Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[linux-2.6-microblaze.git] / kernel / trace / trace.h

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 610d213..34e0c4d 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -19,6 +19,7 @@
 #include <linux/glob.h>
 #include <linux/irq_work.h>
 #include <linux/workqueue.h>
+#include <linux/ctype.h>
 
 #ifdef CONFIG_FTRACE_SYSCALLS
 #include <asm/unistd.h>                /* For NR_SYSCALLS           */
@@ -246,7 +247,7 @@ typedef bool (*cond_update_fn_t)(struct trace_array *tr, void *cond_data);
  * tracing_snapshot_cond(tr, cond_data), the cond_data passed in is
  * passed in turn to the cond_snapshot.update() function.  That data
  * can be compared by the update() implementation with the cond_data
- * contained wihin the struct cond_snapshot instance associated with
+ * contained within the struct cond_snapshot instance associated with
  * the trace_array.  Because the tr->max_lock is held throughout the
  * update() call, the update() function can directly retrieve the
  * cond_snapshot and cond_data associated with the per-instance
@@ -271,7 +272,7 @@ typedef bool (*cond_update_fn_t)(struct trace_array *tr, void *cond_data);
  *     take the snapshot, by returning 'true' if so, 'false' if no
  *     snapshot should be taken.  Because the max_lock is held for
  *     the duration of update(), the implementation is safe to
- *     directly retrieven and save any implementation data it needs
+ *     directly retrieved and save any implementation data it needs
  *     to in association with the snapshot.
  */
 struct cond_snapshot {
@@ -573,7 +574,7 @@ struct tracer {
  *   The function callback, which can use the FTRACE bits to
  *    check for recursion.
  *
- * Now if the arch does not suppport a feature, and it calls
+ * Now if the arch does not support a feature, and it calls
  * the global list function which calls the ftrace callback
  * all three of these steps will do a recursion protection.
  * There's no reason to do one if the previous caller already
@@ -737,7 +738,7 @@ struct dentry *trace_create_file(const char *name,
                                 void *data,
                                 const struct file_operations *fops);
 
-struct dentry *tracing_init_dentry(void);
+int tracing_init_dentry(void);
 
 struct ring_buffer_event;
 
@@ -1125,6 +1126,8 @@ extern int ftrace_is_dead(void);
 int ftrace_create_function_files(struct trace_array *tr,
                                 struct dentry *parent);
 void ftrace_destroy_function_files(struct trace_array *tr);
+int ftrace_allocate_ftrace_ops(struct trace_array *tr);
+void ftrace_free_ftrace_ops(struct trace_array *tr);
 void ftrace_init_global_array_ops(struct trace_array *tr);
 void ftrace_init_array_ops(struct trace_array *tr, ftrace_func_t func);
 void ftrace_reset_array_ops(struct trace_array *tr);
@@ -1146,6 +1149,11 @@ ftrace_create_function_files(struct trace_array *tr,
 {
        return 0;
 }
+static inline int ftrace_allocate_ftrace_ops(struct trace_array *tr)
+{
+       return 0;
+}
+static inline void ftrace_free_ftrace_ops(struct trace_array *tr) { }
 static inline void ftrace_destroy_function_files(struct trace_array *tr) { }
 static inline __init void
 ftrace_init_global_array_ops(struct trace_array *tr) { }
@@ -1472,7 +1480,7 @@ __trace_event_discard_commit(struct trace_buffer *buffer,
 /*
  * Helper function for event_trigger_unlock_commit{_regs}().
  * If there are event triggers attached to this event that requires
- * filtering against its fields, then they wil be called as the
+ * filtering against its fields, then they will be called as the
  * entry already holds the field information of the current event.
  *
  * It also checks if the event should be discarded or not.
@@ -1651,6 +1659,7 @@ extern void trace_event_enable_tgid_record(bool enable);
 extern int event_trace_init(void);
 extern int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr);
 extern int event_trace_del_tracer(struct trace_array *tr);
+extern void __trace_early_add_events(struct trace_array *tr);
 
 extern struct trace_event_file *__find_event_file(struct trace_array *tr,
                                                  const char *system,
@@ -2082,4 +2091,16 @@ static __always_inline void trace_iterator_reset(struct trace_iterator *iter)
        iter->pos = -1;
 }
 
+/* Check the name is good for event/group/fields */
+static inline bool is_good_name(const char *name)
+{
+       if (!isalpha(*name) && *name != '_')
+               return false;
+       while (*++name != '\0') {
+               if (!isalpha(*name) && !isdigit(*name) && *name != '_')
+                       return false;
+       }
+       return true;
+}
+
 #endif /* _LINUX_KERNEL_TRACE_H */