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Tue, 12 May 2026 07:50:41 -0700 (PDT) Received: from honglab.tailc96cb.ts.net ([140.123.97.73]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2baf1e35ba2sm146193705ad.50.2026.05.12.07.50.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 May 2026 07:50:41 -0700 (PDT) From: "WEI-HONG, YE" <1234567weewee457@gmail.com> To: fedorov.nikita@h-partners.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, virtualization@lists.linux.dev Subject: Re: [RFC PATCH v3 3/7] hq-spinlock: add contention detection Date: Tue, 12 May 2026 14:49:08 +0000 Message-ID: <20260512144908.610907-1-1234567weewee457@gmail.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20260415164459.2904963-4-fedorov.nikita@h-partners.com> References: <20260415164459.2904963-4-fedorov.nikita@h-partners.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260512_155044_438418_289296EA X-CRM114-Status: UNSURE ( 8.85 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, I may be missing something, but this patch adds `update_counters_qspinlock()` for remote handoff accounting. I tried commenting it out locally, and the kernel still built successfully with `CONFIG_HQSPINLOCKS=y` and `CONFIG_HQSPINLOCKS_DEBUG=y`. I also could not find a call site for it in the series, so it looks like this helper may currently be unreferenced. Is it still needed, or was the call site possibly missed in this RFC version? Cheers, Hong