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Diffstat (limited to 'lib/test_xarray.c')
-rw-r--r--lib/test_xarray.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/test_xarray.c b/lib/test_xarray.c
index 9d631a7b6a70..7df4f7f395bf 100644
--- a/lib/test_xarray.c
+++ b/lib/test_xarray.c
@@ -1110,6 +1110,28 @@ static noinline void check_find_entry(struct xarray *xa)
XA_BUG_ON(xa, !xa_empty(xa));
}
+static noinline void check_move_tiny(struct xarray *xa)
+{
+ XA_STATE(xas, xa, 0);
+
+ XA_BUG_ON(xa, !xa_empty(xa));
+ rcu_read_lock();
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ rcu_read_unlock();
+ xa_store_index(xa, 0, GFP_KERNEL);
+ rcu_read_lock();
+ xas_set(&xas, 0);
+ XA_BUG_ON(xa, xas_next(&xas) != xa_mk_index(0));
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ xas_set(&xas, 0);
+ XA_BUG_ON(xa, xas_prev(&xas) != xa_mk_index(0));
+ XA_BUG_ON(xa, xas_prev(&xas) != NULL);
+ rcu_read_unlock();
+ xa_erase_index(xa, 0);
+ XA_BUG_ON(xa, !xa_empty(xa));
+}
+
static noinline void check_move_small(struct xarray *xa, unsigned long idx)
{
XA_STATE(xas, xa, 0);
@@ -1217,6 +1239,8 @@ static noinline void check_move(struct xarray *xa)
xa_destroy(xa);
+ check_move_tiny(xa);
+
for (i = 0; i < 16; i++)
check_move_small(xa, 1UL << i);