Re: [PATCH v2] blk-mq: fix missing blk_account_io_done() in error path

From: Jens Axboe
Date: Wed Jan 26 2022 - 08:34:58 EST


On Wed, 26 Jan 2022 09:21:32 +0800, Yu Kuai wrote:
> If blk_mq_request_issue_directly() failed from
> blk_insert_cloned_request(), the request will be accounted start.
> Currently, blk_insert_cloned_request() is only called by dm, and such
> request won't be accounted done by dm.
>
> In normal path, io will be accounted start from blk_mq_bio_to_request(),
> when the request is allocated, and such io will be accounted done from
> __blk_mq_end_request_acct() whether it succeeded or failed. Thus add
> blk_account_io_done() to fix the problem.
>
> [...]

Applied, thanks!

[1/1] blk-mq: fix missing blk_account_io_done() in error path
commit: 592ee1197f78b30bd60c87db9b6c8c045c8d8314

Best regards,
--
Jens Axboe