Hi Yue,

On 2019/6/28 11:42, Yue Hu wrote:
> From: Yue Hu <huy...@yulong.com>
> 
> Currently, we will check if inode layout is compression or inline if
> the inode is special in fill_inode(). Also set ->i_mapping->a_ops for
> it. That is pointless since the both modes won't be set for special
> inode when creating EROFS filesystem image. So, let's avoid it.
> 
> Signed-off-by: Yue Hu <huy...@yulong.com>

Have you test this patch with some actual image with legacy mkfs since
new mkfs framework have not supported special inode...

I think that is fine in priciple, however, in case to introduce some potential
issues, I will test this patch later. I will give a Reviewed-by tag after I 
tested
this patch.

Thanks,
Gao Xiang

> ---
>  drivers/staging/erofs/inode.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c
> index 1433f25..2fe0f6d 100644
> --- a/drivers/staging/erofs/inode.c
> +++ b/drivers/staging/erofs/inode.c
> @@ -205,6 +205,7 @@ static int fill_inode(struct inode *inode, int isdir)
>                       S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
>                       inode->i_op = &erofs_generic_iops;
>                       init_special_inode(inode, inode->i_mode, inode->i_rdev);
> +                     goto out_unlock;
>               } else {
>                       err = -EIO;
>                       goto out_unlock;
> 
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