From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B2A1C46CA0 for ; Wed, 6 Dec 2023 06:35:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1376791AbjLFGeV (ORCPT ); Wed, 6 Dec 2023 01:34:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231374AbjLFGeT (ORCPT ); Wed, 6 Dec 2023 01:34:19 -0500 Received: from out-183.mta0.migadu.com (out-183.mta0.migadu.com [IPv6:2001:41d0:1004:224b::b7]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E72B11B2 for ; Tue, 5 Dec 2023 22:34:24 -0800 (PST) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1701844461; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=Z+0l8mPsxCbaNspPdfHc0kRxENqvlPASHVuR+idjaYg=; b=RTKmWoeHMIk6yFrnjQq47mI/+cQyHVlQIbF3SYOiLIx80M1OT/woOCkKluhDwxwqgIhfdw N/q3R5umJRjL3g8wnFyK9Lq0kSGK96opxbRk8jS9QmcRlr88sXW4+aV540+W72d4b79V/N IoVUUxPlcxeMZFRJpAuh06yL0wSVbLI= From: Yajun Deng To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com Cc: linux-kernel@vger.kernel.org, Yajun Deng Subject: [PATCH v2 0/2] sched: Return NULL when entity isn't a task Date: Wed, 6 Dec 2023 14:33:58 +0800 Message-Id: <20231206063400.3206346-1-yajun.deng@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the entity isn't a task, return the task struct is meaningless. Return NULL when entity isn't a task that makes the code more concise. v1 -> v2: fix 'struct rt_rq' no member named 'highest_prio'. Yajun Deng (2): sched/fair: Return NULL when entity isn't a task in task_of() sched/rt: Return NULL when rt entity isn't a task in rt_task_of() kernel/sched/fair.c | 50 ++++++++++++++++++------------------ kernel/sched/rt.c | 60 +++++++++++++------------------------------- kernel/sched/sched.h | 4 ++- 3 files changed, 44 insertions(+), 70 deletions(-) -- 2.25.1