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 E80F8C76195 for ; Mon, 27 Mar 2023 17:01:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232679AbjC0RBs (ORCPT ); Mon, 27 Mar 2023 13:01:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232494AbjC0RBg (ORCPT ); Mon, 27 Mar 2023 13:01:36 -0400 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5CFDB3ABA for ; Mon, 27 Mar 2023 10:01:30 -0700 (PDT) Received: by mail-ed1-x52b.google.com with SMTP id h8so38968536ede.8 for ; Mon, 27 Mar 2023 10:01:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679936489; 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=cJqF1kO/34CZQDvUzjw0nFJI3uzZdbpWLYwh/sTURwSu3Zr7QVA3YB+xmzgjIXtxNw plTPyZ6Ff6nayjkPG65E5AbN6P4Br9KHA5h6J3SznKc7ceg+iApLDn78xbkIAA1tLJRM 0u6L7uk6uGWd5oQPkH2F3498o8rXSeu4vZLaZmUMftuHVTmZZrw35vDfC6fP/M5rBTGC oEJlhMH0hQsmZAs+mnqaI+s0N0uaUMD6RtXee01BUvrp8DvII6FNEUVk3tp9ckagjAeq BVTbcDwYhsqF2YJlqJcRfYfOtSlgwevlMeHevvq1dBw4qsIvUsevLMq7ibDfJK0pR+gU xlTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679936489; 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=v6PaB0CAU2Y6DL0zmJpZOoztqbebayyj5w47whDUCbkwyqCgdIc2LleuwI0Dme70Vr HTqgIiilU1rQSi1AyHF9qSunNvl6Lye5lHWR0pvwu1F8b6EwS1KBZYWVKJSfaHv1Fuol 2y5oIcXQBgFzf/OYWwJTBbjfrZ3tmp8ffx26GKc4CyzdKXv0sbjNQ4/khQNOHxOGsvTy 5nWfgkvsKaXTnRVd+kS06Z1RFAT3BzNmRaw3hrlEGcX6S2RjfI8poscE7zGQKoGwEsgA qP0pntMP1rVcck5FdZV0iJY2hfyll9wngAwSTPHjM2knZWlGPxCuu6R7jNZBPsdC1Sq8 jJOA== X-Gm-Message-State: AAQBX9c1XxfXgcV8PheQLPleqizufIHHpQ/jRLK9Z6Y2k/tN1XBHjOSL etX++0EmZQXJT5U24tZiFe0= X-Google-Smtp-Source: AKy350b3TXjxOhtha+OJSC79RBMwaldUw1aNzY57gPVRrx9yYKI8P7dgqIT+mPM/VNQnIURkGSaMiw== X-Received: by 2002:aa7:cd8b:0:b0:502:3ea4:7f95 with SMTP id x11-20020aa7cd8b000000b005023ea47f95mr5894891edv.35.1679936488703; Mon, 27 Mar 2023 10:01:28 -0700 (PDT) Received: from pc638.lan ([155.137.26.201]) by smtp.gmail.com with ESMTPSA id t27-20020a50ab5b000000b004c0c5864cc5sm14936026edc.25.2023.03.27.10.01.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Mar 2023 10:01:28 -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 v3 2/2] lib/test_vmalloc.c: Add vm_map_ram()/vm_unmap_ram() test case Date: Mon, 27 Mar 2023 19:01:26 +0200 Message-Id: <20230327170126.406044-2-urezki@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230327170126.406044-1-urezki@gmail.com> References: <20230327170126.406044-1-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