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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01297C4167B for ; Tue, 5 Dec 2023 16:18:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232068AbjLEQRx (ORCPT ); Tue, 5 Dec 2023 11:17:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232018AbjLEQRu (ORCPT ); Tue, 5 Dec 2023 11:17:50 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDE93129; Tue, 5 Dec 2023 08:17:55 -0800 (PST) Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id E3E6621AA8; Tue, 5 Dec 2023 16:17:53 +0000 (UTC) Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 9FEEF136CF; Tue, 5 Dec 2023 16:17:53 +0000 (UTC) Received: from dovecot-director2.suse.de ([10.150.64.162]) by imap1.dmz-prg2.suse.org with ESMTPSA id +1NJJTFNb2WtdwAAD6G6ig (envelope-from ); Tue, 05 Dec 2023 16:17:53 +0000 From: Petr Pavlu To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com Cc: zhengyejian1@huawei.com, linux-trace-kernel@vger.kernel.org, linux-kernel@vger.kernel.org, Petr Pavlu Subject: [PATCH v2 0/3] tracing: Simplify and fix "buffered event" synchronization Date: Tue, 5 Dec 2023 17:17:33 +0100 Message-Id: <20231205161736.19663-1-petr.pavlu@suse.com> X-Mailer: git-send-email 2.35.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spamd-Result: default: False [15.00 / 50.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_FAIL(1.00)[-all]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_MISSING_CHARSET(2.50)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; BROKEN_CONTENT_TYPE(1.50)[]; DMARC_POLICY_QUARANTINE(1.50)[suse.com : No valid SPF, No valid DKIM,quarantine]; RCVD_COUNT_THREE(0.00)[3]; MX_GOOD(-0.01)[]; NEURAL_HAM_SHORT(-0.18)[-0.910]; RCPT_COUNT_SEVEN(0.00)[7]; MID_CONTAINS_FROM(1.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[] X-Spamd-Bar: +++++++++++++++ X-Rspamd-Server: rspamd1 Authentication-Results: smtp-out1.suse.de; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=suse.com (policy=quarantine); spf=fail (smtp-out1.suse.de: domain of petr.pavlu@suse.com does not designate 2a07:de40:b281:104:10:150:64:97 as permitted sender) smtp.mailfrom=petr.pavlu@suse.com X-Rspamd-Queue-Id: E3E6621AA8 X-Spam: Yes Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix a few problems related to the maintenance of buffered events. Changes since v1 [1]: * Address found problems individually. The approach in v1 tried to simplify the buffered event synchronization but had performance issues. [1] https://lore.kernel.org/linux-trace-kernel/20231127151248.7232-1-petr.pavlu@suse.com/ Petr Pavlu (3): tracing: Fix incomplete locking when disabling buffered events tracing: Fix a warning when allocating buffered events fails tracing: Fix a possible race when disabling buffered events kernel/trace/trace.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) base-commit: bee0e7762ad2c6025b9f5245c040fcc36ef2bde8 -- 2.35.3