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-rw-r--r--kernel/exit.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 190a4cdcdb4d..9ee229ea97e4 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1140,12 +1140,6 @@ static int eligible_child(pid_t pid, int options, struct task_struct *p)
1140 if (((p->exit_signal != SIGCHLD) ^ ((options & __WCLONE) != 0)) 1140 if (((p->exit_signal != SIGCHLD) ^ ((options & __WCLONE) != 0))
1141 && !(options & __WALL)) 1141 && !(options & __WALL))
1142 return 0; 1142 return 0;
1143 /*
1144 * Do not consider thread group leaders that are
1145 * in a non-empty thread group:
1146 */
1147 if (delay_group_leader(p))
1148 return 2;
1149 1143
1150 err = security_task_wait(p); 1144 err = security_task_wait(p);
1151 if (err) 1145 if (err)
@@ -1497,10 +1491,9 @@ repeat:
1497 tsk = current; 1491 tsk = current;
1498 do { 1492 do {
1499 struct task_struct *p; 1493 struct task_struct *p;
1500 int ret;
1501 1494
1502 list_for_each_entry(p, &tsk->children, sibling) { 1495 list_for_each_entry(p, &tsk->children, sibling) {
1503 ret = eligible_child(pid, options, p); 1496 int ret = eligible_child(pid, options, p);
1504 if (!ret) 1497 if (!ret)
1505 continue; 1498 continue;
1506 1499
@@ -1524,19 +1517,17 @@ repeat:
1524 retval = wait_task_stopped(p, 1517 retval = wait_task_stopped(p,
1525 (options & WNOWAIT), infop, 1518 (options & WNOWAIT), infop,
1526 stat_addr, ru); 1519 stat_addr, ru);
1527 } else if (p->exit_state == EXIT_ZOMBIE) { 1520 } else if (p->exit_state == EXIT_ZOMBIE &&
1521 !delay_group_leader(p)) {
1528 /* 1522 /*
1529 * Eligible but we cannot release it yet: 1523 * We don't reap group leaders with subthreads.
1530 */ 1524 */
1531 if (ret == 2)
1532 goto check_continued;
1533 if (!likely(options & WEXITED)) 1525 if (!likely(options & WEXITED))
1534 continue; 1526 continue;
1535 retval = wait_task_zombie(p, 1527 retval = wait_task_zombie(p,
1536 (options & WNOWAIT), infop, 1528 (options & WNOWAIT), infop,
1537 stat_addr, ru); 1529 stat_addr, ru);
1538 } else if (p->exit_state != EXIT_DEAD) { 1530 } else if (p->exit_state != EXIT_DEAD) {
1539check_continued:
1540 /* 1531 /*
1541 * It's running now, so it might later 1532 * It's running now, so it might later
1542 * exit, stop, or stop and then continue. 1533 * exit, stop, or stop and then continue.