Re: [PATCH 0/6] blk: introduce generic io stat accounting help function

From: Jens Axboe
Date: Mon Nov 24 2014 - 10:04:06 EST


On 11/23/2014 08:05 PM, Gu Zheng wrote:
Many block drivers accounting io stat based on bio (e.g. NVMe...),
the blk_account_io_start/end() which is based on request
does not make sense to them, so here we introduce the similar help
function named generic_start/end_io_acct base on raw sectors, and it can
simplify some driver's open io accounting code.

Gu Zheng (6):
blk: introduce generic io stat accounting help function
NVMe: use generic io stat accounting functions to simplify
nvme_start/end_io_acct
md/bcache: use generic io stats accounting functions to simplify io
stat accounting
drbd: use generic io stats accounting functions to simplify io stat
accounting
md: use generic io stats accounting functions to simplify io stat
accounting
block/rsxx: use generic io stats accounting functions to simplify io
stat accounting

Thanks, this looks good. I'll apply it, except 2/6, since nvme no longer uses them.

--
Jens Axboe

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