From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA3A8C7618D for ; Thu, 6 Apr 2023 03:04:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234920AbjDFDEQ (ORCPT ); Wed, 5 Apr 2023 23:04:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235124AbjDFDDv (ORCPT ); Wed, 5 Apr 2023 23:03:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8611A9747 for ; Wed, 5 Apr 2023 20:03:42 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1C4446403D for ; Thu, 6 Apr 2023 03:03:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 760BCC433D2; Thu, 6 Apr 2023 03:03:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1680750221; bh=69JjmJOC5QXDTRdegH4XrCnFzqsJi3l4X8DxeiCsx3c=; h=Date:To:From:Subject:From; b=zwMIpKFFjjrQvAfK3kcwNkPz9Ujob7oUp98Kgh7OYj0xJCuQ/msf4gzXntqAw5Acs W0yM/LYnIP5lMFx/TKb3uqvNtSXW8fPQs5u4qVfhW/qkc2i6ifIQ81Q5gfgOhQBhlZ 4m0GDSd4JlbKIbljcgPympoLRtLy18YeZh+XOt/M= Date: Wed, 05 Apr 2023 20:03:40 -0700 To: mm-commits@vger.kernel.org, laurent.dufour@fr.ibm.com, 42.hyeyoo@gmail.com, surenb@google.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range.patch removed from -mm tree Message-Id: <20230406030341.760BCC433D2@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: mm/mremap: write-lock VMA while remapping it to a new address range has been removed from the -mm tree. Its filename was mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Suren Baghdasaryan Subject: mm/mremap: write-lock VMA while remapping it to a new address range Date: Mon, 27 Feb 2023 09:36:16 -0800 Write-lock VMA as locked before copying it and when copy_vma produces a new VMA. Link: https://lkml.kernel.org/r/20230227173632.3292573-18-surenb@google.com Signed-off-by: Suren Baghdasaryan Reviewed-by: Laurent Dufour Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Signed-off-by: Andrew Morton --- mm/mmap.c | 1 + mm/mremap.c | 1 + 2 files changed, 2 insertions(+) --- a/mm/mmap.c~mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range +++ a/mm/mmap.c @@ -3197,6 +3197,7 @@ struct vm_area_struct *copy_vma(struct v get_file(new_vma->vm_file); if (new_vma->vm_ops && new_vma->vm_ops->open) new_vma->vm_ops->open(new_vma); + vma_start_write(new_vma); if (vma_link(mm, new_vma)) goto out_vma_link; *need_rmap_locks = false; --- a/mm/mremap.c~mm-mremap-write-lock-vma-while-remapping-it-to-a-new-address-range +++ a/mm/mremap.c @@ -623,6 +623,7 @@ static unsigned long move_vma(struct vm_ return -ENOMEM; } + vma_start_write(vma); new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT); new_vma = copy_vma(&vma, new_addr, new_len, new_pgoff, &need_rmap_locks); _ Patches currently in -mm which might be from surenb@google.com are