linux-kernel - Re: [PATCH v10 04/30] ring-buffer: Add non-consuming read for ring-buffer remotes

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Message-ID: <20260128192646.02cf1b28@gandalf.local.home>
Date: Wed, 28 Jan 2026 19:26:46 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Vincent Donnefort <vdonnefort@...gle.com>
Cc: mhiramat@...nel.org, mathieu.desnoyers@...icios.com,
 linux-trace-kernel@...r.kernel.org, maz@...nel.org, oliver.upton@...ux.dev,
 joey.gouly@....com, suzuki.poulose@....com, yuzenghui@...wei.com,
 kvmarm@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 jstultz@...gle.com, qperret@...gle.com, will@...nel.org,
 aneesh.kumar@...nel.org, kernel-team@...roid.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 04/30] ring-buffer: Add non-consuming read for
 ring-buffer remotes

On Mon, 26 Jan 2026 10:43:53 +0000
Vincent Donnefort <vdonnefort@...gle.com> wrote:

> Hopefully, the remote will only swap pages on the kernel instruction (via
> the swap_reader_page() callback). This means we know at what point the
> ring-buffer geometry has changed. It is therefore possible to rearrange
> the kernel view of that ring-buffer to allow non-consuming read.
> 
> Signed-off-by: Vincent Donnefort <vdonnefort@...gle.com>

Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>

-- Steve