@@ -6,10 +6,29 @@
#include <linux/netdevice.h>
#include <linux/tracepoint.h>
+#include <linux/ftrace.h>
+
+#define NO_DEV "(no_device)"
+
+TRACE_EVENT(napi_poll,
-DECLARE_TRACE(napi_poll,
TP_PROTO(struct napi_struct *napi),
- TP_ARGS(napi));
+
+ TP_ARGS(napi),
+
+ TP_STRUCT__entry(
+ __field( struct napi_struct *, napi)
+ __string( dev_name, napi->dev ? napi->dev->name : NO_DEV)
+ ),
+
+ TP_fast_assign(
+ __entry->napi = napi;
+ __assign_str(dev_name, napi->dev ? napi->dev->name : NO_DEV);
+ ),
+
+ TP_printk("napi poll on napi struct %p for device %s",
+ __entry->napi, __get_str(dev_name))
+);
#endif /* _TRACE_NAPI_H_ */
This patch converts trace_napi_poll from DECLARE_EVENT to TRACE_EVENT. This lets you know how long napi_poll takes. <idle>-0 [001] 241302.750777: napi_poll: napi poll on napi struct f6acc480 for device eth3 <idle>-0 [000] 241302.852389: napi_poll: napi poll on napi struct f5d0d70c for device eth1 <idle>-0 [000] 241302.852389: napi_poll: napi poll on napi struct f5d0d20c for device eth1 This is a same patch Neil Horman submitted. http://marc.info/?l=linux-kernel&m=125978157926853&w=2 Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> --- include/trace/events/napi.h | 23 +++++++++++++++++++++-- 1 files changed, 21 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html