diff options
Diffstat (limited to 'tools/testing/selftests/mm/vm_util.c')
| -rw-r--r-- | tools/testing/selftests/mm/vm_util.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/tools/testing/selftests/mm/vm_util.c b/tools/testing/selftests/mm/vm_util.c index 1bc0ceb01adb..9b06a5034808 100644 --- a/tools/testing/selftests/mm/vm_util.c +++ b/tools/testing/selftests/mm/vm_util.c @@ -198,8 +198,9 @@ unsigned long default_huge_page_size(void) return hps; } -int uffd_register(int uffd, void *addr, uint64_t len, - bool miss, bool wp, bool minor) +/* If `ioctls' non-NULL, the allowed ioctls will be returned into the var */ +int uffd_register_with_ioctls(int uffd, void *addr, uint64_t len, + bool miss, bool wp, bool minor, uint64_t *ioctls) { struct uffdio_register uffdio_register = { 0 }; uint64_t mode = 0; @@ -218,10 +219,19 @@ int uffd_register(int uffd, void *addr, uint64_t len, if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) == -1) ret = -errno; + else if (ioctls) + *ioctls = uffdio_register.ioctls; return ret; } +int uffd_register(int uffd, void *addr, uint64_t len, + bool miss, bool wp, bool minor) +{ + return uffd_register_with_ioctls(uffd, addr, len, + miss, wp, minor, NULL); +} + int uffd_unregister(int uffd, void *addr, uint64_t len) { struct uffdio_range range = { .start = (uintptr_t)addr, .len = len }; |