selftests/mm: hugetlb-shm: use kselftest framework

Convert hugetlb-shm test to use kselftest framework for reporting and
tracking successful and failing runs.

Link: https://lore.kernel.org/20260511162840.375890-9-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Donet Tom <donettom@linux.ibm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Tested-by: Sarthak Sharma <sarthak.sharma@arm.com>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Li Wang <li.wang@linux.dev>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/mm/hugetlb-shm.c b/tools/testing/selftests/mm/hugetlb-shm.c
index de8f5d523084a2b6e5fdf297004e998da12facb6..c2c7aee85b964a57af7430d685dae854600dd578 100644 (file)
--- a/tools/testing/selftests/mm/hugetlb-shm.c
+++ b/tools/testing/selftests/mm/hugetlb-shm.c
@@ -28,9 +28,9 @@
 #include <sys/shm.h>
 #include <sys/mman.h>
 
-#define LENGTH (256UL*1024*1024)
+#include "vm_util.h"
 
-#define dprintf(x)  printf(x)
+#define LENGTH (256UL*1024*1024)
 
 int main(void)
 {
@@ -38,44 +38,41 @@ int main(void)
        unsigned long i;
        char *shmaddr;
 
+       ksft_print_header();
+       ksft_set_plan(1);
+
        shmid = shmget(2, LENGTH, SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
-       if (shmid < 0) {
-               perror("shmget");
-               exit(1);
-       }
-       printf("shmid: 0x%x\n", shmid);
+       if (shmid < 0)
+               ksft_exit_fail_perror("shmget");
+
+       ksft_print_msg("shmid: 0x%x\n", shmid);
 
        shmaddr = shmat(shmid, NULL, 0);
        if (shmaddr == (char *)-1) {
-               perror("Shared memory attach failure");
+               ksft_perror("Shared memory attach failure");
                shmctl(shmid, IPC_RMID, NULL);
-               exit(2);
+               ksft_exit_fail();
        }
-       printf("shmaddr: %p\n", shmaddr);
+       ksft_print_msg("shmaddr: %p\n", shmaddr);
 
-       dprintf("Starting the writes:\n");
-       for (i = 0; i < LENGTH; i++) {
+       ksft_print_msg("Starting the writes:\n");
+       for (i = 0; i < LENGTH; i++)
                shmaddr[i] = (char)(i);
-               if (!(i % (1024 * 1024)))
-                       dprintf(".");
-       }
-       dprintf("\n");
 
-       dprintf("Starting the Check...");
+       ksft_print_msg("Starting the Check...");
        for (i = 0; i < LENGTH; i++)
-               if (shmaddr[i] != (char)i) {
-                       printf("\nIndex %lu mismatched\n", i);
-                       exit(3);
-               }
-       dprintf("Done.\n");
+               if (shmaddr[i] != (char)i)
+                       ksft_exit_fail_msg("Data mismatch at index %lu\n", i);
+       ksft_print_msg("Done.\n");
 
        if (shmdt((const void *)shmaddr) != 0) {
-               perror("Detach failure");
+               ksft_perror("Detach failure");
                shmctl(shmid, IPC_RMID, NULL);
-               exit(4);
+               ksft_exit_fail();
        }
 
        shmctl(shmid, IPC_RMID, NULL);
 
-       return 0;
+       ksft_test_result_pass("hugepage using SysV shmget/shmat\n");
+       ksft_finished();
 }