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 DFD48C4708E for ; Fri, 6 Jan 2023 00:37:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236398AbjAFAhA (ORCPT ); Thu, 5 Jan 2023 19:37:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236500AbjAFAgI (ORCPT ); Thu, 5 Jan 2023 19:36:08 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71A2A4F12B for ; Thu, 5 Jan 2023 16:35:59 -0800 (PST) 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 111C461BC8 for ; Fri, 6 Jan 2023 00:35:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 682CEC433EF; Fri, 6 Jan 2023 00:35:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1672965358; bh=Y3dHW2OyoAzsK2lTJOeNTiyAPKI7jZYwvtzTuiqAmRY=; h=Date:To:From:Subject:From; b=jRV5Qh2yJOrZwVKpe9UzBN1sjQnRSnx8ZsRHHqTz856oHWWPhb61GMDaPT0xleiQh Ndgit8KyDJCBhiuQk4o6RqK1WRUDSHtc+ac2MvCvrfTkYSfF8t8gWXKzi9ZmbtZNKL gT1IKl0JkofZFRNfoOll7a+8GjuOXn3KROPKNwgY= Date: Thu, 05 Jan 2023 16:35:57 -0800 To: mm-commits@vger.kernel.org, Liam.Howlett@oracle.com, Liam.Howlett@Oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + madvise-use-split_vma-instead-of-__split_vma.patch added to mm-unstable branch Message-Id: <20230106003558.682CEC433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: madvise: use split_vma() instead of __split_vma() has been added to the -mm mm-unstable branch. Its filename is madvise-use-split_vma-instead-of-__split_vma.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/madvise-use-split_vma-instead-of-__split_vma.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: "Liam R. Howlett" Subject: madvise: use split_vma() instead of __split_vma() Date: Thu, 5 Jan 2023 19:16:01 +0000 The split_vma() wrapper is specifically for this use case, so use it. Link: https://lkml.kernel.org/r/20230105191517.3099082-30-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett Signed-off-by: Andrew Morton --- mm/madvise.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/mm/madvise.c~madvise-use-split_vma-instead-of-__split_vma +++ a/mm/madvise.c @@ -161,17 +161,13 @@ static int madvise_update_vma(struct vm_ *prev = vma; if (start != vma->vm_start) { - if (unlikely(mm->map_count >= sysctl_max_map_count)) - return -ENOMEM; - error = __split_vma(&vmi, vma, start, 1); + error = split_vma(&vmi, vma, start, 1); if (error) return error; } if (end != vma->vm_end) { - if (unlikely(mm->map_count >= sysctl_max_map_count)) - return -ENOMEM; - error = __split_vma(&vmi, vma, end, 0); + error = split_vma(&vmi, vma, end, 0); if (error) return error; } _ Patches currently in -mm which might be from Liam.Howlett@Oracle.com are maple_tree-add-mas_init-function.patch maple_tree-fix-potential-rcu-issue.patch maple_tree-reduce-user-error-potential.patch test_maple_tree-test-modifications-while-iterating.patch mm-expand-vma-iterator-interface.patch mm-mmap-convert-brk-to-use-vma-iterator.patch kernel-fork-convert-forking-to-using-the-vmi-iterator.patch mmap-convert-vma_link-vma-iterator.patch mm-mmap-remove-preallocation-from-do_mas_align_munmap.patch mmap-change-do_mas_munmap-and-do_mas_aligned_munmap-to-use-vma-iterator.patch mmap-convert-vma_expand-to-use-vma-iterator.patch mm-add-temporary-vma-iterator-versions-of-vma_merge-split_vma-and-__split_vma.patch ipc-shm-use-the-vma-iterator-for-munmap-calls.patch userfaultfd-use-vma-iterator.patch mm-change-mprotect_fixup-to-vma-iterator.patch mlock-convert-mlock-to-vma-iterator.patch coredump-convert-to-vma-iterator.patch mempolicy-convert-to-vma-iterator.patch task_mmu-convert-to-vma-iterator.patch sched-convert-to-vma-iterator.patch madvise-use-vmi-iterator-for-__split_vma-and-vma_merge.patch mmap-pass-through-vmi-iterator-to-__split_vma.patch mmap-use-vmi-version-of-vma_merge.patch mm-mremap-use-vmi-version-of-vma_merge.patch mm-switch-vma_merge-split_vma-and-__split_vma-to-vma-iterator.patch mmap-convert-__vma_adjust-to-use-vma-iterator.patch mm-pass-through-vma-iterator-to-__vma_adjust.patch madvise-use-split_vma-instead-of-__split_vma.patch mm-remove-unnecessary-write-to-vma-iterator-in-__vma_adjust.patch mm-pass-vma-iterator-through-to-__vma_adjust.patch mm-add-vma-iterator-to-vma_adjust-arguments.patch mmap-clean-up-mmap_region-unrolling.patch mm-change-munmap-splitting-order-and-move_vma.patch mm-mmap-move-anon_vma-setting-in-__vma_adjust.patch mm-mmap-refactor-locking-out-of-__vma_adjust.patch mm-mmap-use-vma_prepare-and-vma_complete-in-vma_expand.patch mm-mmap-introduce-init_vma_prep-and-init_multi_vma_prep.patch mm-dont-use-__vma_adjust-in-__split_vma.patch mm-mmap-dont-use-__vma_adjust-in-shift_arg_pages.patch mm-mmap-introduce-dup_vma_anon-helper.patch mm-mmap-convert-do_brk_flags-to-use-vma_prepare-and-vma_complete.patch mm-mmap-remove-__vma_adjust.patch vma_merge-set-vma-iterator-to-correct-position.patch