1 files changed, 22 insertions, 15 deletions

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 3fd5c82e0e1..5d0266d9498 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -485,6 +485,7 @@ struct perf_guest_info_callbacks {
 #include <linux/ftrace.h>
 #include <linux/cpu.h>
 #include <asm/atomic.h>
+#include <asm/local.h>
 
 #define PERF_MAX_STACK_DEPTH            255
 
@@ -584,24 +585,22 @@ enum perf_event_active_state {
 struct file;
 
 struct perf_mmap_data {
+        atomic_t                        refcount;
         struct rcu_head                 rcu_head;
 #ifdef CONFIG_PERF_USE_VMALLOC
         struct work_struct              work;
+        int                             page_order;     /* allocation order  */
 #endif
-        int                             data_order;
         int                             nr_pages;       /* nr of data pages  */
         int                             writable;       /* are we writable   */
-        int                             nr_locked;      /* nr pages mlocked  */
 
         atomic_t                        poll;           /* POLL_ for wakeups */
-        atomic_t                        events;         /* event_id limit       */
-
-        atomic_long_t                   head;           /* write position    */
-        atomic_long_t                   done_head;      /* completed head    */
 
-        atomic_t                        lock;           /* concurrent writes */
-        atomic_t                        wakeup;         /* needs a wakeup    */
-        atomic_t                        lost;           /* nr records lost   */
+        local_t                         head;           /* write position    */
+        local_t                         nest;           /* nested writers    */
+        local_t                         events;         /* event limit       */
+        local_t                         wakeup;         /* wakeup stamp      */
+        local_t                         lost;           /* nr records lost   */
 
         long                            watermark;      /* wakeup watermark  */
 
@@ -632,6 +631,9 @@ struct swevent_hlist {
         struct rcu_head         rcu_head;
 };
 
+#define PERF_ATTACH_CONTEXT     0x01
+#define PERF_ATTACH_GROUP       0x02
+
 /**
  * struct perf_event - performance event kernel representation:
  */
@@ -644,10 +646,10 @@ struct perf_event {
         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;
 
         /*
@@ -705,6 +707,8 @@ struct perf_event {
         /* 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 */
@@ -728,6 +732,7 @@ struct perf_event {
         perf_overflow_handler_t         overflow_handler;
 
 #ifdef CONFIG_EVENT_TRACING
+        struct ftrace_event_call        *tp_event;
         struct event_filter             *filter;
 #endif
 
@@ -803,11 +808,12 @@ struct perf_cpu_context {
 struct perf_output_handle {
         struct perf_event               *event;
         struct perf_mmap_data           *data;
-        unsigned long                   head;
-        unsigned long                   offset;
+        unsigned long                   wakeup;
+        unsigned long                   size;
+        void                            *addr;
+        int                             page;
         int                             nmi;
         int                             sample;
-        int                             locked;
 };
 
 #ifdef CONFIG_PERF_EVENTS
@@ -993,8 +999,9 @@ static inline bool perf_paranoid_kernel(void)
 }
 
 extern void perf_event_init(void);
-extern void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
-                          int entry_size, struct pt_regs *regs);
+extern void perf_tp_event(u64 addr, u64 count, void *record,
+                          int entry_size, struct pt_regs *regs,
+                          struct hlist_head *head);
 extern void perf_bp_event(struct perf_event *event, void *data);
 
 #ifndef perf_misc_flags