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| author | Alex Shi <alex.shi@intel.com> | 2012-07-20 09:18:23 +0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2012-07-20 15:01:48 -0700 |
| commit | 7efa1c87963d23cc57ba40c07316d3e28cc75a3a (patch) | |
| tree | a76c03fb96d4d804bcc4093b5e8785617564a054 /arch/x86/include/asm/tlbflush.h | |
| parent | effee4b9b3b0aa5770bcd98de5f672b05b27703c (diff) | |
| download | op-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/include/asm/tlbflush.h')
| -rw-r--r-- | arch/x86/include/asm/tlbflush.h | 4 |
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(); } |
