From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH 07/21] tracing/filter: Simplify tracepoint event lookup
Date: Thu, 22 Sep 2011 18:09:42 -0400 [thread overview]
Message-ID: <20110922221026.663865810@goodmis.org> (raw)
In-Reply-To: 20110922220935.537134016@goodmis.org
[-- Attachment #1: 0007-tracing-filter-Simplify-tracepoint-event-lookup.patch --]
[-- Type: text/plain, Size: 1278 bytes --]
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;
--
1.7.5.4
next prev parent reply other threads:[~2011-09-22 22:10 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-22 22:09 [PATCH 00/21] [GIT PULL][v3.2] tracing: queued up stuff waiting for k.org to come back on line Steven Rostedt
2011-09-22 22:09 ` [PATCH 01/21] tracing: Clean up tb_fmt to not give faulty compile warning Steven Rostedt
2011-09-22 22:09 ` [PATCH 02/21] Tracepoint: Dissociate from module mutex Steven Rostedt
2011-09-22 22:09 ` [PATCH 03/21] x86: jump_label: arch_jump_label_text_poke_early: add missing __init Steven Rostedt
2011-09-22 22:09 ` [PATCH 04/21] tracing/filter: Use static allocation for filter predicates Steven Rostedt
2011-09-22 22:09 ` [PATCH 05/21] tracing/filter: Separate predicate init and filter addition Steven Rostedt
2011-09-22 22:09 ` [PATCH 06/21] tracing/filter: Remove field_name from filter_pred struct Steven Rostedt
2011-09-22 22:09 ` Steven Rostedt [this message]
2011-09-22 22:09 ` [PATCH 08/21] tracing/filter: Unify predicate tree walking, change check_pred_tree Steven Rostedt
2011-09-22 22:09 ` [PATCH 09/21] tracing/filter: Change count_leafs function to use walk_pred_tree Steven Rostedt
2011-09-22 22:09 ` [PATCH 10/21] tracing/filter: Change fold_pred_tree " Steven Rostedt
2011-09-22 22:09 ` [PATCH 11/21] tracing/filter: Change fold_pred " Steven Rostedt
2011-09-22 22:09 ` [PATCH 12/21] tracing/filter: Change filter_match_preds function to use Steven Rostedt
2011-09-22 22:09 ` [PATCH 13/21] tracing/filter: Add startup tests for events filter Steven Rostedt
2011-09-22 22:09 ` [PATCH 14/21] tracing: Add preempt disable for filter self test Steven Rostedt
2011-09-22 22:09 ` [PATCH 15/21] trace: Add a new readonly entry to report total buffer size Steven Rostedt
2011-09-22 22:09 ` [PATCH 16/21] trace: Add ring buffer stats to measure rate of events Steven Rostedt
2011-09-22 22:09 ` [PATCH 17/21] tracing: Add a counter clock for those that do not trust clocks Steven Rostedt
2011-09-22 22:09 ` [PATCH 18/21] tracing: Fix preemptirqsoff tracer to not stop at preempt off Steven Rostedt
2011-09-22 22:09 ` [PATCH 19/21] tracing: Account for preempt off in preempt_schedule() Steven Rostedt
2011-09-23 11:00 ` Peter Zijlstra
2011-09-23 11:19 ` Steven Rostedt
2011-09-23 11:22 ` Peter Zijlstra
2011-09-23 12:24 ` Steven Rostedt
2011-09-23 14:00 ` Peter Zijlstra
2011-09-23 14:07 ` Peter Zijlstra
2011-09-23 13:24 ` Peter Zijlstra
2011-09-22 22:09 ` [PATCH 20/21] tracing: Do not allocate buffer for trace_marker Steven Rostedt
2011-09-22 22:09 ` [PATCH 21/21] tracing: Add optional percpu buffers for trace_printk() Steven Rostedt
2011-09-23 11:02 ` Peter Zijlstra
2011-09-23 11:07 ` Peter Zijlstra
2011-09-23 11:16 ` Steven Rostedt
2011-09-23 11:28 ` Peter Zijlstra
2011-09-23 11:39 ` Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110922221026.663865810@goodmis.org \
--to=rostedt@goodmis.org \
--cc=akpm@linux-foundation.org \
--cc=fweisbec@gmail.com \
--cc=jolsa@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox