diff options
Diffstat (limited to 'tools/testing/selftests/mm/uffd-stress.c')
| -rw-r--r-- | tools/testing/selftests/mm/uffd-stress.c | 83 |
1 files changed, 19 insertions, 64 deletions
diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index c68a9aeefc41..e6d39a755082 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -463,28 +463,19 @@ static int uffdio_zeropage(int ufd, unsigned long offset) /* exercise UFFDIO_ZEROPAGE */ static int userfaultfd_zeropage_test(void) { - struct uffdio_register uffdio_register; - printf("testing UFFDIO_ZEROPAGE: "); fflush(stdout); uffd_test_ctx_init(0); - uffdio_register.range.start = (unsigned long) area_dst; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) - uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst, nr_pages * page_size, + true, test_uffdio_wp, false)) err("register failure"); - assert_expected_ioctls_present( - uffdio_register.mode, uffdio_register.ioctls); - if (area_dst_alias) { /* Needed this to test zeropage-retry on shared memory */ - uffdio_register.range.start = (unsigned long) area_dst_alias; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst_alias, nr_pages * page_size, + true, test_uffdio_wp, false)) err("register failure"); } @@ -498,7 +489,6 @@ static int userfaultfd_zeropage_test(void) static int userfaultfd_events_test(void) { - struct uffdio_register uffdio_register; pthread_t uffd_mon; int err, features; pid_t pid; @@ -514,17 +504,10 @@ static int userfaultfd_events_test(void) fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); - uffdio_register.range.start = (unsigned long) area_dst; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) - uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst, nr_pages * page_size, + true, test_uffdio_wp, false)) err("register failure"); - assert_expected_ioctls_present( - uffdio_register.mode, uffdio_register.ioctls); - if (pthread_create(&uffd_mon, &attr, uffd_poll_thread, &stats)) err("uffd_poll_thread create"); @@ -550,7 +533,6 @@ static int userfaultfd_events_test(void) static int userfaultfd_sig_test(void) { - struct uffdio_register uffdio_register; unsigned long userfaults; pthread_t uffd_mon; int err, features; @@ -566,17 +548,10 @@ static int userfaultfd_sig_test(void) fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); - uffdio_register.range.start = (unsigned long) area_dst; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) - uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst, nr_pages * page_size, + true, test_uffdio_wp, false)) err("register failure"); - assert_expected_ioctls_present( - uffdio_register.mode, uffdio_register.ioctls); - if (faulting_process(1)) err("faulting process failed"); @@ -629,7 +604,6 @@ void check_memory_contents(char *p) static int userfaultfd_minor_test(void) { unsigned long p; - struct uffdio_register uffdio_register; pthread_t uffd_mon; char c; struct uffd_stats stats = { 0 }; @@ -642,17 +616,10 @@ static int userfaultfd_minor_test(void) uffd_test_ctx_init(uffd_minor_feature()); - uffdio_register.range.start = (unsigned long)area_dst_alias; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_MINOR; - if (test_uffdio_wp) - uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst_alias, nr_pages * page_size, + false, test_uffdio_wp, true)) err("register failure"); - assert_expected_ioctls_present( - uffdio_register.mode, uffdio_register.ioctls); - /* * After registering with UFFD, populate the non-UFFD-registered side of * the shared mapping. This should *not* trigger any UFFD minor faults. @@ -777,7 +744,6 @@ static void userfaultfd_wp_unpopulated_test(int pagemap_fd) static void userfaultfd_pagemap_test(unsigned int test_pgsize) { - struct uffdio_register uffdio_register; int pagemap_fd; uint64_t value; @@ -805,10 +771,8 @@ static void userfaultfd_pagemap_test(unsigned int test_pgsize) err("madvise(MADV_NOHUGEPAGE) failed"); } - uffdio_register.range.start = (unsigned long) area_dst; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst, nr_pages * page_size, + false, true, false)) err("register failed"); pagemap_fd = pagemap_open(); @@ -858,8 +822,8 @@ static int userfaultfd_stress(void) { void *area; unsigned long nr; - struct uffdio_register uffdio_register; struct uffd_stats uffd_stats[nr_cpus]; + uint64_t mem_size = nr_pages * page_size; uffd_test_ctx_init(UFFD_FEATURE_WP_UNPOPULATED); @@ -894,20 +858,13 @@ static int userfaultfd_stress(void) fcntl(uffd, F_SETFL, uffd_flags & ~O_NONBLOCK); /* register */ - uffdio_register.range.start = (unsigned long) area_dst; - uffdio_register.range.len = nr_pages * page_size; - uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) - uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst, mem_size, + true, test_uffdio_wp, false)) err("register failure"); - assert_expected_ioctls_present( - uffdio_register.mode, uffdio_register.ioctls); if (area_dst_alias) { - uffdio_register.range.start = (unsigned long) - area_dst_alias; - if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) + if (uffd_register(uffd, area_dst_alias, mem_size, + true, test_uffdio_wp, false)) err("register failure alias"); } @@ -949,12 +906,10 @@ static int userfaultfd_stress(void) nr_pages * page_size, false); /* unregister */ - if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range)) + if (uffd_unregister(uffd, area_dst, mem_size)) err("unregister failure"); if (area_dst_alias) { - uffdio_register.range.start = (unsigned long) area_dst; - if (ioctl(uffd, UFFDIO_UNREGISTER, - &uffdio_register.range)) + if (uffd_unregister(uffd, area_dst_alias, mem_size)) err("unregister failure alias"); } |