From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx198.postini.com [74.125.245.198]) by kanga.kvack.org (Postfix) with SMTP id 623956B0034 for ; Tue, 11 Jun 2013 12:04:11 -0400 (EDT) Message-ID: <51B74A7A.1040707@sr71.net> Date: Tue, 11 Jun 2013 09:04:10 -0700 From: Dave Hansen MIME-Version: 1.0 Subject: Re: [PATCH 2/8] thp, mm: avoid PageUnevictable on active/inactive lru lists References: <1370964919-16187-1-git-send-email-kirill.shutemov@linux.intel.com> <1370964919-16187-3-git-send-email-kirill.shutemov@linux.intel.com> In-Reply-To: <1370964919-16187-3-git-send-email-kirill.shutemov@linux.intel.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: "Kirill A. Shutemov" Cc: Andrea Arcangeli , Andrew Morton , Al Viro , Hugh Dickins , Wu Fengguang , Jan Kara , Mel Gorman , linux-mm@kvack.org, Andi Kleen , Matthew Wilcox , "Kirill A. Shutemov" , Hillf Danton , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org On 06/11/2013 08:35 AM, Kirill A. Shutemov wrote: > active/inactive lru lists can contain unevicable pages (i.e. ramfs pages > that have been placed on the LRU lists when first allocated), but these > pages must not have PageUnevictable set - otherwise shrink_[in]active_list > goes crazy: I think it's also important here to note if this is a bug that can be hit _currently_, or if this really is just a preparatory patch for transparent huge page cache. >>From what I can see, this is _needed_ preparatory work, but it can also stand on its own because it simplifies things. It should go in sooner rather than later. -- 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