Re: [PATCH v2] vfs: return -EOVERFLOW in generic_remap_checks() when overflow check fails

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On Fri, Sep 27, 2024 at 02:53:25PM +0800, Julian Sun wrote:
> Keep the errno value consistent with the equivalent check in
> generic_copy_file_checks() that returns -EOVERFLOW, which feels like the
> more appropriate value to return compared to the overly generic -EINVAL.
> 
> Signed-off-by: Julian Sun <sunjunchao2870@xxxxxxxxx>

Looks better this time :)
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>

--D

> ---
>  fs/remap_range.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/remap_range.c b/fs/remap_range.c
> index 6fdeb3c8cb70..1333f67530c0 100644
> --- a/fs/remap_range.c
> +++ b/fs/remap_range.c
> @@ -47,7 +47,7 @@ static int generic_remap_checks(struct file *file_in, loff_t pos_in,
>  	/* Ensure offsets don't wrap. */
>  	if (check_add_overflow(pos_in, count, &tmp) ||
>  	    check_add_overflow(pos_out, count, &tmp))
> -		return -EINVAL;
> +		return -EOVERFLOW;
>  
>  	size_in = i_size_read(inode_in);
>  	size_out = i_size_read(inode_out);
> -- 
> 2.39.2
> 




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