From patchwork Tue Apr 6 12:45:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Uladzislau Rezki X-Patchwork-Id: 12185219 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7AA9EC433ED for ; Tue, 6 Apr 2021 12:45:49 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id E99FE613C6 for ; Tue, 6 Apr 2021 12:45:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E99FE613C6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 48A616B007E; Tue, 6 Apr 2021 08:45:48 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4623D6B0080; Tue, 6 Apr 2021 08:45:48 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3023A6B0081; Tue, 6 Apr 2021 08:45:48 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0088.hostedemail.com [216.40.44.88]) by kanga.kvack.org (Postfix) with ESMTP id 1773B6B007E for ; Tue, 6 Apr 2021 08:45:48 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id B89038249980 for ; Tue, 6 Apr 2021 12:45:47 +0000 (UTC) X-FDA: 78001913934.28.3372725 Received: from mail-lf1-f45.google.com (mail-lf1-f45.google.com [209.85.167.45]) by imf25.hostedemail.com (Postfix) with ESMTP id E3FB66000112 for ; Tue, 6 Apr 2021 12:45:45 +0000 (UTC) Received: by mail-lf1-f45.google.com with SMTP id b4so22507975lfi.6 for ; Tue, 06 Apr 2021 05:45:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qzax+/pLWvJYyiIHAdv41YU12arGs3IsFzSPSlTtPtM=; b=VXesCySQLpLhUMFCPD/bZGY383PiVyfGMpEQc7GnGlSvfopbl9/puexwZSUKTzX1ZP SyPbcyItJSEtkJcb05Ooma5md8eEH0QC4OlyJJv+X4IgJPiPbCh13YDhX8dVb2XnMYTI mONkGlcSYg1MLDhj4C+Urz37rW2n+5l70Uz+vL3rf1LuCu7RD2zgY+DGmZ8wIBiX+9iM DyiaNAIfE0w+P2Qplvw8s3bdkzvNHHZftUWn6fVveMfTdKOudltnsZKa0IjISDmfOJZI ksZ+ry0uS73QLNR01d3CLUZAyGx4g3kr+Mql3pABK9k+zlnJ41DOn6zB4rQpdu56CpbN O/Ag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=qzax+/pLWvJYyiIHAdv41YU12arGs3IsFzSPSlTtPtM=; b=KI7KDtbDfBqQNMNRCKjU0kPgIJVQnN10R4p8d4hqE6d0pxoRXCsRRFZgHEisclkJ58 hNL9ygk91gf+DgGdV3PcBCZBBCWuK6/YxA4bqgo+3/isAC8TucycWygP2zAVasS3yoc0 /sSYELOYzRGWLWSN2hEZx1FBesFXiC4FlN31/jdib7E3K5UmWp0+hl5enS2O1eT2HNmJ gAPW5AeFTnv16afgdKLzJGi+OZEZcAJob0ebqjdz4jHOEZca9MNqfiMxE5MFtUmq33Ic blxzfbe3h3sdYgfJov/SsdFNJRUDRTsYPNeGjBYfkrtLtky0DIvahFrRsaPtaWBXnfDB PVJA== X-Gm-Message-State: AOAM530FS0JsNRQZRchit+7FVSK0f1h4a8TV7BHfkAKPI7spzX7e4WSf biXabstfUjdDvuMFQ7hVIXM= X-Google-Smtp-Source: ABdhPJwmoEzD2XGY7n2Doeo5Pr+CZDqoRx3yOfhM83vbMVtM/ICpFg3ozbgu0lq0hU0Mn03y9CcfoQ== X-Received: by 2002:ac2:5d52:: with SMTP id w18mr20296986lfd.28.1617713145961; Tue, 06 Apr 2021 05:45:45 -0700 (PDT) Received: from pc638.lan (h5ef52e3d.seluork.dyn.perspektivbredband.net. [94.245.46.61]) by smtp.gmail.com with ESMTPSA id n17sm257111lfe.0.2021.04.06.05.45.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Apr 2021 05:45:45 -0700 (PDT) From: "Uladzislau Rezki (Sony)" To: Andrew Morton Cc: linux-mm@kvack.org, LKML , Uladzislau Rezki , Hillf Danton , Michal Hocko , Matthew Wilcox , Oleksiy Avramchenko , Steven Rostedt Subject: [PATCH-next 1/1] lib/test_vmalloc.c: extend max value of nr_threads parameter Date: Tue, 6 Apr 2021 14:45:36 +0200 Message-Id: <20210406124536.19658-1-urezki@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: E3FB66000112 X-Stat-Signature: 9dbkeqxdz3t3t88u5ga66k3jxiyx9hjt Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf25; identity=mailfrom; envelope-from=""; helo=mail-lf1-f45.google.com; client-ip=209.85.167.45 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1617713145-761955 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Currently a maximum value is set to 1024 workers the user can create during the test. It might be that for some big systems it is not enough. Since it is a test thing we can give testers more flexibility. Increase that number till USHRT_MAX that corresponds to 65535. Signed-off-by: Uladzislau Rezki (Sony) --- lib/test_vmalloc.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/lib/test_vmalloc.c b/lib/test_vmalloc.c index d337985e4c5e..01e9543de566 100644 --- a/lib/test_vmalloc.c +++ b/lib/test_vmalloc.c @@ -24,7 +24,7 @@ MODULE_PARM_DESC(name, msg) \ __param(int, nr_threads, 0, - "Number of workers to perform tests(min: 1 max: 1024)"); + "Number of workers to perform tests(min: 1 max: USHRT_MAX)"); __param(bool, sequential_test_order, false, "Use sequential stress tests order"); @@ -469,13 +469,13 @@ init_test_configurtion(void) { /* * A maximum number of workers is defined as hard-coded - * value and set to 1024. We add such gap just in case - * and for potential heavy stressing. + * value and set to USHRT_MAX. We add such gap just in + * case and for potential heavy stressing. */ - nr_threads = clamp(nr_threads, 1, 1024); + nr_threads = clamp(nr_threads, 1, (int) USHRT_MAX); /* Allocate the space for test instances. */ - tdriver = kcalloc(nr_threads, sizeof(*tdriver), GFP_KERNEL); + tdriver = kvcalloc(nr_threads, sizeof(*tdriver), GFP_KERNEL); if (tdriver == NULL) return -1; @@ -555,7 +555,7 @@ static void do_concurrent_test(void) i, t->stop - t->start); } - kfree(tdriver); + kvfree(tdriver); } static int vmalloc_test_init(void)