linux-kernel - Re: [PATCH 1/1] f2fs: pass I

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Message-ID: <45eb63c6-a147-776a-99b5-7ac06848ede8@kernel.org>
Date:   Wed, 17 May 2023 10:44:43 +0800
From:   Chao Yu <chao@...nel.org>
To:     Wu Bo <bo.wu@...o.com>, Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, wubo.oduw@...il.com
Subject: Re: [PATCH 1/1] f2fs: pass I_NEW flag to trace event

On 2023/5/16 20:07, Wu Bo wrote:
> Modify the order between 'trace_f2fs_iget' & 'unlock_new_inode', so the
> I_NEW can pass to the trace event when the inode initialised.

Why is it needed? And trace_f2fs_iget() won't print inode->i_state?

Thanks,

> 
> Signed-off-by: Wu Bo <bo.wu@...o.com>
> ---
>   fs/f2fs/inode.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
> index cf4327ad106c..caf959289fe7 100644
> --- a/fs/f2fs/inode.c
> +++ b/fs/f2fs/inode.c
> @@ -577,8 +577,8 @@ struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
>   		file_dont_truncate(inode);
>   	}
>   
> -	unlock_new_inode(inode);
>   	trace_f2fs_iget(inode);
> +	unlock_new_inode(inode);
>   	return inode;
>   
>   bad_inode: