linux-kernel - Re: [PATCH 0/6] new zram statistics reporting scheme

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Message-ID: <20150312050346.GB3508@swordfish>
Date:	Thu, 12 Mar 2015 14:03:46 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	ergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] new zram statistics reporting scheme

On (03/12/15 11:16), Sergey Senozhatsky wrote:
> >         cat /sys/block/zram/mem_used_max
> >         cat /sys/block/zram/mm_stat | awk friend
> > 
> > How about changing only writeable, not readable for duplicated stats
> > in /sys/block/zram? So, user will have writeable stat to set some
> > options in /sys/block/zram and readable stat to get some data in
> > /sys/block/zram/[io|mm]_stat if the stat is duplicated in both.
> 

did you mean:

-- attrs that are currently RW will eventually turn into WO. attr show()
   will be done by [mm|io]_stat file.

-- attrs that are currently RO will be removed. attr show() will be
   done by [mm|io]_stat file.

?

so, iow, rather than removing all duplicated attrs we remove only RO attrs
and keep previously RW attrs in write-only mode.

	-ss
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