[PATCH v4 5/7] selftests/mm: hugetlb-read-hwpoison: conform test to TAP format output

From: Muhammad Usama Anjum
Date: Fri Jan 26 2024 - 06:22:35 EST

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Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.

Reviewed-by: Jiaqi Yan <jiaqiyan@xxxxxxxxxx>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
---
Changes since v3:
- Rebased on top of next-20240125
- Added reviewed-by tag
- Tested this on top of lates next which has the fix inside the kernel

Changes since v2:
- Use ksft_perror as short hand instead of missing strerror(errno) at
one place
---
.../selftests/mm/hugetlb-read-hwpoison.c | 116 ++++++++----------
1 file changed, 54 insertions(+), 62 deletions(-)

diff --git a/tools/testing/selftests/mm/hugetlb-read-hwpoison.c b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c
index ba6cc6f9cabcd..23b41b88c6aff 100644
--- a/tools/testing/selftests/mm/hugetlb-read-hwpoison.c
+++ b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c
@@ -58,8 +58,8 @@ static bool verify_chunk(char *buf, size_t len, char val)

for (i = 0; i < len; ++i) {
if (buf[i] != val) {
- printf(PREFIX ERROR_PREFIX "check fail: buf[%lu] = %u != %u\n",
- i, buf[i], val);
+ ksft_print_msg(PREFIX ERROR_PREFIX "check fail: buf[%lu] = %u != %u\n",
+ i, buf[i], val);
return false;
}
}
@@ -75,21 +75,21 @@ static bool seek_read_hugepage_filemap(int fd, size_t len, size_t wr_chunk_size,
ssize_t total_ret_count = 0;
char val = offset / wr_chunk_size + offset % wr_chunk_size;

- printf(PREFIX PREFIX "init val=%u with offset=0x%lx\n", val, offset);
- printf(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
- expected);
+ ksft_print_msg(PREFIX PREFIX "init val=%u with offset=0x%lx\n", val, offset);
+ ksft_print_msg(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
+ expected);
if (lseek(fd, offset, SEEK_SET) < 0) {
- perror(PREFIX ERROR_PREFIX "seek failed");
+ ksft_perror(PREFIX ERROR_PREFIX "seek failed");
return false;
}

while (offset + total_ret_count < len) {
ret_count = read(fd, buf, wr_chunk_size);
if (ret_count == 0) {
- printf(PREFIX PREFIX "read reach end of the file\n");
+ ksft_print_msg(PREFIX PREFIX "read reach end of the file\n");
break;
} else if (ret_count < 0) {
- perror(PREFIX ERROR_PREFIX "read failed");
+ ksft_perror(PREFIX ERROR_PREFIX "read failed");
break;
}
++val;
@@ -98,8 +98,8 @@ static bool seek_read_hugepage_filemap(int fd, size_t len, size_t wr_chunk_size,

total_ret_count += ret_count;
}
- printf(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
- total_ret_count);
+ ksft_print_msg(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
+ total_ret_count);

return total_ret_count == expected;
}
@@ -112,15 +112,15 @@ static bool read_hugepage_filemap(int fd, size_t len,
ssize_t total_ret_count = 0;
char val = 0;

- printf(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
- expected);
+ ksft_print_msg(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
+ expected);
while (total_ret_count < len) {
ret_count = read(fd, buf, wr_chunk_size);
if (ret_count == 0) {
- printf(PREFIX PREFIX "read reach end of the file\n");
+ ksft_print_msg(PREFIX PREFIX "read reach end of the file\n");
break;
} else if (ret_count < 0) {
- perror(PREFIX ERROR_PREFIX "read failed");
+ ksft_perror(PREFIX ERROR_PREFIX "read failed");
break;
}
++val;
@@ -129,8 +129,8 @@ static bool read_hugepage_filemap(int fd, size_t len,

total_ret_count += ret_count;
}
- printf(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
- total_ret_count);
+ ksft_print_msg(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
+ total_ret_count);

return total_ret_count == expected;
}
@@ -142,14 +142,14 @@ test_hugetlb_read(int fd, size_t len, size_t wr_chunk_size)
char *filemap = NULL;

if (ftruncate(fd, len) < 0) {
- perror(PREFIX ERROR_PREFIX "ftruncate failed");
+ ksft_perror(PREFIX ERROR_PREFIX "ftruncate failed");
return status;
}

filemap = mmap(NULL, len, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_POPULATE, fd, 0);
if (filemap == MAP_FAILED) {
- perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
+ ksft_perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
goto done;
}

@@ -162,7 +162,7 @@ test_hugetlb_read(int fd, size_t len, size_t wr_chunk_size)
munmap(filemap, len);
done:
if (ftruncate(fd, 0) < 0) {
- perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
+ ksft_perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
status = TEST_FAILED;
}

@@ -179,14 +179,14 @@ test_hugetlb_read_hwpoison(int fd, size_t len, size_t wr_chunk_size,
const unsigned long pagesize = getpagesize();

if (ftruncate(fd, len) < 0) {
- perror(PREFIX ERROR_PREFIX "ftruncate failed");
+ ksft_perror(PREFIX ERROR_PREFIX "ftruncate failed");
return status;
}

filemap = mmap(NULL, len, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_POPULATE, fd, 0);
if (filemap == MAP_FAILED) {
- perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
+ ksft_perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
goto done;
}

