From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f44.google.com (mail-pa0-f44.google.com [209.85.220.44]) by kanga.kvack.org (Postfix) with ESMTP id EB5206B00B6 for ; Wed, 27 May 2015 12:05:48 -0400 (EDT) Received: by pabru16 with SMTP id ru16so1117323pab.1 for ; Wed, 27 May 2015 09:05:48 -0700 (PDT) Received: from mail-pa0-x231.google.com (mail-pa0-x231.google.com. [2607:f8b0:400e:c03::231]) by mx.google.com with ESMTPS id hw10si20738936pbc.241.2015.05.27.09.05.47 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 May 2015 09:05:48 -0700 (PDT) Received: by pacwv17 with SMTP id wv17so1119320pac.2 for ; Wed, 27 May 2015 09:05:47 -0700 (PDT) Subject: Re: [RFC PATCH 2/2] arm64: Implement vmalloc based thread_info allocator Mime-Version: 1.0 (Apple Message framework v1283) Content-Type: text/plain; charset=us-ascii From: Jungseok Lee In-Reply-To: <3176422.FWpfrlzXOV@wuerfel> Date: Thu, 28 May 2015 01:05:42 +0900 Content-Transfer-Encoding: quoted-printable Message-Id: References: <1432483340-23157-1-git-send-email-jungseoklee85@gmail.com> <20150527041015.GB11609@blaptop> <20150527062250.GD3928@swordfish> <3176422.FWpfrlzXOV@wuerfel> Sender: owner-linux-mm@kvack.org List-ID: To: Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org, Sergey Senozhatsky , Minchan Kim , Catalin Marinas , barami97@gmail.com, Will Deacon , linux-kernel@vger.kernel.org, linux-mm@kvack.org On May 27, 2015, at 4:31 PM, Arnd Bergmann wrote: > On Wednesday 27 May 2015 15:22:50 Sergey Senozhatsky wrote: >> On (05/27/15 13:10), Minchan Kim wrote: >>> On Tue, May 26, 2015 at 08:29:59PM +0900, Jungseok Lee wrote: >>>>=20 >>>> if (test_thread_flag(TIF_MEMDIE) && !(gfp_mask & __GFP_NOFAIL)) >>>> goto nopage; >>>>=20 >>>> IMHO, a reclaim operation would be not needed in this context if = memory is >>>> allocated from vmalloc space. It means there is no need to traverse = shrinker list.=20 >>>=20 >>> For making fork successful with using vmalloc, it's bandaid. >=20 > Right. Thanks for a clear feedback! It sounds like Catalin's idea should be considered seriously in ARM64 = perspective. Best Regards Jungseok Lee= -- 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