diff options
Diffstat (limited to 'kernel/signal.c')
-rw-r--r-- | kernel/signal.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index c15e9792b088..5341e2141904 100644 --- a/kernel/signal.c +++ b/kernel/signal.c | |||
@@ -2198,10 +2198,25 @@ relock: | |||
2198 | return signr; | 2198 | return signr; |
2199 | } | 2199 | } |
2200 | 2200 | ||
2201 | /* | ||
2202 | * It could be that complete_signal() picked us to notify about the | ||
2203 | * group-wide signal. Another thread should be notified now to take | ||
2204 | * the signal since we will not. | ||
2205 | */ | ||
2206 | static void retarget_shared_pending(struct task_struct *tsk) | ||
2207 | { | ||
2208 | struct task_struct *t; | ||
2209 | |||
2210 | t = tsk; | ||
2211 | while_each_thread(tsk, t) { | ||
2212 | if (!signal_pending(t) && !(t->flags & PF_EXITING)) | ||
2213 | recalc_sigpending_and_wake(t); | ||
2214 | } | ||
2215 | } | ||
2216 | |||
2201 | void exit_signals(struct task_struct *tsk) | 2217 | void exit_signals(struct task_struct *tsk) |
2202 | { | 2218 | { |
2203 | int group_stop = 0; | 2219 | int group_stop = 0; |
2204 | struct task_struct *t; | ||
2205 | 2220 | ||
2206 | if (thread_group_empty(tsk) || signal_group_exit(tsk->signal)) { | 2221 | if (thread_group_empty(tsk) || signal_group_exit(tsk->signal)) { |
2207 | tsk->flags |= PF_EXITING; | 2222 | tsk->flags |= PF_EXITING; |
@@ -2217,14 +2232,7 @@ void exit_signals(struct task_struct *tsk) | |||
2217 | if (!signal_pending(tsk)) | 2232 | if (!signal_pending(tsk)) |
2218 | goto out; | 2233 | goto out; |
2219 | 2234 | ||
2220 | /* | 2235 | retarget_shared_pending(tsk); |
2221 | * It could be that __group_complete_signal() choose us to | ||
2222 | * notify about group-wide signal. Another thread should be | ||
2223 | * woken now to take the signal since we will not. | ||
2224 | */ | ||
2225 | for (t = tsk; (t = next_thread(t)) != tsk; ) | ||
2226 | if (!signal_pending(t) && !(t->flags & PF_EXITING)) | ||
2227 | recalc_sigpending_and_wake(t); | ||
2228 | 2236 | ||
2229 | if (unlikely(tsk->group_stop & GROUP_STOP_PENDING) && | 2237 | if (unlikely(tsk->group_stop & GROUP_STOP_PENDING) && |
2230 | task_participate_group_stop(tsk)) | 2238 | task_participate_group_stop(tsk)) |