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sched_ext: Change the event type from u64 to s64

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The event count could be negative in the future,
so change the event type from u64 to s64.

Signed-off-by: Changwoo Min <changwoo@igalia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Changwoo Min 2025-03-04 19:48:59 +09:00 committed by Tejun Heo
parent 8a9b1585e2
commit 038730dc12
2 changed files with 18 additions and 18 deletions
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20
kernel/sched/ext.c
View File

@ -1489,53 +1489,53 @@ 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.
*/
u64 SCX_EV_SELECT_CPU_FALLBACK;
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.
*/
u64 SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE;
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.
*/
u64 SCX_EV_DISPATCH_KEEP_LAST;
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.
*/
u64 SCX_EV_ENQ_SKIP_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.
*/
u64 SCX_EV_ENQ_SKIP_MIGRATION_DISABLED;
s64 SCX_EV_ENQ_SKIP_MIGRATION_DISABLED;
/*
* The total number of tasks enqueued (or pick_task-ed) with a
* default time slice (SCX_SLICE_DFL).
*/
u64 SCX_EV_ENQ_SLICE_DFL;
s64 SCX_EV_ENQ_SLICE_DFL;
/*
* The total duration of bypass modes in nanoseconds.
*/
u64 SCX_EV_BYPASS_DURATION;
s64 SCX_EV_BYPASS_DURATION;
/*
* The number of tasks dispatched in the bypassing mode.
*/
u64 SCX_EV_BYPASS_DISPATCH;
s64 SCX_EV_BYPASS_DISPATCH;
/*
* The number of times the bypassing mode has been activated.
*/
u64 SCX_EV_BYPASS_ACTIVATE;
s64 SCX_EV_BYPASS_ACTIVATE;
};
/*
@ -1584,7 +1584,7 @@ static DEFINE_PER_CPU(struct scx_event_stats, event_stats_cpu);
* @kind: a kind of event to dump
*/
#define scx_dump_event(s, events, kind) do { \
dump_line(&(s), "%40s: %16llu", #kind, (events)->kind); \
dump_line(&(s), "%40s: %16lld", #kind, (events)->kind); \
} while (0)

16
tools/sched_ext/scx_qmap.bpf.c
View File

@ -776,21 +776,21 @@ static int monitor_timerfn(void *map, int *key, struct bpf_timer *timer)
__COMPAT_scx_bpf_events(&events, sizeof(events));
bpf_printk("%35s: %llu", "SCX_EV_SELECT_CPU_FALLBACK",
bpf_printk("%35s: %lld", "SCX_EV_SELECT_CPU_FALLBACK",
scx_read_event(&events, SCX_EV_SELECT_CPU_FALLBACK));
bpf_printk("%35s: %llu", "SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE",
bpf_printk("%35s: %lld", "SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE",
scx_read_event(&events, SCX_EV_DISPATCH_LOCAL_DSQ_OFFLINE));
bpf_printk("%35s: %llu", "SCX_EV_DISPATCH_KEEP_LAST",
bpf_printk("%35s: %lld", "SCX_EV_DISPATCH_KEEP_LAST",
scx_read_event(&events, SCX_EV_DISPATCH_KEEP_LAST));
bpf_printk("%35s: %llu", "SCX_EV_ENQ_SKIP_EXITING",
bpf_printk("%35s: %lld", "SCX_EV_ENQ_SKIP_EXITING",
scx_read_event(&events, SCX_EV_ENQ_SKIP_EXITING));
bpf_printk("%35s: %llu", "SCX_EV_ENQ_SLICE_DFL",
bpf_printk("%35s: %lld", "SCX_EV_ENQ_SLICE_DFL",
scx_read_event(&events, SCX_EV_ENQ_SLICE_DFL));
bpf_printk("%35s: %llu", "SCX_EV_BYPASS_DURATION",
bpf_printk("%35s: %lld", "SCX_EV_BYPASS_DURATION",
scx_read_event(&events, SCX_EV_BYPASS_DURATION));
bpf_printk("%35s: %llu", "SCX_EV_BYPASS_DISPATCH",
bpf_printk("%35s: %lld", "SCX_EV_BYPASS_DISPATCH",
scx_read_event(&events, SCX_EV_BYPASS_DISPATCH));
bpf_printk("%35s: %llu", "SCX_EV_BYPASS_ACTIVATE",
bpf_printk("%35s: %lld", "SCX_EV_BYPASS_ACTIVATE",
scx_read_event(&events, SCX_EV_BYPASS_ACTIVATE));
bpf_timer_start(timer, ONE_SEC_IN_NS, 0);