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From: Jaegeuk Kim <jaegeuk@kernel.org>
To: Wu Bo <bo.wu@vivo.com>
Cc: wubo.oduw@gmail.com, linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/1] f2fs: fix args passed to trace_f2fs_lookup_end
Date: Fri, 26 May 2023 10:21:11 -0700	[thread overview]
Message-ID: <ZHDqhy4E9iSnneLa@google.com> (raw)
In-Reply-To: <20230524100812.80741-1-bo.wu@vivo.com>

On 05/24, Wu Bo wrote:
> The NULL return of 'd_splice_alias' dosen't mean error.
> 
> Signed-off-by: Wu Bo <bo.wu@vivo.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 77a71276ecb1..e5a3e39ce90c 100644
> --- a/fs/f2fs/namei.c
> +++ b/fs/f2fs/namei.c
> @@ -577,7 +577,7 @@ static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry,
>  #endif
>  	new = d_splice_alias(inode, dentry);
>  	err = PTR_ERR_OR_ZERO(new);
> -	trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
> +	trace_f2fs_lookup_end(dir, new ? new : dentry, ino, err);

Shouldn't give an error pointer to the dentry field.

How about just giving the err?

-       err = PTR_ERR_OR_ZERO(new);
-       trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err);
+       trace_f2fs_lookup_end(dir, dentry, ino, PTR_ERR_OR_ZERO(new));


>  	return new;
>  out_iput:
>  	iput(inode);
> -- 
> 2.35.3


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  reply	other threads:[~2023-05-26 17:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-24 10:08 [f2fs-dev] [PATCH 1/1] f2fs: fix args passed to trace_f2fs_lookup_end Wu Bo via Linux-f2fs-devel
2023-05-26 17:21 ` Jaegeuk Kim [this message]
2023-05-27  1:01   ` Chao Yu
2023-05-29  4:13     ` Wu Bo via Linux-f2fs-devel
2023-05-29 10:18       ` Chao Yu
2023-05-29 12:41         ` Wu Bo

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