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BITMAP_FOLD(9) | Basic Kernel Library Functions | BITMAP_FOLD(9) |
NAME¶
bitmap_fold - fold larger bitmap into smaller, modulo specified sizeSYNOPSIS¶
void bitmap_fold(unsigned long * dst, const unsigned long * orig, unsigned int sz, unsigned int nbits);
ARGUMENTS¶
dstresulting smaller bitmap
orig
original larger bitmap
sz
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.COPYRIGHT¶
April 2019 | Kernel Hackers Manual 4.9. |