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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-46e95f3d71fsm11505686f8f.12.2026.06.26.14.24.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2026 14:24:12 -0700 (PDT) From: David Laight To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, =?UTF-8?q?Michal=20Koutn=C3=BD?= Cc: David Laight Subject: [PATCH rfc 0/2] Improvements to ftrace comm[] handling Date: Fri, 26 Jun 2026 22:23:54 +0100 Message-Id: <20260626212356.64150-1-david.laight.linux@gmail.com> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit RFC because they are untested and I want to send them before going on holiday for 2 weeks (should still have email access). The first patch avoids a lot of 'potentially unsized' string functions by embedding the char[] use to hold task->comm[] in a structure. The second adjsuts the data structure used to cache the task names in the thread switch code. David Laight (2): tracing: Embed 'char comm[16]' in a structure tracing: Keep pid and comm[] in the same structure kernel/trace/blktrace.c | 28 +++---- kernel/trace/trace.c | 3 +- kernel/trace/trace.h | 9 ++- kernel/trace/trace_events_filter.c | 2 +- kernel/trace/trace_events_hist.c | 26 +++--- kernel/trace/trace_functions_graph.c | 10 +-- kernel/trace/trace_output.c | 24 +++--- kernel/trace/trace_sched_switch.c | 113 ++++++++++++--------------- 8 files changed, 101 insertions(+), 114 deletions(-) -- 2.39.5