123 extern unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags);
124 extern unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags);
129 				 unsigned int nbits, gfp_t flags);
131 				  unsigned int nbits, gfp_t flags);
137 extern int __bitmap_empty(const unsigned long *bitmap, unsigned int nbits);
138 extern int __bitmap_full(const unsigned long *bitmap, unsigned int nbits);
140 			  const unsigned long *bitmap2, unsigned int nbits);
144 				     unsigned int nbits);
146 			unsigned int nbits);
148 				unsigned int shift, unsigned int nbits);
150 				unsigned int shift, unsigned int nbits);
153 		       unsigned int nbits);
155 			const unsigned long *bitmap2, unsigned int nbits);
157 			const unsigned long *bitmap2, unsigned int nbits);
159 			const unsigned long *bitmap2, unsigned int nbits);
161 			const unsigned long *bitmap2, unsigned int nbits);
164 			const unsigned long *mask, unsigned int nbits);
166 			const unsigned long *bitmap2, unsigned int nbits);
168 			const unsigned long *bitmap2, unsigned int nbits);
169 extern int __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
204 			unsigned long *dst, int nbits);
206 			unsigned long *dst, int nbits);
210 			unsigned long *dst, int nbits);
212 		const unsigned long *old, const unsigned long *new, unsigned int nbits);
218 		unsigned int sz, unsigned int nbits);
224 extern void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
228 … unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits);
233 #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))  argument
240 #define small_const_nbits(nbits) \  argument
241 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)
243 static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)  in bitmap_zero()  argument
245 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_zero()
249 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)  in bitmap_fill()  argument
251 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_fill()
256 			unsigned int nbits)  in bitmap_copy()  argument
258 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_copy()
266 		const unsigned long *src, unsigned int nbits)  in bitmap_copy_clear_tail()  argument
268 	bitmap_copy(dst, src, nbits);  in bitmap_copy_clear_tail()
269 	if (nbits % BITS_PER_LONG)  in bitmap_copy_clear_tail()
270 		dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits);  in bitmap_copy_clear_tail()
279 							unsigned int nbits);
281 							unsigned int nbits);
283 #define bitmap_from_arr32(bitmap, buf, nbits)			\  argument
285 			(const unsigned long *) (buf), (nbits))
286 #define bitmap_to_arr32(buf, bitmap, nbits)			\  argument
288 			(const unsigned long *) (bitmap), (nbits))
292 			const unsigned long *src2, unsigned int nbits)  in bitmap_and()  argument
294 	if (small_const_nbits(nbits))  in bitmap_and()
295 		return (*dst = *src1 & *src2 & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_and()
296 	return __bitmap_and(dst, src1, src2, nbits);  in bitmap_and()
300 			const unsigned long *src2, unsigned int nbits)  in bitmap_or()  argument
302 	if (small_const_nbits(nbits))  in bitmap_or()
305 		__bitmap_or(dst, src1, src2, nbits);  in bitmap_or()
309 			const unsigned long *src2, unsigned int nbits)  in bitmap_xor()  argument
311 	if (small_const_nbits(nbits))  in bitmap_xor()
314 		__bitmap_xor(dst, src1, src2, nbits);  in bitmap_xor()
318 			const unsigned long *src2, unsigned int nbits)  in bitmap_andnot()  argument
320 	if (small_const_nbits(nbits))  in bitmap_andnot()
321 		return (*dst = *src1 & ~(*src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_andnot()
322 	return __bitmap_andnot(dst, src1, src2, nbits);  in bitmap_andnot()
326 			unsigned int nbits)  in bitmap_complement()  argument
328 	if (small_const_nbits(nbits))  in bitmap_complement()
331 		__bitmap_complement(dst, src, nbits);  in bitmap_complement()
342 			const unsigned long *src2, unsigned int nbits)  in bitmap_equal()  argument
344 	if (small_const_nbits(nbits))  in bitmap_equal()
345 		return !((*src1 ^ *src2) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_equal()
346 	if (__builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_equal()
347 	    IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_equal()
348 		return !memcmp(src1, src2, nbits / 8);  in bitmap_equal()
349 	return __bitmap_equal(src1, src2, nbits);  in bitmap_equal()
364 				   unsigned int nbits)  in bitmap_or_equal()  argument
366 	if (!small_const_nbits(nbits))  in bitmap_or_equal()
367 		return __bitmap_or_equal(src1, src2, src3, nbits);  in bitmap_or_equal()
369 	return !(((*src1 | *src2) ^ *src3) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_or_equal()
373 			const unsigned long *src2, unsigned int nbits)  in bitmap_intersects()  argument
375 	if (small_const_nbits(nbits))  in bitmap_intersects()
376 		return ((*src1 & *src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_intersects()
378 		return __bitmap_intersects(src1, src2, nbits);  in bitmap_intersects()
382 			const unsigned long *src2, unsigned int nbits)  in bitmap_subset()  argument
384 	if (small_const_nbits(nbits))  in bitmap_subset()
385 		return ! ((*src1 & ~(*src2)) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_subset()
387 		return __bitmap_subset(src1, src2, nbits);  in bitmap_subset()
390 static inline int bitmap_empty(const unsigned long *src, unsigned nbits)  in bitmap_empty()  argument
392 	if (small_const_nbits(nbits))  in bitmap_empty()
393 		return ! (*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_empty()
395 	return find_first_bit(src, nbits) == nbits;  in bitmap_empty()
398 static inline int bitmap_full(const unsigned long *src, unsigned int nbits)  in bitmap_full()  argument
400 	if (small_const_nbits(nbits))  in bitmap_full()
401 		return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_full()
403 	return find_first_zero_bit(src, nbits) == nbits;  in bitmap_full()
406 static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)  in bitmap_weight()  argument
408 	if (small_const_nbits(nbits))  in bitmap_weight()
409 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_weight()
410 	return __bitmap_weight(src, nbits);  in bitmap_weight()
414 		unsigned int nbits)  in bitmap_set()  argument
416 	if (__builtin_constant_p(nbits) && nbits == 1)  in bitmap_set()
420 		 __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_set()
421 		 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_set()
422 		memset((char *)map + start / 8, 0xff, nbits / 8);  in bitmap_set()
424 		__bitmap_set(map, start, nbits);  in bitmap_set()
428 		unsigned int nbits)  in bitmap_clear()  argument
430 	if (__builtin_constant_p(nbits) && nbits == 1)  in bitmap_clear()
434 		 __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_clear()
435 		 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_clear()
436 		memset((char *)map + start / 8, 0, nbits / 8);  in bitmap_clear()
438 		__bitmap_clear(map, start, nbits);  in bitmap_clear()
442 				unsigned int shift, unsigned int nbits)  in bitmap_shift_right()  argument
444 	if (small_const_nbits(nbits))  in bitmap_shift_right()
445 		*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;  in bitmap_shift_right()
447 		__bitmap_shift_right(dst, src, shift, nbits);  in bitmap_shift_right()
451 				unsigned int shift, unsigned int nbits)  in bitmap_shift_left()  argument
453 	if (small_const_nbits(nbits))  in bitmap_shift_left()
454 		*dst = (*src << shift) & BITMAP_LAST_WORD_MASK(nbits);  in bitmap_shift_left()
456 		__bitmap_shift_left(dst, src, shift, nbits);  in bitmap_shift_left()
463 				  unsigned int nbits)  in bitmap_replace()  argument
465 	if (small_const_nbits(nbits))  in bitmap_replace()
468 		__bitmap_replace(dst, old, new, mask, nbits);  in bitmap_replace()