From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0AFCE329E52; Tue, 11 Nov 2025 19:18:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762888710; cv=none; b=alib1XCv4BoVqC9LNOBNY8UivZvgX2qNML128IWhbyVPJM04x6b52MxWAzh4SooZFUsWFJj3ljRnTb5yTWkzjHKSN0b3Zr4V65tBUj6ABqHWTIQ1vo1dzlQ5BjvjEBCZJcXFB1vxa4eBg2X+AfkE6XPeCouMzwtVeM/QugLzFdw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762888710; c=relaxed/simple; bh=2EXblq1llrlWeUX08OpMOsi73aaJEAJG0anr8l6rapk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=n1XDFyrl4l2Gn9xb6UA+WmW2iVcXdQN29DLXQdpK6ihqj3+KjJ4dq8tCBA/rBRtcn06Jud0LJOG8c0Ra4waPvWauTW+7/X/+AWcNFq+JG18QhiJUoYbOBWnaBNz9T7foMgOpSRKPbhyABpzOzXz1+aOvW6Dar91PVk+fSBZAEBY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tge1wlDZ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tge1wlDZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73ADEC19423; Tue, 11 Nov 2025 19:18:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762888709; bh=2EXblq1llrlWeUX08OpMOsi73aaJEAJG0anr8l6rapk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tge1wlDZbPFRwIRsbXfvAHe3oF//CK5PXGw9MC4yhKyh2KhqKdQehtf0/2RWLJ0Td Un8KDBW6F0jZoFuN1fBbj1h6VxtAMYQ+S6mcVm4zI534EY5Ct4GbxOdSpG3acQdETa VRcvOrmu0ChzS2x3ud5BGikNj/DZh+svHNEoKqJtgDWMjlh2DzkoV+4rrDM0n29CBt 1ykm2ZlUDkOwZuCOTVxzSaMgGhz4XvxDFbX89qmGGPEUMGnmx54EC7eVethdQdmejN MDlLXH0uvSradV55pm0wh9RiZRT4w0hU0dmqs3mXBcECtGoZrFuFT78xEP3Kq/3PyD rUQ0R1l0pEq5w== From: Tejun Heo To: David Vernet , Andrea Righi , Changwoo Min Cc: Dan Schatzberg , Emil Tsalapatis , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org, Tejun Heo , Emil Tsalapatis , Andrea Righi Subject: [PATCH 11/13] sched_ext: Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR Date: Tue, 11 Nov 2025 09:18:14 -1000 Message-ID: <20251111191816.862797-12-tj@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251111191816.862797-1-tj@kernel.org> References: <20251111191816.862797-1-tj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR macro in preparation for additional users. Reviewed-by: Emil Tsalapatis Cc: Dan Schatzberg Acked-by: Andrea Righi Signed-off-by: Tejun Heo --- include/linux/sched/ext.h | 7 +++++++ kernel/sched/ext.c | 5 ++--- 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/include/linux/sched/ext.h b/include/linux/sched/ext.h index d6c152475f5b..70ee5c28a74d 100644 --- a/include/linux/sched/ext.h +++ b/include/linux/sched/ext.h @@ -149,6 +149,13 @@ struct scx_dsq_list_node { u32 priv; /* can be used by iter cursor */ }; +#define INIT_DSQ_LIST_CURSOR(__node, __flags, __priv) \ + (struct scx_dsq_list_node) { \ + .node = LIST_HEAD_INIT((__node).node), \ + .flags = SCX_DSQ_LNODE_ITER_CURSOR | (__flags), \ + .priv = (__priv), \ + } + /* * The following is embedded in task_struct and contains all fields necessary * for a task to be scheduled by SCX. diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index b5c87a03f112..56946aceeb28 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -6253,9 +6253,8 @@ __bpf_kfunc int bpf_iter_scx_dsq_new(struct bpf_iter_scx_dsq *it, u64 dsq_id, if (!kit->dsq) return -ENOENT; - INIT_LIST_HEAD(&kit->cursor.node); - kit->cursor.flags = SCX_DSQ_LNODE_ITER_CURSOR | flags; - kit->cursor.priv = READ_ONCE(kit->dsq->seq); + kit->cursor = INIT_DSQ_LIST_CURSOR(kit->cursor, flags, + READ_ONCE(kit->dsq->seq)); return 0; } -- 2.51.2