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userfaultfd/selftests: always dump something in modes

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Patch series "userfaultfd: selftests: Small fixes".

Some very trivial fixes that I kept locally to userfaultfd selftest
program.

This patch (of 3):

BOUNCE_POLL is a special bit that if cleared it means "READ" instead.
Dump that too otherwise we'll see tests with empty modes.

Link: https://lkml.kernel.org/r/20201208024709.7701-1-peterx@redhat.com
Link: https://lkml.kernel.org/r/20201208024709.7701-2-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Xu 2020-12-14 19:14:02 -08:00 committed by Linus Torvalds
parent 77f962e7ae
commit 164c50be28
1 changed files with 2 additions and 0 deletions
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2
tools/testing/selftests/vm/userfaultfd.c
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@ -1291,6 +1291,8 @@ static int userfaultfd_stress(void)
printf(" ver");
if (bounces & BOUNCE_POLL)
printf(" poll");
else
printf(" read");
printf(", ");
fflush(stdout);