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git: kernel -- Remove i686_pagezero.

From: Venkatesh Srinivas <vsrinivas@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Sun, 11 Dec 2011 17:23:42 -0800 (PST)

commit 1fa155830ba6bb658db68ed6de037df9b033ed7f
Author: Venkatesh Srinivas <me@endeavour.zapto.org>
Date:   Fri Dec 9 22:32:10 2011 -0800

    kernel -- Remove i686_pagezero.
    i686_pagezero spent read bandwidth to search for the first non-zero word
    in a page and zeroed from there. This was silly; the contents of the page
    didn't matter and reading it was a waste of time. bzero() is used directly.

Summary of changes:
 sys/platform/pc32/i386/bzero.s     |   50 ------------------------------------
 sys/platform/pc32/i386/pmap.c      |   16 +----------
 sys/platform/pc32/include/md_var.h |    1 -
 3 files changed, 2 insertions(+), 65 deletions(-)


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