diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/vm/userfaultfd.c | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index a5e5808c86cd..75540e770b82 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -81,7 +81,7 @@ static int huge_fd; static char *huge_fd_off0; #endif static unsigned long long *count_verify; -static int uffd, finished, *pipefd; +static int uffd, uffd_flags, finished, *pipefd; static char *area_src, *area_dst; static char *zeropage; pthread_attr_t attr; @@ -512,23 +512,9 @@ static int stress(unsigned long *userfaults) return 0; } -static int userfaultfd_stress(void) +static int userfaultfd_open(void) { - void *area; - char *tmp_area; - unsigned long nr; - struct uffdio_register uffdio_register; struct uffdio_api uffdio_api; - unsigned long cpu; - int uffd_flags, err; - unsigned long userfaults[nr_cpus]; - - allocate_area((void **)&area_src); - if (!area_src) - return 1; - allocate_area((void **)&area_dst); - if (!area_dst) - return 1; uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK); if (uffd < 0) { @@ -549,6 +535,29 @@ static int userfaultfd_stress(void) return 1; } + return 0; +} + +static int userfaultfd_stress(void) +{ + void *area; + char *tmp_area; + unsigned long nr; + struct uffdio_register uffdio_register; + unsigned long cpu; + int err; + unsigned long userfaults[nr_cpus]; + + allocate_area((void **)&area_src); + if (!area_src) + return 1; + allocate_area((void **)&area_dst); + if (!area_dst) + return 1; + + if (userfaultfd_open() < 0) + return 1; + count_verify = malloc(nr_pages * sizeof(unsigned long long)); if (!count_verify) { perror("count_verify"); |