From nobody Mon Apr 13 13:15:12 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 E9A33C4332F for ; Sun, 13 Nov 2022 00:56:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235055AbiKMA4r (ORCPT ); Sat, 12 Nov 2022 19:56:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34420 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230170AbiKMA4p (ORCPT ); Sat, 12 Nov 2022 19:56:45 -0500 Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D457813D6E for ; Sat, 12 Nov 2022 16:56:44 -0800 (PST) Received: by mail-ed1-x52a.google.com with SMTP id a13so12589715edj.0 for ; Sat, 12 Nov 2022 16:56:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=W0SikHTdUbXQLGro61wDie+oPkKhps+RKTwvHMmIsLg=; b=mw93TmEeH1gUrFjBnB2pV2QBDf+ZR6rzwh3OIkxUlRatK4s7HhNKVu7jXkoEG09aTI P0f8HQJhWzi4/70jiM86jX48e4C0NlM+4mMwlHpBlY0CCHhwjWCfghuNrhdqnS0bb71Z aBn1hfjfVeIPNv8JtPUW28yCoaIFakVMmzyOD97hJ25M5B15btMtjPK5ArTH+EjbCKTI CYxaNhakK1gZCX0CkGti6gNXeM8B+rkzZNOCw2vhMW1F/37bUPkyR2IrlXaxLcxTXZrO Y94Acve50lqRZ3eBoKOkVHEQjrTeyaqk/uZLWoOvkMZjudhlccgnHQR+7zQK25PjLoW8 5CIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=W0SikHTdUbXQLGro61wDie+oPkKhps+RKTwvHMmIsLg=; b=xctt+fIuc4B1YlVd7L2CdNhZg0i3JdfIoQacFUjTN+C973IkjuSwibJEkcFrUFrQAF LGOzemOcx81rhP1mU/q75s/rnM9CnACEKynLHWSXJkqDJlpT9xfJypAO2A1k6c35V1jY G6mVYFfrZClXFmw8gRiSxGlZX7DU9PCQZ4V6wbllN+ldNOQnDx+U7QVTkpORzd7XNNUo 1Oc0MeyHS57KKYEd+P5BD+W4obJOzfXS7kEm7QbmKBc5wAYSUuho9Hzx2Z1mDLWTNj3q MABxDNYy9hqai6yNjmRCF6Yzv/qAE/5lMKgKKlzVb02AWxjwJJHlHmGbfIkjKpd9zll+ 8gxg== X-Gm-Message-State: ANoB5pmWPMHPrRim4NcEKJ2nPgNQW9QIjUkahS/s2wXTD1+8UqVakusF Dhl7bEO1etF5WQWEHiZobT8= X-Google-Smtp-Source: AA0mqf6tPkb9QZNuvbeDhu+w2qQFk0kdlva83w34GrD+f50KhRRKfHfA71q565q1rM7fvZj/AKdyJA== X-Received: by 2002:a50:9eaa:0:b0:461:86b7:7627 with SMTP id a39-20020a509eaa000000b0046186b77627mr6974061edf.180.1668301003339; Sat, 12 Nov 2022 16:56:43 -0800 (PST) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id p25-20020a17090653d900b00779a605c777sm2398728ejo.192.2022.11.12.16.56.42 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sat, 12 Nov 2022 16:56:42 -0800 (PST) From: Wei Yang To: Liam.Howlett@oracle.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yang , "Liam R . Howlett" Subject: [PATCH] maple_tree: not necessary to filter MAPLE_PARENT_ROOT since it is not a root Date: Sun, 13 Nov 2022 00:56:18 +0000 Message-Id: <20221113005618.29679-1-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Root node is return at the beginning, so we are sure bit 0 is not set. Signed-off-by: Wei Yang CC: Liam R. Howlett --- 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 9aad98c24f3e..f8c4755e7c75 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -436,7 +436,7 @@ enum maple_type mte_parent_enum(struct maple_enode *p_e= node, return 0; /* Validated in the caller. */ =20 p_type &=3D MAPLE_NODE_MASK; - p_type =3D p_type & ~(MAPLE_PARENT_ROOT | mte_parent_slot_mask(p_type)); + p_type =3D p_type & ~mte_parent_slot_mask(p_type); =20 switch (p_type) { case MAPLE_PARENT_RANGE64: /* or MAPLE_PARENT_ARANGE64 */ --=20 2.33.1