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 E6F39C2BB3F for ; Mon, 20 Nov 2023 20:08:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229689AbjKTUIm (ORCPT ); Mon, 20 Nov 2023 15:08:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45330 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229476AbjKTUIk (ORCPT ); Mon, 20 Nov 2023 15:08:40 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89B51BE for ; Mon, 20 Nov 2023 12:08:37 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26C11C433C8; Mon, 20 Nov 2023 20:08:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1700510917; bh=QLX/1UOiCr9atASr/vmq2v1rtNIqd2Tk/w8E+ELs2nM=; h=Date:To:From:Subject:From; b=dn1tFv3aknMBI/MsyCpiksRBFoPJRh3/WnBys7+7oPzqfLRLscyg5t6Bku3Gj2drb LlGOzuRh51WBlUmGLokVNXc8ZIfML+qenFVfKeV4JPzm0iXLQujjtzwHIgvIzpXzXW /mGDPSSO7K77sRGP1uPFvmPOPfR3frbtbfBZXxnc= Date: Mon, 20 Nov 2023 12:08:36 -0800 To: mm-commits@vger.kernel.org, Liam.Howlett@oracle.com, dan.carpenter@linaro.org, zhangpeng.00@bytedance.com, akpm@linux-foundation.org From: Andrew Morton Subject: + maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum.patch added to mm-unstable branch Message-Id: <20231120200837.26C11C433C8@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: maple_tree: avoid ascending when mas->min is also the parent's minimum has been added to the -mm mm-unstable branch. Its filename is maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum.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: Peng Zhang Subject: maple_tree: avoid ascending when mas->min is also the parent's minimum Date: Mon, 20 Nov 2023 15:09:34 +0800 When the child node is the first child of its parent node, mas->min does not need to be updated. This can reduce the number of ascending times in some cases. Link: https://lkml.kernel.org/r/20231120070937.35481-3-zhangpeng.00@bytedance.com Signed-off-by: Peng Zhang Reviewed-by: Liam R. Howlett Cc: Dan Carpenter Signed-off-by: Andrew Morton --- lib/maple_tree.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/lib/maple_tree.c~maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum +++ a/lib/maple_tree.c @@ -1088,14 +1088,16 @@ static int mas_ascend(struct ma_state *m return 0; } - if (!mas->min) + min = 0; + max = ULONG_MAX; + if (!mas->offset) { + min = mas->min; set_min = true; + } if (mas->max == ULONG_MAX) set_max = true; - min = 0; - max = ULONG_MAX; do { p_enode = a_enode; a_type = mas_parent_type(mas, p_enode); _ Patches currently in -mm which might be from zhangpeng.00@bytedance.com are maple_tree-add-mt_free_one-and-mt_attr-helpers.patch maple_tree-introduce-mtreemas_lock_nested.patch maple_tree-introduce-interfaces-__mt_dup-and-mtree_dup.patch radix-tree-test-suite-align-kmem_cache_alloc_bulk-with-kernel-behavior.patch maple_tree-add-test-for-mtree_dup.patch maple_tree-update-the-documentation-of-maple-tree.patch maple_tree-skip-other-tests-when-bench-is-enabled.patch maple_tree-update-check_forking-and-bench_forking.patch maple_tree-preserve-the-tree-attributes-when-destroying-maple-tree.patch fork-use-__mt_dup-to-duplicate-maple-tree-in-dup_mmap.patch maple_tree-move-the-check-forward-to-avoid-static-check-warning.patch maple_tree-avoid-ascending-when-mas-min-is-also-the-parents-minimum.patch maple_tree-remove-an-unused-parameter-for-ma_meta_end.patch maple_tree-delete-one-of-the-two-identical-checks.patch maple_tree-simplify-mas_leaf_set_meta.patch