Name
bitmap_allocate_region —
allocate bitmap region
Synopsis
int bitmap_allocate_region ( | unsigned long * bitmap, |
| | unsigned int pos, |
| | int order); |
Arguments
unsigned long * bitmap
array of unsigned longs corresponding to the bitmap
unsigned int pos
beginning of bit region to allocate
int order
region size (log base 2 of number of bits) to allocate
Description
Allocate (set bits in) a specified region of a bitmap.
Return 0 on success, or -EBUSY if specified region wasn't
free (not all bits were zero).