linux-kernel - Re: [PATCH 0/4 v3] fs: Remove i

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Message-ID: <20141104202018.GM7996@ZenIV.linux.org.uk>
Date:	Tue, 4 Nov 2014 20:20:26 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Jan Kara <jack@...e.cz>, Christoph Hellwig <hch@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux FS Devel <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH 0/4 v3] fs: Remove i_devices from struct inode

On Tue, Nov 04, 2014 at 12:14:26PM -0800, Andy Lutomirski wrote:

> Yeah, this idea clearly doesn't work.  But I wonder whether the
> revised variant (which may be just moving cd_forget and bd_forget from
> evict to iput_final) would work.

How the hell is it better?  Neither of those will happen as long as dentry
is retained.  And with /dev on tmpfs (which is bloody common) _that_ won't
happen until device node is unlinked...
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