Scroll to navigation

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

June 2017 Kernel Hackers Manual 4.11