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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id x20-20020a170906b09400b00a3e8672b98fsi2886978ejy.140.2024.02.21.06.09.13 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 06:09:13 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-74856-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; arc=pass (i=1); spf=pass (google.com: domain of linux-kernel+bounces-74856-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-74856-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 2E8081F23511 for ; Wed, 21 Feb 2024 14:09:13 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DAEC98003B; Wed, 21 Feb 2024 14:06:41 +0000 (UTC) Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4C5577BB16 for ; Wed, 21 Feb 2024 14:06:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708524400; cv=none; b=TAR1Rg1cFtVD1U91hxtQIgtjz0RsS7WZ1ERvv36HbCeXK8fDYY5iilwyGbzqThX3Z11tmj1+O+FqMpU0Mekj8Sz6FIsZxhy75RKrvupUpfc+wlfNI8gzKcftEQGck2wqoOgk6YgPMS/AwwyzA9xTRhnWkQKZM/RUzrLxxrT3EYo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708524400; c=relaxed/simple; bh=gtE6yciW706PpSRtyfkNsywud2GHgMWnZUBSjUtZ27I=; h=Message-ID:Date:From:To:Cc:Subject; b=D1NgHTZCLv22k3HA3E9d+KKw9xrK83mOiFYqP3RVY9NY61vx4c6Zynr4VwxlfLrxS/L49W0OPjuIbNoF/KdOltMMtK2ocGh9sUisDwRfFRiF6thTNh5nFovF77csrKcHLEUC+PIB/tH3gcSOhwMMXKF33vLzsiC/gIfLdaMS3Ag= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id DCA83C43390; Wed, 21 Feb 2024 14:06:39 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.97) (envelope-from ) id 1rcnGu-00000002i6u-00yF; Wed, 21 Feb 2024 09:08:28 -0500 Message-ID: <20240221140756.797572998@goodmis.org> User-Agent: quilt/0.67 Date: Wed, 21 Feb 2024 09:07:56 -0500 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton Subject: [for-next][PATCH 00/11] tracing: Updates for v6.9 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791517842382984858 X-GMAIL-MSGID: 1791517842382984858 Steven Rostedt (Google) (5): eventfs: Add WARN_ON_ONCE() to checks in eventfs_root_lookup() eventfs: Create eventfs_root_inode to store dentry tracing: Have saved_cmdlines arrays all in one allocation tracing: Move open coded processing of tgid_map into helper function tracing: Move saved_cmdline code into trace_sched_switch.c Vincent Donnefort (6): ring-buffer: Zero ring-buffer sub-buffers ring-buffer: Introducing ring-buffer mapping functions tracing: Add snapshot refcount tracing: Allow user-space mapping of the ring-buffer Documentation: tracing: Add ring-buffer mapping ring-buffer/selftest: Add ring-buffer mapping test ---- Documentation/trace/index.rst | 1 + Documentation/trace/ring-buffer-map.rst | 106 ++++ fs/tracefs/event_inode.c | 70 ++- fs/tracefs/internal.h | 2 - include/linux/ring_buffer.h | 7 + include/uapi/linux/trace_mmap.h | 48 ++ kernel/trace/ring_buffer.c | 385 ++++++++++++- kernel/trace/trace.c | 743 +++++++------------------ kernel/trace/trace.h | 19 +- kernel/trace/trace_events_trigger.c | 58 +- kernel/trace/trace_sched_switch.c | 515 +++++++++++++++++ tools/testing/selftests/ring-buffer/Makefile | 8 + tools/testing/selftests/ring-buffer/config | 2 + tools/testing/selftests/ring-buffer/map_test.c | 273 +++++++++ 14 files changed, 1671 insertions(+), 566 deletions(-) create mode 100644 Documentation/trace/ring-buffer-map.rst create mode 100644 include/uapi/linux/trace_mmap.h create mode 100644 tools/testing/selftests/ring-buffer/Makefile create mode 100644 tools/testing/selftests/ring-buffer/config create mode 100644 tools/testing/selftests/ring-buffer/map_test.c