From: John David Anglin <dave@hiauly1.hia.nrc.ca>
Date: Sun, 11 Apr 2010 16:36:14 +0000 (+0000)
Subject: parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
X-Git-Tag: v2.6.35-rc1~14^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=210501aa570fdaa8b06e56fd1c04f31f2d3f368b;p=pandora-kernel.git

parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic

Based on the generic implementation of kmap_atomic and kunmap_atomic,
we should call pagefault_disable and pagefault_enable in our PA8000
implementation.

The define for kmap_atomic_prot was also missing, and I updated
kmap_atomic_pfn to use the generic implementation because of the
change to kmap_atomic.

I believe that this change is needed to fix the fork copy-on-write
bug.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
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