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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_2 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 94ACBC433E0 for ; Tue, 9 Jun 2020 13:17:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 75ED420737 for ; Tue, 9 Jun 2020 13:17:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730096AbgFINRt (ORCPT ); Tue, 9 Jun 2020 09:17:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:36020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729585AbgFINRm (ORCPT ); Tue, 9 Jun 2020 09:17:42 -0400 Received: from oasis.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D633F20737; Tue, 9 Jun 2020 13:17:41 +0000 (UTC) Date: Tue, 9 Jun 2020 09:17:40 -0400 From: Steven Rostedt To: Linus Torvalds Cc: LKML , Ingo Molnar , Andrew Morton Subject: [GIT PULL] tracing: Updates for 5.8 Message-ID: <20200609091740.303dda01@oasis.local.home> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Tracing updates for 5.8: No new features this release. Mostly clean ups, restructuring and documentation. - Have ftrace_bug() show ftrace errors before the WARN, as the WARN will reboot the box before the error messages are printed if panic_on_warn is set. - Have traceoff_on_warn disable tracing sooner (before prints) - Write a message to the trace buffer that its being disabled when disable_trace_on_warning() is set. - Separate out synthetic events from histogram code to let it be used by other parts of the kernel. - More documentation on histogram design. - Other small fixes and clean ups. Please pull the latest trace-v5.8 tree, which can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git trace-v5.8 Tag SHA1: a9317885fb7c4418fea2588e3fbaeaafd773b106 Head SHA1: 388d8bdb87e01bcea6d0b2bf797b5f6d7b2401fb Cheng Jian (1): ftrace: show debugging information when panic_on_warn set Julia Lawall (1): tracing/probe: reverse arguments to list_add Masami Hiramatsu (1): tools/bootconfig: Add a summary of test cases and return error Mel Gorman (1): tracing: Remove obsolete PREEMPTIRQ_EVENTS kconfig option Peter Zijlstra (1): ftrace,bug: Improve traceoff_on_warn Steven Rostedt (VMware) (2): tracing/doc: Fix typos in histogram-design.rst tracing: Add a trace print when traceoff_on_warning is triggered Tom Zanussi (7): tracing: Check state.disabled in synth event trace functions tracing: Add histogram-design document tracing: Add hist_debug trace event files for histogram debugging tracing: Fix events.rst section numbering tracing: Move synthetic events to a separate file selftests/ftrace: Distinguish between hist and synthetic event checks tracing/doc: Fix ascii-art in histogram-design.rst ---- Documentation/trace/events.rst | 28 +- Documentation/trace/histogram-design.rst | 2115 +++++++++++++++++++ kernel/trace/Kconfig | 52 +- kernel/trace/Makefile | 1 + kernel/trace/ftrace.c | 8 +- kernel/trace/trace.c | 5 +- kernel/trace/trace.h | 1 + kernel/trace/trace_events.c | 4 + kernel/trace/trace_events_hist.c | 2193 +++----------------- kernel/trace/trace_events_synth.c | 1789 ++++++++++++++++ kernel/trace/trace_probe.c | 2 +- kernel/trace/trace_synth.h | 36 + lib/bug.c | 3 + tools/bootconfig/test-bootconfig.sh | 7 + .../inter-event/trigger-field-variable-support.tc | 5 + .../trigger-inter-event-combined-hist.tc | 5 + .../inter-event/trigger-multi-actions-accept.tc | 5 + .../inter-event/trigger-onmatch-action-hist.tc | 5 + .../trigger-onmatch-onmax-action-hist.tc | 5 + .../inter-event/trigger-onmax-action-hist.tc | 5 + .../inter-event/trigger-snapshot-action-hist.tc | 5 + .../inter-event/trigger-trace-action-hist.tc | 5 + 22 files changed, 4396 insertions(+), 1888 deletions(-) create mode 100644 Documentation/trace/histogram-design.rst create mode 100644 kernel/trace/trace_events_synth.c create mode 100644 kernel/trace/trace_synth.h ---------------------------