V4L/DVB (13946): proc_fops: convert av7110

[safe/jmp/linux-2.6] / kernel / perf_event.c

diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 03cc061..2ae7409 100644 (file)
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -1617,7 +1617,7 @@ static struct perf_event_context *find_get_context(pid_t pid, int cpu)
                 * offline CPU and activate it when the CPU comes up, but
                 * that's for later.
                 */
-               if (!cpu_isset(cpu, cpu_online_map))
+               if (!cpu_online(cpu))
                        return ERR_PTR(-ENODEV);
 
                cpuctx = &per_cpu(perf_cpu_context, cpu);
@@ -3259,8 +3259,6 @@ static void perf_event_task_output(struct perf_event *event,
        task_event->event_id.tid = perf_event_tid(event, task);
        task_event->event_id.ptid = perf_event_tid(event, current);
 
-       task_event->event_id.time = perf_clock();
-
        perf_output_put(&handle, task_event->event_id);
 
        perf_output_end(&handle);
@@ -3268,6 +3266,9 @@ static void perf_event_task_output(struct perf_event *event,
 
 static int perf_event_task_match(struct perf_event *event)
 {
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
+               return 0;
+
        if (event->cpu != -1 && event->cpu != smp_processor_id())
                return 0;
 
@@ -3297,7 +3298,7 @@ static void perf_event_task_event(struct perf_task_event *task_event)
        cpuctx = &get_cpu_var(perf_cpu_context);
        perf_event_task_ctx(&cpuctx->ctx, task_event);
        if (!ctx)
-               ctx = rcu_dereference(task_event->task->perf_event_ctxp);
+               ctx = rcu_dereference(current->perf_event_ctxp);
        if (ctx)
                perf_event_task_ctx(ctx, task_event);
        put_cpu_var(perf_cpu_context);
@@ -3328,6 +3329,7 @@ static void perf_event_task(struct task_struct *task,
                        /* .ppid */
                        /* .tid  */
                        /* .ptid */
+                       .time = perf_clock(),
                },
        };
 
@@ -3377,6 +3379,9 @@ static void perf_event_comm_output(struct perf_event *event,
 
 static int perf_event_comm_match(struct perf_event *event)
 {
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
+               return 0;
+
        if (event->cpu != -1 && event->cpu != smp_processor_id())
                return 0;
 
@@ -3494,6 +3499,9 @@ static void perf_event_mmap_output(struct perf_event *event,
 static int perf_event_mmap_match(struct perf_event *event,
                                   struct perf_mmap_event *mmap_event)
 {
+       if (event->state < PERF_EVENT_STATE_INACTIVE)
+               return 0;
+
        if (event->cpu != -1 && event->cpu != smp_processor_id())
                return 0;
 
@@ -4571,7 +4579,7 @@ static int perf_copy_attr(struct perf_event_attr __user *uattr,
        if (attr->type >= PERF_TYPE_MAX)
                return -EINVAL;
 
-       if (attr->__reserved_1 || attr->__reserved_2)
+       if (attr->__reserved_1)
                return -EINVAL;
 
        if (attr->sample_type & ~(PERF_SAMPLE_MAX-1))
@@ -4724,7 +4732,7 @@ SYSCALL_DEFINE5(perf_event_open,
        if (IS_ERR(event))
                goto err_put_context;
 
-       err = anon_inode_getfd("[perf_event]", &perf_fops, event, 0);
+       err = anon_inode_getfd("[perf_event]", &perf_fops, event, O_RDWR);
        if (err < 0)
                goto err_free_put_context;
 
@@ -5148,7 +5156,7 @@ int perf_event_init_task(struct task_struct *child)
                                            GFP_KERNEL);
                        if (!child_ctx) {
                                ret = -ENOMEM;
-                               goto exit;
+                               break;
                        }
 
                        __perf_event_init_context(child_ctx, child);
@@ -5164,7 +5172,7 @@ int perf_event_init_task(struct task_struct *child)
                }
        }
 
-       if (inherited_all) {
+       if (child_ctx && inherited_all) {
                /*
                 * Mark the child context as a clone of the parent
                 * context, or of whatever the parent is a clone of.
@@ -5184,7 +5192,6 @@ int perf_event_init_task(struct task_struct *child)
                get_ctx(child_ctx->parent_ctx);
        }
 
-exit:
        mutex_unlock(&parent_ctx->mutex);
 
        perf_unpin_context(parent_ctx);