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| BITMAP_FIND_NEXT_ZER(9) | Basic Kernel Library Functions | BITMAP_FIND_NEXT_ZER(9) |
NAME¶
bitmap_find_next_zero_area_off - find a contiguous aligned zero areaSYNOPSIS¶
unsigned long bitmap_find_next_zero_area_off(unsigned long * map, unsigned long size, unsigned long start, unsigned int nr, unsigned long align_mask, unsigned long align_offset);
ARGUMENTS¶
unsigned long * mapThe address to base the search on
unsigned long size
The bitmap size in bits
unsigned long start
The bitnumber to start searching at
unsigned int nr
The number of zeroed bits we're looking for
unsigned long align_mask
Alignment mask for zero area
unsigned long align_offset
Alignment offset for zero area.
DESCRIPTION¶
The align_mask should be one less than a power of 2; the effect is that the bit offset of all zero areas this function finds plus align_offset is multiple of that power of 2.COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.11 |