userfaultfd/selftests: fix typo in comment

Delete the redundant word 'in'.

Link: https://lkml.kernel.org/r/20220610071244.59679-1-wangxiang@cdjrlc.com
Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index 0bdfc19..4bc2458 100644 (file)
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -860,7 +860,7 @@ static int stress(struct uffd_stats *uffd_stats)
        /*
         * Be strict and immediately zap area_src, the whole area has
         * been transferred already by the background treads. The
-        * area_src could then be faulted in in a racy way by still
+        * area_src could then be faulted in a racy way by still
         * running uffdio_threads reading zeropages after we zapped
         * area_src (but they're guaranteed to get -EEXIST from
         * UFFDIO_COPY without writing zero pages into area_dst