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Thu, 14 May 2026 12:57:18 -0700 (PDT) Date: Thu, 14 May 2026 21:57:17 +0200 From: Louis Sautier To: Guenter Roeck Cc: sashiko-reviews@lists.linux.dev, linux-hwmon@vger.kernel.org Subject: Re: [PATCH 2/2] scsi: mpt3sas: add hwmon support Message-ID: References: <20260512214703.655633-3-sautier.louis@gmail.com> <20260514010209.5C3ABC19425@smtp.kernel.org> <106e2981-35a1-4559-ae20-2026c224f590@gmail.com> <388bb990-3df0-4eb4-983d-59c502397b8c@roeck-us.net> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <388bb990-3df0-4eb4-983d-59c502397b8c@roeck-us.net> On Wed, 13 May 2026 22:17:26 -0700, Guenter Roeck wrote: > If you use a recent kernel, the hwmon subsystem serializes sysfs accesses, > so hammering it from multiple threads should not substantially increase > the back-end load. If you have 16 readers, 15 of them will wait for the > hwmon subsystem lock. All lock contention will happen in the hwmon core. Right, I wasn't aware of this mechanism. So the amplification path the bot worried about doesn't actually exist?