diff options
| author | Linus Torvalds <torvalds@home.transmeta.com> | 2003-02-10 19:05:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2003-02-10 19:05:34 -0800 |
| commit | 83586a3d2e6b9eb24cce5b9ac20d81e1aff17370 (patch) | |
| tree | 1844e5e06aaff39fd81616b48cf10ee5cd36f3cf | |
| parent | 7b8886d32fda0f949e623ec58b79dd5bf43bda85 (diff) | |
If we set TIF_SIGPENDING for SIGCONT, we have to wake up any sleeping
tasks (even if we don't otherwise need to wake anything up), since
otherwise later signals would see that signals are already pending and
wouldn't cause wakeups.
| -rw-r--r-- | kernel/signal.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index a4d6618f77d0..b43102e63a8d 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -619,6 +619,7 @@ static void handle_stop_signal(int sig, struct task_struct *p) rm_from_queue(SIG_KERNEL_STOP_MASK, &p->signal->shared_pending); t = p; do { + unsigned int state; rm_from_queue(SIG_KERNEL_STOP_MASK, &t->pending); /* @@ -635,9 +636,12 @@ static void handle_stop_signal(int sig, struct task_struct *p) * Wake up the stopped thread _after_ setting * TIF_SIGPENDING */ - if (!sigismember(&t->blocked, SIGCONT)) + state = TASK_STOPPED; + if (!sigismember(&t->blocked, SIGCONT)) { set_tsk_thread_flag(t, TIF_SIGPENDING); - wake_up_state(t, TASK_STOPPED); + state |= TASK_INTERRUPTIBLE; + } + wake_up_state(t, state); t = next_thread(t); } while (t != p); |