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-rw-r--r--tools/testing/selftests/mm/mlock2-tests.c282
1 files changed, 116 insertions, 166 deletions
diff --git a/tools/testing/selftests/mm/mlock2-tests.c b/tools/testing/selftests/mm/mlock2-tests.c
index 80cddc0de2..26f744188a 100644
--- a/tools/testing/selftests/mm/mlock2-tests.c
+++ b/tools/testing/selftests/mm/mlock2-tests.c
@@ -7,9 +7,8 @@
#include <sys/time.h>
#include <sys/resource.h>
#include <stdbool.h>
-#include "mlock2.h"
-
#include "../kselftest.h"
+#include "mlock2.h"
struct vm_boundaries {
unsigned long start;
@@ -40,14 +39,14 @@ static int get_vm_area(unsigned long addr, struct vm_boundaries *area)
while(fgets(line, 1024, file)) {
end_addr = strchr(line, '-');
if (!end_addr) {
- printf("cannot parse /proc/self/maps\n");
+ ksft_print_msg("cannot parse /proc/self/maps\n");
goto out;
}
*end_addr = '\0';
end_addr++;
stop = strchr(end_addr, ' ');
if (!stop) {
- printf("cannot parse /proc/self/maps\n");
+ ksft_print_msg("cannot parse /proc/self/maps\n");
goto out;
}
@@ -78,7 +77,7 @@ static bool is_vmflag_set(unsigned long addr, const char *vmflag)
smaps = seek_to_smaps_entry(addr);
if (!smaps) {
- printf("Unable to parse /proc/self/smaps\n");
+ ksft_print_msg("Unable to parse /proc/self/smaps\n");
goto out;
}
@@ -115,7 +114,7 @@ static unsigned long get_value_for_name(unsigned long addr, const char *name)
smaps = seek_to_smaps_entry(addr);
if (!smaps) {
- printf("Unable to parse /proc/self/smaps\n");
+ ksft_print_msg("Unable to parse /proc/self/smaps\n");
goto out;
}
@@ -129,7 +128,7 @@ static unsigned long get_value_for_name(unsigned long addr, const char *name)
value_ptr = line + strlen(name);
if (sscanf(value_ptr, "%lu kB", &value) < 1) {
- printf("Unable to parse smaps entry for Size\n");
+ ksft_print_msg("Unable to parse smaps entry for Size\n");
goto out;
}
break;
@@ -180,57 +179,45 @@ static int lock_check(unsigned long addr)
static int unlock_lock_check(char *map)
{
if (is_vmflag_set((unsigned long)map, LOCKED)) {
- printf("VMA flag %s is present on page 1 after unlock\n", LOCKED);
+ ksft_print_msg("VMA flag %s is present on page 1 after unlock\n", LOCKED);
return 1;
}
return 0;
}
-static int test_mlock_lock()
+static void test_mlock_lock(void)
{
char *map;
- int ret = 1;
unsigned long page_size = getpagesize();
map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- if (map == MAP_FAILED) {
- perror("test_mlock_locked mmap");
- goto out;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
if (mlock2_(map, 2 * page_size, 0)) {
- if (errno == ENOSYS) {
- printf("Cannot call new mlock family, skipping test\n");
- _exit(KSFT_SKIP);
- }
- perror("mlock2(0)");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("mlock2(0): %s\n", strerror(errno));
}
- if (!lock_check((unsigned long)map))
- goto unmap;
+ ksft_test_result(lock_check((unsigned long)map), "%s: Locked\n", __func__);
/* Now unlock and recheck attributes */
if (munlock(map, 2 * page_size)) {
- perror("munlock()");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("munlock(): %s\n", strerror(errno));
}
- ret = unlock_lock_check(map);
-
-unmap:
+ ksft_test_result(!unlock_lock_check(map), "%s: Locked\n", __func__);
munmap(map, 2 * page_size);
-out:
- return ret;
}
static int onfault_check(char *map)
{
*map = 'a';
if (!is_vma_lock_on_fault((unsigned long)map)) {
- printf("VMA is not marked for lock on fault\n");
+ ksft_print_msg("VMA is not marked for lock on fault\n");
return 1;
}
@@ -243,172 +230,131 @@ static int unlock_onfault_check(char *map)
if (is_vma_lock_on_fault((unsigned long)map) ||
is_vma_lock_on_fault((unsigned long)map + page_size)) {
- printf("VMA is still lock on fault after unlock\n");
+ ksft_print_msg("VMA is still lock on fault after unlock\n");
return 1;
}
return 0;
}
-static int test_mlock_onfault()
+static void test_mlock_onfault(void)
{
char *map;
- int ret = 1;
unsigned long page_size = getpagesize();
map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- if (map == MAP_FAILED) {
- perror("test_mlock_locked mmap");
- goto out;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) {
- if (errno == ENOSYS) {
- printf("Cannot call new mlock family, skipping test\n");
- _exit(KSFT_SKIP);
- }
