lib/test_bitmap.c: add bitmap_fill()/bitmap_set() test cases
Explicitly test bitmap_fill() and bitmap_set() functions.
For bitmap_fill() we expect a consistent behaviour as in bitmap_zero(),
i.e. the trailing bits will be set up to unsigned long boundary.
Link: http://lkml.kernel.org/r/20180109172430.87452-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Yury Norov <ynorov@caviumnetworks.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index 9734af7..6889fcc 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -134,6 +134,35 @@
expect_eq_pbl("", bmap, 1024);
}
+static void __init test_fill_set(void)
+{
+ DECLARE_BITMAP(bmap, 1024);
+
+ /* Known way to clear all bits */
+ memset(bmap, 0x00, 128);
+
+ expect_eq_pbl("", bmap, 23);
+ expect_eq_pbl("", bmap, 1024);
+
+ /* single-word bitmaps */
+ bitmap_set(bmap, 0, 9);
+ expect_eq_pbl("0-8", bmap, 1024);
+
+ bitmap_fill(bmap, 35);
+ expect_eq_pbl("0-63", bmap, 1024);
+
+ /* cross boundaries operations */
+ bitmap_set(bmap, 79, 19);
+ expect_eq_pbl("0-63,79-97", bmap, 1024);
+
+ bitmap_fill(bmap, 115);
+ expect_eq_pbl("0-127", bmap, 1024);
+
+ /* Zeroing entire area */
+ bitmap_fill(bmap, 1024);
+ expect_eq_pbl("0-1023", bmap, 1024);
+}
+
static void __init test_zero_fill_copy(void)
{
DECLARE_BITMAP(bmap1, 1024);
@@ -339,6 +368,7 @@
static int __init test_bitmap_init(void)
{
test_zero_clear();
+ test_fill_set();
test_zero_fill_copy();
test_bitmap_arr32();
test_bitmap_parselist();