From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752934AbbCLFDl (ORCPT ); Thu, 12 Mar 2015 01:03:41 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:40067 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751494AbbCLFDj (ORCPT ); Thu, 12 Mar 2015 01:03:39 -0400 Date: Thu, 12 Mar 2015 14:03:46 +0900 From: Sergey Senozhatsky To: Minchan Kim Cc: ergey Senozhatsky , Sergey Senozhatsky , Andrew Morton , Nitin Gupta , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/6] new zram statistics reporting scheme Message-ID: <20150312050346.GB3508@swordfish> References: <1426000114-4471-1-git-send-email-sergey.senozhatsky@gmail.com> <20150312015558.GG10820@blaptop> <20150312021609.GA3508@swordfish> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150312021609.GA3508@swordfish> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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