From mboxrd@z Thu Jan 1 00:00:00 1970 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 D2C73C76195 for ; Mon, 27 Mar 2023 16:53:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232754AbjC0QxT (ORCPT ); Mon, 27 Mar 2023 12:53:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229986AbjC0Qw5 (ORCPT ); Mon, 27 Mar 2023 12:52:57 -0400 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 7A0FC30D0 for ; Mon, 27 Mar 2023 09:52:33 -0700 (PDT) Received: by mail-ed1-x52a.google.com with SMTP id w9so38944479edc.3 for ; Mon, 27 Mar 2023 09:52:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679935951; 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=psu4ofpncoCQSYgbBGuLj7J5oQ90Aa4oswGxv8KP4JU=; b=oqLO6H8UszXaMp/SFz19taH9BEbDwduqf6iMDkFtdJHaO195+2htbsYsmJLvDI6+HH R/m3LYGi5ke97tU6RqC52NkdYRk8mJp5an604LUc4TFpFboDPOrE3LKM99rHPd1OFw+6 8I294X01903WfnqY8p/F+rpHHO4e1hCf+HwQb+TqnmbODIpB4Q/v6Lxhzixp0TobaIB/ SUub76+dzYpeiwkECh3GSb9z340MsmyfbOYJ1V24AI4nH5id2fkFTj+0Hoqy2zXPQqXt kf3NnKUoYtq9j2nlDlWO9nV3i5q1wV+xwOLUPJo47WnYdpjaebcYrJdhMGgVUO2DKYp4 mvYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679935951; 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=psu4ofpncoCQSYgbBGuLj7J5oQ90Aa4oswGxv8KP4JU=; b=NTsbS/c4dF5Y2LQntuEJrYlKXPg0WzzRuNW0qu/0ORPAP7dTbZE2/wC1rpMuZjztmg 4MoHyh/EeR2R7a0qyf75ot3gohS/iTSBhIQkab1m84BiDKG6mnN+8I52eVjgVKZpv2MH jNXmVON/nMwzEFs2XXGQ/CLHk3FBofBJGiacQMMy7TNg31+LkWP6xwZCA9HbUhIIt/iN icTJGLE7HUiAxHgpOv6iFbLhcCwr8rHyXoFto6n2fwIRcikLhXSOvQ/J2b8JWbrBMbS2 vPSmvoGpcnjppNo5zTlrDZ/2174606yCd1dL6/eTQR1IurnEY8L+ZSs09QGK+eYwwjv2 KXxw== X-Gm-Message-State: AAQBX9f+ScamlyLfSDPLHBN1LVZeAWnnb7mksdGe565lPars96FQ06vG fU/CTC8xk1tqp5/wUpyxn40= X-Google-Smtp-Source: AKy350aqqGV4WSXqY4JijppBYLY54SH1M8lng+djwiThsPYVbd6JJK1pASBCkFqGbfRGWDgK7uthVw== X-Received: by 2002:a17:906:5608:b0:8b1:78bc:7508 with SMTP id f8-20020a170906560800b008b178bc7508mr12515293ejq.20.1679935951241; Mon, 27 Mar 2023 09:52:31 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id b24-20020a170906491800b008e82cb55195sm14217282ejq.203.2023.03.27.09.52.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Mar 2023 09:52:31 -0700 (PDT) From: "Uladzislau Rezki (Sony)" To: Andrew Morton Cc: linux-mm@kvack.org, LKML , Baoquan He , Lorenzo Stoakes , Christoph Hellwig , Matthew Wilcox , Dave Chinner , Uladzislau Rezki , Oleksiy Avramchenko Subject: [PATCH v2 2/2] lib/test_vmalloc.c: Add vm_map_ram()/vm_unmap_ram() test case Date: Mon, 27 Mar 2023 18:52:27 +0200 Message-Id: <20230327165228.405045-2-urezki@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230327165228.405045-1-urezki@gmail.com> References: <20230327165228.405045-1-urezki@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add vm_map_ram()/vm_unmap_ram() test case to our stress test-suite. Signed-off-by: Uladzislau Rezki (Sony) --- lib/test_vmalloc.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c index cd2bdba6d3ed..6633eda4cd4d 100644 --- a/lib/test_vmalloc.c +++ b/lib/test_vmalloc.c @@ -53,6 +53,7 @@ __param(int, run_test_mask, INT_MAX, "\t\tid: 128, name: pcpu_alloc_test\n" "\t\tid: 256, name: kvfree_rcu_1_arg_vmalloc_test\n" "\t\tid: 512, name: kvfree_rcu_2_arg_vmalloc_test\n" + "\t\tid: 1024, name: vm_map_ram_test\n" /* Add a new test case description here. */ ); @@ -358,6 +359,45 @@ kvfree_rcu_2_arg_vmalloc_test(void) return 0; } +static int +vm_map_ram_test(void) +{ + unsigned int map_nr_pages; + unsigned char *v_ptr; + unsigned char *p_ptr; + struct page **pages; + struct page *page; + int i; + + map_nr_pages = nr_pages > 0 ? nr_pages:1; + pages = kmalloc(map_nr_pages * sizeof(*page), GFP_KERNEL); + if (!pages) + return -1; + + for (i = 0; i < map_nr_pages; i++) { + page = alloc_pages(GFP_KERNEL, 1); + if (!page) + return -1; + + pages[i] = page; + } + + /* Run the test loop. */ + for (i = 0; i < test_loop_count; i++) { + v_ptr = vm_map_ram(pages, map_nr_pages, -1); + *v_ptr = 'a'; + vm_unmap_ram(v_ptr, map_nr_pages); + } + + for (i = 0; i < map_nr_pages; i++) { + p_ptr = page_address(pages[i]); + free_pages((unsigned long)p_ptr, 1); + } + + kfree(pages); + return 0; +} + struct test_case_desc { const char *test_name; int (*test_func)(void); @@ -374,6 +414,7 @@ static struct test_case_desc test_case_array[] = { { "pcpu_alloc_test", pcpu_alloc_test }, { "kvfree_rcu_1_arg_vmalloc_test", kvfree_rcu_1_arg_vmalloc_test }, { "kvfree_rcu_2_arg_vmalloc_test", kvfree_rcu_2_arg_vmalloc_test }, + { "vm_map_ram_test", vm_map_ram_test }, /* Add a new test case here. */ }; -- 2.30.2