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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
sched_ext: Add scx_bpf_now() for BPF scheduler
scx_bpf_now() is added to the header files so the BPF scheduler
can use it.
Signed-off-by: Changwoo Min <changwoo@igalia.com>
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
authored by
Changwoo Min
and committed by
Tejun Heo
2e1ce39f
3a9910b5
+6
+1
tools/sched_ext/include/scx/common.bpf.h
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tools/sched_ext/include/scx/common.bpf.h
···
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s32 scx_bpf_task_cpu(const struct task_struct *p) __ksym;
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struct rq *scx_bpf_cpu_rq(s32 cpu) __ksym;
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struct cgroup *scx_bpf_task_cgroup(struct task_struct *p) __ksym __weak;
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u64 scx_bpf_now(void) __ksym __weak;
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/*
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* Use the following as @it__iter when calling scx_bpf_dsq_move[_vtime]() from
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tools/sched_ext/include/scx/compat.bpf.h
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tools/sched_ext/include/scx/compat.bpf.h
···
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false; \
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})
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#define scx_bpf_now() \
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(bpf_ksym_exists(scx_bpf_now) ? \
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scx_bpf_now() : \
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bpf_ktime_get_ns())
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/*
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* Define sched_ext_ops. This may be expanded to define multiple variants for
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* backward compatibility. See compat.h::SCX_OPS_LOAD/ATTACH().