From nobody Thu Jan 1 10:43:04 2026 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 A712CC07545 for ; Tue, 24 Oct 2023 08:34:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234018AbjJXIe1 (ORCPT ); Tue, 24 Oct 2023 04:34:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234058AbjJXIeN (ORCPT ); Tue, 24 Oct 2023 04:34:13 -0400 Received: from mail-oi1-x235.google.com (mail-oi1-x235.google.com [IPv6:2607:f8b0:4864:20::235]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAA1210E2 for ; Tue, 24 Oct 2023 01:34:10 -0700 (PDT) Received: by mail-oi1-x235.google.com with SMTP id 5614622812f47-3b2ec5ee2e4so2865068b6e.3 for ; Tue, 24 Oct 2023 01:34:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1698136449; x=1698741249; darn=vger.kernel.org; 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=bzccM6C4HLhaCIv/SAdijHFdTidMSXBWQyZ1w5RDJYw=; b=SNEB0fqkUuNyllJMMihVQAlGEvxlD846I1ZA7TkiLKmn/zyiO9QTOKglOHgTOcy7cw YaQlyKeiffS0uBl0lsyehChNpguuAEKJpZsQ442epIy4bfYmwaCX82TCvQ9KN0h3NGUV mxBJaH2rWV1QYqjdWxijJtnCIpnOTP9hu7rIzjFqVqMUYJZUP42NmhsYjTqDZpdFVIa2 rH4ZlQYIjLZVgBGvDx1lkWCUz+ETFTNWdf3q5XYEi5MWtUfNqfG7SY9kwJI6VQ7LHvzy ccFB3SBBXl2A7Qla4vYnkGr+P0ogb5fKONd6b26qNaUv4Jvq4fW3EDpC0hAgGT5zTGbV NUcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698136449; x=1698741249; 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=bzccM6C4HLhaCIv/SAdijHFdTidMSXBWQyZ1w5RDJYw=; b=DJuO2ePYeNl5jQu59XzFHLr1A8ZrQj+1aZgHPNHhVyYaNiQMUEY2MoYJuiHWe3ql0W a8oGaNqSZUtBD4OAxMddPZkPhbOUamLmz0HTxNHWiHK/H/BoNCOZ5EQgpuW3IsLi41Cw qXCtO6WN9XtwfB9xP6hB/9G8q7xR1PiN6VVLBjv+TYuMWIfhbfayvR/XXRTyJ5xC7pGe xUlRJv5GUBXry7Xo48w4BnU9LAVYmawf4TGBBPk6FJQ7bvTOqiuZJauAk/g4koPii6Uj 90gYTSdwiZMjjClZ66KW3cZC4e4yx5mj6jQV6/cAcUkOoh/yBP4TTJPfCeiwiE1QTc93 c+Mw== X-Gm-Message-State: AOJu0YwrlXDyUMfTBSoXIUgHWcyyO5oojOJmGJ/YAGQIbsAXqLCWNbLX XSezpLY84AcTaZpNr9m5SMU2pQ== X-Google-Smtp-Source: AGHT+IFL9wgTTdwcf5iN1EU6ZDwg7/3PqxSbUY7aeR+GMticX3N3Q7oIRaxH4CtsM5Y8o0vT2v0b1Q== X-Received: by 2002:a05:6358:810c:b0:168:d6cd:7b2e with SMTP id p12-20020a056358810c00b00168d6cd7b2emr7924030rwk.29.1698136449463; Tue, 24 Oct 2023 01:34:09 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([203.208.167.147]) by smtp.gmail.com with ESMTPSA id y21-20020aa79af5000000b0068be348e35fsm7236977pfp.166.2023.10.24.01.34.03 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 24 Oct 2023 01:34:09 -0700 (PDT) From: Peng Zhang To: Liam.Howlett@oracle.com, corbet@lwn.net, akpm@linux-foundation.org, willy@infradead.org, brauner@kernel.org, surenb@google.com, michael.christie@oracle.com, mjguzik@gmail.com, mathieu.desnoyers@efficios.com, npiggin@gmail.com, peterz@infradead.org, oliver.sang@intel.com, mst@redhat.com Cc: zhangpeng.00@bytedance.com, maple-tree@lists.infradead.org, linux-mm@kvack.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH v6 09/10] maple_tree: Preserve the tree attributes when destroying maple tree Date: Tue, 24 Oct 2023 16:32:57 +0800 Message-Id: <20231024083258.65750-10-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20231024083258.65750-1-zhangpeng.00@bytedance.com> References: <20231024083258.65750-1-zhangpeng.00@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When destroying maple tree, preserve its attributes and then turn it into an empty tree. This allows it to be reused without needing to be reinitialized. Signed-off-by: Peng Zhang --- lib/maple_tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 6704b5c507b2..b9e238e7a7af 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -6765,7 +6765,7 @@ void __mt_destroy(struct maple_tree *mt) if (xa_is_node(root)) mte_destroy_walk(root, mt); =20 - mt->ma_flags =3D 0; + mt->ma_flags =3D mt_attr(mt); } EXPORT_SYMBOL_GPL(__mt_destroy); =20 --=20 2.20.1