---

yaml --- r: 147349 b: refs/heads/master c: 8740f94 h: refs/heads/master i: 147347: 6e11591 v: v3
git-mirror · Apr 8, 2009 · cef020a · cef020a
1 parent 37e11d8
commit cef020a
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 808382b33bb4c60df6379ec2db39f332cc56b82a
+refs/heads/master: 8740f9418c78dcad694b46ab25d1645d5aef1f5e
diff --git a/trunk/include/linux/perf_counter.h b/trunk/include/linux/perf_counter.h
@@ -344,10 +344,12 @@ struct file;
 
 struct perf_mmap_data {
 	struct rcu_head			rcu_head;
-	int				nr_pages;
-	atomic_t			wakeup;
-	atomic_t			head;
-	atomic_t			events;
+	int				nr_pages;	/* nr of data pages  */
+
+	atomic_t			wakeup;		/* POLL_ for wakeups */
+	atomic_t			head;		/* write position    */
+	atomic_t			events;		/* event limit       */
+
 	struct perf_counter_mmap_page   *user_page;
 	void 				*data_pages[0];
 };