The patch titled
Subject: lib/test_bitmap.c: add bitmap_zero()/bitmap_clear() test cases
has been added to the -mm tree. Its filename is
bitmap-add-bitmap_zero-bitmap_clear-test-cases.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/bitmap-add-bitmap_zero-bitmap_clear-test-cases.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/bitmap-add-bitmap_zero-bitmap_clear-test-cases.patch
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------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: lib/test_bitmap.c: add bitmap_zero()/bitmap_clear() test cases
Explicitly test bitmap_zero() and bitmap_clear() functions.
Link: http://lkml.kernel.org/r/20180109172430.87452-1-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Yury Norov <ynorov@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/test_bitmap.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff -puN lib/test_bitmap.c~bitmap-add-bitmap_zero-bitmap_clear-test-cases lib/test_bitmap.c
--- a/lib/test_bitmap.c~bitmap-add-bitmap_zero-bitmap_clear-test-cases
+++ a/lib/test_bitmap.c
@@ -105,6 +105,35 @@ __check_eq_u32_array(const char *srcfile
#define expect_eq_pbl(...) __expect_eq(pbl, ##__VA_ARGS__)
#define expect_eq_u32_array(...) __expect_eq(u32_array, ##__VA_ARGS__)
+static void __init test_zero_clear(void)
+{
+ DECLARE_BITMAP(bmap, 1024);
+
+ /* Known way to set all bits */
+ memset(bmap, 0xff, 128);
+
+ expect_eq_pbl("0-22", bmap, 23);
+ expect_eq_pbl("0-1023", bmap, 1024);
+
+ /* single-word bitmaps */
+ bitmap_clear(bmap, 0, 9);
+ expect_eq_pbl("9-1023", bmap, 1024);
+
+ bitmap_zero(bmap, 35);
+ expect_eq_pbl("64-1023", bmap, 1024);
+
+ /* cross boundaries operations */
+ bitmap_clear(bmap, 79, 19);
+ expect_eq_pbl("64-78,98-1023", bmap, 1024);
+
+ bitmap_zero(bmap, 115);
+ expect_eq_pbl("128-1023", bmap, 1024);
+
+ /* Zeroing entire area */
+ bitmap_zero(bmap, 1024);
+ expect_eq_pbl("", bmap, 1024);
+}
+
static void __init test_zero_fill_copy(void)
{
DECLARE_BITMAP(bmap1, 1024);
@@ -309,6 +338,7 @@ static void noinline __init test_mem_opt
static int __init test_bitmap_init(void)
{
+ test_zero_clear();
test_zero_fill_copy();
test_bitmap_arr32();
test_bitmap_parselist();
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
scripts-decodecode-make-it-take-multiline-code-line.patch
bitmap-add-bitmap_zero-bitmap_clear-test-cases.patch
bitmap-add-bitmap_fill-bitmap_set-test-cases.patch
bitmap-clean-up-test_zero_fill_copy-test-case-and-rename.patch
bitmap-make-bitmap_fill-and-bitmap_zero-consistent.patch
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