On Wed, Nov 11, 2015 at 03:49:01PM +0800, Jia He wrote:
> 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@xxxxxxxxx>
> Cc: Dave Chinner <david@xxxxxxxxxxxxx>
> Cc: Brian Foster <bfoster@xxxxxxxxxx>
> ---
Looks good to me:
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> fs/xfs/libxfs/xfs_bit.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_bit.c b/fs/xfs/libxfs/xfs_bit.c
> index 0e8885a..0a94cce 100644
> --- a/fs/xfs/libxfs/xfs_bit.c
> +++ b/fs/xfs/libxfs/xfs_bit.c
> @@ -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;
> }
>
> /*
> --
> 2.5.0
>
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