linux-4.4.1/bitmap_find_next_zero_area_off()
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開始行:
*参照元 [#zf94766c]
#backlinks
*説明 [#be1270fa]
-パス: [[linux-4.4.1/lib/bitmap.c]]
-FIXME: これは何？
--説明
**引数 [#xcb8c4fd]
-unsigned long *map
--
-unsigned long size
--
-unsigned long start
--
-unsigned int nr
--
-unsigned long align_mask
--
-unsigned long align_offset
--
**返り値 [#a0d51e9d]
-unsigned long
--
**参考 [#mbba3264]
*実装 [#g9161992]
/**
* bitmap_find_next_zero_area_off - find a contiguous al...
* @map: The address to base the search on
* @size: The bitmap size in bits
* @start: The bitnumber to start searching at
* @nr: The number of zeroed bits we're looking for
* @align_mask: Alignment mask for zero area
* @align_offset: Alignment offset for zero area.
*
* The @align_mask should be one less than a power of 2;...
* the bit offset of all zero areas this function finds ...
* is multiple of that power of 2.
*/
unsigned long bitmap_find_next_zero_area_off(unsigned lo...
unsigned long size,
unsigned long start,
unsigned int nr,
unsigned long align_mask,
unsigned long align_offset)
{
unsigned long index, end, i;
again:
index = find_next_zero_bit(map, size, start);
-
--[[linux-4.4.1/find_next_zero_bit()]]
/* Align allocation */
index = __ALIGN_MASK(index + align_offset, align_mask) ...
-
--[[linux-4.4.1/__ALIGN_MASK()]]
end = index + nr;
if (end > size)
return end;
i = find_next_bit(map, end, index);
if (i < end) {
start = i + 1;
goto again;
}
-
--[[linux-4.4.1/find_next_bit()]]
return index;
}
EXPORT_SYMBOL(bitmap_find_next_zero_area_off);
-ライセンスに関係なくシンボルを公開する。
--[[linux-4.4.1/EXPORT_SYMBOL()]]
*コメント [#h6b4b8ab]
終了行:
*参照元 [#zf94766c]
#backlinks
*説明 [#be1270fa]
-パス: [[linux-4.4.1/lib/bitmap.c]]
-FIXME: これは何？
--説明
**引数 [#xcb8c4fd]
-unsigned long *map
--
-unsigned long size
--
-unsigned long start
--
-unsigned int nr
--
-unsigned long align_mask
--
-unsigned long align_offset
--
**返り値 [#a0d51e9d]
-unsigned long
--
**参考 [#mbba3264]
*実装 [#g9161992]
/**
* bitmap_find_next_zero_area_off - find a contiguous al...
* @map: The address to base the search on
* @size: The bitmap size in bits
* @start: The bitnumber to start searching at
* @nr: The number of zeroed bits we're looking for
* @align_mask: Alignment mask for zero area
* @align_offset: Alignment offset for zero area.
*
* The @align_mask should be one less than a power of 2;...
* the bit offset of all zero areas this function finds ...
* is multiple of that power of 2.
*/
unsigned long bitmap_find_next_zero_area_off(unsigned lo...
unsigned long size,
unsigned long start,
unsigned int nr,
unsigned long align_mask,
unsigned long align_offset)
{
unsigned long index, end, i;
again:
index = find_next_zero_bit(map, size, start);
-
--[[linux-4.4.1/find_next_zero_bit()]]
/* Align allocation */
index = __ALIGN_MASK(index + align_offset, align_mask) ...
-
--[[linux-4.4.1/__ALIGN_MASK()]]
end = index + nr;
if (end > size)
return end;
i = find_next_bit(map, end, index);
if (i < end) {
start = i + 1;
goto again;
}
-
--[[linux-4.4.1/find_next_bit()]]
return index;
}
EXPORT_SYMBOL(bitmap_find_next_zero_area_off);
-ライセンスに関係なくシンボルを公開する。
--[[linux-4.4.1/EXPORT_SYMBOL()]]
*コメント [#h6b4b8ab]
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