diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 5dd3979747f..49530e40ea8 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -875,6 +875,7 @@ static inline int copy_signal(unsigned long clone_flags, struct task_struct * ts sig->utime = sig->stime = sig->cutime = sig->cstime = cputime_zero; sig->nvcsw = sig->nivcsw = sig->cnvcsw = sig->cnivcsw = 0; sig->min_flt = sig->maj_flt = sig->cmin_flt = sig->cmaj_flt = 0; + sig->inblock = sig->oublock = sig->cinblock = sig->coublock = 0; sig->sched_time = 0; INIT_LIST_HEAD(&sig->cpu_timers[0]); INIT_LIST_HEAD(&sig->cpu_timers[1]); @@ -955,7 +956,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, unsigned long stack_size, int __user *parent_tidptr, int __user *child_tidptr, - int pid) + struct pid *pid) { int retval; struct task_struct *p = NULL; @@ -1022,7 +1023,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->did_exec = 0; delayacct_tsk_init(p); /* Must remain after dup_task_struct() */ copy_flags(clone_flags, p); - p->pid = pid; + p->pid = pid_nr(pid); retval = -EFAULT; if (clone_flags & CLONE_PARENT_SETTID) if (put_user(p->pid, parent_tidptr)) @@ -1251,13 +1252,13 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->signal->tty = current->signal->tty; p->signal->pgrp = process_group(current); set_signal_session(p->signal, process_session(current)); - attach_pid(p, PIDTYPE_PGID, process_group(p)); - attach_pid(p, PIDTYPE_SID, process_session(p)); + attach_pid(p, PIDTYPE_PGID, task_pgrp(current)); + attach_pid(p, PIDTYPE_SID, task_session(current)); list_add_tail_rcu(&p->tasks, &init_task.tasks); __get_cpu_var(process_counts)++; } - attach_pid(p, PIDTYPE_PID, p->pid); + attach_pid(p, PIDTYPE_PID, pid); nr_threads++; } @@ -1321,7 +1322,8 @@ struct task_struct * __cpuinit fork_idle(int cpu) struct task_struct *task; struct pt_regs regs; - task = copy_process(CLONE_VM, 0, idle_regs(®s), 0, NULL, NULL, 0); + task = copy_process(CLONE_VM, 0, idle_regs(®s), 0, NULL, NULL, + &init_struct_pid); if (!IS_ERR(task)) init_idle(task, cpu); @@ -1371,7 +1373,7 @@ long do_fork(unsigned long clone_flags, clone_flags |= CLONE_PTRACE; } - p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, nr); + p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, pid); /* * Do this prior waking up the new thread - the thread pointer * might get invalid after that point, if the thread exits quickly. @@ -1420,12 +1422,15 @@ long do_fork(unsigned long clone_flags, #define ARCH_MIN_MMSTRUCT_ALIGN 0 #endif -static void sighand_ctor(void *data, struct kmem_cache *cachep, unsigned long flags) +static void sighand_ctor(void *data, struct kmem_cache *cachep, + unsigned long flags) { struct sighand_struct *sighand = data; - if (flags & SLAB_CTOR_CONSTRUCTOR) + if (flags & SLAB_CTOR_CONSTRUCTOR) { spin_lock_init(&sighand->siglock); + INIT_LIST_HEAD(&sighand->signalfd_list); + } } void __init proc_caches_init(void) @@ -1451,7 +1456,6 @@ void __init proc_caches_init(void) SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL); } - /* * Check constraints on flags passed to the unshare system call and * force unsharing of additional process context as appropriate. |