diff options
| -rw-r--r-- | include/qemu/bitmap.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/qemu/bitmap.h b/include/qemu/bitmap.h index afdd257d8f..1babd5d812 100644 --- a/include/qemu/bitmap.h +++ b/include/qemu/bitmap.h @@ -220,4 +220,13 @@ unsigned long bitmap_find_next_zero_area(unsigned long *map, unsigned long nr, unsigned long align_mask); +static inline unsigned long *bitmap_zero_extend(unsigned long *old, + long old_nbits, long new_nbits) +{ + long new_len = BITS_TO_LONGS(new_nbits) * sizeof(unsigned long); + unsigned long *new = g_realloc(old, new_len); + bitmap_clear(new, old_nbits, new_nbits - old_nbits); + return new; +} + #endif /* BITMAP_H */ |