bitmap_allocate_region (9) Linux Manual Page
bitmap_allocate_region – allocate bitmap region
Synopsis
int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order);Arguments
bitmap
-
- array of unsigned longs corresponding to the bitmap
pos
- beginning of bit region to allocate
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).