Name
bitmap_from_u32array —
copy the contents of a u32 array of bits to bitmap
Synopsis
unsigned int bitmap_from_u32array ( | unsigned long * bitmap, |
| | unsigned int nbits, |
| | const u32 * buf, |
| | unsigned int nwords); |
Arguments
unsigned long * bitmap
array of unsigned longs, the destination bitmap, non NULL
unsigned int nbits
number of bits in bitmap
const u32 * buf
array of u32 (in host byte order), the source bitmap, non NULL
unsigned int nwords
number of u32 words in buf
Description
copy min(nbits, 32*nwords) bits from buf to bitmap, remaining
bits between nword and nbits in bitmap (if any) are cleared. In
last word of bitmap, the bits beyond nbits (if any) are kept
unchanged.
Return the number of bits effectively copied.