The patch titled
Subject: selftests/mm: transhuge-stress: conform to TAP format output
has been added to the -mm mm-unstable branch. Its filename is
selftests-mm-transhuge-stress-conform-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-transhuge-stress-conform-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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------------------------------------------------------
From: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
Subject: selftests/mm: transhuge-stress: conform to TAP format output
Date: Fri, 2 Feb 2024 16:31:18 +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/20240202113119.2047740-12-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/transhuge-stress.c | 38 +++++++++-------
tools/testing/selftests/mm/vm_util.c | 6 +-
2 files changed, 26 insertions(+), 18 deletions(-)
--- a/tools/testing/selftests/mm/transhuge-stress.c~selftests-mm-transhuge-stress-conform-to-tap-format-output
+++ a/tools/testing/selftests/mm/transhuge-stress.c
@@ -16,6 +16,7 @@
#include <string.h>
#include <sys/mman.h>
#include "vm_util.h"
+#include "../kselftest.h"
int backing_fd = -1;
int mmap_flags = MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE;
@@ -34,6 +35,8 @@ int main(int argc, char **argv)
int pagemap_fd;
int duration = 0;
+ ksft_print_header();
+
ram = sysconf(_SC_PHYS_PAGES);
if (ram > SIZE_MAX / psize() / 4)
ram = SIZE_MAX / 4;
@@ -43,7 +46,8 @@ int main(int argc, char **argv)
while (++i < argc) {
if (!strcmp(argv[i], "-h"))
- errx(1, "usage: %s [-f <filename>] [-d <duration>] [size in MiB]", argv[0]);
+ ksft_exit_fail_msg("usage: %s [-f <filename>] [-d <duration>] [size in MiB]\n",
+ argv[0]);
else if (!strcmp(argv[i], "-f"))
name = argv[++i];
else if (!strcmp(argv[i], "-d"))
@@ -52,10 +56,12 @@ int main(int argc, char **argv)
len = atoll(argv[i]) << 20;
}
+ ksft_set_plan(1);
+
if (name) {
backing_fd = open(name, O_RDWR);
if (backing_fd == -1)
- errx(2, "open %s", name);
+ ksft_exit_fail_msg("open %s\n", name);
mmap_flags = MAP_SHARED;
}
@@ -65,21 +71,21 @@ int main(int argc, char **argv)
pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
if (pagemap_fd < 0)
- err(2, "open pagemap");
+ ksft_exit_fail_msg("open pagemap\n");
len -= len % HPAGE_SIZE;
ptr = mmap(NULL, len + HPAGE_SIZE, PROT_RW, mmap_flags, backing_fd, 0);
if (ptr == MAP_FAILED)
- err(2, "initial mmap");
+ ksft_exit_fail_msg("initial mmap");
ptr += HPAGE_SIZE - (uintptr_t)ptr % HPAGE_SIZE;
if (madvise(ptr, len, MADV_HUGEPAGE))
- err(2, "MADV_HUGEPAGE");
+ ksft_exit_fail_msg("MADV_HUGEPAGE");
map_len = ram >> (HPAGE_SHIFT - 1);
map = malloc(map_len);
if (!map)
- errx(2, "map malloc");
+ ksft_exit_fail_msg("map malloc\n");
clock_gettime(CLOCK_MONOTONIC, &start);
@@ -103,7 +109,7 @@ int main(int argc, char **argv)
if (idx >= map_len) {
map = realloc(map, idx + 1);
if (!map)
- errx(2, "map realloc");
+ ksft_exit_fail_msg("map realloc\n");
memset(map + map_len, 0, idx + 1 - map_len);
map_len = idx + 1;
}
@@ -114,17 +120,19 @@ int main(int argc, char **argv)
/* split transhuge page, keep last page */
if (madvise(p, HPAGE_SIZE - psize(), MADV_DONTNEED))
- err(2, "MADV_DONTNEED");
+ ksft_exit_fail_msg("MADV_DONTNEED");
}
clock_gettime(CLOCK_MONOTONIC, &b);
s = b.tv_sec - a.tv_sec + (b.tv_nsec - a.tv_nsec) / 1000000000.;
- warnx("%.3f s/loop, %.3f ms/page, %10.3f MiB/s\t"
- "%4d succeed, %4d failed, %4d different pages",
- s, s * 1000 / (len >> HPAGE_SHIFT), len / s / (1 << 20),
- nr_succeed, nr_failed, nr_pages);
-
- if (duration > 0 && b.tv_sec - start.tv_sec >= duration)
- return 0;
+ ksft_print_msg("%.3f s/loop, %.3f ms/page, %10.3f MiB/s\t"
+ "%4d succeed, %4d failed, %4d different pages\n",
+ s, s * 1000 / (len >> HPAGE_SHIFT), len / s / (1 << 20),
+ nr_succeed, nr_failed, nr_pages);
+
+ if (duration > 0 && b.tv_sec - start.tv_sec >= duration) {
+ ksft_test_result_pass("Completed\n");
+ ksft_finished();
+ }
}
}
--- a/tools/testing/selftests/mm/vm_util.c~selftests-mm-transhuge-stress-conform-to-tap-format-output
+++ a/tools/testing/selftests/mm/vm_util.c
@@ -232,17 +232,17 @@ int64_t allocate_transhuge(void *ptr, in
if (mmap(ptr, HPAGE_SIZE, PROT_READ | PROT_WRITE,
MAP_FIXED | MAP_ANONYMOUS |
MAP_NORESERVE | MAP_PRIVATE, -1, 0) != ptr)
- errx(2, "mmap transhuge");
+ ksft_exit_fail_msg("mmap transhuge\n");
if (madvise(ptr, HPAGE_SIZE, MADV_HUGEPAGE))
- err(2, "MADV_HUGEPAGE");
+ ksft_exit_fail_msg("MADV_HUGEPAGE\n");
/* allocate transparent huge page */
*(volatile void **)ptr = ptr;
if (pread(pagemap_fd, ent, sizeof(ent),
(uintptr_t)ptr >> (pshift() - 3)) != sizeof(ent))
- err(2, "read pagemap");
+ ksft_exit_fail_msg("read pagemap\n");
if (PAGEMAP_PRESENT(ent[0]) && PAGEMAP_PRESENT(ent[1]) &&
PAGEMAP_PFN(ent[0]) + 1 == PAGEMAP_PFN(ent[1]) &&
_
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
