From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 842D6C31E5B for ; Wed, 19 Jun 2019 15:07:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 555BE218A3 for ; Wed, 19 Jun 2019 15:07:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560956866; bh=+Xp4C5YytSeF+j6vAuGN6foVO6/OGHzwMed8+tMNh50=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=VggkizlMN7XWPcy9/UoP9ZHzTO47IdnuvlTsqlVC3lauWZgS33zjNDw3DjEOZiklW GTtoxBJY/Mk5KVMMagx+eeujO4Or2ozAMbgt5U1yV+LWGYNE93jqbmDpe3RP1ybUlB 4KYI+POB84pQoyVGWRUZj71LbMcikw5WmDg2eSpA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730359AbfFSPHp (ORCPT ); Wed, 19 Jun 2019 11:07:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:35676 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729740AbfFSPHo (ORCPT ); Wed, 19 Jun 2019 11:07:44 -0400 Received: from localhost.localdomain (NE2965lan1.rev.em-net.ne.jp [210.141.244.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id ADAF52189F; Wed, 19 Jun 2019 15:07:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560956863; bh=+Xp4C5YytSeF+j6vAuGN6foVO6/OGHzwMed8+tMNh50=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sth9L06tpkzlX2k+VP7sN/XqHUojnfjlIg2iMpZpjhOJwYDOQPK4pwyqGUfEPzMm2 ja8Uaav4ZE5WnH8x/8r9WxCaTl2Mf9JH2UC3GN+vXINQgsjGNncb+V9dX+NsCCUVBF 0fBJE+whahW1xkGFTqj+WuI0jluTtZpklbnEX04w= From: Masami Hiramatsu To: Steven Rostedt Cc: Masami Hiramatsu , Ingo Molnar , linux-kernel@vger.kernel.org, Tom Zanussi , Ravi Bangoria , Namhyung Kim , Arnaldo Carvalho de Melo Subject: [PATCH v2 03/12] tracing/dynevent: Pass extra arguments to match operation Date: Thu, 20 Jun 2019 00:07:39 +0900 Message-Id: <156095685930.28024.10405547027475590975.stgit@devnote2> X-Mailer: git-send-email 2.20.1 In-Reply-To: <156095682948.28024.14190188071338900568.stgit@devnote2> References: <156095682948.28024.14190188071338900568.stgit@devnote2> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pass extra arguments to match operation for checking exact match. If the event doesn't support exact match, it will be ignored. Signed-off-by: Masami Hiramatsu --- kernel/trace/trace_dynevent.c | 4 +++- kernel/trace/trace_dynevent.h | 7 ++++--- kernel/trace/trace_events_hist.c | 4 ++-- kernel/trace/trace_kprobe.c | 4 ++-- kernel/trace/trace_uprobe.c | 4 ++-- 5 files changed, 13 insertions(+), 10 deletions(-) diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c index 1cc55c50c491..a41fed46c285 100644 --- a/kernel/trace/trace_dynevent.c +++ b/kernel/trace/trace_dynevent.c @@ -47,6 +47,7 @@ int dyn_event_release(int argc, char **argv, struct dyn_event_operations *type) return -EINVAL; event++; } + argc--; argv++; p = strchr(event, '/'); if (p) { @@ -61,7 +62,8 @@ int dyn_event_release(int argc, char **argv, struct dyn_event_operations *type) for_each_dyn_event_safe(pos, n) { if (type && type != pos->ops) continue; - if (!pos->ops->match(system, event, pos)) + if (!pos->ops->match(system, event, + argc, (const char **)argv, pos)) continue; ret = pos->ops->free(pos); diff --git a/kernel/trace/trace_dynevent.h b/kernel/trace/trace_dynevent.h index 8c334064e4d6..46898138d2df 100644 --- a/kernel/trace/trace_dynevent.h +++ b/kernel/trace/trace_dynevent.h @@ -31,8 +31,9 @@ struct dyn_event; * @is_busy: Check whether given event is busy so that it can not be deleted. * Return true if it is busy, otherwides false. * @free: Delete the given event. Return 0 if success, otherwides error. - * @match: Check whether given event and system name match this event. - * Return true if it matches, otherwides false. + * @match: Check whether given event and system name match this event. The argc + * and argv is used for exact match. Return true if it matches, otherwides + * false. * * Except for @create, these methods are called under holding event_mutex. */ @@ -43,7 +44,7 @@ struct dyn_event_operations { bool (*is_busy)(struct dyn_event *ev); int (*free)(struct dyn_event *ev); bool (*match)(const char *system, const char *event, - struct dyn_event *ev); + int argc, const char **argv, struct dyn_event *ev); }; /* Register new dyn_event type -- must be called at first */ diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index ca6b0dff60c5..65e7d071ed28 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -374,7 +374,7 @@ static int synth_event_show(struct seq_file *m, struct dyn_event *ev); static int synth_event_release(struct dyn_event *ev); static bool synth_event_is_busy(struct dyn_event *ev); static bool synth_event_match(const char *system, const char *event, - struct dyn_event *ev); + int argc, const char **argv, struct dyn_event *ev); static struct dyn_event_operations synth_event_ops = { .create = synth_event_create, @@ -422,7 +422,7 @@ static bool synth_event_is_busy(struct dyn_event *ev) } static bool synth_event_match(const char *system, const char *event, - struct dyn_event *ev) + int argc, const char **argv, struct dyn_event *ev) { struct synth_event *sev = to_synth_event(ev); diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index eac6344a2e7c..e8f72431b866 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -39,7 +39,7 @@ static int trace_kprobe_show(struct seq_file *m, struct dyn_event *ev); static int trace_kprobe_release(struct dyn_event *ev); static bool trace_kprobe_is_busy(struct dyn_event *ev); static bool trace_kprobe_match(const char *system, const char *event, - struct dyn_event *ev); + int argc, const char **argv, struct dyn_event *ev); static struct dyn_event_operations trace_kprobe_ops = { .create = trace_kprobe_create, @@ -138,7 +138,7 @@ static bool trace_kprobe_is_busy(struct dyn_event *ev) } static bool trace_kprobe_match(const char *system, const char *event, - struct dyn_event *ev) + int argc, const char **argv, struct dyn_event *ev) { struct trace_kprobe *tk = to_trace_kprobe(ev); diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 5b45f0a7ab38..437dddeca8bf 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -44,7 +44,7 @@ static int trace_uprobe_show(struct seq_file *m, struct dyn_event *ev); static int trace_uprobe_release(struct dyn_event *ev); static bool trace_uprobe_is_busy(struct dyn_event *ev); static bool trace_uprobe_match(const char *system, const char *event, - struct dyn_event *ev); + int argc, const char **argv, struct dyn_event *ev); static struct dyn_event_operations trace_uprobe_ops = { .create = trace_uprobe_create, @@ -285,7 +285,7 @@ static bool trace_uprobe_is_busy(struct dyn_event *ev) } static bool trace_uprobe_match(const char *system, const char *event, - struct dyn_event *ev) + int argc, const char **argv, struct dyn_event *ev) { struct trace_uprobe *tu = to_trace_uprobe(ev);