From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-112.freemail.mail.aliyun.com (out30-112.freemail.mail.aliyun.com [115.124.30.112]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 624FDD27D for ; Tue, 2 Jan 2024 06:50:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R591e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046060;MF=liusong@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0VznCwIF_1704178198; Received: from localhost(mailfrom:liusong@linux.alibaba.com fp:SMTPD_---0VznCwIF_1704178198) by smtp.aliyun-inc.com; Tue, 02 Jan 2024 14:50:22 +0800 From: Liu Song To: mingo@redhat.com, peterz@infradead.org Cc: linux-kernel@vger.kernel.org, liusong@linux.alibaba.com Subject: [PATCH] sched/eevdf: fix typo in the comment of place_entity Date: Tue, 2 Jan 2024 14:49:58 +0800 Message-Id: <20240102064958.100300-1-liusong@linux.alibaba.com> X-Mailer: git-send-email 2.19.1.6.gb485710b Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit In the derivation of the formula, 'l' should be 'vl_i', fix it. Signed-off-by: Liu Song --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index bcd0f230e21f..b3dc606ce565 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5177,7 +5177,7 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags) * V' = (\Sum w_j*v_j + w_i*v_i) / (W + w_i) * = (W*V + w_i*(V - vl_i)) / (W + w_i) * = (W*V + w_i*V - w_i*vl_i) / (W + w_i) - * = (V*(W + w_i) - w_i*l) / (W + w_i) + * = (V*(W + w_i) - w_i*vl_i) / (W + w_i) * = V - w_i*vl_i / (W + w_i) * * And the actual lag after adding an entity with vl_i is: -- 2.19.1.6.gb485710b