[PATCH 0/3] userfaultfd: selftests: cleanups and trivial fixes

Recently I wrote some uffd write-protection test for the not-yet-published uffd-wp tree, and I picked these common patches out first for the selftest which even suite for master.

Any feedback is welcomed. Please have a look, thanks.

Peter Xu (3): userfaultfd: selftest: cleanup help messages userfaultfd: selftest: generalize read and poll userfaultfd: selftest: recycle lock threads first

tools/testing/selftests/vm/userfaultfd.c | 131 +++++++++++++---------- 1 file changed, 74 insertions(+), 57 deletions(-)