diff options
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/mm/fault.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index de91e17daf6f..316c53de47bd 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -314,11 +314,13 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, unsigned long flags; siginfo_t info; + tsk = current; + mm = tsk->mm; + prefetchw(&mm->mmap_sem); + /* get the address */ __asm__("movq %%cr2,%0":"=r" (address)); - tsk = current; - mm = tsk->mm; info.si_code = SEGV_MAPERR; |