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Date: Mon, 12 Dec 2022 15:01:20 -0800
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Chao Yu <chao@...nel.org>
Cc: Yangtao Li <frank.li@...o.com>,
linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: add iostat support for FS_DISCARD_IO
Please check the previous comment.
On 12/12, Chao Yu wrote:
> On 2022/12/12 13:47, Yangtao Li wrote:
> > Just like other data we count uses the number of bytes as the basic
> > unit, but discard uses the number of cmds as the statistical unit. In
> > fact, the discard command contains the number of blocks. In order to
> > avoid breaking its usage of application, let's keeping FS_DISCARD
> > as it is, and add FS_DISCARD_IO to account discard bytes.
> >
> > Suggested-by: Chao Yu <chao@...nel.org>
> > Signed-off-by: Yangtao Li <frank.li@...o.com>
>
> Reviewed-by: Chao Yu <chao@...nel.org>
>
> Thanks,
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