From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f72.google.com (mail-wm0-f72.google.com [74.125.82.72]) by kanga.kvack.org (Postfix) with ESMTP id BE19F6B0292 for ; Mon, 26 Jun 2017 11:27:37 -0400 (EDT) Received: by mail-wm0-f72.google.com with SMTP id c81so711382wmd.10 for ; Mon, 26 Jun 2017 08:27:37 -0700 (PDT) Received: from gum.cmpxchg.org (gum.cmpxchg.org. [85.214.110.215]) by mx.google.com with ESMTPS id j63si245665edb.381.2017.06.26.08.27.36 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 26 Jun 2017 08:27:36 -0700 (PDT) Date: Mon, 26 Jun 2017 11:27:28 -0400 From: Johannes Weiner Subject: Re: [PATCH] mm: document highmem_is_dirtyable sysctl Message-ID: <20170626152728.GA13340@cmpxchg.org> References: <20170626093200.18958-1-mhocko@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170626093200.18958-1-mhocko@kernel.org> Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Andrew Morton , Mel Gorman , linux-mm@kvack.org, LKML , Alkis Georgopoulos , Michal Hocko On Mon, Jun 26, 2017 at 11:32:00AM +0200, Michal Hocko wrote: > From: Michal Hocko > > It seems that there are still people using 32b kernels which a lot of > memory and the IO tend to suck a lot for them by default. Mostly because > writers are throttled too when the lowmem is used. We have > highmem_is_dirtyable to work around that issue but it seems we never > bothered to document it. Let's do it now, finally. > > Cc: Alkis Georgopoulos > Signed-off-by: Michal Hocko Acked-by: Johannes Weiner -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org