From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ee0-f52.google.com (mail-ee0-f52.google.com [74.125.83.52]) by kanga.kvack.org (Postfix) with ESMTP id C73E96B00A4 for ; Mon, 9 Dec 2013 09:34:49 -0500 (EST) Received: by mail-ee0-f52.google.com with SMTP id d17so1584946eek.25 for ; Mon, 09 Dec 2013 06:34:49 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTP id m49si9746274eeg.157.2013.12.09.06.34.48 for ; Mon, 09 Dec 2013 06:34:48 -0800 (PST) Message-ID: <52A5D502.1080404@redhat.com> Date: Mon, 09 Dec 2013 09:34:42 -0500 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 06/18] mm: numa: Ensure anon_vma is locked to prevent parallel THP splits References: <1386572952-1191-1-git-send-email-mgorman@suse.de> <1386572952-1191-7-git-send-email-mgorman@suse.de> In-Reply-To: <1386572952-1191-7-git-send-email-mgorman@suse.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , Alex Thorlton , Linux-MM , LKML On 12/09/2013 02:09 AM, Mel Gorman wrote: > The anon_vma lock prevents parallel THP splits and any associated complexity > that arises when handling splits during THP migration. This patch checks > if the lock was successfully acquired and bails from THP migration if it > failed for any reason. > > Cc: stable@vger.kernel.org > Signed-off-by: Mel Gorman Reviewed-by: Rik van Riel -- All rights reversed -- 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