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xarray: Move multiorder account test in-kernel
Move this test to the in-kernel test suite, and enhance it to test several different orders. Signed-off-by: Matthew Wilcox <willy@infradead.org>
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@@ -1019,6 +1019,37 @@ static noinline void check_workingset(struct xarray *xa, unsigned long index)
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XA_BUG_ON(xa, !xa_empty(xa));
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}
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/*
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* Check that the pointer / value / sibling entries are accounted the
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* way we expect them to be.
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*/
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static noinline void check_account(struct xarray *xa)
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{
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#ifdef CONFIG_XARRAY_MULTI
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unsigned int order;
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for (order = 1; order < 12; order++) {
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XA_STATE(xas, xa, 1 << order);
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xa_store_order(xa, 0, order, xa, GFP_KERNEL);
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xas_load(&xas);
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XA_BUG_ON(xa, xas.xa_node->count == 0);
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XA_BUG_ON(xa, xas.xa_node->count > (1 << order));
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XA_BUG_ON(xa, xas.xa_node->nr_values != 0);
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xa_store_order(xa, 1 << order, order, xa_mk_value(1 << order),
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GFP_KERNEL);
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XA_BUG_ON(xa, xas.xa_node->count != xas.xa_node->nr_values * 2);
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xa_erase(xa, 1 << order);
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XA_BUG_ON(xa, xas.xa_node->nr_values != 0);
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xa_erase(xa, 0);
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XA_BUG_ON(xa, !xa_empty(xa));
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}
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#endif
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}
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static noinline void check_destroy(struct xarray *xa)
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{
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unsigned long index;
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@@ -1068,6 +1099,7 @@ static int xarray_checks(void)
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check_xa_alloc();
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check_find(&array);
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check_find_entry(&array);
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check_account(&array);
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check_destroy(&array);
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check_move(&array);
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check_create_range(&array);
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