From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Wed, 18 Mar 2009 12:27:35 +0000 (+0100)
Subject: [S390] Dont check for pfn_valid() in uaccess_pt.c
X-Git-Tag: v2.6.29~16^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2887fc5aa60803b9d6d38c79248805f08d8b0e28;p=pandora-kernel.git

[S390] Dont check for pfn_valid() in uaccess_pt.c

pfn_valid() actually checks for a valid struct page and not for a
valid pfn. Using xip mappings w/o struct pages, this will result in
-EFAULT returned by the (page table walk) user copy functions,
even though there is valid memory. Those user copy functions don't
need a struct page, so this patch just removes the pfn_valid() check.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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