diff options
| author | Mike Rapoport (Microsoft) <rppt@kernel.org> | 2026-05-11 19:28:25 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-05-28 21:31:51 -0700 |
| commit | 3821eb8a30a31b5a988f45a68caa17b791726963 (patch) | |
| tree | d43c75edeb744ce6d18943ac2d5a821799a21e94 /tools | |
| parent | de987bdbd5451a2f581f7d21b09f5814353a0095 (diff) | |
| download | linux-next-history-3821eb8a30a31b5a988f45a68caa17b791726963.tar.gz | |
selftests/mm: hugetlb-mremap: add setup of HugeTLB pages
hugetlb-mremap test fails if there are no free huge pages prepared by a
wrapper script.
Add setup of HugeTLB pages to the test and make sure that the original
settings are restored on the test exit.
Link: https://lore.kernel.org/20260511162840.375890-42-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Tested-by: Sarthak Sharma <sarthak.sharma@arm.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: Donet Tom <donettom@linux.ibm.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: Mark Brown <broonie@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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/mm/hugetlb-mremap.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/testing/selftests/mm/hugetlb-mremap.c b/tools/testing/selftests/mm/hugetlb-mremap.c index 1c87c39780c52..d239905790dd8 100644 --- a/tools/testing/selftests/mm/hugetlb-mremap.c +++ b/tools/testing/selftests/mm/hugetlb-mremap.c @@ -26,6 +26,7 @@ #include <stdbool.h> #include "kselftest.h" #include "vm_util.h" +#include "hugepage_settings.h" #define DEFAULT_LENGTH_MB 10UL #define MB_TO_BYTES(x) (x * 1024 * 1024) @@ -108,8 +109,9 @@ static void register_region_with_uffd(char *addr, size_t len) int main(int argc, char *argv[]) { + unsigned long hugepage_size; + int ret = 0, fd, nr; size_t length = 0; - int ret = 0, fd; ksft_print_header(); ksft_set_plan(1); @@ -125,7 +127,16 @@ int main(int argc, char *argv[]) else length = DEFAULT_LENGTH_MB; + hugepage_size = default_huge_page_size(); + if (!hugepage_size) + ksft_exit_skip("Could not detect default hugetlb page size\n"); length = MB_TO_BYTES(length); + length = (length + hugepage_size - 1) & ~(hugepage_size - 1); + nr = length / hugepage_size; + + if (!hugetlb_setup_default(nr)) + ksft_exit_skip("Not enough huge pages\n"); + fd = memfd_create(argv[0], MFD_HUGETLB); if (fd < 0) ksft_exit_fail_msg("Open failed: %s\n", strerror(errno)); |