rq_nowait()
and remove the passthrough check in blk_do_io_stat().
Link: https://lore.kernel.org/linux-block/20191010100526.GA27209@lst.de/
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-exec.c')
| -rw-r--r-- | block/blk-exec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/blk-exec.c b/block/blk-exec.c index 1db44ca0f4a6..e20a852ae432 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -55,6 +55,8 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, rq->rq_disk = bd_disk; rq->end_io = done; + blk_account_io_start(rq, true); + /* * don't check dying flag for MQ because the request won't * be reused after dying flag is set |