@@ -201,7 +201,7 @@ test_hugetlb_read_hwpoison(int fd, size_t len, size_t wr_chunk_size,
*/
hwp_addr = filemap + len / 2 + pagesize;
if (madvise(hwp_addr, pagesize, MADV_HWPOISON) < 0) {
- perror(PREFIX ERROR_PREFIX "MADV_HWPOISON failed");
+ ksft_perror(PREFIX ERROR_PREFIX "MADV_HWPOISON failed");
goto unmap;
}

@@ -228,7 +228,7 @@ test_hugetlb_read_hwpoison(int fd, size_t len, size_t wr_chunk_size,
munmap(filemap, len);
done:
if (ftruncate(fd, 0) < 0) {
- perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
+ ksft_perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
status = TEST_FAILED;
}

@@ -240,27 +240,32 @@ static int create_hugetlbfs_file(struct statfs *file_stat)
int fd;

fd = memfd_create("hugetlb_tmp", MFD_HUGETLB);
- if (fd < 0) {
- perror(PREFIX ERROR_PREFIX "could not open hugetlbfs file");
- return -1;
- }
+ if (fd < 0)
+ ksft_exit_fail_msg(PREFIX ERROR_PREFIX "could not open hugetlbfs file: %s\n",
+ strerror(errno));

memset(file_stat, 0, sizeof(*file_stat));
+
if (fstatfs(fd, file_stat)) {
- perror(PREFIX ERROR_PREFIX "fstatfs failed");
- goto close;
+ close(fd);
+ ksft_exit_fail_msg(PREFIX ERROR_PREFIX "fstatfs failed: %s\n", strerror(errno));
}
if (file_stat->f_type != HUGETLBFS_MAGIC) {
- printf(PREFIX ERROR_PREFIX "not hugetlbfs file\n");
- goto close;
+ close(fd);
+ ksft_exit_fail_msg(PREFIX ERROR_PREFIX "not hugetlbfs file\n");
}

return fd;
-close:
- close(fd);
- return -1;
}

+#define KSFT_PRINT_MSG(status, fmt, ...) \
+ do { \
+ if (status == TEST_SKIPPED) \
+ ksft_test_result_skip(fmt, __VA_ARGS__); \
+ else \
+ ksft_test_result(status == TEST_PASSED, fmt, __VA_ARGS__); \
+ } while (0)
+
int main(void)
{
int fd;
@@ -273,50 +278,37 @@ int main(void)
};
size_t i;

+ ksft_print_header();
+ ksft_set_plan(12);
+
for (i = 0; i < ARRAY_SIZE(wr_chunk_sizes); ++i) {
- printf("Write/read chunk size=0x%lx\n",
- wr_chunk_sizes[i]);
+ ksft_print_msg("Write/read chunk size=0x%lx\n",
+ wr_chunk_sizes[i]);

fd = create_hugetlbfs_file(&file_stat);
- if (fd < 0)
- goto create_failure;
- printf(PREFIX "HugeTLB read regression test...\n");
+ ksft_print_msg(PREFIX "HugeTLB read regression test...\n");
status = test_hugetlb_read(fd, file_stat.f_bsize,
wr_chunk_sizes[i]);
- printf(PREFIX "HugeTLB read regression test...%s\n",
- status_to_str(status));
+ KSFT_PRINT_MSG(status, PREFIX "HugeTLB read regression test...%s\n",
+ status_to_str(status));
close(fd);
- if (status == TEST_FAILED)
- return -1;

fd = create_hugetlbfs_file(&file_stat);
- if (fd < 0)
- goto create_failure;
- printf(PREFIX "HugeTLB read HWPOISON test...\n");
+ ksft_print_msg(PREFIX "HugeTLB read HWPOISON test...\n");
status = test_hugetlb_read_hwpoison(fd, file_stat.f_bsize,
wr_chunk_sizes[i], false);
- printf(PREFIX "HugeTLB read HWPOISON test...%s\n",
- status_to_str(status));
+ KSFT_PRINT_MSG(status, PREFIX "HugeTLB read HWPOISON test...%s\n",
+ status_to_str(status));
close(fd);
- if (status == TEST_FAILED)
- return -1;

fd = create_hugetlbfs_file(&file_stat);
- if (fd < 0)
- goto create_failure;
- printf(PREFIX "HugeTLB seek then read HWPOISON test...\n");
+ ksft_print_msg(PREFIX "HugeTLB seek then read HWPOISON test...\n");
status = test_hugetlb_read_hwpoison(fd, file_stat.f_bsize,
wr_chunk_sizes[i], true);
- printf(PREFIX "HugeTLB seek then read HWPOISON test...%s\n",
- status_to_str(status));
+ KSFT_PRINT_MSG(status, PREFIX "HugeTLB seek then read HWPOISON test...%s\n",
+ status_to_str(status));
close(fd);
- if (status == TEST_FAILED)
- return -1;
}

- return 0;
-
-create_failure:
- printf(ERROR_PREFIX "Abort test: failed to create hugetlbfs file\n");
- return -1;
+ ksft_finished();
}
--
2.42.0

Next message: Muhammad Usama Anjum: "[PATCH v4 6/7] selftests/mm: ksm_tests: conform test to TAP format output"
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