[PATCH] signal handling: revert sigkill priority fix

This patch reverts commit c33880aadd since
it's not needed anymore. As pointed out by Roland McGrath the real fix
is to deliver all signals before returning to user space.
See http://www.ussg.iu.edu/hypermail/linux/kernel/0509.2/0683.html
A fix for s390 has been merged.

Signed-off-by: Heiko Carstens <[email protected]>
Cc: Roland McGrath <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Linus Torvalds <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Heiko Carstens 2005-11-13 16:07:14 -08:00 • committed by Linus Torvalds
commit b17b0421d7

View file

@ -513,16 +513,7 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
{
int sig = 0;
/* SIGKILL must have priority, otherwise it is quite easy
* to create an unkillable process, sending sig < SIGKILL
* to self */
if (unlikely(sigismember(&pending->signal, SIGKILL))) {
if (!sigismember(mask, SIGKILL))
sig = SIGKILL;
}
if (likely(!sig))
sig = next_signal(pending, mask);
sig = next_signal(pending, mask);
if (sig) {
if (current->notifier) {
if (sigismember(current->notifier_mask, sig)) {