diff options
Diffstat (limited to 'arch/powerpc/mm/fault.c')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 54f4fb994e9..2fb3d0ce222 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -31,6 +31,7 @@ #include <linux/kdebug.h> #include <linux/perf_event.h> #include <linux/magic.h> +#include <trace/fault.h> #include <asm/firmware.h> #include <asm/page.h> @@ -43,6 +44,9 @@ #include <asm/siginfo.h> #include <mm/mmu_decl.h> +DEFINE_TRACE(page_fault_entry); +DEFINE_TRACE(page_fault_exit); + #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs) { @@ -309,7 +313,9 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ + trace_page_fault_entry(regs, regs->trap, mm, vma, address, is_write); ret = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0); + trace_page_fault_exit(ret); if (unlikely(ret & VM_FAULT_ERROR)) { if (ret & VM_FAULT_OOM) goto out_of_memory; |