From nobody Fri Feb 13 14:26:38 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 5FD62CE7A95 for ; Mon, 25 Sep 2023 03:59:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231944AbjIYD7K (ORCPT ); Sun, 24 Sep 2023 23:59:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231916AbjIYD6q (ORCPT ); Sun, 24 Sep 2023 23:58:46 -0400 Received: from mail-oi1-x229.google.com (mail-oi1-x229.google.com [IPv6:2607:f8b0:4864:20::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2E6ECD1 for ; Sun, 24 Sep 2023 20:58:34 -0700 (PDT) Received: by mail-oi1-x229.google.com with SMTP id 5614622812f47-3a76d882052so3685966b6e.0 for ; Sun, 24 Sep 2023 20:58:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance.com; s=google; t=1695614314; x=1696219114; 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=WdG6oUlthPIzD1rC2JhHIaoZzeLYPv1w9Sr7ZAA5CbQ=; b=LlVLwZHDoqwPOjeARJF8Qy6YzqVf5S1F9wYejmpyJOh0i4Ty+8HWLrpj19OYtBBjhR 6/6Zi61zITjAVOGWwwnwoOHVrw5DZ0Trui88wM17rdfGUMDAe11T/La0Kcu4SGTBuSuW 6Qszwv51Oe9dx+/kDkBCrWjC9Z0JBEpMDj5gszNZsjI1aPObTG+c2ApzJQM+Y3EbXjO4 sV2XrQA5JQyeZVcednY9aJsTPZr0ExWQeiJVqYxERPpcjBXO1V8lLQ9lclvU+EDRrhrW 8UtJk5NmN54NoAcFjJmlFOCwKmVm1HbKNDhvtovHXeT3O94Z03hESQgQkzqXxsqFSz3W wD8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695614314; x=1696219114; 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=WdG6oUlthPIzD1rC2JhHIaoZzeLYPv1w9Sr7ZAA5CbQ=; b=XCNwaYWgaPAVWwRNeIwXjTyhwC8bMdpM8XzSwx0l3MhoqTgeEVOFIsgLx/uzug/skR GO1J6y6oKBLqz5MBhtVShP2AZaPsdhktqjlmcYEw+lkI8m3WXuagjl4XKo0TuPAKh7Mt noBysmnobmjgM68XLHQK/ajvGlT+GTV3JOFOIAUlnoLq3hXnMJXVANRgKpO3b6yg1O1J fUz5xxr78Ep7W0P4IM5KXqNDPgiTVVdLVJcuKpgNovpPU8qePYrpULtn0MJvoHgXh9xd qJsrarpVyiKW6d0s7IoS71mgTiRu67I4yqJCJFHmSI9ukEYUentkz/b1Pgbu7yEbHKUC IShQ== X-Gm-Message-State: AOJu0Yx7l0+iGCBtOxXwCGY9t/vy9bo2LsQM8TLcBZrxfjNivaskpbrk gnYrQoPCzK/6Q2YqL0fi2Eklow== X-Google-Smtp-Source: AGHT+IHz2ndjLi4p0Gje1YthvgpBIruj0G0SKyaU/Zdnp5MehEAkCxmAplzbTbydiUzzRnW+WyU8Mg== X-Received: by 2002:a05:6808:130e:b0:3a9:cfb5:4641 with SMTP id y14-20020a056808130e00b003a9cfb54641mr7842375oiv.48.1695614314045; Sun, 24 Sep 2023 20:58:34 -0700 (PDT) Received: from GL4FX4PXWL.bytedance.net ([203.208.167.146]) by smtp.gmail.com with ESMTPSA id fm1-20020a056a002f8100b00679a4b56e41sm7025387pfb.43.2023.09.24.20.58.27 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 24 Sep 2023 20:58:33 -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 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 v3 7/9] maple_tree: Update check_forking() and bench_forking() Date: Mon, 25 Sep 2023 11:56:15 +0800 Message-Id: <20230925035617.84767-8-zhangpeng.00@bytedance.com> X-Mailer: git-send-email 2.37.0 (Apple Git-136) In-Reply-To: <20230925035617.84767-1-zhangpeng.00@bytedance.com> References: <20230925035617.84767-1-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" Updated check_forking() and bench_forking() to use __mt_dup() to duplicate maple tree. Signed-off-by: Peng Zhang --- lib/test_maple_tree.c | 61 +++++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 31 deletions(-) diff --git a/lib/test_maple_tree.c b/lib/test_maple_tree.c index 0ec0c6a7c0b5..485d308a1ca7 100644 --- a/lib/test_maple_tree.c +++ b/lib/test_maple_tree.c @@ -1837,36 +1837,37 @@ static noinline void __init check_forking(struct ma= ple_tree *mt) { =20 struct maple_tree newmt; - int i, nr_entries =3D 134; + int i, nr_entries =3D 134, ret; void *val; MA_STATE(mas, mt, 0, 0); - MA_STATE(newmas, mt, 0, 0); + MA_STATE(newmas, &newmt, 0, 0); + + mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE); =20 for (i =3D 0; i <=3D nr_entries; i++) mtree_store_range(mt, i*10, i*10 + 5, xa_mk_value(i), GFP_KERNEL); =20 + mt_set_non_kernel(99999); - mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE); - newmas.tree =3D &newmt; - mas_reset(&newmas); - mas_reset(&mas); mas_lock(&newmas); - mas.index =3D 0; - mas.last =3D 0; - if (mas_expected_entries(&newmas, nr_entries)) { + mas_lock_nested(&mas, SINGLE_DEPTH_NESTING); + + ret =3D __mt_dup(mt, &newmt, GFP_NOWAIT | __GFP_NOWARN); + if (ret) { pr_err("OOM!"); BUG_ON(1); } - rcu_read_lock(); - mas_for_each(&mas, val, ULONG_MAX) { - newmas.index =3D mas.index; - newmas.last =3D mas.last; + + mas_set(&newmas, 0); + mas_for_each(&newmas, val, ULONG_MAX) { mas_store(&newmas, val); } - rcu_read_unlock(); - mas_destroy(&newmas); + + mas_unlock(&mas); mas_unlock(&newmas); + + mas_destroy(&newmas); mt_validate(&newmt); mt_set_non_kernel(0); mtree_destroy(&newmt); @@ -1974,12 +1975,11 @@ static noinline void __init check_mas_store_gfp(str= uct maple_tree *mt) #if defined(BENCH_FORK) static noinline void __init bench_forking(struct maple_tree *mt) { - struct maple_tree newmt; - int i, nr_entries =3D 134, nr_fork =3D 80000; + int i, nr_entries =3D 134, nr_fork =3D 80000, ret; void *val; MA_STATE(mas, mt, 0, 0); - MA_STATE(newmas, mt, 0, 0); + MA_STATE(newmas, &newmt, 0, 0); =20 for (i =3D 0; i <=3D nr_entries; i++) mtree_store_range(mt, i*10, i*10 + 5, @@ -1988,25 +1988,24 @@ static noinline void __init bench_forking(struct ma= ple_tree *mt) for (i =3D 0; i < nr_fork; i++) { mt_set_non_kernel(99999); mt_init_flags(&newmt, MT_FLAGS_ALLOC_RANGE); - newmas.tree =3D &newmt; - mas_reset(&newmas); - mas_reset(&mas); - mas.index =3D 0; - mas.last =3D 0; - rcu_read_lock(); + mas_lock(&newmas); - if (mas_expected_entries(&newmas, nr_entries)) { - printk("OOM!"); + mas_lock_nested(&mas, SINGLE_DEPTH_NESTING); + ret =3D __mt_dup(mt, &newmt, GFP_NOWAIT | __GFP_NOWARN); + if (ret) { + pr_err("OOM!"); BUG_ON(1); } - mas_for_each(&mas, val, ULONG_MAX) { - newmas.index =3D mas.index; - newmas.last =3D mas.last; + + mas_set(&newmas, 0); + mas_for_each(&newmas, val, ULONG_MAX) { mas_store(&newmas, val); } - mas_destroy(&newmas); + + mas_unlock(&mas); mas_unlock(&newmas); - rcu_read_unlock(); + + mas_destroy(&newmas); mt_validate(&newmt); mt_set_non_kernel(0); mtree_destroy(&newmt); --=20 2.20.1