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| author | Tejun Heo <tj@kernel.org> | 2025-09-23 09:03:26 -1000 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2025-09-23 09:03:26 -1000 |
| commit | f3aec2adce8dbe37dabff47a16bfb260b987e0b0 (patch) | |
| tree | 3a8d9a13b4c295614a7685d679651eb6cd41e34e /kernel/sched/ext.c | |
| parent | sched_ext: Use bitfields for boolean warning flags (diff) | |
| download | linux-f3aec2adce8dbe37dabff47a16bfb260b987e0b0.tar.gz linux-f3aec2adce8dbe37dabff47a16bfb260b987e0b0.zip | |
sched_ext: Add SCX_EFLAG_INITIALIZED to indicate successful ops.init()
ops.exit() may be called even if the loading failed before ops.init()
finishes successfully. This is because ops.exit() allows rich exit info
communication. Add SCX_EFLAG_INITIALIZED flag to scx_exit_info.flags to
indicate whether ops.init() finished successfully.
This enables BPF schedulers to distinguish between exit scenarios and
handle cleanup appropriately based on initialization state.
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/sched/ext.c')
| -rw-r--r-- | kernel/sched/ext.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 8769cfdc22e3..7368075dbfd2 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -4554,6 +4554,7 @@ static int scx_enable(struct sched_ext_ops *ops, struct bpf_link *link) scx_error(sch, "ops.init() failed (%d)", ret); goto err_disable; } + sch->exit_info->flags |= SCX_EFLAG_INITIALIZED; } for (i = SCX_OPI_CPU_HOTPLUG_BEGIN; i < SCX_OPI_CPU_HOTPLUG_END; i++) |