From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by kanga.kvack.org (Postfix) with ESMTP id A8CE56B0036 for ; Mon, 7 Oct 2013 15:06:26 -0400 (EDT) Received: by mail-pa0-f42.google.com with SMTP id lj1so7762214pab.15 for ; Mon, 07 Oct 2013 12:06:26 -0700 (PDT) Message-ID: <52530627.7010000@redhat.com> Date: Mon, 07 Oct 2013 15:06:15 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 36/63] mm: numa: Only trap pmd hinting faults if we would otherwise trap PTE faults References: <1381141781-10992-1-git-send-email-mgorman@suse.de> <1381141781-10992-37-git-send-email-mgorman@suse.de> In-Reply-To: <1381141781-10992-37-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: Peter Zijlstra , Srikar Dronamraju , Ingo Molnar , Andrea Arcangeli , Johannes Weiner , Linux-MM , LKML On 10/07/2013 06:29 AM, Mel Gorman wrote: > Base page PMD faulting is meant to batch handle NUMA hinting faults from > PTEs. However, even is no PTE faults would ever be handled within a > range the kernel still traps PMD hinting faults. This patch avoids the > overhead. > > Signed-off-by: Mel Gorman Acked-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