1__BITMAP_SHIFT_RIGHT(9) Basic Kernel Library Functions __BITMAP_SHIFT_RIGHT(9)
2
3
4
6 __bitmap_shift_right - logical right shift of the bits in a bitmap
7
9 void __bitmap_shift_right(unsigned long * dst,
10 const unsigned long * src, int shift,
11 int bits);
12
14 dst
15 destination bitmap
16
17 src
18 source bitmap
19
20 shift
21 shift by this many bits
22
23 bits
24 bitmap size, in bits
25
27 Shifting right (dividing) means moving bits in the MS -> LS bit
28 direction. Zeros are fed into the vacated MS positions and the LS bits
29 shifted off the bottom are lost.
30
32Kernel Hackers Manual 2.6. November 2011 __BITMAP_SHIFT_RIGHT(9)