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[108.212.132.20]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-67bb666de5bsm2600618eaf.7.2026.03.09.23.47.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2026 23:47:41 -0700 (PDT) From: Wesley Atwell To: rostedt@goodmis.org, mhiramat@kernel.org Cc: mark.rutland@arm.com, mathieu.desnoyers@efficios.com, corbet@lwn.net, skhan@linuxfoundation.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Wesley Atwell Subject: [PATCH v3 0/2] tracing: preserve repeated boot-time parameters and drain deferred trigger frees Date: Tue, 10 Mar 2026 00:47:13 -0600 Message-Id: <20260310064715.527906-1-atwellwea@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Patch 1 updates the affected early tracing boot-parameter parsers to preserve repeated instances in the format their existing parsers already consume, and documents that repeated-parameter behavior. Patch 2 fixes deferred trigger-data cleanup so boot-deferred frees are drained even when the cleanup kthread never starts. v3: - Patch 1: use a shared trace_append_boot_param() helper - Patch 1: document repeated-parameter behavior in kernel-parameters.txt - Patch 1: reframe as an improvement and drop the Fixes tags - Patch 2: no changes v2: - Patch 1: no changes - Patch 2: restore the dropped mutex recheck comment - Patch 2: clarify the synchronous fallback drain path Wesley Atwell (2): tracing: preserve repeated boot-time tracing parameters tracing: drain deferred trigger frees if kthread startup fails .../admin-guide/kernel-parameters.txt | 18 ++++- kernel/trace/ftrace.c | 12 ++- kernel/trace/trace.c | 3 +- kernel/trace/trace.h | 29 +++++++ kernel/trace/trace_events.c | 26 +++++- kernel/trace/trace_events_trigger.c | 79 ++++++++++++++++--- kernel/trace/trace_kprobe.c | 3 +- 7 files changed, 145 insertions(+), 25 deletions(-) -- 2.34.1