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-rw-r--r--include/trace/events/timer_migration.h16
-rw-r--r--kernel/time/timer_migration.c24
-rw-r--r--kernel/time/timer_migration.h15
3 files changed, 27 insertions, 28 deletions
diff --git a/include/trace/events/timer_migration.h b/include/trace/events/timer_migration.h
index 79f19e76a80b..47db5eaf2f9a 100644
--- a/include/trace/events/timer_migration.h
+++ b/include/trace/events/timer_migration.h
@@ -43,7 +43,7 @@ TRACE_EVENT(tmigr_connect_child_parent,
__field( unsigned int, lvl )
__field( unsigned int, numa_node )
__field( unsigned int, num_children )
- __field( u32, childmask )
+ __field( u32, groupmask )
),
TP_fast_assign(
@@ -52,11 +52,11 @@ TRACE_EVENT(tmigr_connect_child_parent,
__entry->lvl = child->parent->level;
__entry->numa_node = child->parent->numa_node;
__entry->num_children = child->parent->num_children;
- __entry->childmask = child->childmask;
+ __entry->groupmask = child->groupmask;
),
- TP_printk("group=%p childmask=%0x parent=%p lvl=%d numa=%d num_children=%d",
- __entry->child, __entry->childmask, __entry->parent,
+ TP_printk("group=%p groupmask=%0x parent=%p lvl=%d numa=%d num_children=%d",
+ __entry->child, __entry->groupmask, __entry->parent,
__entry->lvl, __entry->numa_node, __entry->num_children)
);
@@ -72,7 +72,7 @@ TRACE_EVENT(tmigr_connect_cpu_parent,
__field( unsigned int, lvl )
__field( unsigned int, numa_node )
__field( unsigned int, num_children )
- __field( u32, childmask )
+ __field( u32, groupmask )
),
TP_fast_assign(
@@ -81,11 +81,11 @@ TRACE_EVENT(tmigr_connect_cpu_parent,
__entry->lvl = tmc->tmgroup->level;
__entry->numa_node = tmc->tmgroup->numa_node;
__entry->num_children = tmc->tmgroup->num_children;
- __entry->childmask = tmc->childmask;
+ __entry->groupmask = tmc->groupmask;
),
- TP_printk("cpu=%d childmask=%0x parent=%p lvl=%d numa=%d num_children=%d",
- __entry->cpu, __entry->childmask, __entry->parent,
+ TP_printk("cpu=%d groupmask=%0x parent=%p lvl=%d numa=%d num_children=%d",
+ __entry->cpu, __entry->groupmask, __entry->parent,
__entry->lvl, __entry->numa_node, __entry->num_children)
);
diff --git a/kernel/time/timer_migration.c b/kernel/time/timer_migration.c
index f5652b0aa90e..ca76120ee7c6 100644
--- a/kernel/time/timer_migration.c
+++ b/kernel/time/timer_migration.c
@@ -495,7 +495,7 @@ static bool tmigr_check_lonely(struct tmigr_group *group)
* outcome is a CPU which might wake up a little early.
* @evt: Pointer to tmigr_event which needs to be queued (of idle
* child group)
- * @childmask: childmask of child group
+ * @childmask: groupmask of child group
* @remote: Is set, when the new timer path is executed in
* tmigr_handle_remote_cpu()
* @basej: timer base in jiffies
@@ -535,7 +535,7 @@ static void __walk_groups(up_f up, struct tmigr_walk *data,
child = group;
group = group->parent;
- data->childmask = child->childmask;
+ data->childmask = child->groupmask;
} while (group);
}
@@ -669,7 +669,7 @@ static void __tmigr_cpu_activate(struct tmigr_cpu *tmc)
{
struct tmigr_walk data;
- data.childmask = tmc->childmask;
+ data.childmask = tmc->groupmask;
trace_tmigr_cpu_active(tmc);
@@ -1049,7 +1049,7 @@ void tmigr_handle_remote(void)
if (tmigr_is_not_available(tmc))
return;
- data.childmask = tmc->childmask;
+ data.childmask = tmc->groupmask;
data.firstexp = KTIME_MAX;
/*
@@ -1057,7 +1057,7 @@ void tmigr_handle_remote(void)
* in tmigr_handle_remote_up() anyway. Keep this check to speed up the
* return when nothing has to be done.
*/
- if (!tmigr_check_migrator(tmc->tmgroup, tmc->childmask)) {
+ if (!tmigr_check_migrator(tmc->tmgroup, tmc->groupmask)) {
/*
* If this CPU was an idle migrator, make sure to clear its wakeup
* value so it won't chase timers that have already expired elsewhere.
