From ab1e23d27640b08b12d68f55add7a5314c6bc14b Mon Sep 17 00:00:00 2001
From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Wed, 16 Mar 2011 19:04:58 -0400
Subject: lttng-instrumentation/lttng-instrumentation-mips

LTTng - MIPS instrumentation

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
---
 arch/mips/mm/fault.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch/mips/mm/fault.c')

diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 137ee76a004..1a5bd7b9018 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/kprobes.h>
 #include <linux/perf_event.h>
+#include <trace/fault.h>
 
 #include <asm/branch.h>
 #include <asm/mmu_context.h>
@@ -28,6 +29,9 @@
 #include <asm/highmem.h>		/* For VMALLOC_END */
 #include <linux/kdebug.h>
 
+DEFINE_TRACE(page_fault_entry);
+DEFINE_TRACE(page_fault_exit);
+
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
@@ -144,7 +148,10 @@ good_area:
 	 * make sure we exit gracefully rather than endlessly redo
 	 * the fault.
 	 */
+	trace_page_fault_entry(regs, CAUSE_EXCCODE(regs->cp0_cause), mm, vma,
+			       address, write);
 	fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
+	trace_page_fault_exit(fault);
 	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		if (fault & VM_FAULT_OOM)
-- 
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