struct file;
struct perf_mmap_data {
+ atomic_t refcount;
struct rcu_head rcu_head;
#ifdef CONFIG_PERF_USE_VMALLOC
struct work_struct work;
#endif
int nr_pages; /* nr of data pages */
int writable; /* are we writable */
- int nr_locked; /* nr pages mlocked */
atomic_t poll; /* POLL_ for wakeups */
struct rcu_head rcu_head;
};
+#define PERF_ATTACH_CONTEXT 0x01
+#define PERF_ATTACH_GROUP 0x02
+
/**
* struct perf_event - performance event kernel representation:
*/
int nr_siblings;
int group_flags;
struct perf_event *group_leader;
- struct perf_event *output;
const struct pmu *pmu;
enum perf_event_active_state state;
+ unsigned int attach_state;
atomic64_t count;
/*
/* mmap bits */
struct mutex mmap_mutex;
atomic_t mmap_count;
+ int mmap_locked;
+ struct user_struct *mmap_user;
struct perf_mmap_data *data;
/* poll related */