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Message-ID: <896b49d1-8d19-2bfc-ca20-6b4704e737c2@aol.com>
Date:   Sun, 14 Oct 2018 00:37:11 +0800
From:   Gao Xiang <hsiangkao@....com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org
Cc:     linux-erofs@...ts.ozlabs.org, LKML <linux-kernel@...r.kernel.org>,
        Al Viro <viro@...IV.linux.org.uk>,
        linux-fsdevel@...r.kernel.org, Miao Xie <miaoxie@...wei.com>
Subject: Re: [PATCH RESEND] staging: erofs: clean erofs_lookup()

Hi,

Please ignore this patch, it has been queued by Al for 4.20 in
https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git/commit/?h=for-next&id=8300807f9e2dffb6552514763ad60e005c12eb94

Sorry for bothering...

Thanks,
Gao Xiang

On 2018/10/13 1:59, Gao Xiang via Linux-erofs wrote:
> From: Al Viro <viro@...IV.linux.org.uk>
> 
> 	d_splice_alias() does the right thing when given
> ERR_PTR(-E...) for inode.  No need for gotos, multiple
> returns, etc. in there.
> 
> Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
> Reviewed-by: Gao Xiang <gaoxiang25@...wei.com>
> Signed-off-by: Gao Xiang <gaoxiang25@...wei.com>
> ---
> Hi,
> 
> Frankly, I think it is a straight-forward cleanup by Al enough
> to be submitted to Linux 4.20 in constant to other pending fixes
> found in the process of EROFS productization these days, which
> I need more time to think over and fix formally to the community.
> 
> p.s. I have no idea whether this patch has been already queued up
> in Al's fs tree for 4.20... :'( +Cc Greg / the staging mailing
> list as well. Or please ignore this email...
> 
> Thanks,
> Gao Xiang
> 
>  drivers/staging/erofs/namei.c | 19 +++++++------------
>  1 file changed, 7 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/staging/erofs/namei.c b/drivers/staging/erofs/namei.c
> index 0039b76..5596c52 100644
> --- a/drivers/staging/erofs/namei.c
> +++ b/drivers/staging/erofs/namei.c
> @@ -223,18 +223,13 @@ static struct dentry *erofs_lookup(struct inode *dir,
>  	if (err == -ENOENT) {
>  		/* negative dentry */
>  		inode = NULL;
> -		goto negative_out;
> -	} else if (unlikely(err))
> -		return ERR_PTR(err);
> -
> -	debugln("%s, %s (nid %llu) found, d_type %u", __func__,
> -		dentry->d_name.name, nid, d_type);
> -
> -	inode = erofs_iget(dir->i_sb, nid, d_type == EROFS_FT_DIR);
> -	if (IS_ERR(inode))
> -		return ERR_CAST(inode);
> -
> -negative_out:
> +	} else if (unlikely(err)) {
> +		inode = ERR_PTR(err);
> +	} else {
> +		debugln("%s, %s (nid %llu) found, d_type %u", __func__,
> +			dentry->d_name.name, nid, d_type);
> +		inode = erofs_iget(dir->i_sb, nid, d_type == EROFS_FT_DIR);
> +	}
>  	return d_splice_alias(inode, dentry);
>  }
>  
> 

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