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[72.235.129.167]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2d1b36dd511sm2218437a91.34.2024.08.07.17.25.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Aug 2024 17:25:56 -0700 (PDT) Sender: Tejun Heo From: Tejun Heo To: void@manifault.com, peterz@infradead.org, mingo@redhat.com Cc: cgroups@vger.kernel.org, lizefan.x@bytedance.com, hannes@cmpxchg.org, mkoutny@suse.com, kernel-team@meta.com, linux-kernel@vger.kernel.org, Tejun Heo , David Vernet , Josh Don , Hao Luo , Barret Rhoden Subject: [PATCH 2/7] sched: Expose css_tg() Date: Wed, 7 Aug 2024 14:25:24 -1000 Message-ID: <20240808002550.731248-3-tj@kernel.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240808002550.731248-1-tj@kernel.org> References: <20240808002550.731248-1-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 A new BPF extensible sched_class will use css_tg() in the init and exit paths to visit all task_groups by walking cgroups. v4: __setscheduler_prio() is already exposed. Dropped from this patch. v3: Dropped SCHED_CHANGE_BLOCK() as upstream is adding more generic cleanup mechanism. v2: Expose SCHED_CHANGE_BLOCK() too and update the description. Signed-off-by: Tejun Heo Reviewed-by: David Vernet Acked-by: Josh Don Acked-by: Hao Luo Acked-by: Barret Rhoden --- kernel/sched/core.c | 5 ----- kernel/sched/sched.h | 5 +++++ 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 0e64a9362aa1..c9678614e476 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -8918,11 +8918,6 @@ void sched_move_task(struct task_struct *tsk) } } -static inline struct task_group *css_tg(struct cgroup_subsys_state *css) -{ - return css ? container_of(css, struct task_group, css) : NULL; -} - static struct cgroup_subsys_state * cpu_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) { diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 9373426d5aae..e38e25d00d88 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -514,6 +514,11 @@ static inline int walk_tg_tree(tg_visitor down, tg_visitor up, void *data) return walk_tg_tree_from(&root_task_group, down, up, data); } +static inline struct task_group *css_tg(struct cgroup_subsys_state *css) +{ + return css ? container_of(css, struct task_group, css) : NULL; +} + extern int tg_nop(struct task_group *tg, void *data); #ifdef CONFIG_FAIR_GROUP_SCHED -- 2.46.0