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x86: Ioremap: fix wrong physical address handling in PAT code 

The following two commits fixed a problem that x86 ioremap() doesn't handle
physical address higher than 32-bit properly in X86_32 PAE mode.

 ffa71f33a8 (x86, ioremap: Fix incorrect
 physical address handling in PAE mode)

 35be1b716a (x86, ioremap: Fix normal
 ram range check)

But these fixes are not enough, since pat_pagerange_is_ram() in PAT code
also has a same problem. This patch fixes it.

Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
LKML-Reference: <4C47DDCF.80300@jp.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Yasuaki Ishimatsu 2010-07-22 14:57:35 +09:00 committed by Thomas Gleixner
parent 3f8afb77cd
commit 3709c85735
1 changed files with 1 additions and 1 deletions
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2
arch/x86/mm/pat.c
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@ -158,7 +158,7 @@ static unsigned long pat_x_mtrr_type(u64 start, u64 end, unsigned long req_type)
return req_type;
}
static int pat_pagerange_is_ram(unsigned long start, unsigned long end)
static int pat_pagerange_is_ram(resource_size_t start, resource_size_t end)
{
int ram_page = 0, not_rampage = 0;
unsigned long page_nr;