linux-kernel - Re: [patch] F_GETPATH implementation

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Message-ID: <Pine.LNX.4.64.0804141607190.7954@alien.or.mcafeemobile.com>
Date:	Mon, 14 Apr 2008 16:09:04 -0700 (PDT)
From:	Davide Libenzi <davidel@...ilserver.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, Al Viro <viro@....linux.org.uk>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [patch] F_GETPATH implementation

On Mon, 14 Apr 2008, Linus Torvalds wrote:

> 
> 
> On Mon, 14 Apr 2008, Davide Libenzi wrote:
> > Index: linux-2.6.mod/include/asm-generic/fcntl.h
> > ===================================================================
> > --- linux-2.6.mod.orig/include/asm-generic/fcntl.h	2008-04-13 15:01:09.000000000 -0700
> > +++ linux-2.6.mod/include/asm-generic/fcntl.h	2008-04-13 18:37:35.000000000 -0700
> > @@ -73,6 +73,7 @@
> >  #define F_SETSIG	10	/* for sockets. */
> >  #define F_GETSIG	11	/* for sockets. */
> >  #endif
> > +#define F_GETPATH	12
> 
> This won't work.
> 
> Different architectures have different F_xyzzy numbers, and 12 is already 
> used by various ones (it's F_SETOWN in asm-parisc/fcntl.h, for example).
> 
> I think you'd have to do it in terms of F_LINUX_SPECIFIC_BASE, like 
> F_NOTIFY is done, for example. That way you avoid these issues.

Right. Will re-munge ...



- Davide


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