184 void __bitmap_set(unsigned long *map, unsigned int start, int len);
185 void __bitmap_clear(unsigned long *map, unsigned int start, int len);
189 					     unsigned long start,
209 					 unsigned long start,  in bitmap_find_next_zero_area()  argument
213 	return bitmap_find_next_zero_area_off(map, size, start, nr,  in bitmap_find_next_zero_area()
226 #define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1)))  argument
468 void bitmap_set(unsigned long *map, unsigned int start, unsigned int nbits)  in bitmap_set()  argument
471 		__set_bit(start, map);  in bitmap_set()
472 	else if (small_const_nbits(start + nbits))  in bitmap_set()
473 		*map |= GENMASK(start + nbits - 1, start);  in bitmap_set()
474 	else if (__builtin_constant_p(start & BITMAP_MEM_MASK) &&  in bitmap_set()
475 		 IS_ALIGNED(start, BITMAP_MEM_ALIGNMENT) &&  in bitmap_set()
478 		memset((char *)map + start / 8, 0xff, nbits / 8);  in bitmap_set()
480 		__bitmap_set(map, start, nbits);  in bitmap_set()
484 void bitmap_clear(unsigned long *map, unsigned int start, unsigned int nbits)  in bitmap_clear()  argument
487 		__clear_bit(start, map);  in bitmap_clear()
488 	else if (small_const_nbits(start + nbits))  in bitmap_clear()
489 		*map &= ~GENMASK(start + nbits - 1, start);  in bitmap_clear()
490 	else if (__builtin_constant_p(start & BITMAP_MEM_MASK) &&  in bitmap_clear()
491 		 IS_ALIGNED(start, BITMAP_MEM_ALIGNMENT) &&  in bitmap_clear()
494 		memset((char *)map + start / 8, 0, nbits / 8);  in bitmap_clear()
496 		__bitmap_clear(map, start, nbits);  in bitmap_clear()
765 unsigned long bitmap_read(const unsigned long *map, unsigned long start, unsigned long nbits)  in bitmap_read()  argument
767 	size_t index = BIT_WORD(start);  in bitmap_read()
768 	unsigned long offset = start % BITS_PER_LONG;  in bitmap_read()
778 	value_low = map[index] & BITMAP_FIRST_WORD_MASK(start);  in bitmap_read()
779 	value_high = map[index + 1] & BITMAP_LAST_WORD_MASK(start + nbits);  in bitmap_read()
800 		  unsigned long start, unsigned long nbits)  in bitmap_write()  argument
813 	offset = start % BITS_PER_LONG;  in bitmap_write()
816 	index = BIT_WORD(start);  in bitmap_write()
818 	map[index] &= (fit ? (~(mask << offset)) : ~BITMAP_FIRST_WORD_MASK(start));  in bitmap_write()
823 	map[index + 1] &= BITMAP_FIRST_WORD_MASK(start + nbits);  in bitmap_write()
827 #define bitmap_get_value8(map, start)			\  argument
828 	bitmap_read(map, start, BITS_PER_BYTE)
829 #define bitmap_set_value8(map, value, start)		\  argument
830 	bitmap_write(map, value, start, BITS_PER_BYTE)