From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-f177.google.com (mail-ig0-f177.google.com [209.85.213.177]) by kanga.kvack.org (Postfix) with ESMTP id 56B83680F84 for ; Mon, 11 Jan 2016 20:39:29 -0500 (EST) Received: by mail-ig0-f177.google.com with SMTP id mw1so122177233igb.1 for ; Mon, 11 Jan 2016 17:39:29 -0800 (PST) Received: from userp1040.oracle.com (userp1040.oracle.com. [156.151.31.81]) by mx.google.com with ESMTPS id e91si4362141ioi.138.2016.01.11.17.39.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Jan 2016 17:39:28 -0800 (PST) Subject: Re: [PATCH] mm/hugetlbfs: Unmap pages if page fault raced with hole punch References: <1452119824-32715-1-git-send-email-mike.kravetz@oracle.com> <20160111143548.f6dc084529530b05b03b8f0c@linux-foundation.org> <56943D00.7090405@oracle.com> <20160111162931.0bea916e.akpm@linux-foundation.org> From: Mike Kravetz Message-ID: <569458AB.5000102@oracle.com> Date: Mon, 11 Jan 2016 17:36:43 -0800 MIME-Version: 1.0 In-Reply-To: <20160111162931.0bea916e.akpm@linux-foundation.org> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Hugh Dickins , Naoya Horiguchi , Hillf Danton , Davidlohr Bueso , Dave Hansen On 01/11/2016 04:29 PM, Andrew Morton wrote: > On Mon, 11 Jan 2016 15:38:40 -0800 Mike Kravetz wrote: > >> On 01/11/2016 02:35 PM, Andrew Morton wrote: >>> On Wed, 6 Jan 2016 14:37:04 -0800 Mike Kravetz wrote: >>>> The (unmodified) routine hugetlb_vmdelete_list was moved ahead of >>>> remove_inode_hugepages to satisfy the new reference. >>>> > > I'll mark this patch as "pending, awaiting Mike's go-ahead". > When this patch was originally submitted, bugs were discovered in the hugetlb_vmdelete_list routine. So, the patch "Fix bugs in hugetlb_vmtruncate_list" was created. I have retested the changes in this patch specifically dealing with page fault/hole punch race on top of the new hugetlb_vmtruncate_list routine. Everything looks good. How would you like to proceed with the patch? - Should I create a series with the hugetlb_vmtruncate_list split out? - Should I respin with hugetlb_vmtruncate_list patch applied? Just let me know what is easiest/best for you. -- Mike Kravetz -- 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