Eric W. Biederman wrote:
Just a few typos in comments.
@@ -17,6 +17,8 @@ struct pid
struct hlist_node pid_chain;
/* list of pids with the same nr, only one of them is in the hash */
struct list_head pid_list;
+ /* Does a weak references of this type exsit to the task struct? */
+ struct task_ref *ref;
exsit -> exist
+/* Note to read a usable value task value from struct task_ref
+ * the tasklist_lock must be held. The atomic property of single
+ * word reads will keep any vaule you read consistent but it doesn't
vaule -> value
+ * protect you from the race of the task exiting on another cpu and
+ * having it's task_struct freed or reused. Holding the tasklist_lock
+ * prevents the task from going away as you derference the task pointer.
derference -> dereference
-- Suleiman
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