Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756480Ab3DXGtu (ORCPT ); Wed, 24 Apr 2013 02:49:50 -0400 Received: from mail-ie0-f172.google.com ([209.85.223.172]:46802 "EHLO mail-ie0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752340Ab3DXGtt convert rfc822-to-8bit (ORCPT ); Wed, 24 Apr 2013 02:49:49 -0400 Date: Wed, 24 Apr 2013 01:49:45 -0500 From: Rob Landley Subject: Re: [PATCH v2 6/6] add documentation on proc.txt To: Minchan Kim Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michael Kerrisk , Rik van Riel , Dave Hansen , Minchan Kim References: <1366767664-17541-1-git-send-email-minchan@kernel.org> <1366767664-17541-7-git-send-email-minchan@kernel.org> In-Reply-To: <1366767664-17541-7-git-send-email-minchan@kernel.org> (from minchan@kernel.org on Tue Apr 23 20:41:04 2013) X-Mailer: Balsa 2.4.11 Message-Id: <1366786185.18069.160@driftwood> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; DelSp=Yes; Format=Flowed Content-Disposition: inline Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2292 Lines: 67 On 04/23/2013 08:41:04 PM, Minchan Kim wrote: > This patch adds stuff about new reclaim field in proc.txt > > Cc: Rob Landley > Signed-off-by: Minchan Kim > --- > > Rob, I didn't add your Acked-by because interface was slight changed. > I hope you give Acke-by after review again. > Thanks. > > Documentation/filesystems/proc.txt | 22 ++++++++++++++++++++++ > mm/Kconfig | 7 +------ > 2 files changed, 23 insertions(+), 6 deletions(-) > > diff --git a/Documentation/filesystems/proc.txt > b/Documentation/filesystems/proc.txt > index 488c094..1411ad0 100644 > --- a/Documentation/filesystems/proc.txt > +++ b/Documentation/filesystems/proc.txt > @@ -136,6 +136,7 @@ Table 1-1: Process specific entries in /proc > maps Memory maps to executables and library files > (2.4) > mem Memory held by this process > root Link to the root directory of this process > + reclaim Reclaim pages in this process > stat Process status > statm Process memory status information > status Process status in human readable form > @@ -489,6 +490,27 @@ To clear the soft-dirty bit > > Any other value written to /proc/PID/clear_refs will have no effect. > > +The file /proc/PID/reclaim is used to reclaim pages in this process. > +To reclaim file-backed pages, > + > echo file > /proc/PID/reclaim > + > +To reclaim anonymous pages, > + > echo anon > /proc/PID/reclaim > + > +To reclaim all pages, > + > echo all > /proc/PID/reclaim > + > +Also, you can specify address range of process so part of address > space > +will be reclaimed. The format is following as > + > echo addr size-byte > /proc/PID/reclaim > + > +NOTE: addr should be page-aligned. And size in bytes should be a multiple of page size? > + > +Below is example which try to reclaim 2 pages from 0x100000. > + > +To reclaim both pages in address range, > + > echo $((1<<20) 8192 > /proc/PID/reclaim Would you like to balance your parentheses? Acked-by: Rob Landley Rob-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/