Remove most of the special-casing of hugetlbfs now that sealing is supported.
Signed-off-by: Marc-André Lureau <[email protected]> --- tools/testing/selftests/memfd/memfd_test.c | 150 +++-------------------------- 1 file changed, 15 insertions(+), 135 deletions(-) diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c index f94c6d1fb46f..f5028f800107 100644 --- a/tools/testing/selftests/memfd/memfd_test.c +++ b/tools/testing/selftests/memfd/memfd_test.c @@ -512,6 +512,10 @@ static void mfd_assert_grow_write(int fd) static char *buf; ssize_t l; + /* hugetlbfs does not support write */ + if (hugetlbfs_test) + return; + buf = malloc(mfd_def_size * 8); if (!buf) { printf("malloc(%d) failed: %m\n", mfd_def_size * 8); @@ -532,6 +536,10 @@ static void mfd_fail_grow_write(int fd) static char *buf; ssize_t l; + /* hugetlbfs does not support write */ + if (hugetlbfs_test) + return; + buf = malloc(mfd_def_size * 8); if (!buf) { printf("malloc(%d) failed: %m\n", mfd_def_size * 8); @@ -626,18 +634,13 @@ static void test_create(void) fd = mfd_assert_new("", 0, MFD_CLOEXEC); close(fd); - if (!hugetlbfs_test) { - /* verify MFD_ALLOW_SEALING is allowed */ - fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING); - close(fd); - - /* verify MFD_ALLOW_SEALING | MFD_CLOEXEC is allowed */ - fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING | MFD_CLOEXEC); - close(fd); - } else { - /* sealing is not supported on hugetlbfs */ - mfd_fail_new("", MFD_ALLOW_SEALING); - } + /* verify MFD_ALLOW_SEALING is allowed */ + fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING); + close(fd); + + /* verify MFD_ALLOW_SEALING | MFD_CLOEXEC is allowed */ + fd = mfd_assert_new("", 0, MFD_ALLOW_SEALING | MFD_CLOEXEC); + close(fd); } /* @@ -648,10 +651,6 @@ static void test_basic(void) { int fd; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s BASIC\n", MEMFD_STR); fd = mfd_assert_new("kern_memfd_basic", @@ -696,28 +695,6 @@ static void test_basic(void) close(fd); } -/* - * hugetlbfs doesn't support seals or write, so just verify grow and shrink - * on a hugetlbfs file created via memfd_create. - */ -static void test_hugetlbfs_grow_shrink(void) -{ - int fd; - - printf("%s HUGETLBFS-GROW-SHRINK\n", MEMFD_STR); - - fd = mfd_assert_new("kern_memfd_seal_write", - mfd_def_size, - MFD_CLOEXEC); - - mfd_assert_read(fd); - mfd_assert_write(fd); - mfd_assert_shrink(fd); - mfd_assert_grow(fd); - - close(fd); -} - /* * Test SEAL_WRITE * Test whether SEAL_WRITE actually prevents modifications. @@ -726,13 +703,6 @@ static void test_seal_write(void) { int fd; - /* - * hugetlbfs does not contain sealing or write support. Just test - * basic grow and shrink via test_hugetlbfs_grow_shrink. - */ - if (hugetlbfs_test) - return test_hugetlbfs_grow_shrink(); - printf("%s SEAL-WRITE\n", MEMFD_STR); fd = mfd_assert_new("kern_memfd_seal_write", @@ -759,10 +729,6 @@ static void test_seal_shrink(void) { int fd; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s SEAL-SHRINK\n", MEMFD_STR); fd = mfd_assert_new("kern_memfd_seal_shrink", @@ -789,10 +755,6 @@ static void test_seal_grow(void) { int fd; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s SEAL-GROW\n", MEMFD_STR); fd = mfd_assert_new("kern_memfd_seal_grow", @@ -819,10 +781,6 @@ static void test_seal_resize(void) { int fd; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s SEAL-RESIZE\n", MEMFD_STR); fd = mfd_assert_new("kern_memfd_seal_resize", @@ -841,32 +799,6 @@ static void test_seal_resize(void) close(fd); } -/* - * hugetlbfs does not support seals. Basic test to dup the memfd created - * fd and perform some basic operations on it. - */ -static void hugetlbfs_dup(char *b_suffix) -{ - int fd, fd2; - - printf("%s HUGETLBFS-DUP %s\n", MEMFD_STR, b_suffix); - - fd = mfd_assert_new("kern_memfd_share_dup", - mfd_def_size, - MFD_CLOEXEC); - - fd2 = mfd_assert_dup(fd); - - mfd_assert_read(fd); - mfd_assert_write(fd); - - mfd_assert_shrink(fd2); - mfd_assert_grow(fd2); - - close(fd2); - close(fd); -} - /* * Test sharing via dup() * Test that seals are shared between dupped FDs and they're all equal. @@ -875,15 +807,6 @@ static void test_share_dup(char *banner, char *b_suffix) { int fd, fd2; - /* - * hugetlbfs does not contain sealing support. Perform some - * basic testing on dup'ed fd instead via hugetlbfs_dup. - */ - if (hugetlbfs_test) { - hugetlbfs_dup(b_suffix); - return; - } - printf("%s %s %s\n", MEMFD_STR, banner, b_suffix); fd = mfd_assert_new("kern_memfd_share_dup", @@ -926,10 +849,6 @@ static void test_share_mmap(char *banner, char *b_suffix) int fd; void *p; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s %s %s\n", MEMFD_STR, banner, b_suffix); fd = mfd_assert_new("kern_memfd_share_mmap", @@ -954,32 +873,6 @@ static void test_share_mmap(char *banner, char *b_suffix) close(fd); } -/* - * Basic test to make sure we can open the hugetlbfs fd via /proc and - * perform some simple operations on it. - */ -static void hugetlbfs_proc_open(char *b_suffix) -{ - int fd, fd2; - - printf("%s HUGETLBFS-PROC-OPEN %s\n", MEMFD_STR, b_suffix); - - fd = mfd_assert_new("kern_memfd_share_open", - mfd_def_size, - MFD_CLOEXEC); - - fd2 = mfd_assert_open(fd, O_RDWR, 0); - - mfd_assert_read(fd); - mfd_assert_write(fd); - - mfd_assert_shrink(fd2); - mfd_assert_grow(fd2); - - close(fd2); - close(fd); -} - /* * Test sealing with open(/proc/self/fd/%d) * Via /proc we can get access to a separate file-context for the same memfd. @@ -990,15 +883,6 @@ static void test_share_open(char *banner, char *b_suffix) { int fd, fd2; - /* - * hugetlbfs does not contain sealing support. So test basic - * functionality of using /proc fd via hugetlbfs_proc_open - */ - if (hugetlbfs_test) { - hugetlbfs_proc_open(b_suffix); - return; - } - printf("%s %s %s\n", MEMFD_STR, banner, b_suffix); fd = mfd_assert_new("kern_memfd_share_open", @@ -1042,10 +926,6 @@ static void test_share_fork(char *banner, char *b_suffix) int fd; pid_t pid; - /* hugetlbfs does not contain sealing support */ - if (hugetlbfs_test) - return; - printf("%s %s %s\n", MEMFD_STR, banner, b_suffix); fd = mfd_assert_new("kern_memfd_share_fork", -- 2.15.0.rc0.40.gaefcc5f6f
