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lib/bitmap: add test for bitmap_{from,to}_arr64 

Test newly added bitmap_{from,to}_arr64() functions similarly to
already existing bitmap_{from,to}_arr32() tests.

CC: Alexander Gordeev <agordeev@linux.ibm.com>
CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CC: Christian Borntraeger <borntraeger@linux.ibm.com>
CC: Claudio Imbrenda <imbrenda@linux.ibm.com>
CC: David Hildenbrand <david@redhat.com>
CC: Heiko Carstens <hca@linux.ibm.com>
CC: Janosch Frank <frankja@linux.ibm.com>
CC: Rasmus Villemoes <linux@rasmusvillemoes.dk>
CC: Sven Schnelle <svens@linux.ibm.com>
CC: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Yury Norov <yury.norov@gmail.com>
This commit is contained in:
Yury Norov 2022-04-28 13:51:14 -07:00
parent 0a97953fd2
commit 2c523550b9
1 changed files with 25 additions and 0 deletions
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25
lib/test_bitmap.c
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@ -585,6 +585,30 @@ static void __init test_bitmap_arr32(void)
}
}
static void __init test_bitmap_arr64(void)
{
unsigned int nbits, next_bit;
u64 arr[EXP1_IN_BITS / 64];
DECLARE_BITMAP(bmap2, EXP1_IN_BITS);
memset(arr, 0xa5, sizeof(arr));
for (nbits = 0; nbits < EXP1_IN_BITS; ++nbits) {
memset(bmap2, 0xff, sizeof(arr));
bitmap_to_arr64(arr, exp1, nbits);
bitmap_from_arr64(bmap2, arr, nbits);
expect_eq_bitmap(bmap2, exp1, nbits);
next_bit = find_next_bit(bmap2, round_up(nbits, BITS_PER_LONG), nbits);
if (next_bit < round_up(nbits, BITS_PER_LONG))
pr_err("bitmap_copy_arr64(nbits == %d:"
" tail is not safely cleared: %d\n", nbits, next_bit);
if (nbits < EXP1_IN_BITS - 64)
expect_eq_uint(arr[DIV_ROUND_UP(nbits, 64)], 0xa5a5a5a5);
}
}
static void noinline __init test_mem_optimisations(void)
{
DECLARE_BITMAP(bmap1, 1024);
@ -852,6 +876,7 @@ static void __init selftest(void)
test_copy();
test_replace();
test_bitmap_arr32();
test_bitmap_arr64();
test_bitmap_parse();
test_bitmap_parselist();
test_bitmap_printlist();