Re: [PATCH] btrfs: make 1-bit bit-fields unsigned int

[Qu Wenruo <quwenruo.btrfs@xxxxxxx>]

On 2021/11/11 03:20, Colin Ian King wrote:
> The bitfields have_csum and io_error are currently signed which is
> not recommended as the representation is an implementation defined
> behaviour. Fix this by making the bit-fields unsigned ints.
>
> Fixes: 2c36395430b0 ("btrfs: scrub: remove the anonymous structure from scrub_page")
> Signed-off-by: Colin Ian King <colin.i.king@xxxxxxxxx>

Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>

Thanks,
Qu
> ---
>   fs/btrfs/scrub.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
> index cf82ea6f54fb..8f6ceea33969 100644
> --- a/fs/btrfs/scrub.c
> +++ b/fs/btrfs/scrub.c
> @@ -73,8 +73,8 @@ struct scrub_page {
>   	u64			physical_for_dev_replace;
>   	atomic_t		refs;
>   	u8			mirror_num;
> -	int			have_csum:1;
> -	int			io_error:1;
> +	unsigned int		have_csum:1;
> +	unsigned int		io_error:1;
>   	u8			csum[BTRFS_CSUM_SIZE];
>
>   	struct scrub_recover	*recover;