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Date:   Fri, 27 Mar 2020 10:52:42 -0600
From:   Jonathan Corbet <corbet@lwn.net>
To:     Nick Desaulniers <ndesaulniers@google.com>
Cc:     "H . Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, linux-kernel@vger.kernel.org,
        linux-doc@vger.kernel.org
Subject: Re: [PATCH v2] Documentation: x86: exception-tables: document
 CONFIG_BUILDTIME_TABLE_SORT
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References: <6e26c798-1439-2bbd-6801-8fd21c4e6926@zytor.com>
        <20200327000951.84071-1-ndesaulniers@google.com>
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On Thu, 26 Mar 2020 17:09:51 -0700
Nick Desaulniers <ndesaulniers@google.com> wrote:

> Provide more information about __ex_table sorting post link.
> 
> The exception tables and fixup tables use a commonly recurring pattern
> in the kernel of storing the address of labels as date in custom ELF
> sections, then finding these sections, iterating elements within them,
> and possibly revisiting them or modifying the data at these addresses.
> 
> Sorting readonly arrays to minimize runtime penalties is quite clever.
> 
> Suggested-by: H. Peter Anvin <hpa@zytor.com>
> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>

I've applied this, thanks.

jon