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xarray: Move multiorder_check to in-kernel tests

Browse source 
This version is a little less thorough in order to be a little quicker,
but tests the important edge cases.  Also test adding a multiorder entry
at a non-canonical index, and erasing it.

Signed-off-by: Matthew Wilcox <[email protected]>
This commit is contained in:
Matthew Wilcox 2018-09-09 01:52:17 -04:00
commit 4f06d6302d
2 changed files with 44 additions and 48 deletions
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44
lib/test_xarray.c
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@ -422,6 +422,43 @@ static noinline void check_xas_erase(struct xarray *xa)
}
}
#ifdef CONFIG_XARRAY_MULTI
static noinline void check_multi_store_1(struct xarray *xa, unsigned long index,
unsigned int order)
{
XA_STATE(xas, xa, index);
unsigned long min = index & ~((1UL << order) - 1);
unsigned long max = min + (1UL << order);
xa_store_order(xa, index, order, xa_mk_value(index), GFP_KERNEL);
XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_value(index));
XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_value(index));
XA_BUG_ON(xa, xa_load(xa, max) != NULL);
XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL);
XA_BUG_ON(xa, xas_store(&xas, xa_mk_value(min)) != xa_mk_value(index));
XA_BUG_ON(xa, xa_load(xa, min) != xa_mk_value(min));
XA_BUG_ON(xa, xa_load(xa, max - 1) != xa_mk_value(min));
XA_BUG_ON(xa, xa_load(xa, max) != NULL);
XA_BUG_ON(xa, xa_load(xa, min - 1) != NULL);
xa_erase_index(xa, min);
XA_BUG_ON(xa, !xa_empty(xa));
}
static noinline void check_multi_store_2(struct xarray *xa, unsigned long index,
unsigned int order)
{
XA_STATE(xas, xa, index);
xa_store_order(xa, index, order, xa_mk_value(0), GFP_KERNEL);
XA_BUG_ON(xa, xas_store(&xas, xa_mk_value(1)) != xa_mk_value(0));
XA_BUG_ON(xa, xas.xa_index != index);
XA_BUG_ON(xa, xas_store(&xas, NULL) != xa_mk_value(1));
XA_BUG_ON(xa, !xa_empty(xa));
}
#endif
static noinline void check_multi_store(struct xarray *xa)
{
#ifdef CONFIG_XARRAY_MULTI
@ -487,6 +524,13 @@ static noinline void check_multi_store(struct xarray *xa)
XA_BUG_ON(xa, !xa_empty(xa));
}
}
for (i = 0; i < 20; i++) {
check_multi_store_1(xa, 200, i);
check_multi_store_1(xa, 0, i);
check_multi_store_1(xa, (1UL << i) + 1, i);
}
check_multi_store_2(xa, 4095, 9);
#endif
}