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| BITMAP_ALLOCATE_REGI(9) | Basic Kernel Library Functions | BITMAP_ALLOCATE_REGI(9) |
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).
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.11 |