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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3758DC2B9F2 for ; Sat, 22 May 2021 20:15:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1D395611AB for ; Sat, 22 May 2021 20:15:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231449AbhEVUQp (ORCPT ); Sat, 22 May 2021 16:16:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:39416 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231447AbhEVUQo (ORCPT ); Sat, 22 May 2021 16:16:44 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DABA36108E; Sat, 22 May 2021 20:15:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1621714519; bh=Ou6Y3UUOgRcL8wtb1Y9MHvtjujkTMQYNhLLncINavqA=; h=Date:From:To:Subject:From; b=l3K0GiwWG+1zx9LrP4vfevoKNuU6HeiIrzvJyYjHKV//WRBx4X4GNu+Ka/1rKb++j lprg7sAPTa9fi5xDPFTzB2AQmHU/DXHzAKvo7Rxh4E833n+kxg96Z9YBHnHucY1z/w ZH/q4QCvJlJFme9CKdMXMO3GMruc7kwKeo/+0F1s= Date: Sat, 22 May 2021 13:15:18 -0700 From: akpm@linux-foundation.org To: david@redhat.com, dbueso@suse.de, geert@linux-m68k.org, ldufour@linux.ibm.com, Liam.Howlett@Oracle.com, mm-commits@vger.kernel.org Subject: + mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch added to -mm tree Message-ID: <20210522201518.4M89zc7rq%akpm@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm/migrate: use vma_lookup() in do_pages_stat_array() has been added to the -mm tree. Its filename is mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Liam Howlett Subject: mm/migrate: use vma_lookup() in do_pages_stat_array() Use vma_lookup() to find the VMA at a specific address. As vma_lookup() will return NULL if the address is not within any VMA, the start address no longer needs to be validated. Link: https://lkml.kernel.org/r/20210521174745.2219620-20-Liam.Howlett@Oracle.com Signed-off-by: Liam R. Howlett Reviewed-by: Laurent Dufour Acked-by: David Hildenbrand Acked-by: Davidlohr Bueso Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton --- mm/migrate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/migrate.c~mm-migrate-use-vma_lookup-in-do_pages_stat_array +++ a/mm/migrate.c @@ -1833,8 +1833,8 @@ static void do_pages_stat_array(struct m struct page *page; int err = -EFAULT; - vma = find_vma(mm, addr); - if (!vma || addr < vma->vm_start) + vma = vma_lookup(mm, addr); + if (!vma) goto set_status; /* FOLL_DUMP to ignore special (like zero) pages */ _ Patches currently in -mm which might be from liam.howlett@oracle.com are mm-mmap-introduce-unlock_range-for-code-cleanup.patch mm-mmap-use-find_vma_intersection-in-do_mmap-for-overlap.patch mm-add-vma_lookup-update-find_vma_intersection-comments.patch drm-i915-selftests-use-vma_lookup-in-__igt_mmap.patch arch-arc-kernel-troubleshoot-use-vma_lookup-instead-of-find_vma.patch arch-arm64-kvm-use-vma_lookup-instead-of-find_vma_intersection.patch arch-powerpc-kvm-book3s_hv_uvmem-use-vma_lookup-instead-of-find_vma_intersection.patch arch-powerpc-kvm-book3s-use-vma_lookup-in-kvmppc_hv_setup_htab_rma.patch arch-mips-kernel-traps-use-vma_lookup-instead-of-find_vma.patch arch-m68k-kernel-sys_m68k-use-vma_lookup-in-sys_cacheflush.patch x86-sgx-use-vma_lookup-in-sgx_encl_find.patch virt-kvm-use-vma_lookup-instead-of-find_vma_intersection.patch vfio-use-vma_lookup-instead-of-find_vma_intersection.patch net-ipv5-tcp-use-vma_lookup-in-tcp_zerocopy_receive.patch drm-amdgpu-use-vma_lookup-in-amdgpu_ttm_tt_get_user_pages.patch media-videobuf2-use-vma_lookup-in-get_vaddr_frames.patch misc-sgi-gru-grufault-use-vma_lookup-in-gru_find_vma.patch kernel-events-uprobes-use-vma_lookup-in-find_active_uprobe.patch lib-test_hmm-use-vma_lookup-in-dmirror_migrate.patch mm-ksm-use-vma_lookup-in-find_mergeable_vma.patch mm-migrate-use-vma_lookup-in-do_pages_stat_array.patch mm-mremap-use-vma_lookup-in-vma_to_resize.patch mm-memoryc-use-vma_lookup-in-__access_remote_vm.patch mm-mempolicy-use-vma_lookup-in-__access_remote_vm.patch