Re: [PATCH 5/5] ext4: Log error when lookup of encoded dentry fails

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On Mon, Mar 21, 2022 at 11:00:04PM -0400, Gabriel Krisman Bertazi wrote:
> If the volume is in strict mode, ext4_ci_compare can report a broken
> encoding name.  This will not trigger on a bad lookup, which is caught
> earlier, only if the actual disk name is bad.
> 
> Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
> ---
>  fs/ext4/namei.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
> index 8520115cd5c2..c321c6fdb4ae 100644
> --- a/fs/ext4/namei.c
> +++ b/fs/ext4/namei.c
> @@ -1456,6 +1456,9 @@ static bool ext4_match(struct inode *parent,
>  			 * only case where it happens is on a disk
>  			 * corruption or ENOMEM.
>  			 */
> +			if (ret == -EINVAL)
> +				EXT4_ERROR_INODE(parent,
> +						 "Bad encoded file in directory");

Maybe have this say "Bad encoded filename" instead of "Bad encoded file"?

- Eric



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