From 4f06d6302da682157890f72c0573e12a73536814 Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Sun, 9 Sep 2018 01:52:17 -0400 Subject: xarray: Move multiorder_check to in-kernel tests 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 --- lib/test_xarray.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'lib/test_xarray.c') diff --git a/lib/test_xarray.c b/lib/test_xarray.c index ff94b54a926da..0f06a93b4d0e8 100644 --- a/lib/test_xarray.c +++ b/lib/test_xarray.c @@ -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 } -- cgit v1.2.3