From: Thomas Gleixner <tglx@kernel.org>
To: "Vineeth Pillai (Google)" <vineeth@bitbyteword.org>
Cc: "Vineeth Pillai (Google)" <vineeth@bitbyteword.org>,
Steven Rostedt <rostedt@goodmis.org>,
Peter Zijlstra <peterz@infradead.org>, Tejun Heo <tj@kernel.org>,
David Vernet <void@manifault.com>,
Andrea Righi <arighi@nvidia.com>,
Changwoo Min <changwoo@igalia.com>,
Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
"Yury Norov [NVIDIA]" <yury.norov@gmail.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Rik van Riel <riel@surriel.com>,
Roman Kisel <romank@linux.microsoft.com>,
Joel Fernandes <joelagnelf@nvidia.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev,
linux-trace-kernel@vger.kernel.org
Subject: Re: [PATCH v2 02/19] kernel: Use trace_call__##name() at guarded tracepoint call sites
Date: Wed, 25 Mar 2026 18:16:36 +0100 [thread overview]
Message-ID: <87mrzvesnf.ffs@tglx> (raw)
In-Reply-To: <20260323160052.17528-3-vineeth@bitbyteword.org>
On Mon, Mar 23 2026 at 12:00, Vineeth Pillai wrote:
> Replace trace_foo() with the new trace_call__foo() at sites already
> guarded by trace_foo_enabled(), avoiding a redundant
> static_branch_unlikely() re-evaluation inside the tracepoint.
> trace_call__foo() calls the tracepoint callbacks directly without
> utilizing the static branch again.
>
> Suggested-by: Steven Rostedt <rostedt@goodmis.org>
> Suggested-by: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
> Assisted-by: Claude:claude-sonnet-4-6
Acked-by: Thomas Gleixner <tglx@kernel.org>
next prev parent reply other threads:[~2026-03-25 17:16 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-23 16:00 [PATCH v2 00/19] tracepoint: Avoid double static_branch evaluation at guarded call sites Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 01/19] tracepoint: Add trace_call__##name() API Vineeth Pillai (Google)
2026-03-26 1:28 ` Masami Hiramatsu
2026-03-23 16:00 ` [PATCH v2 02/19] kernel: Use trace_call__##name() at guarded tracepoint call sites Vineeth Pillai (Google)
2026-03-23 17:42 ` Tejun Heo
2026-03-25 17:16 ` Thomas Gleixner [this message]
2026-03-26 1:29 ` Masami Hiramatsu
2026-03-23 16:00 ` [PATCH v2 03/19] io_uring: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 04/19] net: " Vineeth Pillai (Google)
2026-03-24 15:33 ` Aaron Conole
2026-03-24 15:37 ` Steven Rostedt
2026-03-23 16:00 ` [PATCH v2 05/19] accel/habanalabs: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 06/19] cpufreq: " Vineeth Pillai (Google)
2026-03-26 10:24 ` Rafael J. Wysocki
2026-03-27 9:10 ` Gautham R. Shenoy
2026-03-23 16:00 ` [PATCH v2 07/19] devfreq: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 08/19] dma-buf: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 09/19] fsi: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 10/19] drm: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 11/19] HID: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 12/19] i2c: " Vineeth Pillai (Google)
2026-03-23 16:43 ` Wolfram Sang
2026-03-23 16:00 ` [PATCH v2 13/19] spi: " Vineeth Pillai (Google)
2026-03-23 16:03 ` Mark Brown
2026-03-23 16:00 ` [PATCH v2 14/19] scsi: ufs: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 15/19] btrfs: " Vineeth Pillai (Google)
2026-03-23 17:53 ` David Sterba
2026-03-23 16:00 ` [PATCH v2 16/19] net: devlink: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 17/19] kernel: time, trace: " Vineeth Pillai (Google)
2026-03-23 16:00 ` [PATCH v2 18/19] mm: damon: " Vineeth Pillai (Google)
2026-03-24 0:25 ` SeongJae Park
2026-03-23 16:00 ` [PATCH v2 19/19] x86: msr: " Vineeth Pillai (Google)
2026-03-24 14:28 ` [PATCH v2 00/19] tracepoint: Avoid double static_branch evaluation at guarded " Steven Rostedt
2026-04-18 23:04 ` Steven Rostedt
2026-04-19 13:14 ` Vineeth Remanan Pillai
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