- perror("mlock2(MLOCK_ONFAULT)");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("mlock2(MLOCK_ONFAULT): %s\n", strerror(errno));
}
- if (onfault_check(map))
- goto unmap;
+ ksft_test_result(!onfault_check(map), "%s: VMA marked for lock on fault\n", __func__);
/* Now unlock and recheck attributes */
if (munlock(map, 2 * page_size)) {
- if (errno == ENOSYS) {
- printf("Cannot call new mlock family, skipping test\n");
- _exit(KSFT_SKIP);
- }
- perror("munlock()");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("munlock(): %s\n", strerror(errno));
}
- ret = unlock_onfault_check(map);
-unmap:
+ ksft_test_result(!unlock_onfault_check(map), "VMA open lock after fault\n");
munmap(map, 2 * page_size);
-out:
- return ret;
}
-static int test_lock_onfault_of_present()
+static void test_lock_onfault_of_present(void)
{
char *map;
- int ret = 1;
unsigned long page_size = getpagesize();
map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- if (map == MAP_FAILED) {
- perror("test_mlock_locked mmap");
- goto out;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
*map = 'a';
if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) {
- if (errno == ENOSYS) {
- printf("Cannot call new mlock family, skipping test\n");
- _exit(KSFT_SKIP);
- }
- perror("mlock2(MLOCK_ONFAULT)");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_test_result_fail("mlock2(MLOCK_ONFAULT) error: %s", strerror(errno));
}
- if (!is_vma_lock_on_fault((unsigned long)map) ||
- !is_vma_lock_on_fault((unsigned long)map + page_size)) {
- printf("VMA with present pages is not marked lock on fault\n");
- goto unmap;
- }
- ret = 0;
-unmap:
+ ksft_test_result(is_vma_lock_on_fault((unsigned long)map) ||
+ is_vma_lock_on_fault((unsigned long)map + page_size),
+ "VMA with present pages is not marked lock on fault\n");
munmap(map, 2 * page_size);
-out:
- return ret;
}
-static int test_munlockall()
+static void test_munlockall0(void)
{
char *map;
- int ret = 1;
unsigned long page_size = getpagesize();
map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
-
- if (map == MAP_FAILED) {
- perror("test_munlockall mmap");
- goto out;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s\n", strerror(errno));
if (mlockall(MCL_CURRENT)) {
- perror("mlockall(MCL_CURRENT)");
- goto out;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("mlockall(MCL_CURRENT): %s\n", strerror(errno));
}
- if (!lock_check((unsigned long)map))
- goto unmap;
+ ksft_test_result(lock_check((unsigned long)map), "%s: Locked memory area\n", __func__);
if (munlockall()) {
- perror("munlockall()");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("munlockall(): %s\n", strerror(errno));
}
- if (unlock_lock_check(map))
- goto unmap;
-
+ ksft_test_result(!unlock_lock_check(map), "%s: No locked memory\n", __func__);
munmap(map, 2 * page_size);
+}
+
+static void test_munlockall1(void)
+{
+ char *map;
+ unsigned long page_size = getpagesize();
map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
-
- if (map == MAP_FAILED) {
- perror("test_munlockall second mmap");
- goto out;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
if (mlockall(MCL_CURRENT | MCL_ONFAULT)) {
- perror("mlockall(MCL_CURRENT | MCL_ONFAULT)");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("mlockall(MCL_CURRENT | MCL_ONFAULT): %s\n", strerror(errno));
}
- if (onfault_check(map))
- goto unmap;
+ ksft_test_result(!onfault_check(map), "%s: VMA marked for lock on fault\n", __func__);
if (munlockall()) {
- perror("munlockall()");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("munlockall(): %s\n", strerror(errno));
}
- if (unlock_onfault_check(map))
- goto unmap;
+ ksft_test_result(!unlock_onfault_check(map), "%s: Unlocked\n", __func__);
if (mlockall(MCL_CURRENT | MCL_FUTURE)) {
- perror("mlockall(MCL_CURRENT | MCL_FUTURE)");
- goto out;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("mlockall(MCL_CURRENT | MCL_FUTURE): %s\n", strerror(errno));
}
- if (!lock_check((unsigned long)map))
- goto unmap;
+ ksft_test_result(lock_check((unsigned long)map), "%s: Locked\n", __func__);
if (munlockall()) {
- perror("munlockall()");
- goto unmap;
+ munmap(map, 2 * page_size);
+ ksft_exit_fail_msg("munlockall() %s\n", strerror(errno));
}
- ret = unlock_lock_check(map);
-
-unmap:
+ ksft_test_result(!unlock_lock_check(map), "%s: No locked memory\n", __func__);
