sorry, this rcu_read_lock() should be inserted.
-Kame
fs/proc/base.c | 2 ++
1 files changed, 2 insertions(+)
Index: linux-2.6.18-rc4/fs/proc/base.c
===================================================================
--- linux-2.6.18-rc4.orig/fs/proc/base.c
+++ linux-2.6.18-rc4/fs/proc/base.c
@@ -2240,12 +2240,14 @@ retry:
* insertion of token should be done just before not-stale task.
*/
if (task) {
+ rcu_read_lock();
pos = first_alive_task(task);
if (pos != task) { /* task is not alive */
if (pos)
get_task_struct(pos);
put_task_struct(task);
}
+ rcu_read_unlock();
if (pos) { /* remember here for next access */
/* token->token turns to be 1 */
insert_list_token_rcu(token, &pos->tasks);
-
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