From: David S. Miller <davem@davemloft.net>
Date: Wed, 26 May 2010 06:36:31 +0000 (-0700)
Subject: sparc32: Kill none_mask, it's bogus.
X-Git-Tag: v2.6.35-rc6~10^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c87fe1c05d57e3fecd62e56da1b1ac4291116ebf;p=pandora-kernel.git

sparc32: Kill none_mask, it's bogus.

For some reason, the pte_none() calculation for srmmu sparc32
chips was masking out the top 4 bits.  That doesn't make any
sense, as those are just some of the physical bits of the PTE
encoding.

Furthermore, this mistake breaks things when the offset of of a swap
entry has a large enough offset as reported by Тхай Кирилл.

Sun4c always set it to zero, so it's really completely useless,
kill it.

Reported-by: Тхай Кирилл <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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