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bitmap: add test for bitmap_*_region() functions

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Test basic functionality of bitmap_{allocate,release,find_free}_region()
functions.

CC: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
This commit is contained in:
Yury Norov 2023-09-24 19:38:11 -07:00
parent 82bf9bdfbc
commit 6d5d3a0c33
1 changed files with 24 additions and 0 deletions
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24
lib/test_bitmap.c
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@ -330,6 +330,29 @@ static void __init test_copy(void)
expect_eq_pbl("0-108,128-1023", bmap2, 1024);
}
static void __init test_bitmap_region(void)
{
int pos, order;
DECLARE_BITMAP(bmap, 1000);
bitmap_zero(bmap, 1000);
for (order = 0; order < 10; order++) {
pos = bitmap_find_free_region(bmap, 1000, order);
if (order == 0)
expect_eq_uint(pos, 0);
else
expect_eq_uint(pos, order < 9 ? BIT(order) : -ENOMEM);
}
bitmap_release_region(bmap, 0, 0);
for (order = 1; order < 9; order++)
bitmap_release_region(bmap, BIT(order), order);
expect_eq_uint(bitmap_weight(bmap, 1000), 0);
}
#define EXP2_IN_BITS (sizeof(exp2) * 8)
static void __init test_replace(void)
@ -1227,6 +1250,7 @@ static void __init selftest(void)
test_zero_clear();
test_fill_set();
test_copy();
test_bitmap_region();
test_replace();
test_bitmap_arr32();
test_bitmap_arr64();