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References: <cover.1451952351.git.tony.luck@intel.com>
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Date: Wed, 6 Jan 2016 09:48:31 -0800
Message-ID: <CA+55aFx7_sP_R+n6c3Ew=KVcwJwwgXhB57pSG9Kh24oiAqd+vw@mail.gmail.com>
Subject: Re: [PATCH v7 1/3] x86: Add classes to exception tables
From: Linus Torvalds <torvalds@linux-foundation.org>
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To: "Luck, Tony" <tony.luck@intel.com>
Cc: Borislav Petkov <bp@alien8.de>, Peter Anvin <hpa@zytor.com>, Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Andrew Morton <akpm@linux-foundation.org>, Andy Lutomirski <luto@kernel.org>, Dan Williams <dan.j.williams@intel.com>, elliott@hpe.com, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, "linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>, the arch/x86 maintainers <x86@kernel.org>

On Wed, Jan 6, 2016 at 9:35 AM, Luck, Tony <tony.luck@intel.com> wrote:
>
> Linus, Peter, Ingo, Thomas: Can we head this direction? The code is cleaner
> and more flexible. Or should we stick with Andy's clever way to squeeze a
> couple of "class" bits into the fixup field of the exception table?

I'd rather not be clever in order to save just a tiny amount of space
in the exception table, which isn't really criticial for anybody.

So I think Borislav's patch has the advantage of being pretty
straightforward and allowing arbitrary fixups, in case we end up
having localized special cases..

               Linus

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