linux-kernel - Re: [PATCH 1/6] zram: remove `num

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Message-ID: <20150312011643.GA10820@blaptop>
Date:	Thu, 12 Mar 2015 10:16:44 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Subject: Re: [PATCH 1/6] zram: remove `num_migrated' device attr

On Wed, Mar 11, 2015 at 12:08:29AM +0900, Sergey Senozhatsky wrote:
> Remove sysfs `num_migrated' attribute. We are moving away from
> per-stat device attrs towards 3 stat files that will accumulate
> io and mm stats in a format similar to block layer statistics in
> /sys/block/<dev>/stat. That will be easier to use in user space,
> and reduce the number of syscalls needed to read zram device
> statistics.
> 
> `num_migrated' will return back in zram<id>/mm_stat file.
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

Acked-by: Minchan Kim <minchan@...nel.org>

> ---
>  Documentation/ABI/testing/sysfs-block-zram | 7 -------
>  drivers/block/zram/zram_drv.c              | 2 --
>  2 files changed, 9 deletions(-)
> 
> diff --git a/Documentation/ABI/testing/sysfs-block-zram b/Documentation/ABI/testing/sysfs-block-zram
> index bede902..91ad707 100644
> --- a/Documentation/ABI/testing/sysfs-block-zram
> +++ b/Documentation/ABI/testing/sysfs-block-zram
> @@ -149,10 +149,3 @@ Description:
>  		The compact file is write-only and trigger compaction for
>  		allocator zrm uses. The allocator moves some objects so that
>  		it could free fragment space.
> -
> -What:		/sys/block/zram<id>/num_migrated
> -Date:		August 2015
> -Contact:	Minchan Kim <minchan@...nel.org>
> -Description:
> -		The compact file is read-only and shows how many object
                     ^^^^^

Argh, I believe you will correct it in later patch.

Thanks.

-- 
Kind regards,
Minchan Kim
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