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 4D680EB64D9 for ; Fri, 7 Jul 2023 10:11:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233068AbjGGKLz (ORCPT ); Fri, 7 Jul 2023 06:11:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232201AbjGGKLl (ORCPT ); Fri, 7 Jul 2023 06:11:41 -0400 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7611CAF for ; Fri, 7 Jul 2023 03:11:15 -0700 (PDT) Received: by mail-pf1-x42f.google.com with SMTP id d2e1a72fcca58-666eb03457cso1060254b3a.1 for ; Fri, 07 Jul 2023 03:11:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1688724675; x=1691316675; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=obQkYhgKS4HY8GCkScMSh7+VaHIuzmq4BqEaENwQoNQ=; b=ahfJjKcjkN3t/H/Kibyt7ZUmq5o9Qf9MqO0YUCMAE1gwMas3raqn7C91lMkIMWWa+T IJpR/S9MoSPTB0GA9vEeaHbA3kmXN2W7SWysLZhJs6HexLH13doyrOLey8REwDAcdRPN fP8HOY0sup0QDoYEw9uvVF3G2q+51TJo0nXFR7bTMRyT5OacgzLxQE9frW/AKpX+AWNR /D2sk7Q+gPL7mw1O1vqKgXJGKmWY5ytglXmVVnGG1IqqW4I012Ywz9z/LyJ6/oJGZlRb r8NHFBGoZggHXSbLeAun3FT8PlbYYDJt1ZBk1/8+08pOsZ9cvnyjpIIiC2BX2Ly1YlQ6 H0SA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688724675; x=1691316675; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=obQkYhgKS4HY8GCkScMSh7+VaHIuzmq4BqEaENwQoNQ=; b=PqpNxHZ7zdGwT3NKZFMpIxBkIzXRi2tVuMGPcFAZU/hvIoefnd7LkBLu3vFUTQISUE oHZlZDJbdWs4J6P4J02Qc/fTC7pWvA9rbaXw5ZHES5RCbydShiEZ6chnJgfO9CcWZSQ6 GtJ7yd5jchl9IJKBs4HFKiZzf8AudlZLxpdbEjVGIpreqeL49OSYrjYdmJyWoU17hWhg uJpd29wX7cDqtwofZ4G6qQUAF8nIFjrHyfKjtklG+XavaNbiUTKEpxxooVFfTgYpEjEi 4AP2TsAV3lSerD47dxhnXuoAZ6EZjBQUS3HlhUwpTMZ0DyISMnAozGECJw02X+6b3Ssz k7wQ== X-Gm-Message-State: ABy/qLY0/uzKgeO2kqjSbS8m/OxA1CWVaXI+uF12A97DKmrElwjTYH53 qac5qfp06m/5I194/CLBNbZ/UQ== X-Google-Smtp-Source: APBJJlHDXMs7auQxKm6lk5bZ49tnnErX5Li8AtE/l8/sNkUBvdMUGaUh5L2J1GdM5UfG+EeVA+sVlg== X-Received: by 2002:a05:6a00:1593:b0:65e:ec60:b019 with SMTP id u19-20020a056a00159300b0065eec60b019mr4460571pfk.25.1688724674907; Fri, 07 Jul 2023 03:11:14 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id x11-20020a056a00270b00b0068288aaf23esm2602549pfv.100.2023.07.07.03.11.12 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 07 Jul 2023 03:11:14 -0700 (PDT) From: Peng Zhang To: Liam.Howlett@oracle.com Cc: akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, maple-tree@lists.infradead.org, Peng Zhang Subject: [RESEND PATCH 1/8] maple_tree: set the node limit when creating a new root node Date: Fri, 7 Jul 2023 18:10:50 +0800 Message-Id: <20230707101057.29326-2-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) In-Reply-To: <20230707101057.29326-1-zhangpeng.00@bytedance.com> References: <20230707101057.29326-1-zhangpeng.00@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Set the node limit of the root node so that the last pivot of all nodes is the node limit (if the node is not full). Signed-off-by: Peng Zhang --- lib/maple_tree.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index d3072858c280..f55e59bd9122 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -3692,7 +3692,8 @@ static inline int mas_root_expand(struct ma_state *mas, void *entry) mas->offset = slot; pivots[slot] = mas->last; if (mas->last != ULONG_MAX) - slot++; + pivots[++slot] = ULONG_MAX; + mas->depth = 1; mas_set_height(mas); ma_set_meta(node, maple_leaf_64, 0, slot); -- 2.20.1