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 0FE4A26B098; Sat, 20 Sep 2025 00:59:51 +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=1758329992; cv=none; b=tgECMqeqfyaSv6mBGInWTOi/euWRwwXmqXSaqvCYcpRy5+43qMIXRtxtdXDE4UB/VusZc8wbjLo8ONc0S5h66pEBTnsPVHLU6WKharo+QVFVYe68UYnua8MX3dXFT4eUM2gbKsQuvqJnJ6wu5IDO0T+GdBYJNevOGllNf60+N/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758329992; c=relaxed/simple; bh=xzfj4LPy2mT0HW1TSm0enbz44zGQS+PqKNS2MD/8XCM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kyDovQUaKYNamiJNmetcU4DVf/21m5jEmVNFt2wrQF+36MMWYm7q7F6UCqjFRNnzCzluWvEzvjHLHbbXv2JGoy0vsSiVjasIvvbIH8gVKl+dRe/ZV3DT+gX/UqBGa+N12jTvVeCcmm6mCeX1Ng3mbUiAkAHVIg98DWxZkMNBmfc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PT82JATG; 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="PT82JATG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A02DDC4CEF0; Sat, 20 Sep 2025 00:59:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758329991; bh=xzfj4LPy2mT0HW1TSm0enbz44zGQS+PqKNS2MD/8XCM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PT82JATGmTpakqIcm+ogWCHqa/FHNze0znv4FiLdbjw46eiR+aVhWmLBMjjsJndjt 6AJ8GnHFA4FdubGQoaMQL8LSCeItxxnZ13MrXcQ3HJFDTTPhQmI0fojQuJppji2Ctw PEsFqMyzF3BZgnwyX+RKTCn3BewAlfVy0SDs1r5fasLk8STOF2dHMGemkWir2AShfD 1jcTFato2ZzXL89DvMPIOYAiwrg4l/8OZnrnRhPXs1Pi9JWXka5CaoP/3TdNZFpWGb ddosTM0qRzfJdzMrhiZ0qC+8webM/AhoPl/1WXmhGXVpvOpH95G6epytggpjEbbDRt TW+sMLYAKevRA== From: Tejun Heo To: void@manifault.com, arighi@nvidia.com, multics69@gmail.com Cc: linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev, memxor@gmail.com, bpf@vger.kernel.org, Tejun Heo , Peter Zijlstra Subject: [PATCH 17/46] sched_ext: Add @kargs to scx_fork() Date: Fri, 19 Sep 2025 14:58:40 -1000 Message-ID: <20250920005931.2753828-18-tj@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250920005931.2753828-1-tj@kernel.org> References: <20250920005931.2753828-1-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 Make sched_cgroup_fork() pass @kargs to scx_fork(). This will be used to determine @p's cgroup for cgroup sub-sched support. Signed-off-by: Tejun Heo Cc: Peter Zijlstra --- kernel/sched/core.c | 2 +- kernel/sched/ext.c | 2 +- kernel/sched/ext.h | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 27dda808ed83..f2c6aaf4cc77 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4805,7 +4805,7 @@ int sched_cgroup_fork(struct task_struct *p, struct kernel_clone_args *kargs) p->sched_class->task_fork(p); raw_spin_unlock_irqrestore(&p->pi_lock, flags); - return scx_fork(p); + return scx_fork(p, kargs); } void sched_cancel_fork(struct task_struct *p) diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index ca8221378924..ddceae539e11 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -2950,7 +2950,7 @@ void scx_pre_fork(struct task_struct *p) percpu_down_read(&scx_fork_rwsem); } -int scx_fork(struct task_struct *p) +int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs) { percpu_rwsem_assert_held(&scx_fork_rwsem); diff --git a/kernel/sched/ext.h b/kernel/sched/ext.h index 43429b33e52c..0b7fc46aee08 100644 --- a/kernel/sched/ext.h +++ b/kernel/sched/ext.h @@ -11,7 +11,7 @@ void scx_tick(struct rq *rq); void init_scx_entity(struct sched_ext_entity *scx); void scx_pre_fork(struct task_struct *p); -int scx_fork(struct task_struct *p); +int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs); void scx_post_fork(struct task_struct *p); void scx_cancel_fork(struct task_struct *p); bool scx_can_stop_tick(struct rq *rq); @@ -44,7 +44,7 @@ bool scx_prio_less(const struct task_struct *a, const struct task_struct *b, static inline void scx_tick(struct rq *rq) {} static inline void scx_pre_fork(struct task_struct *p) {} -static inline int scx_fork(struct task_struct *p) { return 0; } +static inline int scx_fork(struct task_struct *p, struct kernel_clone_args *kargs) { return 0; } static inline void scx_post_fork(struct task_struct *p) {} static inline void scx_cancel_fork(struct task_struct *p) {} static inline u32 scx_cpuperf_target(s32 cpu) { return 0; } -- 2.51.0