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 CC66332E730; Mon, 10 Nov 2025 20:56:50 +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=1762808210; cv=none; b=GWDQa5LsmNa/RWVtRA5H1yqPTiyLJYQRiw73TVU9maGFJPjsuCmOeyXImU5TSalOd8qpSJAk5nfaSbb9ST/dXhIr9AKLN9zE8S4Fr2hNkF+P0S8u+p41O8YZj+bhBprKZ1FDn7C74cLPFdcbO63qf7q+b1+5g2zl7XM8r8QZXcw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762808210; c=relaxed/simple; bh=CO3Q4VfDcEwb5cYRvfkaUl9hA+CEb50dhXsFbgpMVWs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=f6gFBRAi3xNj8FGx7ZaJvdO3MsHaZdA8cUJPtpNsdO/hndPK81fXGRfvKpvmhvqqs6UFhbGIK7YlwlXKCM2lED8E+9cuHWn57Fmfs84x9g0tn+HZhdKakeYQp/cip6EfxLFX4uRcVsnVORhk09WziiiWCvk880QMO4Y63X8e/T4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NAJ6kcaY; 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="NAJ6kcaY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0001FC19424; Mon, 10 Nov 2025 20:56:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762808210; bh=CO3Q4VfDcEwb5cYRvfkaUl9hA+CEb50dhXsFbgpMVWs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NAJ6kcaY2WRpwSgLpsE8xj3m64bYBeHbs5PoFfzOhZDSVDXSQWFHKrhZ+Kx6xsLkU 6drlMu2N3JbFCcba3J5omNHj4cH8qCR7UtwWr2ao5ZhB61IQIhoqSD0QBSt8Ptg+BL YNqyKY82uTXiDcl32VgHPSNRMmaojCNEpyrfZgKiFJk4hUXF6d8YrBscXLZSZ4CoeW 3NuIOejRsK4/DfIi/BIPkrh6z6iqm60EA9zbJZq7yMEs2IMrbjT/4rWMTpkZA1D1Kq yU6Vfnw3TObjlIJgxSnKBjZe5QuQPccCE/LQldRYzTBPQH9dYwvEu2Jo5N1EnoN1X3 FHPU1rOPQU5zg== 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 , Andrea Righi Subject: [PATCH v2 12/14] sched_ext: Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR Date: Mon, 10 Nov 2025 10:56:34 -1000 Message-ID: <20251110205636.405592-13-tj@kernel.org> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251110205636.405592-1-tj@kernel.org> References: <20251110205636.405592-1-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. Cc: Dan Schatzberg Cc: Emil Tsalapatis 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 4b501ad7a3fc..3f6bf2875431 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 d16525abf9e0..82f0d2202b99 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -6249,9 +6249,8 @@ __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