diff --git a/[refs] b/[refs] index 734627b8c017..6582a1193ff7 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 24ba613c9d6cad315f484e658288db152f1dc447 +refs/heads/master: 25ce1dd71b8326f2542cf030f68e0e64c3d94dc1 diff --git a/trunk/arch/arm/mm/fault.c b/trunk/arch/arm/mm/fault.c index a8a7dab757eb..1e7b1ed304d8 100644 --- a/trunk/arch/arm/mm/fault.c +++ b/trunk/arch/arm/mm/fault.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -20,6 +21,29 @@ #include "fault.h" + +#ifdef CONFIG_KPROBES +static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) +{ + int ret = 0; + + if (!user_mode(regs)) { + /* kprobe_running() needs smp_processor_id() */ + preempt_disable(); + if (kprobe_running() && kprobe_fault_handler(regs, fsr)) + ret = 1; + preempt_enable(); + } + + return ret; +} +#else +static inline int notify_page_fault(struct pt_regs *regs, unsigned int fsr) +{ + return 0; +} +#endif + /* * This is useful to dump out the page tables associated with * 'addr' in mm 'mm'. @@ -222,6 +246,9 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) struct mm_struct *mm; int fault, sig, code; + if (notify_page_fault(regs, fsr)) + return 0; + tsk = current; mm = tsk->mm;