From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08E3D305057 for ; Fri, 10 Jul 2026 22:45:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783723549; cv=none; b=h7zoKNXru/ee17wDbY3tD/IggFMVpvjaKsk56hezfBUdLVqY3nrZEPZFhhroU+Q4D5+HtLs7I+YsFdEhAZWnGfJFVhCnevnoRy2BhKGbtcg/SJ8E5yd6b60i7VDsojMED+K6/w417uvtQ/OjBGcdQr0yIBiwuqHJrn/los860/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783723549; c=relaxed/simple; bh=9UVh4EwTiMCpANZzED4pU1FyGF4wqRWugF3d++VQUtY=; h=Date:To:From:Subject:Message-Id; b=AYeWZ3iwmunvK23WOcl81w/yDCXHcUT/eQl7yKQtIi+mJIW0EnNMdic0hv1VSq+rYUvE+6kTg5rMR5/JafzLl7CCtnMQgbjWaXJtWGNZZJuoOvjSTYXhBgMSY6Ekgdg3F2N5zxk/zI6MeMx75tULWIb5xT2vc3FNjvxzmUfK5jY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=ybhJIvHC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="ybhJIvHC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D26481F000E9; Fri, 10 Jul 2026 22:45:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1783723547; bh=gkvCXhR3dEHQVz0eDdwGF91hEE8iCGS+Xf60Bi0HYRs=; h=Date:To:From:Subject; b=ybhJIvHCnjvS+t7ykvzPYMY5exeqP0tzB/TnJHeufmyagLxz3x8rKUZTOi2S3T3lL xn9aEL50vlDWynwYq/JXUZj9HfiUeGCnnP/YtI+s4df5dGU7Jq2lkS8D0PU6v/pl8t 7NmI7SZ5vYqwdOsMYxD6N+/6gAkILOMS+8KJH2ac= Date: Fri, 10 Jul 2026 15:45:47 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-rmap-update-mm-interval_treec-comments.patch added to mm-new branch Message-Id: <20260710224547.D26481F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/rmap: update mm/interval_tree.c comments has been added to the -mm mm-new branch. Its filename is mm-rmap-update-mm-interval_treec-comments.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rmap-update-mm-interval_treec-comments.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next 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 various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Lorenzo Stoakes Subject: mm/rmap: update mm/interval_tree.c comments Date: Fri, 10 Jul 2026 21:16:46 +0100 Update the file comment to clarify that both file-backed and anonymous interval trees are provided, referencing the relevant data types for clarity. Also add comments to indicate which parts of the file apply to each. While we're here, convert the VM_BUG_ON_VMA() to VM_WARN_ON_ONCE_VMA(). Link: https://lore.kernel.org/20260710-b4-pre-scalable-cow-v2-5-2a5aa403d977@kernel.org Signed-off-by: Lorenzo Stoakes Reviewed-by: Pedro Falcato Reviewed-by: Gregory Price Cc: Ackerley Tng Cc: David Hildenbrand (Arm) Cc: Kai Huang Cc: Marek Szyprowski Cc: SJ Park Cc: Thomas Zimmermann Cc: Vlastimil Babka (SUSE) Signed-off-by: Andrew Morton --- mm/interval_tree.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/mm/interval_tree.c~mm-rmap-update-mm-interval_treec-comments +++ a/mm/interval_tree.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * mm/interval_tree.c - interval tree for mapping->i_mmap + * mm/interval_tree.c - interval tree for address_space->i_mmap and + * anon_vma->rb_root * * Copyright (C) 2012, Michel Lespinasse */ @@ -10,6 +11,8 @@ #include #include +/* File-backed interval tree (address_space->i_mmap) */ + INTERVAL_TREE_DEFINE(struct vm_area_struct, shared.rb, unsigned long, shared.rb_subtree_last, vma_start_pgoff, vma_last_pgoff, /* empty */, vma_interval_tree) @@ -23,7 +26,7 @@ void vma_interval_tree_insert_after(stru struct vm_area_struct *parent; unsigned long last = vma_last_pgoff(node); - VM_BUG_ON_VMA(vma_start_pgoff(node) != vma_start_pgoff(prev), node); + VM_WARN_ON_ONCE_VMA(vma_start_pgoff(node) != vma_start_pgoff(prev), node); if (!prev->shared.rb.rb_right) { parent = prev; @@ -48,6 +51,8 @@ void vma_interval_tree_insert_after(stru &vma_interval_tree_augment); } +/* Anonymous interval tree (anon_vma->rb_root) */ + static inline unsigned long avc_start_pgoff(struct anon_vma_chain *avc) { return vma_start_pgoff(avc->vma); _ Patches currently in -mm which might be from ljs@kernel.org are mm-move-alloc-tag-to-mm.patch mm-ptdump-always-stabilise-against-page-table-freeing-using-init_mm.patch mm-vmalloc-acquire-init_mm-read-lock-on-huge-vmap-promotion.patch revert-arm64-enable-vmalloc-huge-with-ptdump.patch mm-move-vma_start_pgoff-into-mmh-and-clean-up.patch mm-add-kdoc-comments-for-vma_start-last_pgoff.patch tools-testing-vma-use-vma_start_pgoff-in-merge-tests.patch mm-introduce-and-use-vma_end_pgoff.patch mm-rmap-update-mm-interval_treec-comments.patch mm-rmap-parameterise-vma_interval_tree_-by-address_space.patch mm-rmap-elide-unnecessary-static-inlines-in-interval_treec.patch mm-rmap-rename-vma_interval_tree_-to-mapping_rmap_tree_.patch mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma.patch mm-rmap-rename-anon_vma_interval_tree_-params-and-use-pgoff_t.patch mm-rmap-rename-anon_vma_interval_tree_-to-anon_rmap_tree_.patch maintainers-move-mm-interval_treec-to-rmap-section.patch mm-vma-introduce-and-use-vmg_pages-vmg__pgoff.patch mm-vma-clean-up-anon_vma_compatible.patch mm-vma-refactor-vmg_adjust_set_range-for-clarity.patch mm-vma-minor-cleanup-of-expand_.patch mm-introduce-and-use-linear_page_delta.patch mm-vma-use-vma_start_pgoff-linear_page_index-in-mm-code.patch mm-prefer-vma__pgoff-to-vma-vm_pgoff-in-kernel.patch mm-vma-remove-duplicative-vma_pgoff_offset-helper.patch mm-use-linear_page_-consistently.patch mm-vma-introduce-vma_assert_can_modify.patch mm-vma-add-and-use-vma__pgoff.patch mm-vma-move-__install_special_mapping-to-vmac.patch mm-vma-make-vma_set_range-static-drop-insert_vm_struct-decl.patch mm-vma-update-vma_shrink-to-not-pass-start-pgoff-parameters.patch mm-vma-update-vmg_adjust_set_range-to-offset-pgoff-instead.patch mm-vma-slightly-rework-the-anonymous-check-in-__mmap_new_vma.patch mm-vma-introduce-and-use-vma_set_pgoff.patch mm-vma-correct-incorrect-vmah-inclusion.patch mm-vma-use-guard-clauses-in-can_vma_merge_.patch tools-testing-vma-default-vma-mm-flag-bits-to-64-bit.patch tools-testing-vma-output-compared-expression-on-assert_.patch