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authorMatthew Wilcox <matthew@wil.cx>2007-12-06 11:13:16 -0500
committerMatthew Wilcox <willy@linux.intel.com>2007-12-06 17:35:28 -0500
commitf021a3c2b14d0dd082c2cee890c204d9e1dee52b (patch)
treeaa37eb6845605de6c69a70ac8cc3b22e2b0170a6 /kernel
parent338077e54e17e656da470a84724b773816207316 (diff)
Add TASK_WAKEKILL
Set TASK_WAKEKILL for TASK_STOPPED and TASK_TRACED, add TASK_KILLABLE and use TASK_WAKEKILL in signal_wake_up() Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/signal.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index c5a401aa715c..fd4797f30628 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -456,15 +456,15 @@ void signal_wake_up(struct task_struct *t, int resume)
456 set_tsk_thread_flag(t, TIF_SIGPENDING); 456 set_tsk_thread_flag(t, TIF_SIGPENDING);
457 457
458 /* 458 /*
459 * For SIGKILL, we want to wake it up in the stopped/traced case. 459 * For SIGKILL, we want to wake it up in the stopped/traced/killable
460 * We don't check t->state here because there is a race with it 460 * case. We don't check t->state here because there is a race with it
461 * executing another processor and just now entering stopped state. 461 * executing another processor and just now entering stopped state.
462 * By using wake_up_state, we ensure the process will wake up and 462 * By using wake_up_state, we ensure the process will wake up and
463 * handle its death signal. 463 * handle its death signal.
464 */ 464 */
465 mask = TASK_INTERRUPTIBLE; 465 mask = TASK_INTERRUPTIBLE;
466 if (resume) 466 if (resume)
467 mask |= TASK_STOPPED | TASK_TRACED; 467 mask |= TASK_WAKEKILL;
468 if (!wake_up_state(t, mask)) 468 if (!wake_up_state(t, mask))
469 kick_process(t); 469 kick_process(t);
470} 470}
@@ -620,7 +620,7 @@ static void handle_stop_signal(int sig, struct task_struct *p)
620 * Wake up the stopped thread _after_ setting 620 * Wake up the stopped thread _after_ setting
621 * TIF_SIGPENDING 621 * TIF_SIGPENDING
622 */ 622 */
623 state = TASK_STOPPED; 623 state = __TASK_STOPPED;
624 if (sig_user_defined(t, SIGCONT) && !sigismember(&t->blocked, SIGCONT)) { 624 if (sig_user_defined(t, SIGCONT) && !sigismember(&t->blocked, SIGCONT)) {
625 set_tsk_thread_flag(t, TIF_SIGPENDING); 625 set_tsk_thread_flag(t, TIF_SIGPENDING);
626 state |= TASK_INTERRUPTIBLE; 626 state |= TASK_INTERRUPTIBLE;