linux-kernel - Re: [patch 03/11] fuse: add reference counting to fuse

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Message-Id: <E1II0Is-0003oA-00@dorka.pomaz.szeredi.hu>
Date:	Mon, 06 Aug 2007 12:59:14 +0200
From:	Miklos Szeredi <miklos@...redi.hu>
To:	ioe-lkml@...eria.de
CC:	miklos@...redi.hu, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 03/11] fuse: add reference counting to fuse_file

> On Friday 03 August 2007, Miklos Szeredi wrote:
> > From: Miklos Szeredi <mszeredi@...e.cz>
> > 
> > Make lifetime of 'struct fuse_file' independent from 'struct file' by
> > adding a reference counter and destructor.
> 
> What about using krefs to implement that?

Thanks for the suggestion.  I'm aware of kref, but I don't see the
huge advantage over using the raw atomic interface.

> This will also fix the missing smp_barriers,

Why are the barriers needed?  The documentation doesn't say anything
about that.

> is very simple, saves code, makes your life easier and is a well
> known known kernel infrastructure :-)

I think it saves one line, and adds another, for a total of zero lines
saved ;)

Thanks,
Miklos
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