tree 5e536389e23d6c00fc93e51a4e4b90cfeac3fbc6
parent 14d8c9f3c09e7fd7b9af80904289fe204f5b93c6
author Thomas Gleixner <tglx@linutronix.de> 1260406401 +0000
committer Thomas Gleixner <tglx@linutronix.de> 1260482651 +0100

signals: Fix more rcu assumptions

1) Remove the misleading comment in __sigqueue_alloc() which claims
   that holding a spinlock is equivalent to rcu_read_lock().

2) Add a rcu_read_lock/unlock around the __task_cred() access
   in __sigqueue_alloc()

This needs to be revisited to remove the remaining users of
read_lock(&tasklist_lock) but that's outside the scope of this patch.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
LKML-Reference: <20091210004703.269843657@linutronix.de>