diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index b3f7a1bb5e5..3384eb89cb1 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -108,10 +108,8 @@ void free_task(struct task_struct *tsk) } EXPORT_SYMBOL(free_task); -void __put_task_struct_cb(struct rcu_head *rhp) +void __put_task_struct(struct task_struct *tsk) { - struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); - WARN_ON(!(tsk->exit_state & (EXIT_DEAD | EXIT_ZOMBIE))); WARN_ON(atomic_read(&tsk->usage)); WARN_ON(tsk == current); @@ -126,6 +124,12 @@ void __put_task_struct_cb(struct rcu_head *rhp) free_task(tsk); } +void __put_task_struct_cb(struct rcu_head *rhp) +{ + struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); + __put_task_struct(tsk); +} + void __init fork_init(unsigned long mempages) { #ifndef __HAVE_ARCH_TASK_STRUCT_ALLOCATOR @@ -721,7 +725,7 @@ out_release: free_fdset (new_fdt->open_fds, new_fdt->max_fdset); free_fd_array(new_fdt->fd, new_fdt->max_fds); kmem_cache_free(files_cachep, newf); - goto out; + return NULL; } static int copy_files(unsigned long clone_flags, struct task_struct * tsk) @@ -1311,17 +1315,19 @@ long do_fork(unsigned long clone_flags, { struct task_struct *p; int trace = 0; - long pid = alloc_pidmap(); + struct pid *pid = alloc_pid(); + long nr; - if (pid < 0) + if (!pid) return -EAGAIN; + nr = pid->nr; if (unlikely(current->ptrace)) { trace = fork_traceflag (clone_flags); if (trace) clone_flags |= CLONE_PTRACE; } - p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, pid); + p = copy_process(clone_flags, stack_start, regs, stack_size, parent_tidptr, child_tidptr, nr); /* * Do this prior waking up the new thread - the thread pointer * might get invalid after that point, if the thread exits quickly. @@ -1348,7 +1354,7 @@ long do_fork(unsigned long clone_flags, p->state = TASK_STOPPED; if (unlikely (trace)) { - current->ptrace_message = pid; + current->ptrace_message = nr; ptrace_notify ((trace << 8) | SIGTRAP); } @@ -1358,10 +1364,10 @@ long do_fork(unsigned long clone_flags, ptrace_notify ((PTRACE_EVENT_VFORK_DONE << 8) | SIGTRAP); } } else { - free_pidmap(pid); - pid = PTR_ERR(p); + free_pid(pid); + nr = PTR_ERR(p); } - return pid; + return nr; } #ifndef ARCH_MIN_MMSTRUCT_ALIGN |