diff options
Diffstat (limited to 'include/linux/bitmap.h')
| -rw-r--r-- | include/linux/bitmap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 3bac44cce142..7ad634501e48 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -146,6 +146,7 @@ extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order); extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits); extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits); +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG)) #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ ((nbits) % BITS_PER_LONG) ? \ |