mm/selftests: fix pagemap_ioctl memory map test

__FILE__ is not guaranteed to exist in current dir.  Replace that with
argv[0] for memory map test.

Link: https://lkml.kernel.org/r/20231116201547.536857-4-peterx@redhat.com
Fixes: 46fd75d4a3c9 ("selftests: mm: add pagemap ioctl tests")
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
index befab43719badff842fd771eb52f54fbc98b510c..d59517ed3d48bdb25c94cecbae991fea1acb5108 100644 (file)
--- a/tools/testing/selftests/mm/pagemap_ioctl.c
+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
@@ -36,6 +36,7 @@ int pagemap_fd;
 int uffd;
 int page_size;
 int hpage_size;
+const char *progname;
 
 #define LEN(region)    ((region.end - region.start)/page_size)
 
@@ -1149,11 +1150,11 @@ int sanity_tests(void)
        munmap(mem, mem_size);
 
        /* 9. Memory mapped file */
-       fd = open(__FILE__, O_RDONLY);
+       fd = open(progname, O_RDONLY);
        if (fd < 0)
                ksft_exit_fail_msg("%s Memory mapped file\n", __func__);
 
-       ret = stat(__FILE__, &sbuf);
+       ret = stat(progname, &sbuf);
        if (ret < 0)
                ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
 
@@ -1472,12 +1473,14 @@ static void transact_test(int page_size)
                              extra_thread_faults);
 }
 
-int main(void)
+int main(int argc, char *argv[])
 {
        int mem_size, shmid, buf_size, fd, i, ret;
        char *mem, *map, *fmem;
        struct stat sbuf;
 
+       progname = argv[0];
+
        ksft_print_header();
 
        if (init_uffd())