linux-kernel - Re: [PATCH] f2fs: fix to stop recovering dot dentries in a readonly fs

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Date:	Mon, 28 Dec 2015 14:53:50 -0800
From:	Jaegeuk Kim <jaegeuk@...nel.org>
To:	Chao Yu <chao2.yu@...sung.com>
Cc:	linux-f2fs-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] f2fs: fix to stop recovering dot dentries in a readonly
 fs

Hi Chao,

On Mon, Dec 28, 2015 at 06:12:45PM +0800, Chao Yu wrote:
> If filesystem is readonly, don't recover inline dot inode.
> 
> Signed-off-by: Chao Yu <chao2.yu@...sung.com>
> ---
>  fs/f2fs/namei.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
> index 5cc4128..b4a5836 100644
> --- a/fs/f2fs/namei.c
> +++ b/fs/f2fs/namei.c
> @@ -269,7 +269,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
>  	if (IS_ERR(inode))
>  		return ERR_CAST(inode);
>  
> -	if (f2fs_has_inline_dots(inode)) {
> +	if (f2fs_has_inline_dots(inode) && !f2fs_readonly(dir->i_sb)) {

We need to return -EROFS if f2fs is readonly?

Thanks,

>  		err = __recover_dot_dentries(inode, dir->i_ino);
>  		if (err)
>  			goto err_out;
> -- 
> 2.6.3
> 
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