munmap(map, 2 * page_size);
-out:
- munlockall();
- return ret;
}
-static int test_vma_management(bool call_mlock)
+static void test_vma_management(bool call_mlock)
{
- int ret = 1;
void *map;
unsigned long page_size = getpagesize();
struct vm_boundaries page1;
@@ -417,25 +363,19 @@ static int test_vma_management(bool call_mlock)
map = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- if (map == MAP_FAILED) {
- perror("mmap()");
- return ret;
- }
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
if (call_mlock && mlock2_(map, 3 * page_size, MLOCK_ONFAULT)) {
- if (errno == ENOSYS) {
- printf("Cannot call new mlock family, skipping test\n");
- _exit(KSFT_SKIP);
- }
- perror("mlock(ONFAULT)\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("mlock error: %s", strerror(errno));
}
if (get_vm_area((unsigned long)map, &page1) ||
get_vm_area((unsigned long)map + page_size, &page2) ||
get_vm_area((unsigned long)map + page_size * 2, &page3)) {
- printf("couldn't find mapping in /proc/self/maps\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
}
/*
@@ -444,76 +384,86 @@ static int test_vma_management(bool call_mlock)
* not a failure)
*/
if (page1.start != page2.start || page2.start != page3.start) {
- printf("VMAs are not merged to start, aborting test\n");
- ret = 0;
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("VMAs are not merged to start, aborting test");
}
if (munlock(map + page_size, page_size)) {
- perror("munlock()");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("munlock(): %s", strerror(errno));
}
if (get_vm_area((unsigned long)map, &page1) ||
get_vm_area((unsigned long)map + page_size, &page2) ||
get_vm_area((unsigned long)map + page_size * 2, &page3)) {
- printf("couldn't find mapping in /proc/self/maps\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
}
/* All three VMAs should be different */
if (page1.start == page2.start || page2.start == page3.start) {
- printf("failed to split VMA for munlock\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("failed to split VMA for munlock");
}
/* Now unlock the first and third page and check the VMAs again */
if (munlock(map, page_size * 3)) {
- perror("munlock()");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("munlock(): %s", strerror(errno));
}
if (get_vm_area((unsigned long)map, &page1) ||
get_vm_area((unsigned long)map + page_size, &page2) ||
get_vm_area((unsigned long)map + page_size * 2, &page3)) {
- printf("couldn't find mapping in /proc/self/maps\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
}
/* Now all three VMAs should be the same */
if (page1.start != page2.start || page2.start != page3.start) {
- printf("failed to merge VMAs after munlock\n");
- goto out;
+ munmap(map, 3 * page_size);
+ ksft_test_result_fail("failed to merge VMAs after munlock");
}
- ret = 0;
-out:
+ ksft_test_result_pass("%s call_mlock %d\n", __func__, call_mlock);
munmap(map, 3 * page_size);
- return ret;
}
-static int test_mlockall(int (test_function)(bool call_mlock))
+static void test_mlockall(void)
{
- int ret = 1;
+ if (mlockall(MCL_CURRENT | MCL_ONFAULT | MCL_FUTURE))
+ ksft_exit_fail_msg("mlockall failed: %s\n", strerror(errno));
- if (mlockall(MCL_CURRENT | MCL_ONFAULT | MCL_FUTURE)) {
- perror("mlockall");
- return ret;
- }
-
- ret = test_function(false);
+ test_vma_management(false);
munlockall();
- return ret;
}
int main(int argc, char **argv)
{
- int ret = 0;
- ret += test_mlock_lock();
- ret += test_mlock_onfault();
- ret += test_munlockall();
- ret += test_lock_onfault_of_present();
- ret += test_vma_management(true);
- ret += test_mlockall(test_vma_management);
- return ret;
+ int ret, size = 3 * getpagesize();
+ void *map;
+
+ ksft_print_header();
+
+ map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+ if (map == MAP_FAILED)
+ ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+ ret = mlock2_(map, size, MLOCK_ONFAULT);
+ if (ret && errno == ENOSYS)
+ ksft_finished();
+
+ munmap(map, size);
+
+ ksft_set_plan(13);
+
+ test_mlock_lock();
+ test_mlock_onfault();
+ test_munlockall0();
+ test_munlockall1();
+ test_lock_onfault_of_present();
+ test_vma_management(true);
+ test_mlockall();
+
+ ksft_finished();
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 05:45:08 +0000