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Date: Mon, 16 Dec 2013 11:12:33 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: Hugh Dickins <hughd@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: mm: ptl is not bloated if it fits in pointer
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On Mon, Dec 16, 2013 at 01:04:13AM -0800, Hugh Dickins wrote:
> It's silly to force the 64-bit CONFIG_GENERIC_LOCKBREAK architectures

So yes that's unfortunate, but why are people using that
GENERIC_LOCKBREAK stuff to begin with? Its atrocious, a much better path
would be to remove it.