fork.c (a0fa1dd3cdbccec9597fe53b6177a9aa6e20f2f8) fork.c (0c740d0afc3bff0a097ad03a1c8df92757516f5c)
1/*
2 * linux/kernel/fork.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 */
6
7/*
8 * 'fork.c' contains the help-routines for the 'fork' system call

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1030 sig = kmem_cache_zalloc(signal_cachep, GFP_KERNEL);
1031 tsk->signal = sig;
1032 if (!sig)
1033 return -ENOMEM;
1034
1035 sig->nr_threads = 1;
1036 atomic_set(&sig->live, 1);
1037 atomic_set(&sig->sigcnt, 1);
1/*
2 * linux/kernel/fork.c
3 *
4 * Copyright (C) 1991, 1992 Linus Torvalds
5 */
6
7/*
8 * 'fork.c' contains the help-routines for the 'fork' system call

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1030 sig = kmem_cache_zalloc(signal_cachep, GFP_KERNEL);
1031 tsk->signal = sig;
1032 if (!sig)
1033 return -ENOMEM;
1034
1035 sig->nr_threads = 1;
1036 atomic_set(&sig->live, 1);
1037 atomic_set(&sig->sigcnt, 1);
1038
1039 /* list_add(thread_node, thread_head) without INIT_LIST_HEAD() */
1040 sig->thread_head = (struct list_head)LIST_HEAD_INIT(tsk->thread_node);
1041 tsk->thread_node = (struct list_head)LIST_HEAD_INIT(sig->thread_head);
1042
1038 init_waitqueue_head(&sig->wait_chldexit);
1039 sig->curr_target = tsk;
1040 init_sigpending(&sig->shared_pending);
1041 INIT_LIST_HEAD(&sig->posix_timers);
1042
1043 hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
1044 sig->real_timer.function = it_real_fn;
1045

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1469 attach_pid(p, PIDTYPE_SID);
1470 __this_cpu_inc(process_counts);
1471 } else {
1472 current->signal->nr_threads++;
1473 atomic_inc(&current->signal->live);
1474 atomic_inc(&current->signal->sigcnt);
1475 list_add_tail_rcu(&p->thread_group,
1476 &p->group_leader->thread_group);
1043 init_waitqueue_head(&sig->wait_chldexit);
1044 sig->curr_target = tsk;
1045 init_sigpending(&sig->shared_pending);
1046 INIT_LIST_HEAD(&sig->posix_timers);
1047
1048 hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
1049 sig->real_timer.function = it_real_fn;
1050

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1474 attach_pid(p, PIDTYPE_SID);
1475 __this_cpu_inc(process_counts);
1476 } else {
1477 current->signal->nr_threads++;
1478 atomic_inc(&current->signal->live);
1479 atomic_inc(&current->signal->sigcnt);
1480 list_add_tail_rcu(&p->thread_group,
1481 &p->group_leader->thread_group);
1482 list_add_tail_rcu(&p->thread_node,
1483 &p->signal->thread_head);
1477 }
1478 attach_pid(p, PIDTYPE_PID);
1479 nr_threads++;
1480 }
1481
1482 total_forks++;
1483 spin_unlock(&current->sighand->siglock);
1484 write_unlock_irq(&tasklist_lock);

--- 450 unchanged lines hidden --- 		1484 }
1485 attach_pid(p, PIDTYPE_PID);
1486 nr_threads++;
1487 }
1488
1489 total_forks++;
1490 spin_unlock(&current->sighand->siglock);
1491 write_unlock_irq(&tasklist_lock);

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