From nobody Tue Feb 10 00:38:48 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 A1958EB64DC for ; Thu, 15 Jun 2023 08:44:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245227AbjFOIoI (ORCPT ); Thu, 15 Jun 2023 04:44:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241037AbjFOIne (ORCPT ); Thu, 15 Jun 2023 04:43:34 -0400 Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB802272E for ; Thu, 15 Jun 2023 01:43:12 -0700 (PDT) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-6664a9f0b10so1173531b3a.0 for ; Thu, 15 Jun 2023 01:43:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1686818592; x=1689410592; 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=h6we1XLVpJvFDKToAtCSdGG7AESFIveH8POVJHK7ygw=; b=KJqooEgRb2iG8G1YEwQaqnb6yEyBC3iktDlEuCSBmlCh99KVdbC4uXKwyOEWcJ/vOP DIqo86HSGslqIkVliO7JkAyqCgamZvnuTKyKqN4AbrShWmLI8k5Ca37sxCWu0JtQEQ9K ol0WmAJ3q9Y2U4SIj4Vx039gw/b6Hns2IJDVLd99kDe5nheMueLD1C9GADpQ7Xqq0y6S 992BUsR57Tu/AIwGg5EIyEIr7FlnvDWdZ2OGQBBbIBiKEp1+lnu066CqqEsTMIn7mRCo +ag3+4ZmKY4vks40xwKEB5VEbwCyTezKBcyE443UrMi+13WctUK8zwBk/BSkby+dhEDv 8kMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686818592; x=1689410592; 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=h6we1XLVpJvFDKToAtCSdGG7AESFIveH8POVJHK7ygw=; b=bc5ABhnFyhlOcqd13CCHb187oq2NuOVzxsK7fMg3GeveopdSKeYgcnPA8fNFPc6mJd uxm13k2ISkNx5y4IT9pq7LQqOF0yCde3VBHJDgfVwk/eHyJlrU5cKnGh7h1wMby/rkQE gQ/9oqa2Frq9yCTOu7OsLZ7SxNvQOB/6tn+MkzLZIytjq++SornS1f9gMauP/rPAGHEl bSIjFJRQUETiB42/Gb9gN55CdzPqLcrXOq4ESD05UmnXkiUd9ZvbbGjqeKkmKOgLye7t EITQzZ/LXc4uDm4BnRFgrG0RhkUtB9JBQTwVKloFe/o1YYxA40iwtLf+xfueLRxGc8m/ 1Nig== X-Gm-Message-State: AC+VfDyRhkEGQ1qLNc8NeB62NQphULL1i1oc6XrWKX2EHMIZOWsuAsOA 1fAwyjzLo3y3DlCqB77I+rgizA== X-Google-Smtp-Source: ACHHUZ7OxUHpAAt4DVa7Yj5aKyir5I7RaKxitjppVwOvFNh7V119bUWSksBzFLFq7Hpwse3+/gV1zQ== X-Received: by 2002:a05:6a20:8419:b0:10b:bad9:1d31 with SMTP id c25-20020a056a20841900b0010bbad91d31mr3987449pzd.26.1686818592167; Thu, 15 Jun 2023 01:43:12 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([139.177.225.249]) by smtp.gmail.com with ESMTPSA id i21-20020aa78b55000000b0064fe06fe712sm11139783pfd.129.2023.06.15.01.43.09 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 15 Jun 2023 01:43:11 -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: [PATCH v3 1/4] maple_tree: add test for mas_wr_modify() fast path Date: Thu, 15 Jun 2023 16:42:58 +0800 Message-Id: <20230615084301.97701-2-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) In-Reply-To: <20230615084301.97701-1-zhangpeng.00@bytedance.com> References: <20230615084301.97701-1-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 tests for all cases of mas_wr_append() and mas_wr_slot_store(). Signed-off-by: Peng Zhang --- lib/test_maple_tree.c | 65 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/lib/test_maple_tree.c b/lib/test_maple_tree.c index 15d7b7bce7d6..9403472af3d7 100644 --- a/lib/test_maple_tree.c +++ b/lib/test_maple_tree.c @@ -1159,6 +1159,71 @@ static noinline void __init check_ranges(struct mapl= e_tree *mt) MT_BUG_ON(mt, !mt_height(mt)); mtree_destroy(mt); =20 + /* Check in-place modifications */ + mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); + /* Append to the start of last range */ + mt_set_non_kernel(50); + for (i =3D 0; i <=3D 500; i++) { + val =3D i * 5 + 1; + val2 =3D val + 4; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Append to the last range without touching any boundaries */ + for (i =3D 0; i < 10; i++) { + val =3D val2 + 5; + val2 =3D val + 4; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Append to the end of last range */ + val =3D val2; + for (i =3D 0; i < 10; i++) { + val +=3D 5; + MT_BUG_ON(mt, mtree_test_store_range(mt, val, ULONG_MAX, + xa_mk_value(val)) !=3D 0); + } + + /* Overwriting the range and over a part of the next range */ + for (i =3D 10; i < 30; i +=3D 2) { + val =3D i * 5 + 1; + val2 =3D val + 5; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* Overwriting a part of the range and over the next range */ + for (i =3D 50; i < 70; i +=3D 2) { + val2 =3D i * 5; + val =3D val2 - 5; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* + * Expand the range, only partially overwriting the previous and + * next ranges + */ + for (i =3D 100; i < 130; i +=3D 3) { + val =3D i * 5 - 5; + val2 =3D i * 5 + 1; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + /* + * Expand the range, only partially overwriting the previous and + * next ranges, in RCU mode + */ + mt_set_in_rcu(mt); + for (i =3D 150; i < 180; i +=3D 3) { + val =3D i * 5 - 5; + val2 =3D i * 5 + 1; + check_store_range(mt, val, val2, xa_mk_value(val), 0); + } + + MT_BUG_ON(mt, !mt_height(mt)); + mt_validate(mt); + mt_set_non_kernel(0); + mtree_destroy(mt); + /* Test rebalance gaps */ mt_init_flags(mt, MT_FLAGS_ALLOC_RANGE); mt_set_non_kernel(50); --=20 2.20.1