diff options
| author | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-06-02 12:12:57 -0500 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-06-02 12:12:57 -0500 |
| commit | 7078253c085c037c070ca4e8bc9e9e7f18aa1e84 (patch) | |
| tree | eaf56c1a77b0de6ee82e23cee4433b2c4a47e67e /kernel/signal.c | |
| parent | 259692bd5a2b2c2d351dd90748ba4126bc2a21b9 (diff) | |
| parent | 1e86d1c648508fd50e6c9960576b87906a7906ad (diff) | |
Merge with /home/shaggy/git/linus-clean/
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 8f3debc77c5..b3c24c732c5 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -522,7 +522,16 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask, { int sig = 0; - sig = next_signal(pending, mask); + /* 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); if (sig) { if (current->notifier) { if (sigismember(current->notifier_mask, sig)) { |