111 extern unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags);
112 extern unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags);
119 extern int __bitmap_empty(const unsigned long *bitmap, unsigned int nbits);
120 extern int __bitmap_full(const unsigned long *bitmap, unsigned int nbits);
122 			  const unsigned long *bitmap2, unsigned int nbits);
126 				     unsigned int nbits);
128 			unsigned int nbits);
130 				unsigned int shift, unsigned int nbits);
132 				unsigned int shift, unsigned int nbits);
134 			const unsigned long *bitmap2, unsigned int nbits);
136 			const unsigned long *bitmap2, unsigned int nbits);
138 			const unsigned long *bitmap2, unsigned int nbits);
140 			const unsigned long *bitmap2, unsigned int nbits);
142 			const unsigned long *bitmap2, unsigned int nbits);
144 			const unsigned long *bitmap2, unsigned int nbits);
145 extern int __bitmap_weight(const unsigned long *bitmap, unsigned int nbits);
180 			unsigned long *dst, int nbits);
182 			unsigned long *dst, int nbits);
186 			unsigned long *dst, int nbits);
188 		const unsigned long *old, const unsigned long *new, unsigned int nbits);
194 		unsigned int sz, unsigned int nbits);
200 extern void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int nbits);
204 … unsigned int bitmap_ord_to_pos(const unsigned long *bitmap, unsigned int ord, unsigned int nbits);
209 #define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1)))  argument
216 #define small_const_nbits(nbits) \  argument
217 	(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)
219 static inline void bitmap_zero(unsigned long *dst, unsigned int nbits)  in bitmap_zero()  argument
221 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_zero()
225 static inline void bitmap_fill(unsigned long *dst, unsigned int nbits)  in bitmap_fill()  argument
227 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_fill()
232 			unsigned int nbits)  in bitmap_copy()  argument
234 	unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);  in bitmap_copy()
242 		const unsigned long *src, unsigned int nbits)  in bitmap_copy_clear_tail()  argument
244 	bitmap_copy(dst, src, nbits);  in bitmap_copy_clear_tail()
245 	if (nbits % BITS_PER_LONG)  in bitmap_copy_clear_tail()
246 		dst[nbits / BITS_PER_LONG] &= BITMAP_LAST_WORD_MASK(nbits);  in bitmap_copy_clear_tail()
255 							unsigned int nbits);
257 							unsigned int nbits);
259 #define bitmap_from_arr32(bitmap, buf, nbits)			\  argument
261 			(const unsigned long *) (buf), (nbits))
262 #define bitmap_to_arr32(buf, bitmap, nbits)			\  argument
264 			(const unsigned long *) (bitmap), (nbits))
268 			const unsigned long *src2, unsigned int nbits)  in bitmap_and()  argument
270 	if (small_const_nbits(nbits))  in bitmap_and()
271 		return (*dst = *src1 & *src2 & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_and()
272 	return __bitmap_and(dst, src1, src2, nbits);  in bitmap_and()
276 			const unsigned long *src2, unsigned int nbits)  in bitmap_or()  argument
278 	if (small_const_nbits(nbits))  in bitmap_or()
281 		__bitmap_or(dst, src1, src2, nbits);  in bitmap_or()
285 			const unsigned long *src2, unsigned int nbits)  in bitmap_xor()  argument
287 	if (small_const_nbits(nbits))  in bitmap_xor()
290 		__bitmap_xor(dst, src1, src2, nbits);  in bitmap_xor()
294 			const unsigned long *src2, unsigned int nbits)  in bitmap_andnot()  argument
296 	if (small_const_nbits(nbits))  in bitmap_andnot()
297 		return (*dst = *src1 & ~(*src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_andnot()
298 	return __bitmap_andnot(dst, src1, src2, nbits);  in bitmap_andnot()
302 			unsigned int nbits)  in bitmap_complement()  argument
304 	if (small_const_nbits(nbits))  in bitmap_complement()
307 		__bitmap_complement(dst, src, nbits);  in bitmap_complement()
