Tejun Heo cc39454c34
sched_ext: Remove scx_ops_enq_* static_keys ...
scx_ops_enq_last/exiting/migration_disabled are used to encode the
corresponding SCX_OPS_ flags into static_keys. These flags aren't hot enough
for static_key usage to make any meaningful difference and are made
static_keys mostly because there was no reason not to. However, global
static_keys can't work with the planned hierarchical multiple scheduler
support. Remove the static_keys and test the ops flags directly.
In repeated hackbench runs before and after static_keys removal on an AMD
Ryzen 3900X, I couldn't tell any measurable performance difference.
Signed-off-by: Tejun Heo <tj@kernel.org >
Acked-by: Changwoo Min <changwoo@igalia.com >
Acked-by: Andrea Righi <arighi@nvidia.com >
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cc39454c34