The patch titled
Subject: selftests/mm: mrelease_test: conform test to TAP format output
has been added to the -mm mm-unstable branch. Its filename is
selftests-mm-mrelease_test-conform-test-to-tap-format-output.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-mrelease_test-conform-test-to-tap-format-output.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Subject: selftests/mm: mrelease_test: conform test to TAP format output
Date: Wed, 31 Jan 2024 19:05:16 +0500
Conform the layout, informational and status messages to TAP. No
functional change is intended other than the layout of output messages.
Link: https://lkml.kernel.org/r/20240131140528.320252-6-usama.anjum@xxxxxxxxxxxxx
Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/mm/mrelease_test.c | 80 +++++++------------
1 file changed, 33 insertions(+), 47 deletions(-)
--- a/tools/testing/selftests/mm/mrelease_test.c~selftests-mm-mrelease_test-conform-test-to-tap-format-output
+++ a/tools/testing/selftests/mm/mrelease_test.c
@@ -26,19 +26,15 @@ static int alloc_noexit(unsigned long nr
buf = (char *)mmap(NULL, nr_pages * psize(), PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, 0, 0);
- if (buf == MAP_FAILED) {
- perror("mmap failed, halting the test");
- return KSFT_FAIL;
- }
+ if (buf == MAP_FAILED)
+ ksft_exit_fail_msg("mmap failed, halting the test: %s\n", strerror(errno));
for (i = 0; i < nr_pages; i++)
*((unsigned long *)(buf + (i * psize()))) = i;
/* Signal the parent that the child is ready */
- if (write(pipefd, "", 1) < 0) {
- perror("write");
- return KSFT_FAIL;
- }
+ if (write(pipefd, "", 1) < 0)
+ ksft_exit_fail_msg("write: %s\n", strerror(errno));
/* Wait to be killed (when reparenting happens) */
while (getppid() == ppid && timeout > 0) {
@@ -54,23 +50,17 @@ static int alloc_noexit(unsigned long nr
/* The process_mrelease calls in this test are expected to fail */
static void run_negative_tests(int pidfd)
{
- int res;
/* Test invalid flags. Expect to fail with EINVAL error code. */
if (!syscall(__NR_process_mrelease, pidfd, (unsigned int)-1) ||
errno != EINVAL) {
- res = (errno == ENOSYS ? KSFT_SKIP : KSFT_FAIL);
- perror("process_mrelease with wrong flags");
- exit(res);
+ ksft_exit_fail_msg("process_mrelease with wrong flags: %s\n", strerror(errno));
}
/*
* Test reaping while process is alive with no pending SIGKILL.
* Expect to fail with EINVAL error code.
*/
- if (!syscall(__NR_process_mrelease, pidfd, 0) || errno != EINVAL) {
- res = (errno == ENOSYS ? KSFT_SKIP : KSFT_FAIL);
- perror("process_mrelease on a live process");
- exit(res);
- }
+ if (!syscall(__NR_process_mrelease, pidfd, 0) || errno != EINVAL)
+ ksft_exit_fail_msg("process_mrelease on a live process: %s\n", strerror(errno));
}
static int child_main(int pipefd[], size_t size)
@@ -93,11 +83,18 @@ int main(void)
char byte;
int res;
+ ksft_print_header();
+ ksft_set_plan(1);
+
/* Test a wrong pidfd */
if (!syscall(__NR_process_mrelease, -1, 0) || errno != EBADF) {
- res = (errno == ENOSYS ? KSFT_SKIP : KSFT_FAIL);
- perror("process_mrelease with wrong pidfd");
- exit(res);
+ if (errno == ENOSYS) {
+ ksft_test_result_skip("process_mrelease not implemented\n");
+ ksft_finished();
+ } else {
+ ksft_exit_fail_msg("process_mrelease with wrong pidfd: %s",
+ strerror(errno));
+ }
}
/* Start the test with 1MB child memory allocation */
@@ -107,16 +104,14 @@ retry:
* Pipe for the child to signal when it's done allocating
* memory
*/
- if (pipe(pipefd)) {
- perror("pipe");
- exit(KSFT_FAIL);
- }
+ if (pipe(pipefd))
+ ksft_exit_fail_msg("pipe: %s\n", strerror(errno));
+
pid = fork();
if (pid < 0) {