318 			const unsigned long *src2, unsigned int nbits)  in bitmap_equal()  argument
320 	if (small_const_nbits(nbits))  in bitmap_equal()
321 		return !((*src1 ^ *src2) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_equal()
322 	if (__builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_equal()
323 	    IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_equal()
324 		return !memcmp(src1, src2, nbits / 8);  in bitmap_equal()
325 	return __bitmap_equal(src1, src2, nbits);  in bitmap_equal()
340 				   unsigned int nbits)  in bitmap_or_equal()  argument
342 	if (!small_const_nbits(nbits))  in bitmap_or_equal()
343 		return __bitmap_or_equal(src1, src2, src3, nbits);  in bitmap_or_equal()
345 	return !(((*src1 | *src2) ^ *src3) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_or_equal()
349 			const unsigned long *src2, unsigned int nbits)  in bitmap_intersects()  argument
351 	if (small_const_nbits(nbits))  in bitmap_intersects()
352 		return ((*src1 & *src2) & BITMAP_LAST_WORD_MASK(nbits)) != 0;  in bitmap_intersects()
354 		return __bitmap_intersects(src1, src2, nbits);  in bitmap_intersects()
358 			const unsigned long *src2, unsigned int nbits)  in bitmap_subset()  argument
360 	if (small_const_nbits(nbits))  in bitmap_subset()
361 		return ! ((*src1 & ~(*src2)) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_subset()
363 		return __bitmap_subset(src1, src2, nbits);  in bitmap_subset()
366 static inline int bitmap_empty(const unsigned long *src, unsigned nbits)  in bitmap_empty()  argument
368 	if (small_const_nbits(nbits))  in bitmap_empty()
369 		return ! (*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_empty()
371 	return find_first_bit(src, nbits) == nbits;  in bitmap_empty()
374 static inline int bitmap_full(const unsigned long *src, unsigned int nbits)  in bitmap_full()  argument
376 	if (small_const_nbits(nbits))  in bitmap_full()
377 		return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_full()
379 	return find_first_zero_bit(src, nbits) == nbits;  in bitmap_full()
382 static __always_inline int bitmap_weight(const unsigned long *src, unsigned int nbits)  in bitmap_weight()  argument
384 	if (small_const_nbits(nbits))  in bitmap_weight()
385 		return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));  in bitmap_weight()
386 	return __bitmap_weight(src, nbits);  in bitmap_weight()
390 		unsigned int nbits)  in bitmap_set()  argument
392 	if (__builtin_constant_p(nbits) && nbits == 1)  in bitmap_set()
396 		 __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_set()
397 		 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_set()
398 		memset((char *)map + start / 8, 0xff, nbits / 8);  in bitmap_set()
400 		__bitmap_set(map, start, nbits);  in bitmap_set()
404 		unsigned int nbits)  in bitmap_clear()  argument
406 	if (__builtin_constant_p(nbits) && nbits == 1)  in bitmap_clear()
410 		 __builtin_constant_p(nbits & BITMAP_MEM_MASK) &&  in bitmap_clear()
411 		 IS_ALIGNED(nbits, BITMAP_MEM_ALIGNMENT))  in bitmap_clear()
412 		memset((char *)map + start / 8, 0, nbits / 8);  in bitmap_clear()
414 		__bitmap_clear(map, start, nbits);  in bitmap_clear()
418 				unsigned int shift, unsigned int nbits)  in bitmap_shift_right()  argument
420 	if (small_const_nbits(nbits))  in bitmap_shift_right()
421 		*dst = (*src & BITMAP_LAST_WORD_MASK(nbits)) >> shift;  in bitmap_shift_right()
423 		__bitmap_shift_right(dst, src, shift, nbits);  in bitmap_shift_right()
427 				unsigned int shift, unsigned int nbits)  in bitmap_shift_left()  argument
429 	if (small_const_nbits(nbits))  in bitmap_shift_left()
430 		*dst = (*src << shift) & BITMAP_LAST_WORD_MASK(nbits);  in bitmap_shift_left()
432 		__bitmap_shift_left(dst, src, shift, nbits);  in bitmap_shift_left()