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 40FBDC3DA7A for ; Fri, 6 Jan 2023 00:36:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236508AbjAFAgb (ORCPT ); Thu, 5 Jan 2023 19:36:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236314AbjAFAf7 (ORCPT ); Thu, 5 Jan 2023 19:35:59 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6ED0A59308 for ; Thu, 5 Jan 2023 16:35:44 -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 ams.source.kernel.org (Postfix) with ESMTPS id 2DEABB81C0C for ; Fri, 6 Jan 2023 00:35:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB85CC433F0; Fri, 6 Jan 2023 00:35:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1672965341; bh=4taOHF7dg8LD8qkp24zrpQBZoUPjfVL/AQX6MI0HIs8=; h=Date:To:From:Subject:From; b=Wt9z4+xyEG9bDNZxfEAn3x9Cr+6pmHmJicSxYD1NpiAqhitlMlbIJImx48pwuoal4 DzLOHEwZM9wso5XrCD1jKYZVNTnaI5EOXuu0Gu96WvXf4kYLOKL6Enxezuo4d3E2ir Atzra+FA5CZQ5IK3G8RwCccpboWLba6E+m1K77NI= Date: Thu, 05 Jan 2023 16:35:41 -0800 To: mm-commits@vger.kernel.org, Liam.Howlett@oracle.com, Liam.Howlett@Oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mmap-pass-through-vmi-iterator-to-__split_vma.patch added to mm-unstable branch Message-Id: <20230106003541.CB85CC433F0@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: mmap: pass through vmi iterator to __split_vma() has been added to the -mm mm-unstable branch. Its filename is mmap-pass-through-vmi-iterator-to-__split_vma.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mmap-pass-through-vmi-iterator-to-__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: mmap: pass through vmi iterator to __split_vma() Date: Thu, 5 Jan 2023 19:15:58 +0000 Use the vma iterator so that the iterator can be invalidated or updated to avoid each caller doing so. Link: https://lkml.kernel.org/r/20230105191517.3099082-23-Liam.Howlett@oracle.com Signed-off-by: Liam R. Howlett Signed-off-by: Andrew Morton --- mm/mmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/mmap.c~mmap-pass-through-vmi-iterator-to-__split_vma +++ a/mm/mmap.c @@ -2450,7 +2450,7 @@ do_vmi_align_munmap(struct vma_iterator if (end < vma->vm_end && mm->map_count >= sysctl_max_map_count) goto map_count_exceeded; - error = __split_vma(mm, vma, start, 0); + error = vmi__split_vma(vmi, mm, vma, start, 0); if (error) goto start_split_failed; @@ -2471,7 +2471,7 @@ do_vmi_align_munmap(struct vma_iterator if (next->vm_end > end) { struct vm_area_struct *split; - error = __split_vma(mm, next, end, 1); + error = vmi__split_vma(vmi, mm, next, end, 1); if (error) goto end_split_failed; _ 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