diff options
Diffstat (limited to 'fs/coredump.c')
| -rw-r--r-- | fs/coredump.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/fs/coredump.c b/fs/coredump.c index a8f75640ac86..1777331eee76 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -280,23 +280,24 @@ out: return ispipe; } -static int zap_process(struct task_struct *start, int exit_code) +static int zap_process(struct task_struct *start, int exit_code, int flags) { struct task_struct *t; int nr = 0; + /* ignore all signals except SIGKILL, see prepare_signal() */ + start->signal->flags = SIGNAL_GROUP_COREDUMP | flags; start->signal->group_exit_code = exit_code; start->signal->group_stop_count = 0; - t = start; - do { + for_each_thread(start, t) { task_clear_jobctl_pending(t, JOBCTL_PENDING_MASK); if (t != current && t->mm) { sigaddset(&t->pending.signal, SIGKILL); signal_wake_up(t, 1); nr++; } - } while_each_thread(start, t); + } return nr; } @@ -311,10 +312,8 @@ static int zap_threads(struct task_struct *tsk, struct mm_struct *mm, spin_lock_irq(&tsk->sighand->siglock); if (!signal_group_exit(tsk->signal)) { mm->core_state = core_state; - nr = zap_process(tsk, exit_code); tsk->signal->group_exit_task = tsk; - /* ignore all signals except SIGKILL, see prepare_signal() */ - tsk->signal->flags = SIGNAL_GROUP_COREDUMP; + nr = zap_process(tsk, exit_code, 0); clear_tsk_thread_flag(tsk, TIF_SIGPENDING); } spin_unlock_irq(&tsk->sighand->siglock); @@ -360,18 +359,18 @@ static int zap_threads(struct task_struct *tsk, struct mm_struct *mm, continue; if (g->flags & PF_KTHREAD) continue; - p = g; - do { - if (p->mm) { - if (unlikely(p->mm == mm)) { - lock_task_sighand(p, &flags); - nr += zap_process(p, exit_code); - p->signal->flags = SIGNAL_GROUP_EXIT; - unlock_task_sighand(p, &flags); - } - break; + + for_each_thread(g, p) { + if (unlikely(!p->mm)) + continue; + if (unlikely(p->mm == mm)) { + lock_task_sighand(p, &flags); + nr += zap_process(p, exit_code, + SIGNAL_GROUP_EXIT); + unlock_task_sighand(p, &flags); } - } while_each_thread(g, p); + break; + } } rcu_read_unlock(); done: |