From nobody Thu Dec 18 01:26:28 2025 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 D9797C25B6E for ; Fri, 27 Oct 2023 03:39:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345225AbjJ0Djf (ORCPT ); Thu, 26 Oct 2023 23:39:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345248AbjJ0Djc (ORCPT ); Thu, 26 Oct 2023 23:39:32 -0400 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 584D9198 for ; Thu, 26 Oct 2023 20:39:07 -0700 (PDT) Received: by mail-pg1-x533.google.com with SMTP id 41be03b00d2f7-5aa7172bafdso1326470a12.1 for ; Thu, 26 Oct 2023 20:39:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1698377947; x=1698982747; 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=tMjhw76FECkOO5zRdU6IjOHgP+3TMOQK2mZ19zJdvuE=; b=AuoT6Ymrit+ZplwF9h5pZgz5X2ydjFt5NqEFhn5MYDY6PFkj4TMwjfLxY/hqZRqWJL n+QeVjvAwwIMabb8Aof754791skcrsrIgCTxK5ZO+hn1PXRY7hhhhveeEtDOjyrk5zxn cwucZRpdPKVx3VcrxovDJnbLg0Y3Xe02GJPoiUiyi1D5zU+DY6WRDNUxm77DlBlnIK52 4RYDp/SKZ8O7jkKsUB7R4EpQjmXoP+yEm5gN97k878r/SkQebOdzl3bRAfvfOrqQ0Egd uorpPXUIZLygh/M1AVJY1Aq+EDMZUOljrEckiyiI7T53fJlpeNKuMQ187ycHOFN2bF4M 7RAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698377947; x=1698982747; 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=tMjhw76FECkOO5zRdU6IjOHgP+3TMOQK2mZ19zJdvuE=; b=QEcIT6fk79OJtTTGEXU9MuT25a1//MgcEdWtl+EyYe7r2sShLeCCL1LxvBWaaA/lhL 9i82TMJUARkf90UJxUIt4djVOsvP3nCBMh+GFM0wOLD83UGUIsvqg5tcEONf/bFrwXwt UQuxo0atA9ZgftLKeYMkfadBJUv7e+VtYfv1pLGy8w7yXnbN5l/N3B0HLeT1VNleAw/7 aZDuv/Ux03X8RjIQ++E1r6cRQLTLgF16EixYME+9z0JKgGRr8cvmThPAOdoecc/hyn4q J8xttJWLCCnekIhgSAG//8OC4YFhxJrYb+bWVZ3crsopM/B+2/9nKVoBMf6UE0VveuXK X77g== X-Gm-Message-State: AOJu0YzWYBfp0VIaE9wj7nq2hsF8noKuhO4Pw+Cd41UPKS/zqMBLeOEd HRxVSvWInzBTxCRy9Jc4KHvyhw== X-Google-Smtp-Source: AGHT+IE+9o1D6mC/tBfbhMEHSHxO+4OKy9VNzv+o8iR1rqr4G54ZqAEfL4OOVueaw3fQnMy76xQeKg== X-Received: by 2002:a05:6a21:3d89:b0:17b:3cd6:b1bc with SMTP id bj9-20020a056a213d8900b0017b3cd6b1bcmr1812360pzc.14.1698377946837; Thu, 26 Oct 2023 20:39:06 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([203.208.189.7]) by smtp.gmail.com with ESMTPSA id ms19-20020a17090b235300b00267d9f4d340sm2345676pjb.44.2023.10.26.20.38.59 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 26 Oct 2023 20:39:06 -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 v7 01/10] maple_tree: Add mt_free_one() and mt_attr() helpers Date: Fri, 27 Oct 2023 11:38:36 +0800 Message-Id: <20231027033845.90608-2-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20231027033845.90608-1-zhangpeng.00@bytedance.com> References: <20231027033845.90608-1-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" Add two helpers: 1. mt_free_one(), used to free a maple node. 2. mt_attr(), used to obtain the attributes of maple tree. Signed-off-by: Peng Zhang Reviewed-by: Liam R. Howlett --- lib/maple_tree.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index bb24d84a4922..ca7039633844 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -165,6 +165,11 @@ static inline int mt_alloc_bulk(gfp_t gfp, size_t size= , void **nodes) return kmem_cache_alloc_bulk(maple_node_cache, gfp, size, nodes); } =20 +static inline void mt_free_one(struct maple_node *node) +{ + kmem_cache_free(maple_node_cache, node); +} + static inline void mt_free_bulk(size_t size, void __rcu **nodes) { kmem_cache_free_bulk(maple_node_cache, size, (void **)nodes); @@ -205,6 +210,11 @@ static unsigned int mas_mt_height(struct ma_state *mas) return mt_height(mas->tree); } =20 +static inline unsigned int mt_attr(struct maple_tree *mt) +{ + return mt->ma_flags & ~MT_FLAGS_HEIGHT_MASK; +} + static inline enum maple_type mte_node_type(const struct maple_enode *entr= y) { return ((unsigned long)entry >> MAPLE_NODE_TYPE_SHIFT) & @@ -5573,7 +5583,7 @@ void mas_destroy(struct ma_state *mas) mt_free_bulk(count, (void __rcu **)&node->slot[1]); total -=3D count; } - kmem_cache_free(maple_node_cache, node); + mt_free_one(ma_mnode_ptr(node)); total--; } =20 --=20 2.20.1