libxfs: Optimize the loop for xfs_bitmap_empty

If there is any non zero bit in a long bitmap, it can jump out of the
loop and finish the function as soon as possible.

Signed-off-by: Jia He <hejianet@gmail.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Jia He 2016-01-04 16:10:19 +11:00 коммит произвёл Dave Chinner
Родитель 168309855a
Коммит 1d4292bfdc
1 изменённых файлов: 3 добавлений и 3 удалений

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@ -32,13 +32,13 @@ int
xfs_bitmap_empty(uint *map, uint size)
{
uint i;
uint ret = 0;
for (i = 0; i < size; i++) {
ret |= map[i];
if (map[i] != 0)
return 0;
}
return (ret == 0);
return 1;
}
/*