90 extern int __bitmap_empty(const unsigned long *bitmap, unsigned int nbits);
91 extern int __bitmap_full(const unsigned long *bitmap, unsigned int nbits);
93 			  const unsigned long *bitmap2, unsigned int nbits);
95 			unsigned int nbits);
97 				unsigned int shift, unsigned int nbits);
99 				unsigned int shift, unsigned int nbits);
101 			const unsigned long *bitmap2, unsigned int nbits);
103 			const unsigned long *bitmap2, unsigned int nbits);
105 			const unsigned long *bitmap2, unsigned int nbits);
107 			const unsigned long *bitmap2, unsigned int nbits);
109 			const unsigned long *bitmap2, unsigned int nbits);
111 			const unsigned long *bitmap2, unsigned int nbits);
112 extern int __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
148 			unsigned long *dst, int nbits);
150 			unsigned long *dst, int nbits);
154 			unsigned long *dst, int nbits);
156 		const unsigned long *old, const unsigned long *new, unsigned int nbits);
162 		unsigned int sz, unsigned int nbits);
167 extern void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
171 … unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits);
176 #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))  argument
178 #define small_const_nbits(nbits) \  argument
179 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
181 static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)  in bitmap_zero()  argument
183 	if (small_const_nbits(nbits))  in bitmap_zero()
186 		unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_zero()
191 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)  in bitmap_fill()  argument
193 	unsigned int nlongs = BITS_TO_LONGS(nbits);  in bitmap_fill()
194 	if (!small_const_nbits(nbits)) {  in bitmap_fill()
198 	dst[nlongs - 1] = BITMAP_LAST_WORD_MASK(nbits);  in bitmap_fill()
202 			unsigned int nbits)  in bitmap_copy()  argument
204 	if (small_const_nbits(nbits))  in bitmap_copy()
207 		unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_copy()
213 			const unsigned long *src2, unsigned int nbits)  in bitmap_and()  argument
215 	if (small_const_nbits(nbits))  in bitmap_and()
216 		return (*dst = *src1 & *src2 & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_and()
217 	return __bitmap_and(dst, src1, src2, nbits);  in bitmap_and()
221 			const unsigned long *src2, unsigned int nbits)  in bitmap_or()  argument
223 	if (small_const_nbits(nbits))  in bitmap_or()
226 		__bitmap_or(dst, src1, src2, nbits);  in bitmap_or()
230 			const unsigned long *src2, unsigned int nbits)  in bitmap_xor()  argument
232 	if (small_const_nbits(nbits))  in bitmap_xor()
235 		__bitmap_xor(dst, src1, src2, nbits);  in bitmap_xor()
239 			const unsigned long *src2, unsigned int nbits)  in bitmap_andnot()  argument
241 	if (small_const_nbits(nbits))  in bitmap_andnot()
242 		return (*dst = *src1 & ~(*src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_andnot()
243 	return __bitmap_andnot(dst, src1, src2, nbits);  in bitmap_andnot()
247 			unsigned int nbits)  in bitmap_complement()  argument
249 	if (small_const_nbits(nbits))  in bitmap_complement()
252 		__bitmap_complement(dst, src, nbits);  in bitmap_complement()
256 			const unsigned long *src2, unsigned int nbits)  in bitmap_equal()  argument
258 	if (small_const_nbits(nbits))  in bitmap_equal()
259 		return ! ((*src1 ^ *src2) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_equal()
261 		return __bitmap_equal(src1, src2, nbits);  in bitmap_equal()
265 			const unsigned long *src2, unsigned int nbits)  in bitmap_intersects()  argument
267 	if (small_const_nbits(nbits))  in bitmap_intersects()
268 		return ((*src1 & *src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_intersects()
270 		return __bitmap_intersects(src1, src2, nbits);  in bitmap_intersects()
274 			const unsigned long *src2, unsigned int nbits)  in bitmap_subset()  argument
276 	if (small_const_nbits(nbits))  in bitmap_subset()
277 		return ! ((*src1 & ~(*src2)) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_subset()
279 		return __bitmap_subset(src1, src2, nbits);  in bitmap_subset()
282 static inline int bitmap_empty(const unsigned long *src, unsigned nbits)  in bitmap_empty()  argument
284 	if (small_const_nbits(nbits))  in bitmap_empty()
285 		return ! (*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_empty()
287 	return find_first_bit(src, nbits) == nbits;  in bitmap_empty()
290 static inline int bitmap_full(const unsigned long *src, unsigned int nbits)  in bitmap_full()  argument
292 	if (small_const_nbits(nbits))  in bitmap_full()
293 		return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_full()
295 	return find_first_zero_bit(src, nbits) == nbits;  in bitmap_full()
298 static inline int bitmap_weight(const unsigned long *src, unsigned int nbits)  in bitmap_weight()  argument
300 	if (small_const_nbits(nbits))  in bitmap_weight()
301 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_weight()
302 	return __bitmap_weight(src, nbits);  in bitmap_weight()
306 				unsigned int shift, int nbits)  in bitmap_shift_right()  argument
308 	if (small_const_nbits(nbits))  in bitmap_shift_right()
309 		*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;  in bitmap_shift_right()
311 		__bitmap_shift_right(dst, src, shift, nbits);  in bitmap_shift_right()
315 				unsigned int shift, unsigned int nbits)  in bitmap_shift_left()  argument
317 	if (small_const_nbits(nbits))  in bitmap_shift_left()
318 		*dst = (*src << shift) & BITMAP_LAST_WORD_MASK(nbits);  in bitmap_shift_left()
320 		__bitmap_shift_left(dst, src, shift, nbits);  in bitmap_shift_left()