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Message-ID: <20240111115639.3981970-3-usama.anjum@collabora.com>
Date: Thu, 11 Jan 2024 16:56:32 +0500
From: Muhammad Usama Anjum <usama.anjum@...labora.com>
To: Andrew Morton <akpm@...ux-foundation.org>,
Shuah Khan <shuah@...nel.org>
Cc: Muhammad Usama Anjum <usama.anjum@...labora.com>,
kernel@...labora.com,
linux-mm@...ck.org,
linux-kselftest@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] selftests/mm: hugetlb-madvise: conform test to TAP format output
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
---
tools/testing/selftests/mm/hugetlb-madvise.c | 209 +++++++------------
1 file changed, 81 insertions(+), 128 deletions(-)
diff --git a/tools/testing/selftests/mm/hugetlb-madvise.c b/tools/testing/selftests/mm/hugetlb-madvise.c
index f32d99565c5e..4848200f801f 100644
--- a/tools/testing/selftests/mm/hugetlb-madvise.c
+++ b/tools/testing/selftests/mm/hugetlb-madvise.c
@@ -19,19 +19,14 @@
#include <sys/mman.h>
#include <fcntl.h>
#include "vm_util.h"
+#include "../kselftest.h"
#define MIN_FREE_PAGES 20
#define NR_HUGE_PAGES 10 /* common number of pages to map/allocate */
-#define validate_free_pages(exp_free) \
- do { \
- int fhp = get_free_hugepages(); \
- if (fhp != (exp_free)) { \
- printf("Unexpected number of free huge " \
- "pages line %d\n", __LINE__); \
- exit(1); \
- } \
- } while (0)
+#define validate_free_pages(exp_free) \
+ ksft_test_result(get_free_hugepages() == (exp_free), \
+ "Validation of free pages (%d)\n", __LINE__)
unsigned long huge_page_size;
unsigned long base_page_size;
@@ -64,28 +59,27 @@ int main(int argc, char **argv)
int fd;
int ret;
+ ksft_print_header();
+
huge_page_size = default_huge_page_size();
- if (!huge_page_size) {
- printf("Unable to determine huge page size, exiting!\n");
- exit(1);
- }
+ if (!huge_page_size)
+ ksft_exit_fail_msg("Unable to determine huge page size, exiting!\n");
+
base_page_size = sysconf(_SC_PAGE_SIZE);
- if (!huge_page_size) {
- printf("Unable to determine base page size, exiting!\n");
- exit(1);
- }
+ if (!huge_page_size)
+ ksft_exit_fail_msg("Unable to determine base page size, exiting!\n");
free_hugepages = get_free_hugepages();
if (free_hugepages < MIN_FREE_PAGES) {
- printf("Not enough free huge pages to test, exiting!\n");
- exit(1);
+ ksft_print_msg("Not enough free huge pages to test, exiting!\n");
+ ksft_finished();
}
fd = memfd_create(argv[0], MFD_HUGETLB);
- if (fd < 0) {
- perror("memfd_create() failed");
- exit(1);
- }
+ if (fd < 0)
+ ksft_exit_fail_msg("memfd_create() failed\n");
+
+ ksft_set_plan(37);
/*
* Test validity of MADV_DONTNEED addr and length arguments. mmap
@@ -97,16 +91,13 @@ int main(int argc, char **argv)
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
-1, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
if (munmap(addr, huge_page_size) ||
- munmap(addr + (NR_HUGE_PAGES + 1) * huge_page_size,
- huge_page_size)) {
- perror("munmap");
- exit(1);
- }
+ munmap(addr + (NR_HUGE_PAGES + 1) * huge_page_size, huge_page_size))
+ ksft_exit_fail_msg("munmap: %s\n", strerror(errno));
+
addr = addr + huge_page_size;
write_fault_pages(addr, NR_HUGE_PAGES);
@@ -114,21 +105,13 @@ int main(int argc, char **argv)
/* addr before mapping should fail */
ret = madvise(addr - base_page_size, NR_HUGE_PAGES * huge_page_size,
- MADV_DONTNEED);
- if (!ret) {
- printf("Unexpected success of madvise call with invalid addr line %d\n",
- __LINE__);
- exit(1);
- }
+ MADV_DONTNEED);
+ ksft_test_result(ret, "The madvise call with invalid address\n");
/* addr + length after mapping should fail */
ret = madvise(addr, (NR_HUGE_PAGES * huge_page_size) + base_page_size,
- MADV_DONTNEED);
- if (!ret) {
- printf("Unexpected success of madvise call with invalid length line %d\n",
- __LINE__);
- exit(1);
- }
+ MADV_DONTNEED);
+ ksft_test_result(ret, "The madvise call with invalid address\n");
(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
@@ -139,10 +122,9 @@ int main(int argc, char **argv)
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
-1, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
write_fault_pages(addr, NR_HUGE_PAGES);
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
@@ -150,19 +132,12 @@ int main(int argc, char **argv)
ret = madvise(addr + base_page_size,
NR_HUGE_PAGES * huge_page_size - base_page_size,
MADV_DONTNEED);
- if (!ret) {
- printf("Unexpected success of madvise call with unaligned start address %d\n",
- __LINE__);
- exit(1);
- }
+ ksft_test_result(ret, "The madvise call with unaligned start address\n");
/* addr + length should be aligned down to huge page size */
- if (madvise(addr,
- ((NR_HUGE_PAGES - 1) * huge_page_size) + base_page_size,
- MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, ((NR_HUGE_PAGES - 1) * huge_page_size) + base_page_size,
+ MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise call with aligned start address\n");
/* should free all but last page in mapping */
validate_free_pages(free_hugepages - 1);
@@ -177,17 +152,14 @@ int main(int argc, char **argv)
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
-1, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
