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 5848B3859E3 for ; Fri, 10 Jul 2026 22:46:13 +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=1783723574; cv=none; b=ggKG+S0n6h18iton3ypAGUyWf3HGCl2ubgIWtxZk7Cfv7942Af34ZI2BEtc2w7sQ4qkDq5tZGn0cSs91UuuTmnMiB7hAnyvdanfXhlhoU0xhSJwXhwO+CJdVRwnp39BV0AjD1Row1+iBHrMxCz6g8om/wxCwo39OGVUskf1oQjM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783723574; c=relaxed/simple; bh=leBmiZLohPV9aAGic9JeGwg9Qd2qTxTNXLbNT4AAgFU=; h=Date:To:From:Subject:Message-Id; b=ZOn1mZ969Fvz6V+KUuXjHxi4F2FloMCabFykhk2wacaPpo03DMGP6/iaqdjk2DQ8g+/pspB/+EYmSUud2qMxtsxFPtKRRBBY8ClgtdRb2Dunj9v5gNH/1PhlD2wnGIVKlJKsCvsR7sK5efU5apStXYiZ4lhsNMVkwbX6ZoOfsac= 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=SmsoVxiC; 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="SmsoVxiC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CEB11F00A3D; Fri, 10 Jul 2026 22:46:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1783723573; bh=lyjMbqVL0/d7mPc7+2qi1DSCXfWZvikaUbE/UuPrfDQ=; h=Date:To:From:Subject; b=SmsoVxiCwOYp4xMRHnczHrIVs3KU/eot7tGGy7k1iOI6o6o2hghX+tx36fvuXsn1E o1xB5tivE/LWzWlem6AJe4mwvxKKk1OWqNVy/mer3znLTYiRzaSJZhJ3esvEVjWEts 2BPDr6cC6Kl8Awpy4tDSsBQ3E7ePjP8QD4vfD0YU= Date: Fri, 10 Jul 2026 15:46:12 -0700 To: mm-commits@vger.kernel.org,ljs@kernel.org,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma.patch added to mm-new branch Message-Id: <20260710224613.2CEB11F00A3D@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: parameterise anon_vma_interval_tree_*() by anon_vma has been added to the -mm mm-new branch. Its filename is mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma.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: parameterise anon_vma_interval_tree_*() by anon_vma Date: Fri, 10 Jul 2026 21:16:50 +0100 Similar to what we did with mapping_rmap_tree*(), let's declare anon_vma_interval_tree*() in terms of anon_vma rather than rb_root_cached. In each case the rb tree referenced is &anon_vma->rb_root, so just pass anon_vma and the functions can figure this out themselves. Also update the VMA userland tests to reflect the change. No functional change intended. Link: https://lore.kernel.org/20260710-b4-pre-scalable-cow-v2-9-2a5aa403d977@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 --- include/linux/mm.h | 11 ++++++----- mm/interval_tree.c | 13 +++++++------ mm/ksm.c | 6 ++---- mm/memory-failure.c | 3 +-- mm/rmap.c | 11 +++++------ mm/vma.c | 4 ++-- tools/testing/vma/include/stubs.h | 4 ++-- 7 files changed, 25 insertions(+), 27 deletions(-) --- a/include/linux/mm.h~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/include/linux/mm.h @@ -4115,14 +4115,15 @@ mapping_rmap_tree_iter_next(struct vm_ar pgoff_last)) void anon_vma_interval_tree_insert(struct anon_vma_chain *node, - struct rb_root_cached *root); + struct anon_vma *anon_vma); void anon_vma_interval_tree_remove(struct anon_vma_chain *node, - struct rb_root_cached *root); + struct anon_vma *anon_vma); struct anon_vma_chain * -anon_vma_interval_tree_iter_first(struct rb_root_cached *root, +anon_vma_interval_tree_iter_first(struct anon_vma *anon_vma, unsigned long start, unsigned long last); -struct anon_vma_chain *anon_vma_interval_tree_iter_next( - struct anon_vma_chain *node, unsigned long start, unsigned long last); +struct anon_vma_chain * +anon_vma_interval_tree_iter_next(struct anon_vma_chain *avc, + unsigned long start, unsigned long last); #ifdef CONFIG_DEBUG_VM_RB void anon_vma_interval_tree_verify(struct anon_vma_chain *node); #endif --- a/mm/interval_tree.c~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/mm/interval_tree.c @@ -96,26 +96,27 @@ INTERVAL_TREE_DEFINE(struct anon_vma_cha static, __anon_vma_interval_tree) void anon_vma_interval_tree_insert(struct anon_vma_chain *node, - struct rb_root_cached *root) + struct anon_vma *anon_vma) { #ifdef CONFIG_DEBUG_VM_RB node->cached_vma_start = avc_start_pgoff(node); node->cached_vma_last = avc_last_pgoff(node); #endif - __anon_vma_interval_tree_insert(node, root); + __anon_vma_interval_tree_insert(node, &anon_vma->rb_root); } void anon_vma_interval_tree_remove(struct anon_vma_chain *node, - struct rb_root_cached *root) + struct anon_vma *anon_vma) { - __anon_vma_interval_tree_remove(node, root); + __anon_vma_interval_tree_remove(node, &anon_vma->rb_root); } struct anon_vma_chain * -anon_vma_interval_tree_iter_first(struct rb_root_cached *root, +anon_vma_interval_tree_iter_first(struct anon_vma *anon_vma, unsigned long first, unsigned long last) { - return __anon_vma_interval_tree_iter_first(root, first, last); + return __anon_vma_interval_tree_iter_first(&anon_vma->rb_root, + first, last); } struct anon_vma_chain * --- a/mm/ksm.c~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/mm/ksm.c @@ -3232,8 +3232,7 @@ again: * we wouldn't have the KSM folio mapped in these processes * anymore. */ - anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root, - index, index) { + anon_vma_interval_tree_foreach(vmac, anon_vma, index, index) { cond_resched(); vma = vmac->vma; @@ -3295,8 +3294,7 @@ void collect_procs_ksm(const struct foli task_early_kill(tsk, force_early); if (!t) continue; - anon_vma_interval_tree_foreach(vmac, &av->rb_root, index, - index) + anon_vma_interval_tree_foreach(vmac, av, index, index) { vma = vmac->vma; if (vma->vm_mm == t->mm) { --- a/mm/memory-failure.c~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/mm/memory-failure.c @@ -564,8 +564,7 @@ static void collect_procs_anon(const str if (!t) continue; - anon_vma_interval_tree_foreach(vmac, &av->rb_root, - pgoff, pgoff) { + anon_vma_interval_tree_foreach(vmac, av, pgoff, pgoff) { vma = vmac->vma; if (vma->vm_mm != t->mm) continue; --- a/mm/rmap.c~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/mm/rmap.c @@ -211,7 +211,7 @@ int __anon_vma_prepare(struct vm_area_st if (likely(!vma->anon_vma)) { vma->anon_vma = anon_vma; anon_vma_chain_assign(vma, avc, anon_vma); - anon_vma_interval_tree_insert(avc, &anon_vma->rb_root); + anon_vma_interval_tree_insert(avc, anon_vma); anon_vma->num_active_vmas++; allocated = NULL; avc = NULL; @@ -354,7 +354,7 @@ int anon_vma_clone(struct vm_area_struct list_for_each_entry_reverse(avc, &dst->anon_vma_chain, same_vma) { struct anon_vma *anon_vma = avc->anon_vma; - anon_vma_interval_tree_insert(avc, &anon_vma->rb_root); + anon_vma_interval_tree_insert(avc, anon_vma); if (operation == VMA_OP_FORK) maybe_reuse_anon_vma(dst, anon_vma); } @@ -434,7 +434,7 @@ int anon_vma_fork(struct vm_area_struct anon_vma_chain_assign(vma, avc, anon_vma); /* Now let rmap see it. */ anon_vma_lock_write(anon_vma); - anon_vma_interval_tree_insert(avc, &anon_vma->rb_root); + anon_vma_interval_tree_insert(avc, anon_vma); anon_vma->parent->num_children++; anon_vma_unlock_write(anon_vma); @@ -499,7 +499,7 @@ void unlink_anon_vmas(struct vm_area_str list_for_each_entry_safe(avc, next, &vma->anon_vma_chain, same_vma) { struct anon_vma *anon_vma = avc->anon_vma; - anon_vma_interval_tree_remove(avc, &anon_vma->rb_root); + anon_vma_interval_tree_remove(avc, anon_vma); /* * Leave empty anon_vmas on the list - we'll need @@ -2988,8 +2988,7 @@ static void rmap_walk_anon(struct folio pgoff_start = folio_pgoff(folio); pgoff_end = pgoff_start + folio_nr_pages(folio) - 1; - anon_vma_interval_tree_foreach(avc, &anon_vma->rb_root, - pgoff_start, pgoff_end) { + anon_vma_interval_tree_foreach(avc, anon_vma, pgoff_start, pgoff_end) { struct vm_area_struct *vma = avc->vma; unsigned long address = vma_address(vma, pgoff_start, folio_nr_pages(folio)); --- a/mm/vma.c~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/mm/vma.c @@ -272,7 +272,7 @@ anon_vma_interval_tree_pre_update_vma(st struct anon_vma_chain *avc; list_for_each_entry(avc, &vma->anon_vma_chain, same_vma) - anon_vma_interval_tree_remove(avc, &avc->anon_vma->rb_root); + anon_vma_interval_tree_remove(avc, avc->anon_vma); } static void @@ -281,7 +281,7 @@ anon_vma_interval_tree_post_update_vma(s struct anon_vma_chain *avc; list_for_each_entry(avc, &vma->anon_vma_chain, same_vma) - anon_vma_interval_tree_insert(avc, &avc->anon_vma->rb_root); + anon_vma_interval_tree_insert(avc, avc->anon_vma); } /* --- a/tools/testing/vma/include/stubs.h~mm-rmap-parameterise-anon_vma_interval_tree_-by-anon_vma +++ a/tools/testing/vma/include/stubs.h @@ -272,12 +272,12 @@ static inline void flush_dcache_mmap_unl } static inline void anon_vma_interval_tree_insert(struct anon_vma_chain *avc, - struct rb_root_cached *rb) + struct anon_vma *anon_vma) { } static inline void anon_vma_interval_tree_remove(struct anon_vma_chain *avc, - struct rb_root_cached *rb) + struct anon_vma *anon_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