From b92e9fac400d4ae5bc7a75c568e9844ec53ea329 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 2 May 2007 19:27:11 +0200 Subject: [PATCH] x86: fix amd64-agp aperture validation Under CONFIG_DISCONTIGMEM, assuming that a !pfn_valid() implies all subsequent pfn-s are also invalid is wrong. Thus replace this by explicitly checking against the E820 map. AK: make e820 on x86-64 not initdata Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen Acked-by: Mark Langsdorf --- arch/x86_64/kernel/e820.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/x86_64/kernel') diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index a490fabfcf47..be8965427a93 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c @@ -25,7 +25,7 @@ #include #include -struct e820map e820 __initdata; +struct e820map e820; /* * PFN of last memory page. @@ -98,7 +98,7 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size) * This function checks if any part of the range is mapped * with type. */ -int __meminit +int e820_any_mapped(unsigned long start, unsigned long end, unsigned type) { int i; @@ -112,6 +112,7 @@ e820_any_mapped(unsigned long start, unsigned long end, unsigned type) } return 0; } +EXPORT_SYMBOL_GPL(e820_any_mapped); /* * This function checks if the entire range is mapped with type. -- cgit v1.2.2