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| author |   David Vernet <dvernet@meta.com> | 2024-06-18 10:09:20 -1000 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2024-06-18 10:09:20 -1000 |
| commit | 90e55164dad42c6546b698c031697b224a320834 (patch) | |
| tree | 586288dd624644304c249b061c0078acdbb9b659 /kernel/sched/sched.h | |
| parent | sched_ext: Track tasks that are subjects of the in-flight SCX operation (diff) | |
| download | wireguard-linux-90e55164dad42c6546b698c031697b224a320834.tar.xz wireguard-linux-90e55164dad42c6546b698c031697b224a320834.zip | |
sched_ext: Implement SCX_KICK_WAIT
If set when calling scx_bpf_kick_cpu(), the invoking CPU will busy wait for
the kicked cpu to enter the scheduler. See the following for example usage:
https://github.com/sched-ext/scx/blob/main/scheds/c/scx_pair.bpf.c
v2: - Updated to fit the updated kick_cpus_irq_workfn() implementation.
- Include SCX_KICK_WAIT related information in debug dump.
Signed-off-by: David Vernet <dvernet@meta.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Josh Don <joshdon@google.com>
Acked-by: Hao Luo <haoluo@google.com>
Acked-by: Barret Rhoden <brho@google.com>
Diffstat (limited to '')
| -rw-r--r-- | kernel/sched/sched.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index b3c578cb43cd..734206e13897 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -740,6 +740,8 @@ struct scx_rq { cpumask_var_t cpus_to_kick; cpumask_var_t cpus_to_kick_if_idle; cpumask_var_t cpus_to_preempt; + cpumask_var_t cpus_to_wait; + unsigned long pnt_seq; struct irq_work kick_cpus_irq_work; }; #endif /* CONFIG_SCHED_CLASS_EXT */ |