1BITMAP_FIND_NEXT_ZER(9) Basic Kernel Library Functions BITMAP_FIND_NEXT_ZER(9)
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NAME

6       bitmap_find_next_zero_area_off - find a contiguous aligned zero area
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SYNOPSIS

9       unsigned long bitmap_find_next_zero_area_off(unsigned long * map,
10                                                    unsigned long size,
11                                                    unsigned long start,
12                                                    unsigned int nr,
13                                                    unsigned long align_mask,
14                                                    unsigned long align_offset);
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ARGUMENTS

17       map
18           The address to base the search on
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20       size
21           The bitmap size in bits
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23       start
24           The bitnumber to start searching at
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26       nr
27           The number of zeroed bits we're looking for
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29       align_mask
30           Alignment mask for zero area
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32       align_offset
33           Alignment offset for zero area.
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DESCRIPTION

36       The align_mask should be one less than a power of 2; the effect is that
37       the bit offset of all zero areas this function finds plus align_offset
38       is multiple of that power of 2.
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41Kernel Hackers Manual 3.10         June 2019           BITMAP_FIND_NEXT_ZER(9)
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