From mboxrd@z Thu Jan 1 00:00:00 1970 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 E883F17F394 for ; Tue, 14 May 2024 16:16:05 +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=1715703365; cv=none; b=CoEq+tLqknt8DyO2qeHPBpovVKKSKQysxbJEGQE0n6wQnV4sE6XdqT/wmLjyxEYVkl3yHRxjTs0+Q1cwZlzXDC56pYcT1bf9Y7dGEvuQOmf1eXiInqZPggFy6HKrhnIN2AY3wRW5tlm/jRKy9UyjLdjrnmycUJ75EcSJvG0VgNo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715703365; c=relaxed/simple; bh=tKNrtit3+nE6gDNwsOEgPVm9M0Mdw0ErmGEv3KHMRFs=; h=Message-ID:Date:From:To:Cc:Subject; b=msXi1aW9jWfrrBpkN1cw9UJHDEV0WkGQZK5Z6eTA81dArF5E7V6KETG7K/5PjY7xrlAGC/rep4AvQpLD5IUHovppCG3K6TASSbwIHEH7PE+9E3Yx1PPnuZAT/XQbdTB6QKQKBs/k4vRnLesICvNVlFuTQ6yvvJxARm0DMDkRPto= 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 71DA4C2BD10; Tue, 14 May 2024 16:16:05 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.97) (envelope-from ) id 1s6upK-00000003tBh-0OGs; Tue, 14 May 2024 12:16:30 -0400 Message-ID: <20240514161558.664348429@goodmis.org> User-Agent: quilt/0.68 Date: Tue, 14 May 2024 12:15:58 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton Subject: [for-next][PATCH 0/6] ring-buffer: Memmory mapping the ring buffer to user space Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: ring-buffer/for-next Head SHA1: fe832be05a8eee5f1488cbcc2c562dd82d079fd6 Steven Rostedt (Google) (1): ring-buffer: Have mmapped ring buffer keep track of missed events Vincent Donnefort (5): ring-buffer: Allocate sub-buffers with __GFP_COMP ring-buffer: Introducing ring-buffer mapping functions 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 ++++++ include/linux/ring_buffer.h | 6 + include/uapi/linux/trace_mmap.h | 48 +++ kernel/trace/ring_buffer.c | 471 ++++++++++++++++++++++++- kernel/trace/trace.c | 104 +++++- kernel/trace/trace.h | 1 + tools/testing/selftests/ring-buffer/.gitignore | 1 + tools/testing/selftests/ring-buffer/Makefile | 8 + tools/testing/selftests/ring-buffer/config | 2 + tools/testing/selftests/ring-buffer/map_test.c | 294 +++++++++++++++ 11 files changed, 1026 insertions(+), 16 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/.gitignore 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