table of contents
| 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 area
SYNOPSIS¶
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¶
map
The address to base the search on
size
The bitmap size in bits
start
The bitnumber to start searching at
nr
The number of zeroed bits we're looking for
align_mask
Alignment mask for zero area
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¶
| June 2024 | Kernel Hackers Manual 3.10 |