Commit 5dd01be1 authored Sep 22, 2015 by Andrea Arcangeli Committed by Linus Torvalds Sep 22, 2015

userfaultfd: selftest: don't error out if pthread_mutex_t isn't identical

On ppc big endian this check fails, the mutex doesn't necessarily need
to be identical for all pages after pthread_mutex_lock/unlock cycles.
The count verification (outside of the pthread_mutex_t structure)
suffices and that is retained.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent a5932bf5

tools/testing/selftests/vm/userfaultfd.c

+0 −9

Original line number	Diff line number	Diff line
		@@ -580,15 +580,6 @@ static int userfaultfd_stress(void)
		/* verification */
		if (bounces & BOUNCE_VERIFY) {
		for (nr = 0; nr < nr_pages; nr++) {
		if (my_bcmp(area_dst,
		area_dst + nr * page_size,
		sizeof(pthread_mutex_t))) {
		fprintf(stderr,
		"error mutex %lu\n",
		nr);
		err = 1;
		bounces = 0;
		}
		if (*area_count(area_dst, nr) != count_verify[nr]) {
		fprintf(stderr,
		"error area_count %Lu %Lu %lu\n",