diff options
| author | Tejun Heo <tj@kernel.org> | 2025-10-06 15:51:45 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-10-13 08:49:29 -1000 |
| commit | 3035addfaf285f32d1f513d181ebcb85924ae3c3 (patch) | |
| tree | 7b891db099e10a42e8c70c7e966aed393eba8df7 /tools | |
| parent | 111a79800aeda615797f20b3a00ef116edce9e03 (diff) | |
sched_ext: Add scx_bpf_task_set_slice() and scx_bpf_task_set_dsq_vtime()
With the planned hierarchical scheduler support, sub-schedulers will need to
be verified for authority before being allowed to modify task->scx.slice and
task->scx.dsq_vtime. Add scx_bpf_task_set_slice() and
scx_bpf_task_set_dsq_vtime() which will perform the necessary permission
checks.
Root schedulers can still directly write to these fields, so this doesn't
affect existing schedulers.
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/sched_ext/include/scx/common.bpf.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/sched_ext/include/scx/common.bpf.h b/tools/sched_ext/include/scx/common.bpf.h index 06e2551033cb..505231b7b7ae 100644 --- a/tools/sched_ext/include/scx/common.bpf.h +++ b/tools/sched_ext/include/scx/common.bpf.h @@ -102,6 +102,8 @@ s32 scx_bpf_pick_any_cpu_node(const cpumask_t *cpus_allowed, int node, u64 flags s32 scx_bpf_pick_any_cpu(const cpumask_t *cpus_allowed, u64 flags) __ksym; bool scx_bpf_task_running(const struct task_struct *p) __ksym; s32 scx_bpf_task_cpu(const struct task_struct *p) __ksym; +bool scx_bpf_task_set_slice(struct task_struct *p, u64 slice) __ksym __weak; +bool scx_bpf_task_set_dsq_vtime(struct task_struct *p, u64 vtime) __ksym __weak; struct rq *scx_bpf_cpu_rq(s32 cpu) __ksym; struct rq *scx_bpf_locked_rq(void) __ksym; struct task_struct *scx_bpf_cpu_curr(s32 cpu) __ksym __weak; |