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audit: do not needlessly take a spinlock in copy_signal

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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>
This commit is contained in:
Eric Paris 2013-04-30 10:43:10 -04:00
parent 46e959ea29
commit 2ce88dd042
1 changed files with 0 additions and 4 deletions
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4
drivers/tty/tty_audit.c
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@ -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);
}
/**