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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1BDB7FF886D for ; Tue, 28 Apr 2026 20:48:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 801D26B00F3; Tue, 28 Apr 2026 16:48:10 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7D2F96B00F5; Tue, 28 Apr 2026 16:48:10 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 70FFB6B00F6; Tue, 28 Apr 2026 16:48:10 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 601E06B00F3 for ; Tue, 28 Apr 2026 16:48:10 -0400 (EDT) Received: from smtpin30.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 0F342403A6 for ; Tue, 28 Apr 2026 20:48:10 +0000 (UTC) X-FDA: 84709151940.30.302979D Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf24.hostedemail.com (Postfix) with ESMTP id 5D52E180008 for ; Tue, 28 Apr 2026 20:48:08 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=LyYmCfUT; spf=pass (imf24.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1777409288; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=IfwxdIULrvPYbCaT0rC7nJp3cgiUYWThgSOqSi8ytkA=; b=MQhL+PQT5MF/6n0b1qY0i/QS9FxkA+GmXI65t/bxf8JH/swXgEHOzD6VrKza6MiePoTert gfJul7G0QFlaBPm6sNN0HfEBcbXxkFFjxqocfLzzV2m1mmzAcT5GC42Kh4x8osWTU6UZzH ZVnzKzi9SCrhxwEWA8YZT1tDtlDErKQ= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=LyYmCfUT; spf=pass (imf24.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1777409288; a=rsa-sha256; cv=none; b=gcAfcbHHGet+b/3EBj25ke63OjcU/8ACyLwNXQ4SJuJTrqadUAvqCQXgquxunBlE3vv+IU H/zmQ9WHXl/Xiz05icEOSTAHAt2NpZJr0rPXmbdxxYm+oEaKsXY3NsWPuJiSwl+utuow6T EPxqqWC0T2RKv1dQcJ0KNHIjgfTEUEs= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 815C640064; Tue, 28 Apr 2026 20:48:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 548C8C2BCB3; Tue, 28 Apr 2026 20:48:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777409287; bh=n2KgdfeDkv6qGICkBg3Vwdx+MRmhbjeNlFxUjnQTB8E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LyYmCfUTY2G4V530dknb3eO7NHTasmxoDpdVvrgwU78AtmHgRv4xF8f3uCPZ/jM14 cVswan0mmRYOHVU3VpVJosWpAoVZ1izld0PsVhUgCDUonA7gBWcjJ20emy2Z13ds0E RV2In/aOajeta7CYPc5WrEP+zpmw7j5LaaUOj/IYtlvjB9X0AqYr3dcW51oWC5ytkp KgYQ+54oL8dQ594Y/oteKma0ib+Dq/Derrz8iqbOchVmQYcn8JaMaxTA/K5YnhYnQW 9ifHzksHFVo17kV6W4wS8ub864jmzK0/kWbRu0aF7t2Y8XCHe07YkuCFetZvEIdVdP PLPrPgHSd14Yg== From: Mike Rapoport To: Andrew Morton , David Hildenbrand Cc: Baolin Wang , Barry Song , Dev Jain , Donet Tom , Jason Gunthorpe , John Hubbard , "Liam R. Howlett" , Lance Yang , Leon Romanovsky , Lorenzo Stoakes , Luiz Capitulino , Mark Brown , Michal Hocko , Mike Rapoport , Nico Pache , Peter Xu , Ryan Roberts , Sarthak Sharma , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Zi Yan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 48/54] selftests/mm: uffd-stress: use hugetlb_save and alloc huge pages Date: Tue, 28 Apr 2026 23:42:34 +0300 Message-ID: <20260428204240.1924129-49-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260428204240.1924129-1-rppt@kernel.org> References: <20260428204240.1924129-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 5D52E180008 X-Rspam-User: X-Stat-Signature: 6uoe8zxhdomc36e1en79cs9gf8ieezi5 X-HE-Tag: 1777409288-874717 X-HE-Meta: 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 WU2hPGok 6uIU6Bu4KAxayNju7yhB9NezjfeSLKPnikJ5FiE0bpySNhtHBsCyACrhfZez2sU9TaSOeSxAb1FP0PrfeBhEBhvSDibdORDtXHvE9SSlyn9KpiXowqM9xOXhbrIzkDne3+9skbyQ/YmgU/D4XpBs5S2yEFlZ8qGmY6y6QmQFbeu1lf5PB5GIB3CfEelGBCIYXyHgEKAenTx6kzq77/bHrq/twRoogx3SPhU6hTyS9lLLEPbfJ7FKNt695lwmRwZzr6u82loKoceSLi1ea/vKeiDg3kjj9YrTcof85 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" uffd-stress skips HugeTLB tests if there are no free huge pages prepared by a wrapper script. Add setup of HugeTLB pages to the test and make sure that the original settings are restored on the test exit. Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/uffd-stress.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index 7e37cf3d27f6..9693d042f16f 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -479,9 +479,12 @@ int main(int argc, char **argv) * Ensure nr_parallel - 1 hugepages on top of that to account * for racy extra reservation of hugepages. */ - if (gopts->test_type == TEST_HUGETLB && - hugetlb_free_default_pages() < 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1) - ksft_exit_skip("Skipping userfaultfd... not enough hugepages\n"); + if (gopts->test_type == TEST_HUGETLB) { + unsigned long nr = 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1; + + if (!hugetlb_setup_default(nr)) + ksft_exit_skip("Skipping userfaultfd... not enough hugepages\n"); + } gopts->nr_pages_per_cpu = bytes / gopts->page_size / gopts->nr_parallel; if (!gopts->nr_pages_per_cpu) { -- 2.53.0