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authorAlex Shi <alex.shi@intel.com>2012-07-20 09:18:23 +0800
committerH. Peter Anvin <hpa@zytor.com>2012-07-20 15:01:48 -0700
commit7efa1c87963d23cc57ba40c07316d3e28cc75a3a (patch)
treea76c03fb96d4d804bcc4093b5e8785617564a054 /arch/x86
parenteffee4b9b3b0aa5770bcd98de5f672b05b27703c (diff)
downloadop-kernel-dev-7efa1c87963d23cc57ba40c07316d3e28cc75a3a.zip
op-kernel-dev-7efa1c87963d23cc57ba40c07316d3e28cc75a3a.tar.gz
x86/tlb: Fix build warning and crash when building for !SMP
The incompatible parameter of flush_tlb_mm_range cause build warning. Fix it by correct parameter. Ingo Molnar found that this could also cause a user space crash. Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Alex Shi <alex.shi@intel.com> Link: http://lkml.kernel.org/r/1342747103-19765-1-git-send-email-alex.shi@intel.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/tlbflush.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index b5a27bd..74a4433 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -105,10 +105,10 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
__flush_tlb();
}
-static inline void flush_tlb_mm_range(struct vm_area_struct *vma,
+static inline void flush_tlb_mm_range(struct mm_struct *mm,
unsigned long start, unsigned long end, unsigned long vmflag)
{
- if (vma->vm_mm == current->active_mm)
+ if (mm == current->active_mm)
__flush_tlb();
}
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