Commit 2ce88dd0 authored Apr 30, 2013 by Eric Paris

audit: do not needlessly take a spinlock in copy_signal



current->signal->audit_* can only change from a netlink message from
current.  Obviously in this case we cannot be handling a netlink message
from current.  So there is no change these can change under us.  No need
to take a lock to read them.

Signed-off-by: Eric Paris <eparis@redhat.com>

parent 46e959ea

drivers/tty/tty_audit.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -134,12 +134,8 @@ void tty_audit_exit(void)
		*/
		void tty_audit_fork(struct signal_struct *sig)
		{
		unsigned long flags;

		spin_lock_irqsave(&current->sighand->siglock, flags);
		sig->audit_tty = current->signal->audit_tty;
		sig->audit_tty_log_passwd = current->signal->audit_tty_log_passwd;
		spin_unlock_irqrestore(&current->sighand->siglock, flags);
		}

		/**