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authorYury Norov <yury.norov@gmail.com>2023-09-25 04:38:11 +0200
committerYury Norov <yury.norov@gmail.com>2023-10-15 05:25:22 +0200
commit6d5d3a0c33e0b3cab91e2d229f94b51d80d91fe3 (patch)
tree7626b365592be65b06c0522aaaa97aebebbc371a /lib
parentbitmap: align __reg_op() wrappers with modern coding style (diff)
downloadlinux-6d5d3a0c33e0b3cab91e2d229f94b51d80d91fe3.tar.xz
linux-6d5d3a0c33e0b3cab91e2d229f94b51d80d91fe3.zip
bitmap: add test for bitmap_*_region() functions
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>
Diffstat (limited to 'lib')
-rw-r--r--lib/test_bitmap.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index f2ea9f30c7c5..65f22c2578b0 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -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();