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Message-Id: <20230815233628.45016-3-yury.norov@gmail.com>
Date: Tue, 15 Aug 2023 16:36:22 -0700
From: Yury Norov <yury.norov@...il.com>
To: linux-kernel@...r.kernel.org,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: Yury Norov <yury.norov@...il.com>
Subject: [PATCH v3 2/8] bitmap: add test for bitmap_*_region() functions
Test basic functionality of bitmap_{allocate,release,find_free}_region()
functions.
Signed-off-by: Yury Norov <yury.norov@...il.com>
---
lib/test_bitmap.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index f2ea9f30c7c5..def7d2f9bd14 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, BIT(order) < 512 ? 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();
--
2.39.2
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