bitmap_fold (9) - Linux Manuals

bitmap_fold: fold larger bitmap into smaller, modulo specified size

Command to display bitmap_fold manual in Linux: $ man 9 bitmap_fold

NAME

bitmap_fold - fold larger bitmap into smaller, modulo specified size

SYNOPSIS

void bitmap_fold(unsigned long * dst, const unsigned long * orig, unsigned int sz, unsigned int nbits);

ARGUMENTS

dst

: resulting smaller bitmap

orig

: original larger bitmap

: specified size

nbits

: number of bits in each of these bitmaps

DESCRIPTION

For each bit oldbit in orig, set bit oldbit mod sz in dst. Clear all other bits in dst. See further the comment and Example [2] for bitmap_onto for why and how to use this.