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Marliere" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marliere.net; s=2023; t=1706221691; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=wCBEPBMWeoB0j3nSR/jMBslDMArDbAfdSvio61olzTA=; b=AGnJnqfLLiG2/EahRorCHFwJDmBV6JZF7uwTBllKlPoq3BtwWe2ngomH/BSIC06j1Sejau yNYSGu5u8CH67Kc6ZWpUX2i+6JH3UC/MPxDW1Lxb63KMkUhWGBHjHM/p2jB7bkZYUnaq7w SMW9k8Aqhyz6dJBqCmm1q4qa8tiNeHmg4W5CBRCQeDpRZb5MI08yovzANxWaj5iLpemPDC idIPLyRoLP50aoFQxk8jPiuoyAsUXvR/+T+c67MQeWCHGkxPNVBkwQarVoJItTBHxJ1ngM Zkff8SydUH8PJyOjF/9pMZ7lCFG/iUzgFdWfHxX9Bq5gTeL0KvK1xlDuUNCWJg== Authentication-Results: ORIGINATING; auth=pass smtp.auth=ricardo@marliere.net smtp.mailfrom=ricardo@marliere.net To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers Cc: "Ricardo B. Marliere" , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH v3 0/3] tracing: add trace_seq_reset function Date: Thu, 25 Jan 2024 19:28:15 -0300 Message-ID: <20240125222818.7425-1-ricardo@marliere.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1789094953723327522 X-GMAIL-MSGID: 1789103138010127045 This series is a prerequisite for a later effort of making trace_seq more flexible about its buffer size. To achieve that, initializing and resetting the buffers need to be differentiated. Changes in v3: - Reordered commits so it doesn't produce a failing build in-between. - Improved changelogs. Changes in v2: - Added a WARN_ON_ONCE to __trace_seq_init to catch possible misuses. - Properly initialized trace_seq buffers. Ricardo B. Marliere (3): tracing: initialize trace_seq buffers tracing: add trace_seq_reset function tracing: convert __trace_seq_init to use WARN_ON_ONCE include/linux/trace_seq.h | 11 +++++++++++ include/trace/trace_events.h | 2 +- kernel/trace/trace.c | 24 +++++++++++++++++++----- kernel/trace/trace_output.c | 2 +- kernel/trace/trace_seq.c | 4 ++-- 5 files changed, 34 insertions(+), 9 deletions(-)