diff options
Diffstat (limited to 'lib/test_xarray.c')
| -rw-r--r-- | lib/test_xarray.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/lib/test_xarray.c b/lib/test_xarray.c index d5c5cbba33ed..0e865bab4a10 100644 --- a/lib/test_xarray.c +++ b/lib/test_xarray.c @@ -1418,7 +1418,7 @@ static noinline void check_pause(struct xarray *xa) { XA_STATE(xas, xa, 0); void *entry; - unsigned int order; + int order; unsigned long index = 1; unsigned int count = 0; @@ -1448,6 +1448,42 @@ static noinline void check_pause(struct xarray *xa) XA_BUG_ON(xa, count != order_limit); xa_destroy(xa); + + index = 0; + for (order = order_limit - 1; order >= 0; order--) { + XA_BUG_ON(xa, xa_store_order(xa, index, order, + xa_mk_index(index), GFP_KERNEL)); + index += 1UL << order; + } + + index = 0; + count = 0; + xas_set(&xas, 0); + rcu_read_lock(); + xas_for_each(&xas, entry, ULONG_MAX) { + XA_BUG_ON(xa, entry != xa_mk_index(index)); + index += 1UL << (order_limit - count - 1); + count++; + } + rcu_read_unlock(); + XA_BUG_ON(xa, count != order_limit); + + index = 0; + count = 0; + /* test unaligned index */ + xas_set(&xas, 1 % (1UL << (order_limit - 1))); + rcu_read_lock(); + xas_for_each(&xas, entry, ULONG_MAX) { + XA_BUG_ON(xa, entry != xa_mk_index(index)); + index += 1UL << (order_limit - count - 1); + count++; + xas_pause(&xas); + } + rcu_read_unlock(); + XA_BUG_ON(xa, count != order_limit); + + xa_destroy(xa); + } static noinline void check_move_tiny(struct xarray *xa) |