From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f179.google.com (mail-pd0-f179.google.com [209.85.192.179]) by kanga.kvack.org (Postfix) with ESMTP id 286C66B0069 for ; Mon, 13 Oct 2014 12:06:28 -0400 (EDT) Received: by mail-pd0-f179.google.com with SMTP id r10so5751294pdi.24 for ; Mon, 13 Oct 2014 09:06:27 -0700 (PDT) Received: from shards.monkeyblade.net (shards.monkeyblade.net. [2001:4f8:3:36:211:85ff:fe63:a549]) by mx.google.com with ESMTP id sn9si10724953pac.108.2014.10.13.09.06.22 for ; Mon, 13 Oct 2014 09:06:22 -0700 (PDT) Date: Mon, 13 Oct 2014 12:06:18 -0400 (EDT) Message-Id: <20141013.120618.1470323732942174784.davem@davemloft.net> Subject: Re: [PATCH V4 1/6] mm: Introduce a general RCU get_user_pages_fast. From: David Miller In-Reply-To: <20141013114428.GA28113@linaro.org> References: <87d29w1rf7.fsf@linux.vnet.ibm.com> <20141013.012146.992477977260812742.davem@davemloft.net> <20141013114428.GA28113@linaro.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: steve.capper@linaro.org Cc: aneesh.kumar@linux.vnet.ibm.com, aarcange@redhat.com, linux-arm-kernel@lists.infradead.org, catalin.marinas@arm.com, linux@arm.linux.org.uk, linux-arch@vger.kernel.org, linux-mm@kvack.org, will.deacon@arm.com, gary.robertson@linaro.org, christoffer.dall@linaro.org, peterz@infradead.org, anders.roxell@linaro.org, akpm@linux-foundation.org, dann.frazier@canonical.com, mark.rutland@arm.com, mgorman@suse.de, hughd@google.com From: Steve Capper Date: Mon, 13 Oct 2014 12:44:28 +0100 > Also, as a heads up for Sparc. I don't see any definition of > __get_user_pages_fast. Does this mean that a futex on THP tail page > can cause an infinite loop? I have no idea, I didn't realize this was required to be implemented. -- 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