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authorH. Peter Anvin <hpa@zytor.com>2009-11-23 23:49:20 +0100
committerH. Peter Anvin <hpa@zytor.com>2009-11-24 02:09:59 +0100
commit8a27138924f64d2f30c1022f909f74480046bc3f (patch)
tree72d7d40e1cba07b08fea49a064c6388a6d2bd780 /arch/x86/include/asm/pgtable.h
parentx86, mm: Call is_untracked_pat_range() rather than is_ISA_range() (diff)
downloadlinux-8a27138924f64d2f30c1022f909f74480046bc3f.tar.xz
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x86, mm: is_untracked_pat_range() takes a normal semiclosed range
is_untracked_pat_range() -- like its components, is_ISA_range() and is_GRU_range(), takes a normal semiclosed interval (>=, <) whereas the PAT code called it as if it took a closed range (>=, <=). Fix. Although this is a bug, I believe it is non-manifest, simply because none of the callers will call this with non-page-aligned addresses. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> LKML-Reference: <20091119202341.GA4420@sgi.com>
Diffstat (limited to 'arch/x86/include/asm/pgtable.h')
-rw-r--r--arch/x86/include/asm/pgtable.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 1de2094d2e57..a34c785c5a63 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -274,7 +274,7 @@ static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
/*
* PAT type is always WB for untracked ranges, so no need to check.
*/
- if (x86_platform.is_untracked_pat_range(paddr, paddr + size - 1))
+ if (x86_platform.is_untracked_pat_range(paddr, paddr + size))
return 1;
/*