diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/bitmap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/util/bitmap.c b/util/bitmap.c index c1a84ca..efced9a 100644 --- a/util/bitmap.c +++ b/util/bitmap.c @@ -287,6 +287,17 @@ bool bitmap_test_and_clear_atomic(unsigned long *map, long start, long nr) return dirty != 0; } +void bitmap_copy_and_clear_atomic(unsigned long *dst, unsigned long *src, + long nr) +{ + while (nr > 0) { + *dst = atomic_xchg(src, 0); + dst++; + src++; + nr -= BITS_PER_LONG; + } +} + #define ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) /** |