linux-kernel - [PATCH 1/3] userfaultfd/selftests: Always dump something in modes

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Message-Id: <20201208024709.7701-2-peterx@redhat.com>
Date:   Mon,  7 Dec 2020 21:47:07 -0500
From:   Peter Xu <peterx@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     Andrea Arcangeli <aarcange@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>, peterx@...hat.com,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>
Subject: [PATCH 1/3] userfaultfd/selftests: Always dump something in modes

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

Signed-off-by: Peter Xu <peterx@...hat.com>
---
 tools/testing/selftests/vm/userfaultfd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 61e5cfeb1350..31f470d12d0b 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -1230,6 +1230,8 @@ static int userfaultfd_stress(void)
 			printf(" ver");
 		if (bounces & BOUNCE_POLL)
 			printf(" poll");
+		else
+			printf(" read");
 		printf(", ");
 		fflush(stdout);
 
-- 
2.26.2