From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753648AbbFDETN (ORCPT <rfc822;w@1wt.eu>);
	Thu, 4 Jun 2015 00:19:13 -0400
Received: from mail-pa0-f48.google.com ([209.85.220.48]:33440 "EHLO
	mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1752182AbbFDESs (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Thu, 4 Jun 2015 00:18:48 -0400
Date: Thu, 4 Jun 2015 13:19:11 +0900
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH 03/10] zsmalloc: introduce zs_can_compact() function
Message-ID: <20150604041911.GI1951@swordfish>
References: <1432911928-14654-1-git-send-email-sergey.senozhatsky@gmail.com>
 <1432911928-14654-4-git-send-email-sergey.senozhatsky@gmail.com>
 <20150604025533.GE2241@blaptop>
 <20150604031514.GE1951@swordfish>
 <20150604033014.GG2241@blaptop>
 <20150604034230.GH1951@swordfish>
 <20150604035025.GH2241@blaptop>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20150604035025.GH2241@blaptop>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On (06/04/15 12:50), Minchan Kim wrote:
> > On (06/04/15 12:30), Minchan Kim wrote:
> > > 
> > > What scenario do you have a cocern?
> > > Could you describe this example more clear?
> > 
> > you mean "how is this even possible"?
> 
> No I meant. I couldn't understand your terms. Sorry.
> 
> What free-objs class capacity is?
> page1 is zspage?
> 
> Let's use consistent terms between us.
> 
> For example, maxobj-per-zspage is 4.
> A is allocated and used. X is allocated but not used.
> so we can draw a zspage below.
> 
>         AAXX
> 
> So we can draw several zspages linked list as below
> 
> AAXX - AXXX - AAAX
> 
> Could you describe your problem again?
> 
> Sorry.

My apologies.

yes, so:
-- free-objs class capacity -- how may unused allocated objects
we have in this class (in total).
-- page1..pageN -- zspages.

And I think that my example is utterly wrong and incorrect. My mistake.
Sorry for the noise.

	-ss