write_fault_pages(addr, NR_HUGE_PAGES);
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_DONTNEED on anonymous private mapping\n");
/* should free all pages in mapping */
validate_free_pages(free_hugepages);
@@ -197,29 +169,25 @@ int main(int argc, char **argv)
/*
* Test MADV_DONTNEED on private mapping of hugetlb file
*/
- if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
- perror("fallocate");
- exit(1);
- }
+ if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size))
+ ksft_exit_fail_msg("fallocate: %s\n", strerror(errno));
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE, fd, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
/* read should not consume any pages */
read_fault_pages(addr, NR_HUGE_PAGES);
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/* madvise should not free any pages */
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_DONTNEED on private mapping of file\n");
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/* writes should allocate private pages */
@@ -227,10 +195,9 @@ int main(int argc, char **argv)
validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
/* madvise should free private pages */
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_DONTNEED on private mapping of file\n");
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/* writes should allocate private pages */
@@ -245,10 +212,9 @@ int main(int argc, char **argv)
* implementation.
*/
if (fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
- 0, NR_HUGE_PAGES * huge_page_size)) {
- perror("fallocate");
- exit(1);
- }
+ 0, NR_HUGE_PAGES * huge_page_size))
+ ksft_exit_fail_msg("fallocate: %s\n", strerror(errno));
+
validate_free_pages(free_hugepages);
(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
@@ -256,29 +222,25 @@ int main(int argc, char **argv)
/*
* Test MADV_DONTNEED on shared mapping of hugetlb file
*/
- if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
- perror("fallocate");
- exit(1);
- }
+ if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size))
+ ksft_exit_fail_msg("fallocate: %s\n", strerror(errno));
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
/* write should not consume any pages */
write_fault_pages(addr, NR_HUGE_PAGES);
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/* madvise should not free any pages */
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_DONTNEED on shared mapping of file\n");
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/*
@@ -286,29 +248,25 @@ int main(int argc, char **argv)
*
* madvise is same as hole punch and should free all pages.
*/
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE);
+ ksft_test_result(!ret, "The madvise MADV_REMOVE on shared mapping of file\n");
+
validate_free_pages(free_hugepages);
(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
/*
* Test MADV_REMOVE on shared and private mapping of hugetlb file
*/
- if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
- perror("fallocate");
- exit(1);
- }
+ if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size))
+ ksft_exit_fail_msg("fallocate: %s\n", strerror(errno));
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
PROT_READ | PROT_WRITE,
MAP_SHARED, fd, 0);
- if (addr == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
/* shared write should not consume any additional pages */
write_fault_pages(addr, NR_HUGE_PAGES);
@@ -317,10 +275,8 @@ int main(int argc, char **argv)
addr2 = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE, fd, 0);
- if (addr2 == MAP_FAILED) {
- perror("mmap");
- exit(1);
- }
+ if (addr2 == MAP_FAILED)
+ ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
/* private read should not consume any pages */
read_fault_pages(addr2, NR_HUGE_PAGES);
@@ -331,17 +287,15 @@ int main(int argc, char **argv)
validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
/* madvise of shared mapping should not free any pages */
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_REMOVE on shared mapping of file\n");
+
validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
/* madvise of private mapping should free private pages */
- if (madvise(addr2, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr2, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED);
+ ksft_test_result(!ret, "The madvise MADV_REMOVE on shared mapping of file\n");
+
validate_free_pages(free_hugepages - NR_HUGE_PAGES);
/* private write should consume additional pages again */
@@ -353,15 +307,14 @@ int main(int argc, char **argv)
* not correct. private pages should not be freed, but this is
* expected. See comment associated with FALLOC_FL_PUNCH_HOLE call.
*/
- if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE)) {
- perror("madvise");
- exit(1);
- }
+ ret = madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE);
+ ksft_test_result(!ret, "The madvise MADV_REMOVE on shared mapping of file\n");
+
validate_free_pages(free_hugepages);
(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
(void)munmap(addr2, NR_HUGE_PAGES * huge_page_size);
close(fd);
- return 0;
+ ksft_finished();
}
--
2.42.0
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