diff options
| author | Greg Kroah-Hartman | 2019-04-21 23:18:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-04-21 23:18:44 +0200 |
| commit | 817de6b85914a3dda72b971c074d4d342965fba0 (patch) | |
| tree | df0a4563a04aadb8f8595f72392d66d65797c455 /tools/testing/selftests/proc/proc-self-map-files-002.c | |
| parent | staging: kpc2000: add initial set of Daktronics drivers (diff) | |
| parent | Linux 5.1-rc6 (diff) | |
| download | kernel-qcow2-linux-817de6b85914a3dda72b971c074d4d342965fba0.tar.gz kernel-qcow2-linux-817de6b85914a3dda72b971c074d4d342965fba0.tar.xz kernel-qcow2-linux-817de6b85914a3dda72b971c074d4d342965fba0.zip | |
Merge 5.1-rc6 into staging-next
We want the fixes in here as well as this resolves an iio driver merge
issue.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/proc/proc-self-map-files-002.c')
| -rw-r--r-- | tools/testing/selftests/proc/proc-self-map-files-002.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/tools/testing/selftests/proc/proc-self-map-files-002.c b/tools/testing/selftests/proc/proc-self-map-files-002.c index 762cb01f2ca7..47b7473dedef 100644 --- a/tools/testing/selftests/proc/proc-self-map-files-002.c +++ b/tools/testing/selftests/proc/proc-self-map-files-002.c @@ -46,12 +46,9 @@ static void fail(const char *fmt, unsigned long a, unsigned long b) int main(void) { - const unsigned int PAGE_SIZE = sysconf(_SC_PAGESIZE); -#ifdef __arm__ - unsigned long va = 2 * PAGE_SIZE; -#else - unsigned long va = 0; -#endif + const int PAGE_SIZE = sysconf(_SC_PAGESIZE); + const unsigned long va_max = 1UL << 32; + unsigned long va; void *p; int fd; unsigned long a, b; @@ -60,10 +57,13 @@ int main(void) if (fd == -1) return 1; - p = mmap((void *)va, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE|MAP_FIXED, fd, 0); - if (p == MAP_FAILED) { - if (errno == EPERM) - return 4; + for (va = 0; va < va_max; va += PAGE_SIZE) { + p = mmap((void *)va, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE|MAP_FIXED, fd, 0); + if (p == (void *)va) + break; + } + if (va == va_max) { + fprintf(stderr, "error: mmap doesn't like you\n"); return 1; } |