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 DA758CD37BE for ; Mon, 11 May 2026 16:33:21 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 44DDE6B0123; Mon, 11 May 2026 12:33:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3FE656B0125; Mon, 11 May 2026 12:33:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2C5BC6B0126; Mon, 11 May 2026 12:33:21 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 157FA6B0123 for ; Mon, 11 May 2026 12:33:21 -0400 (EDT) Received: from smtpin17.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id CBAC74021F for ; Mon, 11 May 2026 16:33:20 +0000 (UTC) X-FDA: 84755684160.17.58481A8 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf25.hostedemail.com (Postfix) with ESMTP id 12F33A000D for ; Mon, 11 May 2026 16:33:18 +0000 (UTC) Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=hiXQ1ybr; spf=pass (imf25.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 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=1778517199; 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=eSdIVC/9q/NR2xw9dMof5QoFYv1esI47Iq3v+x8Ftl4=; b=bVGzTEraJvij4+Ck0l5GKVQT7LgPTSgtu6kwBEFgFs6osCphTpHe7rSiowFIu0SyKqUcKF o+BEdOymIQGFXDPR54U4APOr88zHe+2Rk7/L2gAmByRYnC+/FjegKwMamD0m9OMEX5darp +Hys6BX3gh144mpvH7gQkkzgjLGLU0I= ARC-Authentication-Results: i=1; imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=hiXQ1ybr; spf=pass (imf25.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 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=1778517199; a=rsa-sha256; cv=none; b=qjQ112V5ldGXpr/IvPuHmXw0GG83q34stQ3f2xto0TJf6mROgTd4xptzChBsGUpSetLjby 0K4KxawwSnOSoOb09Dk/X8puySy0p7KIQUFzpg5DVlQhonaMys5NAnl4WYR/3HOgJ/61CX kzEJC342lHEoW9+ZrSqQCuL3NhPNrdA= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 9927D60120; Mon, 11 May 2026 16:33:18 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49389C2BCFC; Mon, 11 May 2026 16:33:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778517198; bh=M5ApfsSYjafUfJ9qgwq5XnAC9wVA2+57J0j6FC98Eww=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hiXQ1ybrKjokkKJjCSwm36wQtUMAEH2YBFMm7TL9Yr5/Vq8P+7qKZvDqLrn3yQwsy eK6GiWeSaPif1iphBUI/XT8nW49DvFlZlOHZ3jaCPjuFmhZUMwDJQwuKxdoZ/w3qRw 2iG8Y3KRiT+6rN/pQpFECf3/+Hwmv/5tM+bU4kExEp5eVhWHwQmVbGRHBvJVicNrv7 zOrtZpPGUyEoX4cxaPi3CESQYcQR6x7bRQRxMIB3IJGHWlFCEv9b9tlDbyUFR6EsMI 45AOKO/DIjo4/mOt2aBmhrE4ebGFyvmqdlVNMLj/Jv/vH5fI75+X15mNDS2fcFKN9w xpesQcidZaW4A== 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 , Li Wang , 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 v4 41/55] selftests/mm: hugetlb-mremap: add setup of HugeTLB pages Date: Mon, 11 May 2026 19:28:25 +0300 Message-ID: <20260511162840.375890-42-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260511162840.375890-1-rppt@kernel.org> References: <20260511162840.375890-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: azcx8u845kuuucp7bh1uiqubtjb5mbys X-Rspamd-Queue-Id: 12F33A000D X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1778517198-844679 X-HE-Meta: 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 +g1RYCc6 2cNSL3xDru/XPJ4kOJvjtkXgJcSHLZM9lsISXKvEhvoz3YTYOjmpgWjmNhC2DDYXLRuwtyrmO2LkFufnqdbKvYP7Iv0B/sKh9Q5k/pFJLSxrzotldyAwiC2KYj5f9gfc7C3wkbV2ynZdbShSLzOSNRoZdrMeJKX8/K51/RyDpR0hpwbe/arQD39/zvAvxP+pWw2x3M9S2CandwQFc/0X+jvTm0GQRxRL+IN2uW6xfN8K19omcG0S2sQdihqfrxFC9fqBYcxAc1JyKAnhFvR407aMYkYz1VBYc2UQBd7kvMI04D2oSfdSqNnP8xFJHEszAnjKF Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: "Mike Rapoport (Microsoft)" hugetlb-mremap test fails 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. Tested-by: Luiz Capitulino Tested-by: Sarthak Sharma Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/hugetlb-mremap.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/hugetlb-mremap.c b/tools/testing/selftests/mm/hugetlb-mremap.c index 1c87c39780c5..d239905790dd 100644 --- a/tools/testing/selftests/mm/hugetlb-mremap.c +++ b/tools/testing/selftests/mm/hugetlb-mremap.c @@ -26,6 +26,7 @@ #include #include "kselftest.h" #include "vm_util.h" +#include "hugepage_settings.h" #define DEFAULT_LENGTH_MB 10UL #define MB_TO_BYTES(x) (x * 1024 * 1024) @@ -108,8 +109,9 @@ static void register_region_with_uffd(char *addr, size_t len) int main(int argc, char *argv[]) { + unsigned long hugepage_size; + int ret = 0, fd, nr; size_t length = 0; - int ret = 0, fd; ksft_print_header(); ksft_set_plan(1); @@ -125,7 +127,16 @@ int main(int argc, char *argv[]) else length = DEFAULT_LENGTH_MB; + hugepage_size = default_huge_page_size(); + if (!hugepage_size) + ksft_exit_skip("Could not detect default hugetlb page size\n"); length = MB_TO_BYTES(length); + length = (length + hugepage_size - 1) & ~(hugepage_size - 1); + nr = length / hugepage_size; + + if (!hugetlb_setup_default(nr)) + ksft_exit_skip("Not enough huge pages\n"); + fd = memfd_create(argv[0], MFD_HUGETLB); if (fd < 0) ksft_exit_fail_msg("Open failed: %s\n", strerror(errno)); -- 2.53.0