From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH 07/20] tracing/filter: Simplify tracepoint event lookup
Date: Mon, 10 Oct 2011 09:38:59 -0400 [thread overview]
Message-ID: <20111010134140.177047478@goodmis.org> (raw)
In-Reply-To: 20111010133852.829771373@goodmis.org
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From: Jiri Olsa <jolsa@redhat.com>
We dont need to perform lookup through the ftrace_events list,
instead we can use the 'tp_event' field.
Each perf_event contains tracepoint event field 'tp_event', which
got initialized during the tracepoint event initialization.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1313072754-4620-5-git-send-email-jolsa@redhat.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/trace/trace_events_filter.c | 9 +++------
1 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 97b93f3..0948905 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -1894,17 +1894,14 @@ int ftrace_profile_set_filter(struct perf_event *event, int event_id,
int err;
struct event_filter *filter;
struct filter_parse_state *ps;
- struct ftrace_event_call *call = NULL;
+ struct ftrace_event_call *call;
mutex_lock(&event_mutex);
- list_for_each_entry(call, &ftrace_events, list) {
- if (call->event.type == event_id)
- break;
- }
+ call = event->tp_event;
err = -EINVAL;
- if (&call->list == &ftrace_events)
+ if (!call)
goto out_unlock;
err = -EEXIST;
--
1.7.6.3
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next prev parent reply other threads:[~2011-10-10 13:41 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-10 13:38 [PATCH 00/20] [GIT PULL][v3.2] tracing: queued updates Steven Rostedt
2011-10-10 13:38 ` [PATCH 01/20] tracing: Clean up tb_fmt to not give faulty compile warning Steven Rostedt
2011-10-10 13:38 ` [PATCH 02/20] Tracepoint: Dissociate from module mutex Steven Rostedt
2011-10-10 13:38 ` [PATCH 03/20] x86: jump_label: arch_jump_label_text_poke_early: add missing __init Steven Rostedt
2011-10-10 13:38 ` [PATCH 04/20] tracing/filter: Use static allocation for filter predicates Steven Rostedt
2011-10-10 13:38 ` [PATCH 05/20] tracing/filter: Separate predicate init and filter addition Steven Rostedt
2011-10-10 13:38 ` [PATCH 06/20] tracing/filter: Remove field_name from filter_pred struct Steven Rostedt
2011-10-10 13:38 ` Steven Rostedt [this message]
2011-10-10 13:39 ` [PATCH 08/20] tracing/filter: Unify predicate tree walking, change check_pred_tree Steven Rostedt
2011-10-10 13:39 ` [PATCH 09/20] tracing/filter: Change count_leafs function to use walk_pred_tree Steven Rostedt
2011-10-10 13:39 ` [PATCH 10/20] tracing/filter: Change fold_pred_tree " Steven Rostedt
2011-10-10 13:39 ` [PATCH 11/20] tracing/filter: Change fold_pred " Steven Rostedt
2011-10-10 13:39 ` [PATCH 12/20] tracing/filter: Change filter_match_preds function to use Steven Rostedt
2011-10-10 13:39 ` [PATCH 13/20] tracing/filter: Add startup tests for events filter Steven Rostedt
2011-10-10 13:39 ` [PATCH 14/20] tracing: Add preempt disable for filter self test Steven Rostedt
2011-10-10 13:39 ` [PATCH 15/20] trace: Add a new readonly entry to report total buffer size Steven Rostedt
2011-10-10 13:39 ` [PATCH 16/20] trace: Add ring buffer stats to measure rate of events Steven Rostedt
2011-10-10 13:39 ` [PATCH 17/20] tracing: Add a counter clock for those that do not trust clocks Steven Rostedt
2011-10-10 13:39 ` [PATCH 18/20] tracing: Fix preemptirqsoff tracer to not stop at preempt off Steven Rostedt
2011-10-10 13:39 ` [PATCH 19/20] tracing: Warn on output if the function tracer was found corrupted Steven Rostedt
2011-10-10 13:39 ` [PATCH 20/20] tracing: Do not allocate buffer for trace_marker Steven Rostedt
2011-10-10 13:52 ` [PATCH 00/20] [GIT PULL][v3.2] tracing: queued updates Steven Rostedt
2011-10-11 5:51 ` Ingo Molnar
2011-10-11 8:15 ` Ingo Molnar
2011-10-11 11:14 ` Steven Rostedt
2011-10-11 5:50 ` Ingo Molnar
2011-10-11 21:08 ` Valdis.Kletnieks
2011-10-12 8:07 ` Ingo Molnar
2011-10-12 14:19 ` Jeff King
2011-10-12 16:29 ` Ingo Molnar
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