From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Date: Sat, 27 May 2006 16:43:04 +0000 (+0400)
Subject: [MIPS] Fix swap entry for MIPS32 36-bit physical address
X-Git-Tag: v2.6.17-rc6~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ebba0e2f56ee77270a9ef8e92c1b4ec38e5f419;p=pandora-kernel.git

[MIPS] Fix swap entry for MIPS32 36-bit physical address

With 64-bit physical address enabled, 'swapon' was causing kernel oops on
Alchemy CPUs (MIPS32) because of the swap entry type field corrupting the
_PAGE_FILE bit in 'pte_low' field. So, switch to storing the swap entry in
'pte_high' field using all its bits except _PAGE_GLOBAL and _PAGE_VALID which
gives 25 bits for the swap entry offset.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

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