- perror("fork");
close(pipefd[0]);
close(pipefd[1]);
- exit(KSFT_FAIL);
+ ksft_exit_fail_msg("fork: %s\n", strerror(errno));
}
if (pid == 0) {
@@ -134,28 +129,23 @@ retry:
res = read(pipefd[0], &byte, 1);
close(pipefd[0]);
if (res < 0) {
- perror("read");
if (!kill(pid, SIGKILL))
waitpid(pid, NULL, 0);
- exit(KSFT_FAIL);
+ ksft_exit_fail_msg("read: %s\n", strerror(errno));
}
pidfd = syscall(__NR_pidfd_open, pid, 0);
if (pidfd < 0) {
- perror("pidfd_open");
if (!kill(pid, SIGKILL))
waitpid(pid, NULL, 0);
- exit(KSFT_FAIL);
+ ksft_exit_fail_msg("pidfd_open: %s\n", strerror(errno));
}
/* Run negative tests which require a live child */
run_negative_tests(pidfd);
- if (kill(pid, SIGKILL)) {
- res = (errno == ENOSYS ? KSFT_SKIP : KSFT_FAIL);
- perror("kill");
- exit(res);
- }
+ if (kill(pid, SIGKILL))
+ ksft_exit_fail_msg("kill: %s\n", strerror(errno));
success = (syscall(__NR_process_mrelease, pidfd, 0) == 0);
if (!success) {
@@ -169,18 +159,15 @@ retry:
if (errno == ESRCH) {
retry = (size <= MAX_SIZE_MB);
} else {
- res = (errno == ENOSYS ? KSFT_SKIP : KSFT_FAIL);
- perror("process_mrelease");
waitpid(pid, NULL, 0);
- exit(res);
+ ksft_exit_fail_msg("process_mrelease: %s\n", strerror(errno));
}
}
/* Cleanup to prevent zombies */
- if (waitpid(pid, NULL, 0) < 0) {
- perror("waitpid");
- exit(KSFT_FAIL);
- }
+ if (waitpid(pid, NULL, 0) < 0)
+ ksft_exit_fail_msg("waitpid: %s\n", strerror(errno));
+
close(pidfd);
if (!success) {
@@ -188,11 +175,10 @@ retry:
size *= 2;
goto retry;
}
- printf("All process_mrelease attempts failed!\n");
- exit(KSFT_FAIL);
+ ksft_exit_fail_msg("All process_mrelease attempts failed!\n");
}
- printf("Success reaping a child with %zuMB of memory allocations\n",
- size);
- return KSFT_PASS;
+ ksft_test_result_pass("Success reaping a child with %zuMB of memory allocations\n",
+ size);
+ ksft_finished();
}
_
Patches currently in -mm which might be from usama.anjum@xxxxxxxxxxxxx are
selftests-core-include-linux-close_rangeh-for-close_range_-macros.patch
selftests-mm-map_fixed_noreplace-conform-test-to-tap-format-output.patch
selftests-mm-map_hugetlb-conform-test-to-tap-format-output.patch
selftests-mm-map_populate-conform-test-to-tap-format-output.patch
selftests-mm-mlock-random-test-conform-test-to-tap-format-output.patch
selftests-mm-mlock2-tests-conform-test-to-tap-format-output.patch
selftests-mm-mrelease_test-conform-test-to-tap-format-output.patch
selftests-mm-mremap_dontunmap-conform-test-to-tap-format-output.patch
selftests-mm-split_huge_page_test-conform-test-to-tap-format-output.patch
selftests-mm-thp_settings-conform-to-tap-format-output.patch
selftests-mm-thuge-gen-conform-to-tap-format-output.patch
selftests-mm-transhuge-stress-conform-to-tap-format-output.patch
selftests-mm-virtual_address_range-conform-to-tap-format-output.patch
selftests-mm-hugetlb_reparenting_test-do-not-unmount.patch
selftests-mm-run_vmtests-remove-sudo-and-conform-to-tap.patch
selftests-mm-run_vmtests-remove-sudo-and-conform-to-tap-fix.patch
selftests-mm-save-and-restore-nr_hugepages-value.patch
selftests-mm-protection_keys-save-restore-nr_hugepages-settings.patch
selftests-mm-run_vmtestssh-add-missing-tests.patch
selftests-mm-run_vmtestssh-add-missing-tests-fix.patch
selftests-mm-hugepage-shm-conform-test-to-tap-format-output.patch
selftests-mm-hugepage-vmemmap-conform-test-to-tap-format-output.patch
selftests-mm-hugetlb-madvise-conform-test-to-tap-format-output.patch
selftests-mm-khugepaged-conform-test-to-tap-format-output.patch
selftests-mm-hugetlb-read-hwpoison-conform-test-to-tap-format-output.patch
selftests-mm-config-add-missing-configs.patch
