diff options
Diffstat (limited to 'tools/sched_ext/include/scx/compat.bpf.h')
| -rw-r--r-- | tools/sched_ext/include/scx/compat.bpf.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/sched_ext/include/scx/compat.bpf.h b/tools/sched_ext/include/scx/compat.bpf.h index 36e0cd2fd4ed..dd9144624dc9 100644 --- a/tools/sched_ext/include/scx/compat.bpf.h +++ b/tools/sched_ext/include/scx/compat.bpf.h @@ -231,6 +231,23 @@ static inline bool __COMPAT_is_enq_cpu_selected(u64 enq_flags) scx_bpf_pick_any_cpu(cpus_allowed, flags)) /* + * v6.18: Add a helper to retrieve the current task running on a CPU. + * + * Keep this helper available until v6.20 for compatibility. + */ +static inline struct task_struct *__COMPAT_scx_bpf_cpu_curr(int cpu) +{ + struct rq *rq; + + if (bpf_ksym_exists(scx_bpf_cpu_curr)) + return scx_bpf_cpu_curr(cpu); + + rq = scx_bpf_cpu_rq(cpu); + + return rq ? rq->curr : NULL; +} + +/* * Define sched_ext_ops. This may be expanded to define multiple variants for * backward compatibility. See compat.h::SCX_OPS_LOAD/ATTACH(). */ |