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From: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Brown <broonie@kernel.org>,
	David Hildenbrand <david@kernel.org>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>, Peter Xu <peterx@redhat.com>,
	"Liam R . Howlett" <Liam.Howlett@oracle.com>,
	Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>,
	linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] tools/testing/selftests: fix gup_longterm for unknown fs
Date: Tue,  6 Jan 2026 15:45:47 +0000	[thread overview]
Message-ID: <20260106154547.214907-1-lorenzo.stoakes@oracle.com> (raw)

Commit 66bce7afbaca ("selftests/mm: fix test result reporting in
gup_longterm") introduced a small bug causing unknown filesystems to always
result in a test failure.

This is because do_test() was updated to use a common reporting path, but
this case appears to have been missed.

This is problematic for e.g. virtme-ng which uses an overlayfs file system,
causing gup_longterm to appear to fail each time due to a test count
mismatch:

	# Planned tests != run tests (50 != 46)
	# Totals: pass:24 fail:0 xfail:0 xpass:0 skip:22 error:0

The fix is to simply change the return into a break.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Fixes: 66bce7afbaca ("selftests/mm: fix test result reporting in gup_longterm")
---
 tools/testing/selftests/mm/gup_longterm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/mm/gup_longterm.c b/tools/testing/selftests/mm/gup_longterm.c
index 6279893a0adc..f61150d28eb2 100644
--- a/tools/testing/selftests/mm/gup_longterm.c
+++ b/tools/testing/selftests/mm/gup_longterm.c
@@ -179,7 +179,7 @@ static void do_test(int fd, size_t size, enum test_type type, bool shared)
 		if (rw && shared && fs_is_unknown(fs_type)) {
 			ksft_print_msg("Unknown filesystem\n");
 			result = KSFT_SKIP;
-			return;
+			break;
 		}
 		/*
 		 * R/O pinning or pinning in a private mapping is always
--
2.52.0


             reply	other threads:[~2026-01-06 15:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-06 15:45 Lorenzo Stoakes [this message]
2026-01-06 17:28 ` Andrew Morton
2026-01-06 17:29   ` Mark Brown
2026-01-06 18:37     ` Lorenzo Stoakes
2026-01-06 18:40 ` David Hildenbrand (Red Hat)

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