linux-kernel - Re: [PATCH] asm-generic: add EMAXERRNO

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Date:	Mon, 15 Jun 2009 07:31:51 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	liqin.chen@...plusct.com,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org
Subject: Re: [PATCH] asm-generic: add EMAXERRNO

On Mon, Jun 15, 2009 at 03:30:09PM +0200, Arnd Bergmann wrote:
> Some architectures want to flag error returns from a syscall based on
> the return value. The range from zero to -511 is for errors that
> we can return to user space, so add a #define for this to
> include/asm-generic/errno.h.

I thought we could return anything up to -4095.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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