From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 29EE3357D07; Thu, 24 Sep 2026 05:00:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790226034; cv=none; b=rWiN8SXvT8Vt0sH6H9s8wm5J7TFo+JCwjsFljuNpvnjd8JfihQaChVyw/ZhTLMmVP8qsbNLctyfquUlh+Yz6Nd4JuNr2B2u595OcznE3rgq1gbFpDzINWoipKJ8r1Q0dB+61IpUC9HzTrN/dNDHPrFVVtosPhRDV8yl9Ozg9oIs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790226034; c=relaxed/simple; bh=byGcsqmsm/N1R0xTXpl1j3TGY+DHgMvLIEITNN4nqJw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=F5grEns3kveURVvjAwVouKe58+QEjat7qXmq9Dt0hTPwoCcmb57oCcfWaVPT9EAMidTJcr2vkVhf5yLBKrKTCkPH+sN91qYrsXkZhYgANMM2pNI5JAbCwZ7e5ssSJni7oTsuDMcLRbf8RjEnalNDm4Y25eexgBBPVatjkvvYMUo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=LuFybSna; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="LuFybSna" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 986F01650; Wed, 23 Sep 2026 22:00:28 -0700 (PDT) Received: from a081061.blr.arm.com (a081061.arm.com [10.164.19.84]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 6D7A93F86C; Wed, 23 Sep 2026 22:00:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1790226032; bh=byGcsqmsm/N1R0xTXpl1j3TGY+DHgMvLIEITNN4nqJw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LuFybSnaBK6aX9A1irXAYXSeNMGzh4XW6ctNbILwMrWmmAnlhIn77jfPGpRYPkd7A RqxBLqNFn91VSuvKtcW7w9vDPCCRho8LPF1Cqfao4evfSKjU1lUzqVLmAxCi48iGOD DaAMkeqiYABjim6BmgEzJZFnhZyAjA2oYemwlcX8= From: Sarthak Sharma To: Andrew Morton , David Hildenbrand Cc: Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Shuah Khan , John Hubbard , Kalesh Singh , Anshuman Khandual , Park Tae-sun , linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Sarthak Sharma Subject: [PATCH RESEND 2/9] selftests/mm: mremap_test: skip test when userfaultfd is unavailable Date: Thu, 24 Sep 2026 10:30:02 +0530 Message-ID: <20260924050009.19974-3-sarthak.sharma@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260924050009.19974-1-sarthak.sharma@arm.com> References: <20260924050009.19974-1-sarthak.sharma@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The userfaultfd syscall can return ENOSYS even when __NR_userfaultfd is defined by the architecture headers, for example when the kernel is built without CONFIG_USERFAULTFD. The test currently skips for EPERM when the caller lacks permission to use userfaultfd but treats ENOSYS as a failure. Handle ENOSYS like EPERM and skip the mremap_move_multi_invalid_vmas() test when userfaultfd syscall is not implemented. Fixes: 742d3663a577 ("selftests/mm: add test for invalid multi VMA operations") Signed-off-by: Sarthak Sharma --- tools/testing/selftests/mm/mremap_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c index 5532d3151ed0..a5813a5e8f5b 100644 --- a/tools/testing/selftests/mm/mremap_test.c +++ b/tools/testing/selftests/mm/mremap_test.c @@ -721,7 +721,7 @@ static void mremap_move_multi_invalid_vmas(FILE *maps_fp, if (uffd == -1) { err = errno; ksft_perror("userfaultfd"); - if (err == EPERM) { + if (err == EPERM || err == ENOSYS) { ksft_test_result_skip("%s - missing uffd\n", test_name); return; } -- 2.53.0