25  * no particular effort to keep them zero.  It ensures that
160 void bitmap_set(unsigned long *map, long start, long nr)  in bitmap_set()  argument
162     unsigned long *p = map + BIT_WORD(start);  in bitmap_set()
164     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);  in bitmap_set()
169     while (nr - bits_to_set >= 0) {  in bitmap_set()
171         nr -= bits_to_set;  in bitmap_set()
182 void bitmap_set_atomic(unsigned long *map, long start, long nr)  in bitmap_set_atomic()  argument
184     unsigned long *p = map + BIT_WORD(start);  in bitmap_set_atomic()
186     int bits_to_set = BITS_PER_LONG - (start % BITS_PER_LONG);  in bitmap_set_atomic()
192     if (nr - bits_to_set > 0) {  in bitmap_set_atomic()
194         nr -= bits_to_set;  in bitmap_set_atomic()
204             nr -= BITS_PER_LONG;  in bitmap_set_atomic()
221 void bitmap_clear(unsigned long *map, long start, long nr)  in bitmap_clear()  argument
223     unsigned long *p = map + BIT_WORD(start);  in bitmap_clear()
225     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);  in bitmap_clear()
230     while (nr - bits_to_clear >= 0) {  in bitmap_clear()
232         nr -= bits_to_clear;  in bitmap_clear()
243 bool bitmap_test_and_clear(unsigned long *map, long start, long nr)  in bitmap_test_and_clear()  argument
245     unsigned long *p = map + BIT_WORD(start);  in bitmap_test_and_clear()
247     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);  in bitmap_test_and_clear()
254     if (nr - bits_to_clear > 0) {  in bitmap_test_and_clear()
259         nr -= bits_to_clear;  in bitmap_test_and_clear()
271             nr -= BITS_PER_LONG;  in bitmap_test_and_clear()
288 bool bitmap_test_and_clear_atomic(unsigned long *map, long start, long nr)  in bitmap_test_and_clear_atomic()  argument
290     unsigned long *p = map + BIT_WORD(start);  in bitmap_test_and_clear_atomic()
292     int bits_to_clear = BITS_PER_LONG - (start % BITS_PER_LONG);  in bitmap_test_and_clear_atomic()
300     if (nr - bits_to_clear > 0) {  in bitmap_test_and_clear_atomic()
303         nr -= bits_to_clear;  in bitmap_test_and_clear_atomic()
316             nr -= BITS_PER_LONG;  in bitmap_test_and_clear_atomic()
342         nr -= BITS_PER_LONG;  in bitmap_copy_and_clear_atomic()
349  * bitmap_find_next_zero_area - find a contiguous aligned zero area
350  * @map: The address to base the search on
358  * power of 2. A @align_mask of 0 means no alignment is required.
360 unsigned long bitmap_find_next_zero_area(unsigned long *map,  in bitmap_find_next_zero_area()  argument
368     index = find_next_zero_bit(map, size, start);  in bitmap_find_next_zero_area()
377     i = find_next_bit(map, end, index);  in bitmap_find_next_zero_area()
471     right_mask = (1ul << shift) - 1;  in bitmap_copy_with_src_offset()
476         *dst |= (src[1] & right_mask) << (BITS_PER_LONG - shift);  in bitmap_copy_with_src_offset()
479         nbits -= BITS_PER_LONG;  in bitmap_copy_with_src_offset()
482     if (nbits > BITS_PER_LONG - shift) {  in bitmap_copy_with_src_offset()
484         nbits -= BITS_PER_LONG - shift;  in bitmap_copy_with_src_offset()
485         last_mask = (1ul << nbits) - 1;  in bitmap_copy_with_src_offset()
486         *dst |= (src[1] & last_mask) << (BITS_PER_LONG - shift);  in bitmap_copy_with_src_offset()
488         last_mask = (1ul << nbits) - 1;  in bitmap_copy_with_src_offset()
513     right_mask = (1ul << (BITS_PER_LONG - shift)) - 1;  in bitmap_copy_with_dst_offset()
516     *dst &= (1ul << shift) - 1;  in bitmap_copy_with_dst_offset()
519         dst[1] = (*src & left_mask) >> (BITS_PER_LONG - shift);  in bitmap_copy_with_dst_offset()
522         nbits -= BITS_PER_LONG;  in bitmap_copy_with_dst_offset()
525     if (nbits > BITS_PER_LONG - shift) {  in bitmap_copy_with_dst_offset()
527         nbits -= BITS_PER_LONG - shift;  in bitmap_copy_with_dst_offset()
528         last_mask = ((1ul << nbits) - 1) << (BITS_PER_LONG - shift);  in bitmap_copy_with_dst_offset()
529         dst[1] = (*src & last_mask) >> (BITS_PER_LONG - shift);  in bitmap_copy_with_dst_offset()
531         last_mask = (1ul << nbits) - 1;  in bitmap_copy_with_dst_offset()