From 3e4b10d7a4d2a78af64f8096dc7cdb3bebd65adb Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Mon, 23 Aug 2010 18:43:51 +0900 Subject: [PATCH] napi: Convert trace_napi_poll to TRACE_EVENT This patch converts trace_napi_poll from DECLARE_EVENT to TRACE_EVENT to improve the usability of napi_poll tracepoint. -0 [001] 241302.750777: napi_poll: napi poll on napi struct f6acc480 for device eth3 -0 [000] 241302.852389: napi_poll: napi poll on napi struct f5d0d70c for device eth1 The original patch is below: http://marc.info/?l=linux-kernel&m=126021713809450&w=2 [ sanagi.koki@jp.fujitsu.com: And add a fix by Steven Rostedt: http://marc.info/?l=linux-kernel&m=126150506519173&w=2 ] Signed-off-by: Neil Horman Acked-by: David S. Miller Acked-by: Neil Horman Cc: Mathieu Desnoyers Cc: Kaneshige Kenji Cc: Izumo Taku Cc: Kosaki Motohiro Cc: Lai Jiangshan Cc: Scott Mcmillan Cc: Steven Rostedt Cc: Eric Dumazet LKML-Reference: <4C7242D7.4050009@jp.fujitsu.com> Signed-off-by: Koki Sanagi Signed-off-by: Frederic Weisbecker --- include/trace/events/napi.h | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-) diff --git a/include/trace/events/napi.h b/include/trace/events/napi.h index 188deca2f3c7..8fe1e93f531d 100644 --- a/include/trace/events/napi.h +++ b/include/trace/events/napi.h @@ -6,10 +6,31 @@ #include #include +#include + +#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)) +); + +#undef NO_DEV #endif /* _TRACE_NAPI_H_ */ -- 2.20.1