The patch titled
Subject: proc: fixup map_files test on arm
has been added to the -mm tree. Its filename is
proc-fixup-map_files-test-on-arm.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-fixup-map_files-test-on-arm.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-fixup-map_files-test-on-arm.patch
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------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: proc: fixup map_files test on arm
https://bugs.linaro.org/show_bug.cgi?id=3782
Turns out arm doesn't allow to map address 0, so try minimum virtual
address instead.
Link: http://lkml.kernel.org/r/20181113165446.GA28157@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Reported-by: Rafael David Tinoco <rafael.tinoco@xxxxxxxxxx>
Tested-by: Rafael David Tinoco <rafael.tinoco@xxxxxxxxxx>
Acked-by: Cyrill Gorcunov <gorcunov@xxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/tools/testing/selftests/proc/proc-self-map-files-002.c~proc-fixup-map_files-test-on-arm
+++ a/tools/testing/selftests/proc/proc-self-map-files-002.c
@@ -13,7 +13,7 @@
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-/* Test readlink /proc/self/map_files/... with address 0. */
+/* Test readlink /proc/self/map_files/... with minimum address. */
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
@@ -47,6 +47,11 @@ static void fail(const char *fmt, unsign
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
void *p;
int fd;
unsigned long a, b;
@@ -55,7 +60,7 @@ int main(void)
if (fd == -1)
return 1;
- p = mmap(NULL, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE|MAP_FIXED, fd, 0);
+ p = mmap((void *)va, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE|MAP_FIXED, fd, 0);
if (p == MAP_FAILED) {
if (errno == EPERM)
return 2;
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
proc-update-maintainers-with-proctxt.patch
proc-fixup-map_files-test-on-arm.patch
mm-make-migratetype_names-const-char.patch
mm-make-migrate_reason_names-const-char.patch
mm-make-free_reserved_area-return-const-char.patch
coding-style-dont-use-extern-with-function-prototypes.patch
drop-silly-static-inline-asmlinkage-from-dump_stack.patch
make-initcall_level_names-const-char.patch
