From mboxrd@z Thu Jan  1 00:00:00 1970
From: Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH v5 15/30] arm64/sve: Signal handling support
Date: Mon, 11 Dec 2017 14:07:20 +0000
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To: Kees Cook <keescook@chromium.org>
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On Thu, Dec 07, 2017 at 10:50:38AM -0800, Kees Cook wrote:
> My question is mainly: why not just use copy_*() everywhere instead?
> Having these things so spread out makes it fragile, and there's very
> little performance benefit from using __copy_*() over copy_*().

I think that's more of a general question. Why not just remove the __
versions from the kernel entirely if they're not worth the perf?

Will

From mboxrd@z Thu Jan  1 00:00:00 1970
From: will.deacon@arm.com (Will Deacon)
Date: Mon, 11 Dec 2017 14:07:20 +0000
Subject: [PATCH v5 15/30] arm64/sve: Signal handling support
In-Reply-To: <CAGXu5jLO6tHm-mCPBo-csCw--+_jhLfGD_sHXCkFjmyvdame=g@mail.gmail.com>
References: <1509465082-30427-1-git-send-email-Dave.Martin@arm.com>
 <1509465082-30427-16-git-send-email-Dave.Martin@arm.com>
 <CAGXu5jJgsAg1VBMbx=mV3ep4hzs+1G46Sow4eeFqCK31b_sORA@mail.gmail.com>
 <20171207104948.GE31900@arm.com>
 <CAGXu5jLO6tHm-mCPBo-csCw--+_jhLfGD_sHXCkFjmyvdame=g@mail.gmail.com>
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On Thu, Dec 07, 2017 at 10:50:38AM -0800, Kees Cook wrote:
> My question is mainly: why not just use copy_*() everywhere instead?
> Having these things so spread out makes it fragile, and there's very
> little performance benefit from using __copy_*() over copy_*().

I think that's more of a general question. Why not just remove the __
versions from the kernel entirely if they're not worth the perf?

Will