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 DE57B1C68F; Wed, 4 Mar 2026 22:01:22 +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=1772661683; cv=none; b=FuxnDyjBHC7qI8htZkBKbzxQUbcHOmKpOZbdqcSt8ELuvitz9aKxxtzhv+q/JQyumjFO1HOzmsMIjvH/HR6MITc2YPSrr3SiPmFtiFg8kVYGxPFE5CnW+3EPJtwBeAL84yg3xh/FYAl7rvyvgxvwVsJe67++o2eryWSd84xlKT8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772661683; c=relaxed/simple; bh=TwAFQbDdK/uGRb9tNtr2C1NA9/tXwgL0dbvA30rSqNk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mDKPbRCEdzN52uEMs/dFwg1EjFHOP2A8pXkpj1bF3aoF+UVbB+NeJCr0frWVjtA3Xy2p+i2wdliktaUQphN97I+c+s0TwKzfCvY8cnP0hmQfDaAhjeWQiES47PFOEUkAsLJbzp2FnjIUgokY7vBA/ubVzIyy/8tVg3BxZ3sikPQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YUXfPCaP; 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="YUXfPCaP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64455C4CEF7; Wed, 4 Mar 2026 22:01:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772661682; bh=TwAFQbDdK/uGRb9tNtr2C1NA9/tXwgL0dbvA30rSqNk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YUXfPCaPujVwHwimtRCR6zU2oZXaAPjglhs3A1j4FLnSIvzAGYzgctS0OiwfSmLRz GbgEUAJQ/+rWT2mYXmeMV5DgJKtkBxYphuo1Dth/51YOWibUgLd0DNpPQDghwPHiH9 CNDMxDBRRZK9IcoE7zlhR5w0RUmyxg8bbwm8jUXzok103dZe5RUxT4kSriR5JRRDnw LzXT61SC6FIXbE+Rf/zDD8WGndlZJXq8M56OtB9nspLSTWwsEJa8Z143ZjwsOSBtRL BkGUismZCAVhWYEKSHlmdjABe2EfIWX5/+dbNJM+nHSD8/omwazlBn4eANUwzfly8q KOnT0xeCifo4Q== From: Tejun Heo To: linux-kernel@vger.kernel.org, sched-ext@lists.linux.dev Cc: void@manifault.com, arighi@nvidia.com, changwoo@igalia.com, emil@etsalapatis.com, Tejun Heo , Peter Zijlstra Subject: [PATCH 02/34] sched_ext: Add @kargs to scx_fork() Date: Wed, 4 Mar 2026 12:00:47 -1000 Message-ID: <20260304220119.4095551-3-tj@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260304220119.4095551-1-tj@kernel.org> References: <20260304220119.4095551-1-tj@kernel.org> Precedence: bulk X-Mailing-List: sched-ext@lists.linux.dev 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 b7f77c165a6e..dfe680e78be3 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4721,7 +4721,7 @@ 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 0bd86540472d..7e6abe7303a2 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -3171,7 +3171,7 @@ 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; } -- 2.53.0