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selftests: mm: hugepage-mmap: conform to TAP format output

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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/20240102053223.2099572-1-usama.anjum@collabora.com
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Muhammad Usama Anjum 2024-01-02 10:32:22 +05:00 committed by Andrew Morton
parent cb6e7cae18
commit 84ba3f226c
1 changed files with 13 additions and 10 deletions
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23
tools/testing/selftests/mm/hugepage-mmap.c
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@ -22,6 +22,7 @@
#include <unistd.h>
#include <sys/mman.h>
#include <fcntl.h>
#include "../kselftest.h"
#define LENGTH (256UL*1024*1024)
#define PROTECTION (PROT_READ | PROT_WRITE)
@ -37,7 +38,7 @@
static void check_bytes(char *addr)
{
printf("First hex is %x\n", *((unsigned int *)addr));
ksft_print_msg("First hex is %x\n", *((unsigned int *)addr));
}
static void write_bytes(char *addr)
@ -55,7 +56,7 @@ static int read_bytes(char *addr)
check_bytes(addr);
for (i = 0; i < LENGTH; i++)
if (*(addr + i) != (char)i) {
printf("Mismatch at %lu\n", i);
ksft_print_msg("Error: Mismatch at %lu\n", i);
return 1;
}
return 0;
@ -66,20 +67,20 @@ int main(void)
void *addr;
int fd, ret;
ksft_print_header();
ksft_set_plan(1);
fd = memfd_create("hugepage-mmap", MFD_HUGETLB);
if (fd < 0) {
perror("memfd_create() failed");
exit(1);
}
if (fd < 0)
ksft_exit_fail_msg("memfd_create() failed: %s\n", strerror(errno));
addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, fd, 0);
if (addr == MAP_FAILED) {
perror("mmap");
close(fd);
exit(1);
ksft_exit_fail_msg("mmap(): %s\n", strerror(errno));
}
printf("Returned address is %p\n", addr);
ksft_print_msg("Returned address is %p\n", addr);
check_bytes(addr);
write_bytes(addr);
ret = read_bytes(addr);
@ -87,5 +88,7 @@ int main(void)
munmap(addr, LENGTH);
close(fd);
return ret;
ksft_test_result(!ret, "Read same data\n");
ksft_exit(!ret);
}