@@ -1150,7 +1150,7 @@ bool tmigr_requires_handle_remote(void)
return ret;
data.now = get_jiffies_update(&jif);
- data.childmask = tmc->childmask;
+ data.childmask = tmc->groupmask;
data.firstexp = KTIME_MAX;
data.tmc_active = !tmc->idle;
data.check = false;
@@ -1310,7 +1310,7 @@ static u64 __tmigr_cpu_deactivate(struct tmigr_cpu *tmc, u64 nextexp)
struct tmigr_walk data = { .nextexp = nextexp,
.firstexp = KTIME_MAX,
.evt = &tmc->cpuevt,
- .childmask = tmc->childmask };
+ .childmask = tmc->groupmask };
/*
* If nextexp is KTIME_MAX, the CPU event will be ignored because the
@@ -1388,7 +1388,7 @@ u64 tmigr_quick_check(u64 nextevt)
if (WARN_ON_ONCE(tmc->idle))
return nextevt;
- if (!tmigr_check_migrator_and_lonely(tmc->tmgroup, tmc->childmask))
+ if (!tmigr_check_migrator_and_lonely(tmc->tmgroup, tmc->groupmask))
return KTIME_MAX;
do {
@@ -1552,7 +1552,7 @@ static void tmigr_connect_child_parent(struct tmigr_group *child,
raw_spin_lock_nested(&parent->lock, SINGLE_DEPTH_NESTING);
child->parent = parent;
- child->childmask = BIT(parent->num_children++);
+ child->groupmask = BIT(parent->num_children++);
raw_spin_unlock(&parent->lock);
raw_spin_unlock_irq(&child->lock);
@@ -1586,7 +1586,7 @@ static void tmigr_connect_child_parent(struct tmigr_group *child,
* the new childmask and parent to subsequent walkers through this
* @child. Therefore propagate active state unconditionally.
*/
- data.childmask = child->childmask;
+ data.childmask = child->groupmask;
/*
* There is only one new level per time (which is protected by
@@ -1652,7 +1652,7 @@ static int tmigr_setup_groups(unsigned int cpu, unsigned int node)
raw_spin_lock_irq(&group->lock);
tmc->tmgroup = group;
- tmc->childmask = BIT(group->num_children++);
+ tmc->groupmask = BIT(group->num_children++);
raw_spin_unlock_irq(&group->lock);
@@ -1731,7 +1731,7 @@ static int tmigr_cpu_prepare(unsigned int cpu)
if (ret < 0)
return ret;
- if (tmc->childmask == 0)
+ if (tmc->groupmask == 0)
return -EINVAL;
return ret;
diff --git a/kernel/time/timer_migration.h b/kernel/time/timer_migration.h
index 494f68cc13f4..154accc7a543 100644
--- a/kernel/time/timer_migration.h
+++ b/kernel/time/timer_migration.h
@@ -51,9 +51,8 @@ struct tmigr_event {
* @num_children: Counter of group children to make sure the group is only
* filled with TMIGR_CHILDREN_PER_GROUP; Required for setup
* only
- * @childmask: childmask of the group in the parent group; is set
- * during setup and will never change; can be read
- * lockless
+ * @groupmask: mask of the group in the parent group; is set during
+ * setup and will never change; can be read lockless
* @list: List head that is added to the per level
* tmigr_level_list; is required during setup when a
* new group needs to be connected to the existing
@@ -69,7 +68,7 @@ struct tmigr_group {
unsigned int level;
int numa_node;
unsigned int num_children;
- u8 childmask;
+ u8 groupmask;
struct list_head list;
};
@@ -89,7 +88,7 @@ struct tmigr_group {
* hierarchy
* @remote: Is set when timers of the CPU are expired remotely
* @tmgroup: Pointer to the parent group
- * @childmask: childmask of tmigr_cpu in the parent group
+ * @groupmask: mask of tmigr_cpu in the parent group
* @wakeup: Stores the first timer when the timer migration
* hierarchy is completely idle and remote expiry was done;
* is returned to timer code in the idle path and is only
@@ -102,7 +101,7 @@ struct tmigr_cpu {
bool idle;
bool remote;
struct tmigr_group *tmgroup;
- u8 childmask;
+ u8 groupmask;
u64 wakeup;
struct tmigr_event cpuevt;
};
@@ -118,8 +117,8 @@ union tmigr_state {
u32 state;
/**
* struct - split state of tmigr_group
- * @active: Contains each childmask bit of the active children
- * @migrator: Contains childmask of the child which is migrator
+ * @active: Contains each mask bit of the active children
+ * @migrator: Contains mask of the child which is migrator
* @seq: Sequence counter needs to be increased when an update
* to the tmigr_state is done. It prevents a race when
* updates in the child groups are propagated in changed
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-30 19:37:29 +0000