linux-kernel - Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit?

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Message-ID: <20151218085914.GA16529@infradead.org>
Date:	Fri, 18 Dec 2015 00:59:14 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	Andy Lutomirski <luto@...nel.org>
Cc:	Dave Hansen <dave.hansen@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Brian Gerst <brgerst@...il.com>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: Rethinking sigcontext's xfeatures slightly for PKRU's benefit?

On Thu, Dec 17, 2015 at 05:48:56PM -0800, Andy Lutomirski wrote:
> Hi all-
> 
> I think that, for PKRU in particular, we want the default signal
> handling behavior to be a bit unusual.

Stupid question, but what the heck is PKRU?  A grep of the kernel tree
shows no results, and a web search returns mostly Thai language results.

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