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Message-ID: <87y1b54gwq.fsf@mailhost.krisman.be>
Date: Tue, 27 Feb 2024 18:38:13 -0500
From: Gabriel Krisman Bertazi <krisman@...e.de>
To: Eugen Hristev <eugen.hristev@...labora.com>
Cc: tytso@....edu, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
jaegeuk@...nel.org, chao@...nel.org,
linux-f2fs-devel@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel@...labora.com,
viro@...iv.linux.org.uk, brauner@...nel.org, jack@...e.cz, Gabriel
Krisman Bertazi <krisman@...labora.com>, Eric Biggers
<ebiggers@...gle.com>
Subject: Re: [PATCH v12 6/8] ext4: Log error when lookup of encoded dentry
fails
Eugen Hristev <eugen.hristev@...labora.com> writes:
> From: Gabriel Krisman Bertazi <krisman@...labora.com>
>
> 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.
>
> Reviewed-by: Eric Biggers <ebiggers@...gle.com>
> Signed-off-by: Gabriel Krisman Bertazi <krisman@...labora.com>
> Signed-off-by: Eugen Hristev <eugen.hristev@...labora.com>
> ---
> fs/ext4/namei.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
> index 6e7af8dc4dde..7d357c417475 100644
> --- a/fs/ext4/namei.c
> +++ b/fs/ext4/namei.c
> @@ -1477,6 +1477,9 @@ 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,
> + "Directory contains filename that is invalid UTF-8");
> return false;
> }
> return ret;
Can you add a patch doing the same for f2fs?
--
Gabriel Krisman Bertazi
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