linux-kernel - Re: [PATCH 13/25] Unionfs: add un/likely conditionals on dir ops

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Date:	Wed, 26 Sep 2007 23:40:34 +0200
From:	roel <12o3l@...cali.nl>
To:	Erez Zadok <ezk@...sunysb.edu>
CC:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, viro@....linux.org.uk,
	hch@...radead.org
Subject: Re: [PATCH 13/25] Unionfs: add un/likely conditionals on dir ops

Erez Zadok wrote:

> @@ -194,7 +194,7 @@ int check_empty(struct dentry *dentry, struct unionfs_dir_state **namelist)
>  
>  	BUG_ON(!S_ISDIR(dentry->d_inode->i_mode));
>  
> -	if ((err = unionfs_partial_lookup(dentry)))
> +	if (unlikely((err = unionfs_partial_lookup(dentry))))
>  		goto out;
>  
>  	bstart = dbstart(dentry);

Is it bad to leave this assignment within the unlikely()?
-
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