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([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2dadd357efbsm1762325ad.4.2026.09.01.09.53.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Sep 2026 09:53:26 -0700 (PDT) From: Sang-Heon Jeon To: Dennis Zhou , Tejun Heo , Christoph Lameter , Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 3/4] percpu: remove unnecessary cpumask_clear() in pcpu_build_alloc_info() Date: Wed, 2 Sep 2026 01:53:03 +0900 Message-ID: <20260901165307.1026248-4-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260901165307.1026248-1-ekffu200098@gmail.com> References: <20260901165307.1026248-1-ekffu200098@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit pcpu_build_alloc_info() clears mask and unconditionally sets it to cpu_possible_mask. Nothing uses it in between, so cpumask_clear() has no effect. Remove unnecessary cpumask_clear(). No functional change. Signed-off-by: Sang-Heon Jeon --- mm/percpu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/percpu.c b/mm/percpu.c index f222b43cc90a..45f3e3fda2f9 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -2828,7 +2828,6 @@ static struct pcpu_alloc_info * __init __flatten pcpu_build_alloc_info( /* this function may be called multiple times */ memset(group_map, 0, sizeof(group_map)); memset(group_cnt, 0, sizeof(group_cnt)); - cpumask_clear(&mask); /* calculate size_sum and ensure dyn_size is enough for early alloc */ size_sum = PFN_ALIGN(static_size + reserved_size + -- 2.43.0