diff options
| -rw-r--r-- | include/trace/events/rcu.h | 28 | ||||
| -rw-r--r-- | kernel/rcutiny.c | 8 | ||||
| -rw-r--r-- | kernel/rcutree.c | 8 |
3 files changed, 26 insertions, 18 deletions
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h index ab458eb689f..508824e5a77 100644 --- a/include/trace/events/rcu.h +++ b/include/trace/events/rcu.h @@ -33,27 +33,31 @@ TRACE_EVENT(rcu_utilization, /* * Tracepoint for marking the beginning rcu_do_batch, performed to start - * RCU callback invocation. The first argument is the total number of - * callbacks (including those that are not yet ready to be invoked), - * and the second argument is the current RCU-callback batch limit. + * RCU callback invocation. The first argument is the RCU flavor, + * the second is the total number of callbacks (including those that + * are not yet ready to be invoked), and the third argument is the + * current RCU-callback batch limit. */ TRACE_EVENT(rcu_batch_start, - TP_PROTO(long qlen, int blimit), + TP_PROTO(char *rcuname, long qlen, int blimit), - TP_ARGS(qlen, blimit), + TP_ARGS(rcuname, qlen, blimit), TP_STRUCT__entry( + __field(char *, rcuname) __field(long, qlen) __field(int, blimit) ), TP_fast_assign( + __entry->rcuname = rcuname; __entry->qlen = qlen; __entry->blimit = blimit; ), - TP_printk("CBs=%ld bl=%d", __entry->qlen, __entry->blimit) + TP_printk("%s CBs=%ld bl=%d", + __entry->rcuname, __entry->qlen, __entry->blimit) ); /* @@ -106,23 +110,27 @@ TRACE_EVENT(rcu_invoke_kfree_callback, /* * Tracepoint for exiting rcu_do_batch after RCU callbacks have been - * invoked. The first argument is the number of callbacks actually invoked. + * invoked. The first argument is the name of the RCU flavor and + * the second argument is number of callbacks actually invoked. */ TRACE_EVENT(rcu_batch_end, - TP_PROTO(int callbacks_invoked), + TP_PROTO(char *rcuname, int callbacks_invoked), - TP_ARGS(callbacks_invoked), + TP_ARGS(rcuname, callbacks_invoked), TP_STRUCT__entry( + __field(char *, rcuname) __field(int, callbacks_invoked) ), TP_fast_assign( + __entry->rcuname = rcuname; __entry->callbacks_invoked = callbacks_invoked; ), - TP_printk("CBs-invoked=%d", __entry->callbacks_invoked) + TP_printk("%s CBs-invoked=%d", + __entry->rcuname, __entry->callbacks_invoked) ); #endif /* _TRACE_RCU_H */ diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index 0d28974b78f..1c37bdd464f 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -168,14 +168,14 @@ static void rcu_process_callbacks(struct rcu_ctrlblk *rcp) /* If no RCU callbacks ready to invoke, just return. */ if (&rcp->rcucblist == rcp->donetail) { - RCU_TRACE(trace_rcu_batch_start(0, -1)); - RCU_TRACE(trace_rcu_batch_end(0)); + RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, -1)); + RCU_TRACE(trace_rcu_batch_end(rcp->name, 0)); return; } /* Move the ready-to-invoke callbacks to a local list. */ local_irq_save(flags); - RCU_TRACE(trace_rcu_batch_start(0, -1)); + RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, -1)); list = rcp->rcucblist; rcp->rcucblist = *rcp->donetail; *rcp->donetail = NULL; @@ -197,7 +197,7 @@ static void rcu_process_callbacks(struct rcu_ctrlblk *rcp) RCU_TRACE(cb_count++); } RCU_TRACE(rcu_trace_sub_qlen(rcp, cb_count)); - RCU_TRACE(trace_rcu_batch_end(cb_count)); + RCU_TRACE(trace_rcu_batch_end(rcp->name, cb_count)); } /* diff --git a/kernel/rcutree.c b/kernel/rcutree.c index b953e2c72e2..eb6e731088a 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1199,8 +1199,8 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) /* If no callbacks are ready, just return.*/ if (!cpu_has_callbacks_ready_to_invoke(rdp)) { - trace_rcu_batch_start(0, 0); - trace_rcu_batch_end(0); + trace_rcu_batch_start(rsp->name, 0, 0); + trace_rcu_batch_end(rsp->name, 0); return; } @@ -1210,7 +1210,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) */ local_irq_save(flags); bl = rdp->blimit; - trace_rcu_batch_start(rdp->qlen, bl); + trace_rcu_batch_start(rsp->name, rdp->qlen, bl); list = rdp->nxtlist; rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL]; *rdp->nxttail[RCU_DONE_TAIL] = NULL; @@ -1233,7 +1233,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) } local_irq_save(flags); - trace_rcu_batch_end(count); + trace_rcu_batch_end(rsp->name, count); /* Update count, and requeue any remaining callbacks. */ rdp->qlen -= count; |