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[34.90.134.61]) by smtp.gmail.com with ESMTPSA id h31-20020a0564020e9f00b00558a1937dddsm3821348eda.63.2024.02.05.06.52.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Feb 2024 06:52:40 -0800 (PST) From: Terry Tritton To: akpm@linux-foundation.org, shuah@kernel.org Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, peter.griffin@linaro.org, bettyzhou@google.com, Terry Tritton Subject: [PATCH] selftests/mm: uffd-unit-test check if huge page size is 0 Date: Mon, 5 Feb 2024 14:50:56 +0000 Message-ID: <20240205145055.3545806-2-terry.tritton@linaro.org> X-Mailer: git-send-email 2.43.0.594.gd9cf4e227d-goog MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 5776F40012 X-Stat-Signature: askg6k13hamdxkmrfg4oaq51cpn5j8gh X-Rspam-User: X-HE-Tag: 1707144762-64891 X-HE-Meta: U2FsdGVkX1+j3QG2/Pl4fxQewMnTpepb+I2gUxGfn73o+McgFUPEYj3YEOPgYLLy6R6/Y2Qu+cnJ9PKIuFXjP3sSQPV2HJmTguEGzebUx+7zQkpLNblI1CoLuxRt/KmdnhiJnQUyfcdA2FWKeyRX5T3xDUMyRJOHBRoaK6nyO+g2bs2HfsJVDVR4DrGxhfaLgcX54/uCfzrMsbGqqTDd4iuT8gIWx0xLxeJ2BHQmptFvD225a2mdKHXs2n8tvOKf2iKYVHOSTX6qoS0JmcG3ztvPCZiCqKhuB8y6zkBWNkS3IX3VY8Ey4BN4SeNILF0od0mVJ9NyKC7XvHPWmkG/78FSqKNcgtcIN3IRg8v4LI2RDodVF1fQhmGIW/mwWhD4Me3Novm1Ko7qP7f2oprcDLGx+nhCPBjJOoOyfkmTl+Yn75oRJ3p97FXa52s10Ad86tSIJYnSH+f62UbhRhE9XgRUbJkr/IET4syi4ePUEbZ/Gd93WWtSGLyvM+xDlIUcqFQa70e7UheUp7U+nFXqELeraZrHfA3Rgpu7DvuSZqRC/qRokZCJujo8cUez4G2JWhqFsRvMHgOki4a1Lcx6e6ZCkEkJ3rgWW3ZHEk2+K/OKN1pkbro43yOPmXvQEVqwFxwr4YpCao+Gi94Pw7LANidBxktefVkN9/Ve36mBsLS/AtQFLZZrjFNDD19N7JEgK5/CHEAOnXYl7h11BBfr7aaw+7GNF8OvBtUYP1+ZwpmMgGfPyxCEA42O8dAvoXfw96qauNMZ8M45h7NQyDzu+EVOr+JFRlTQU9u5tblM3ROLCmEwx0jYKjAaWbBAENiPzKG/oJ4IhSOLXlwJQ4zWJKLfQZp8CfF9WjvhcYKpXlEdihEV8f3uGMtxDa4ZDPF6pEayc6ft4uJzAtxK0f/GYkgRleeRH2qjlfwml3mauA39X1mXd5Yo10QCuuwm2WAK+nfGypHzt+mXjIQm9AZ MVWJRK+Y zFtHNsfw7aWHNaEPTi5FIoCF2UhHTVnqUU2iULY2FgECZhZif4RNOZmIkzHXmT2pKJpvx2tslHPvSYfrK8ECGNB0Bk4LJyZ6SHTfRh3+zCKddyKQCJYANmsYmqd0FcVaL0q5ILavzOxmArVJt4wAj1hMmA6LpakW9uGPdRj5o+YgxXnpq5dH3lSZrLYiQa0f57nwL/RDU5yzcIacmqO6mFNrqHkM1N9M3ZRYkpcNmTh7MctyHtAYd4K8w8L599HqiAuj1fEFhbKfqar5CVMGug7yLySkMdHHQVOIFfqZbqdkV/RY= X-Bogosity: Ham, tests=bogofilter, spamicity=0.038459, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: If HUGETLBFS is not enabled then the default_huge_page_size function will return 0 and cause a divide by 0 error. Add a check to see if the huge page size is 0 and skip the hugetlb tests if it is. Signed-off-by: Terry Tritton --- tools/testing/selftests/mm/uffd-unit-tests.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c index cce90a10515a..2b9f8cc52639 100644 --- a/tools/testing/selftests/mm/uffd-unit-tests.c +++ b/tools/testing/selftests/mm/uffd-unit-tests.c @@ -1517,6 +1517,12 @@ int main(int argc, char *argv[]) continue; uffd_test_start("%s on %s", test->name, mem_type->name); + if ((mem_type->mem_flag == MEM_HUGETLB || + mem_type->mem_flag == MEM_HUGETLB_PRIVATE) && + (default_huge_page_size() == 0)) { + uffd_test_skip("huge page size is 0, feature missing?"); + continue; + } if (!uffd_feature_supported(test)) { uffd_test_skip("feature missing"); continue; -- 2.43.0.594.gd9cf4e227d-goog