new file mode 100644
@@ -0,0 +1,63 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM gup
+
+#if !defined(_TRACE_GUP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_GUP_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(gup_fixup_user_fault,
+
+ TP_PROTO(unsigned long address),
+
+ TP_ARGS(address),
+
+ TP_STRUCT__entry(
+ __field( unsigned long, address )
+ ),
+
+ TP_fast_assign(
+ __entry->address = address;
+ ),
+
+ TP_printk("address=%lx", __entry->address)
+);
+
+DECLARE_EVENT_CLASS(gup,
+
+ TP_PROTO(unsigned long start, unsigned int nr_pages),
+
+ TP_ARGS(start, nr_pages),
+
+ TP_STRUCT__entry(
+ __field( unsigned long, start )
+ __field( unsigned int, nr_pages )
+ ),
+
+ TP_fast_assign(
+ __entry->start = start;
+ __entry->nr_pages = nr_pages;
+ ),
+
+ TP_printk("start=%lx nr_pages=%d", __entry->start, __entry->nr_pages)
+);
+
+DEFINE_EVENT(gup, gup_get_user_pages,
+
+ TP_PROTO(unsigned long start, unsigned int nr_pages),
+
+ TP_ARGS(start, nr_pages)
+);
+
+DEFINE_EVENT(gup, gup_get_user_pages_fast,
+
+ TP_PROTO(unsigned long start, unsigned int nr_pages),
+
+ TP_ARGS(start, nr_pages)
+);
+
+#endif /* _TRACE_GUP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
page-faults events record the invoke to handle_mm_fault, but the invoke may come from do_page_fault or gup. In some use cases, the finer event count mey be needed, so add trace events support for: __get_user_pages __get_user_pages_fast fixup_user_fault Signed-off-by: Yang Shi <yang.shi@linaro.org> --- include/trace/events/gup.h | 63 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 include/trace/events/gup.h -- 2.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/