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selftests/mm: convert some cow error reports to ksft_perror()

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This prints the errno and a string decode of it.

Link: https://lkml.kernel.org/r/20250610-selftest-mm-cow-tweaks-v1-2-43cd7457500f@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Mark Brown 2025-06-10 15:13:55 +01:00 committed by Andrew Morton
parent be3d3343d4
commit 5fbfb1f39d
1 changed files with 3 additions and 3 deletions
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6
tools/testing/selftests/mm/cow.c
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@ -332,7 +332,7 @@ static void do_test_vmsplice_in_parent(char *mem, size_t size,
if (before_fork) {
transferred = vmsplice(fds[1], &iov, 1, 0);
if (transferred <= 0) {
ksft_print_msg("vmsplice() failed\n");
ksft_perror("vmsplice() failed\n");
log_test_result(KSFT_FAIL);
goto close_pipe;
}
@ -562,7 +562,7 @@ static void do_test_iouring(char *mem, size_t size, bool use_fork)
while (total < size) {
cur = pread(fd, tmp + total, size - total, total);
if (cur < 0) {
ksft_print_msg("pread() failed\n");
ksft_perror("pread() failed\n");
log_test_result(KSFT_FAIL);
goto quit_child;
}
@ -628,7 +628,7 @@ static void do_test_ro_pin(char *mem, size_t size, enum ro_pin_test test,
tmp = malloc(size);
if (!tmp) {
ksft_print_msg("malloc() failed\n");
ksft_perror("malloc() failed\n");
log_test_result(KSFT_FAIL);
return;
}