linux-kernel - Re: [x86] copy_from{to}

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Message-ID: <20150824120528.GJ14390@unpythonic.net>
Date:	Mon, 24 Aug 2015 07:05:28 -0500
From:	Jeff Epler <jepler@...ythonic.net>
To:	yalin wang <yalin.wang2010@...il.com>
Cc:	Borislav Petkov <bp@...e.de>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>, mingo@...hat.com,
	x86@...nel.org, open list <linux-kernel@...r.kernel.org>,
	Will Deacon <will.deacon@....com>
Subject: Re: [x86] copy_from{to}_user question

On Mon, Aug 24, 2015 at 03:52:11PM +0800, yalin wang wrote:
> i am not clear about what is STAC / SMAP ?
> could you give me a link for understanding ?

the first item I found by googling was
https://lwn.net/Articles/517251/

Jeff
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