linux-kernel - Re: [pnfs] [GIT BISECT] first bad commit: 1f36f774 Switch !O_CREAT case to use of do

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Message-ID: <20100325110031.GX30031@ZenIV.linux.org.uk>
Date:	Thu, 25 Mar 2010 11:00:31 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Benny Halevy <bhalevy@...asas.com>
Cc:	Boaz Harrosh <bharrosh@...asas.com>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	"J. Bruce Fields" <bfields@...i.umich.edu>,
	pNFS Mailing List <pnfs@...ux-nfs.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Doug Nazar <nazard.lkml@...il.com>,
	Trond Myklebust <Trond.Myklebust@...app.com>
Subject: Re: [pnfs] [GIT BISECT] first bad commit: 1f36f774 Switch !O_CREAT
 case to use of do_last()

On Thu, Mar 25, 2010 at 12:56:40PM +0200, Benny Halevy wrote:
> -		if (*want_dir && !path->dentry->d_inode->i_op->lookup)
> +		if (*want_dir && !path->dentry->d_inode->i_op->lookup) {
> +			WARN_ON(1);
>  			goto exit_dput;
> +		}
>  		path_to_nameidata(path, nd);
>  		audit_inode(pathname, nd->path.dentry);
>  		goto ok;
> 
> but it is NOT tripping for this scenario.
> 
> (for some reason I saw it tripping when building the kernel over nfs
> but it's benign)

It's ENOTDIR, not EISDIR, anyway.  Happens if you ask to open foo/ or
foo with O_DIRECTORY when foo is not a directory.
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