github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 01:55:51 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests/mm: hugetlb-vmemmap: use kselftest framework

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

Link: https://lore.kernel.org/20260511162840.375890-10-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>
This commit is contained in:
Mike Rapoport (Microsoft) 2026-05-11 19:27:53 +03:00 committed by Andrew Morton
parent f62c93fa8b
commit 40e9e3d760
1 changed files with 18 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
tools/testing/selftests/mm/hugetlb-vmemmap.c
View File

@ -63,7 +63,7 @@ static int check_page_flags(unsigned long pfn)
read(fd, &pageflags, sizeof(pageflags));
if ((pageflags & HEAD_PAGE_FLAGS) != HEAD_PAGE_FLAGS) {
close(fd);
printf("Head page flags (%lx) is invalid\n", pageflags);
ksft_print_msg("Head page flags (%lx) is invalid\n", pageflags);
return -1;
}
@ -77,7 +77,7 @@ static int check_page_flags(unsigned long pfn)
if ((pageflags & TAIL_PAGE_FLAGS) != TAIL_PAGE_FLAGS ||
(pageflags & HEAD_PAGE_FLAGS) == HEAD_PAGE_FLAGS) {
close(fd);
printf("Tail page flags (%lx) is invalid\n", pageflags);
ksft_print_msg("Tail page flags (%lx) is invalid\n", pageflags);
return -1;
}
}
@ -91,44 +91,38 @@ int main(int argc, char **argv)
{
void *addr;
unsigned long pfn;
int ret;
ksft_print_header();
ksft_set_plan(1);
pagesize = psize();
maplength = default_huge_page_size();
if (!maplength) {
printf("Unable to determine huge page size\n");
exit(1);
}
if (!maplength)
ksft_exit_skip("Unable to determine huge page size\n");
addr = mmap(NULL, maplength, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
if (addr == MAP_FAILED) {
perror("mmap");
exit(1);
}
if (addr == MAP_FAILED)
ksft_exit_fail_perror("mmap");
/* Trigger allocation of HugeTLB page. */
write_bytes(addr, maplength);
pfn = virt_to_pfn(addr);
if (pfn == -1UL) {
ksft_perror("virt_to_pfn");
munmap(addr, maplength);
perror("virt_to_pfn");
exit(1);
ksft_exit_fail();
}
printf("Returned address is %p whose pfn is %lx\n", addr, pfn);
ksft_print_msg("Returned address is %p whose pfn is %lx\n", addr, pfn);
if (check_page_flags(pfn) < 0) {
munmap(addr, maplength);
perror("check_page_flags");
exit(1);
}
ret = check_page_flags(pfn);
/* munmap() length of MAP_HUGETLB memory must be hugepage aligned */
if (munmap(addr, maplength)) {
perror("munmap");
exit(1);
}
if (munmap(addr, maplength))
ksft_exit_fail_perror("munmap");
return 0;
ksft_test_result(!ret, "HugeTLB vmemmap page flags\n");
ksft_finished();
}