From nobody Fri Jan 2 05:49:27 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 92507CDB465 for ; Mon, 16 Oct 2023 03:24:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231700AbjJPDYK (ORCPT ); Sun, 15 Oct 2023 23:24:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43914 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231722AbjJPDXx (ORCPT ); Sun, 15 Oct 2023 23:23:53 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C65AD19D for ; Sun, 15 Oct 2023 20:23:42 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id 98e67ed59e1d1-27cfb8bc7eeso3269886a91.0 for ; Sun, 15 Oct 2023 20:23:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1697426621; x=1698031421; 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=AVtomugZIRVe5XO/IomDBee5ri378ZRM5/INN5nVYsk=; b=ldXmvkonFc0oiRTa3tuI17TeE/i5DRDVkQ099+h4xoCEQKH/OUMGK9IGih3zfhX1ts BkJAi9wcx46uomc/yOdmAclf6OE/lQ9eVqYIM4+Cb73UjmVkx9DcDY10Qv4yn+z3lGDd cao9Ouzf10x0ug40yO9UYynQ/kv7Sy9MGBtnFalBE+TObIGDy1mEot2XEBlHwv3yBrZa oAqgKELyfPoKnsXiiq67dn7FywAJzYZTVellFmvhkxs9N0hxvOJm2V7JPNoos88uh3Hz vK0DiTCnpbo3WS1zAhUqcoeMggBhBboRZbwu0yNp/PKfC/EA7Xeg7HVOagM+rm9IDqcL DtAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697426621; x=1698031421; 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=AVtomugZIRVe5XO/IomDBee5ri378ZRM5/INN5nVYsk=; b=L2OQMJmZv/KlN+YUoem6hgLzKH9rf/or+jwxAYe9pVn9+e5z8CNTSkwL+++8Ir8XNf WD8+qsRnHPdFOgm42wAqjSUhOy8TRZXN4pGVx9ESflPKxfiHXr7UVHJcKuaDg2yVhTXI eHaeFmFvsUxer8aQYOeafgdNNlgANA9EJgF5c/mLd9LKmVvL1KRnvzEH2Mi2lzucVFlh 9Dmf5yNGUl8z2riWxfMlfpEBul1OaZssGEYGhUoHfkliNaXqhLVF5QDKEjtKLwvsZhZ7 i/51tiD7mp/Ge/DS/dC86EKXLJDBjjc5TwZh9QCU2NzYFQ5E0o7aYXYsNn8qZH2wgJBt 3clw== X-Gm-Message-State: AOJu0YyzKssVJzMK/l1oQZOXXpkH/GQksVSkNFWzfqcB7nwzBDoPD15D zadpBoj/kLMh6g1HANZZBGZjcw== X-Google-Smtp-Source: AGHT+IHSb0DNGBGR2h/8IDjSmu+jqGvudTUl4FEPI1UTDCPUIrsebdcLp2Rpr+bgZ6cxOHBljaILuA== X-Received: by 2002:a17:90a:d48b:b0:27c:f2e5:a82 with SMTP id s11-20020a17090ad48b00b0027cf2e50a82mr15318761pju.15.1697426621551; Sun, 15 Oct 2023 20:23:41 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([139.177.225.232]) by smtp.gmail.com with ESMTPSA id d8-20020a17090ae28800b0027758c7f585sm3452770pjz.52.2023.10.15.20.23.35 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 15 Oct 2023 20:23:41 -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 v5 09/10] maple_tree: Preserve the tree attributes when destroying maple tree Date: Mon, 16 Oct 2023 11:22:25 +0800 Message-Id: <20231016032226.59199-10-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20231016032226.59199-1-zhangpeng.00@bytedance.com> References: <20231016032226.59199-1-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 6e0ad83f14e3..9b5e5580b252 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -6779,7 +6779,7 @@ 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