Commit f97a7915 authored by Tejun Heo's avatar Tejun Heo
Browse files

sched_ext: Relocate scx_event_stats definition 



In prepration of moving event_stats_cpu into scx_sched, move scx_event_stats
definitions above scx_sched definition. No functional changes.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Reviewed-by: default avatarAndrea Righi <arighi@nvidia.com>
Acked-by: default avatarChangwoo Min <changwoo@igalia.com>
parent 8409b800

kernel/sched/ext.c

+57 −57
Original line number Diff line number Diff line
@@ -766,6 +766,63 @@ enum scx_opi { 
	SCX_OPI_END			= SCX_OP_IDX(init),

};



/*

 * Collection of event counters. Event types are placed in descending order.

 */

struct scx_event_stats {

	/*

	 * If ops.select_cpu() returns a CPU which can't be used by the task,

	 * the core scheduler code silently picks a fallback CPU.

	 */

	s64		SCX_EV_SELECT_CPU_FALLBACK;



	/*

	 * When dispatching to a local DSQ, the CPU may have gone offline in

	 * the meantime. In this case, the task is bounced to the global DSQ.

	 */

	s64		SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE;



	/*

	 * If SCX_OPS_ENQ_LAST is not set, the number of times that a task

	 * continued to run because there were no other tasks on the CPU.

	 */

	s64		SCX_EV_DISPATCH_KEEP_LAST;



	/*

	 * If SCX_OPS_ENQ_EXITING is not set, the number of times that a task

	 * is dispatched to a local DSQ when exiting.

	 */

	s64		SCX_EV_ENQ_SKIP_EXITING;



	/*

	 * If SCX_OPS_ENQ_MIGRATION_DISABLED is not set, the number of times a

	 * migration disabled task skips ops.enqueue() and is dispatched to its

	 * local DSQ.

	 */

	s64		SCX_EV_ENQ_SKIP_MIGRATION_DISABLED;



	/*

	 * Total number of times a task's time slice was refilled with the

	 * default value (SCX_SLICE_DFL).

	 */

	s64		SCX_EV_REFILL_SLICE_DFL;



	/*

	 * The total duration of bypass modes in nanoseconds.

	 */

	s64		SCX_EV_BYPASS_DURATION;



	/*

	 * The number of tasks dispatched in the bypassing mode.

	 */

	s64		SCX_EV_BYPASS_DISPATCH;



	/*

	 * The number of times the bypassing mode has been activated.

	 */

	s64		SCX_EV_BYPASS_ACTIVATE;

};



struct scx_sched {

	struct sched_ext_ops	ops;

	DECLARE_BITMAP(has_op, SCX_OPI_END);
@@ -1542,63 +1599,6 @@ static struct task_struct *scx_task_iter_next_locked(struct scx_task_iter *iter) 
	return p;

}



/*

 * Collection of event counters. Event types are placed in descending order.

 */

struct scx_event_stats {

	/*

	 * If ops.select_cpu() returns a CPU which can't be used by the task,

	 * the core scheduler code silently picks a fallback CPU.

	 */

	s64		SCX_EV_SELECT_CPU_FALLBACK;



	/*

	 * When dispatching to a local DSQ, the CPU may have gone offline in

	 * the meantime. In this case, the task is bounced to the global DSQ.

	 */

	s64		SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE;



	/*

	 * If SCX_OPS_ENQ_LAST is not set, the number of times that a task

	 * continued to run because there were no other tasks on the CPU.

	 */

	s64		SCX_EV_DISPATCH_KEEP_LAST;



	/*

	 * If SCX_OPS_ENQ_EXITING is not set, the number of times that a task

	 * is dispatched to a local DSQ when exiting.

	 */

	s64		SCX_EV_ENQ_SKIP_EXITING;



	/*

	 * If SCX_OPS_ENQ_MIGRATION_DISABLED is not set, the number of times a

	 * migration disabled task skips ops.enqueue() and is dispatched to its

	 * local DSQ.

	 */

	s64		SCX_EV_ENQ_SKIP_MIGRATION_DISABLED;



	/*

	 * Total number of times a task's time slice was refilled with the

	 * default value (SCX_SLICE_DFL).

	 */

	s64		SCX_EV_REFILL_SLICE_DFL;



	/*

	 * The total duration of bypass modes in nanoseconds.

	 */

	s64		SCX_EV_BYPASS_DURATION;



	/*

	 * The number of tasks dispatched in the bypassing mode.

	 */

	s64		SCX_EV_BYPASS_DISPATCH;



	/*

	 * The number of times the bypassing mode has been activated.

	 */

	s64		SCX_EV_BYPASS_ACTIVATE;

};



/*

 * The event counter is organized by a per-CPU variable to minimize the

 * accounting overhead without synchronization. A system-wide view on the