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Diffstat (limited to 'kernel/perf_event.c')
-rw-r--r--kernel/perf_event.c43
1 files changed, 24 insertions, 19 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 288ce43de57..149ca18371b 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -147,7 +147,7 @@ perf_lock_task_context(struct task_struct *task, unsigned long *flags)
struct perf_event_context *ctx;
rcu_read_lock();
- retry:
+retry:
ctx = rcu_dereference(task->perf_event_ctxp);
if (ctx) {
/*
@@ -619,7 +619,7 @@ void perf_event_disable(struct perf_event *event)
return;
}
- retry:
+retry:
task_oncpu_function_call(task, __perf_event_disable, event);
raw_spin_lock_irq(&ctx->lock);
@@ -849,7 +849,7 @@ static void __perf_install_in_context(void *info)
if (!err && !ctx->task && cpuctx->max_pertask)
cpuctx->max_pertask--;
- unlock:
+unlock:
perf_enable();
raw_spin_unlock(&ctx->lock);
@@ -922,10 +922,12 @@ static void __perf_event_mark_enabled(struct perf_event *event,
event->state = PERF_EVENT_STATE_INACTIVE;
event->tstamp_enabled = ctx->time - event->total_time_enabled;
- list_for_each_entry(sub, &event->sibling_list, group_entry)
- if (sub->state >= PERF_EVENT_STATE_INACTIVE)
+ list_for_each_entry(sub, &event->sibling_list, group_entry) {
+ if (sub->state >= PERF_EVENT_STATE_INACTIVE) {
sub->tstamp_enabled =
ctx->time - sub->total_time_enabled;
+ }
+ }
}
/*
@@ -991,7 +993,7 @@ static void __perf_event_enable(void *info)
}
}
- unlock:
+unlock:
raw_spin_unlock(&ctx->lock);
}
@@ -1032,7 +1034,7 @@ void perf_event_enable(struct perf_event *event)
if (event->state == PERF_EVENT_STATE_ERROR)
event->state = PERF_EVENT_STATE_OFF;
- retry:
+retry:
raw_spin_unlock_irq(&ctx->lock);
task_oncpu_function_call(task, __perf_event_enable, event);
@@ -1052,7 +1054,7 @@ void perf_event_enable(struct perf_event *event)
if (event->state == PERF_EVENT_STATE_OFF)
__perf_event_mark_enabled(event, ctx);
- out:
+out:
raw_spin_unlock_irq(&ctx->lock);
}
@@ -1092,17 +1094,19 @@ static void ctx_sched_out(struct perf_event_context *ctx,
if (!ctx->nr_active)
goto out_enable;
- if (event_type & EVENT_PINNED)
+ if (event_type & EVENT_PINNED) {
list_for_each_entry(event, &ctx->pinned_groups, group_entry)
group_sched_out(event, cpuctx, ctx);
+ }
- if (event_type & EVENT_FLEXIBLE)
+ if (event_type & EVENT_FLEXIBLE) {
list_for_each_entry(event, &ctx->flexible_groups, group_entry)
group_sched_out(event, cpuctx, ctx);
+ }
out_enable:
perf_enable();
- out:
+out:
raw_spin_unlock(&ctx->lock);
}
@@ -1341,9 +1345,10 @@ ctx_flexible_sched_in(struct perf_event_context *ctx,
if (event->cpu != -1 && event->cpu != smp_processor_id())
continue;
- if (group_can_go_on(event, cpuctx, can_add_hw))
+ if (group_can_go_on(event, cpuctx, can_add_hw)) {
if (group_sched_in(event, cpuctx, ctx))
can_add_hw = 0;
+ }
}
}
@@ -1373,7 +1378,7 @@ ctx_sched_in(struct perf_event_context *ctx,
ctx_flexible_sched_in(ctx, cpuctx);
perf_enable();
- out:
+out:
raw_spin_unlock(&ctx->lock);
}
@@ -1714,7 +1719,7 @@ static void perf_event_enable_on_exec(struct task_struct *task)
raw_spin_unlock(&ctx->lock);
perf_event_task_sched_in(task);
- out:
+out:
local_irq_restore(flags);
}
@@ -2053,7 +2058,7 @@ static struct perf_event_context *find_get_context(pid_t pid, int cpu)
if (!ptrace_may_access(task, PTRACE_MODE_READ))
goto errout;
- retry:
+retry:
ctx = perf_lock_task_context(task, &flags);
if (ctx) {
unclone_ctx(ctx);
@@ -2081,7 +2086,7 @@ static struct perf_event_context *find_get_context(pid_t pid, int cpu)
put_task_struct(task);
return ctx;
- errout:
+errout:
put_task_struct(task);
return ERR_PTR(err);
}
@@ -3264,7 +3269,7 @@ again:
if (handle->wakeup != local_read(&buffer->wakeup))
perf_output_wakeup(handle);
- out:
+out:
preempt_enable();
}
@@ -4562,7 +4567,7 @@ static int swevent_hlist_get_cpu(struct perf_event *event, int cpu)
rcu_assign_pointer(cpuctx->swevent_hlist, hlist);
}
cpuctx->hlist_refcount++;
- exit:
+exit:
mutex_unlock(&cpuctx->hlist_mutex);
return err;
@@ -4587,7 +4592,7 @@ static int swevent_hlist_get(struct perf_event *event)
put_online_cpus();
return 0;
- fail:
+fail:
for_each_possible_cpu(cpu) {
if (cpu == failed_cpu)
break;