[PATCH] x86: ioremap: fix wrong physical address handling in PAT code
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From: Yasuaki Ishimatsu on 22 Jul 2010 02:00 From: Yasuaki Ishimatsu <isimatu.yasuaki(a)jp.fujitsu.com> 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. ffa71f33a820d1ab3f2fc5723819ac60fb76080b (x86, ioremap: Fix incorrect physical address handling in PAE mode) 35be1b716a475717611b2dc04185e9d80b9cb693 (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(a)jp.fujitsu.com> --- It is for -tip tree. Index: linux-2.6-x86/arch/x86/mm/pat.c =================================================================== --- linux-2.6-x86.orig/arch/x86/mm/pat.c 2010-07-22 03:04:38.000000000 +0900 +++ linux-2.6-x86/arch/x86/mm/pat.c 2010-07-22 03:47:36.000000000 +0900 @@ -158,7 +158,7 @@ static unsigned long pat_x_mtrr_type(u64 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |