Name
__bitmap_shift_left —
logical left shift of the bits in a bitmap
Synopsis
void __bitmap_shift_left ( | unsigned long * dst, |
| | const unsigned long * src, |
| | unsigned int shift, |
| | unsigned int nbits); |
Arguments
unsigned long * dst
destination bitmap
const unsigned long * src
source bitmap
unsigned int shift
shift by this many bits
unsigned int nbits
bitmap size, in bits
Description
Shifting left (multiplying) means moving bits in the LS -> MS
direction. Zeros are fed into the vacated LS bit positions
and those MS bits shifted off the top are lost.