selftests/mm: add -a to run_vmtests.sh

Allows to specify optional tests in run_vmtests.sh, where we can run time
consuming test matrix only when user specified "-a".

Link: https://lkml.kernel.org/r/20230628215310.73782-8-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: James Houghton <jthoughton@google.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Kirill A . Shutemov <kirill@shutemov.name>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

tools/testing/selftests/mm/run_vmtests.sh

@@ -12,11 +12,14 @@ exitcode=0
 
 usage() {
 	cat <<EOF
-usage: ${BASH_SOURCE[0]:-$0} [ -h | -t "<categories>"]
+usage: ${BASH_SOURCE[0]:-$0} [ options ]
+
+  -a: run all tests, including extra ones
   -t: specify specific categories to tests to run
   -h: display this message
 
-The default behavior is to run all tests.
+The default behavior is to run required tests only.  If -a is specified,
+will run all tests.
 
 Alternatively, specific groups tests can be run by passing a string
 to the -t argument containing one or more of the following categories
@@ -60,9 +63,11 @@ EOF
 	exit 0
 }
 
+RUN_ALL=false
 
-while getopts "ht:" OPT; do
+while getopts "aht:" OPT; do
 	case ${OPT} in
+		"a") RUN_ALL=true ;;
 		"h") usage ;;
 		"t") VM_SELFTEST_ITEMS=${OPTARG} ;;
 	esac