X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Ffork.c;h=ac8100e3088a1f6d99d8ad640a70a3de5ec96e5e;hb=2697c5e1f799f201366d5fd7d25e96a21587f1a9;hp=b3f7a1bb5e5586e31894c83189e5314cfe7b4da1;hpb=d62e54abca1146981fc9f98f85ff398a113a22c2;p=linux-2.6 diff --git a/kernel/fork.c b/kernel/fork.c index b3f7a1bb5e..ac8100e308 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -108,16 +108,12 @@ 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); - if (unlikely(tsk->audit_context)) - audit_free(tsk); security_task_free(tsk); free_uid(tsk->user); put_group_info(tsk->group_info); @@ -182,6 +178,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) atomic_set(&tsk->usage,2); atomic_set(&tsk->fs_excl, 0); tsk->btrace_seq = 0; + tsk->splice_pipe = NULL; return tsk; } @@ -721,7 +718,7 @@ 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) @@ -1206,7 +1203,7 @@ static task_t *copy_process(unsigned long clone_flags, attach_pid(p, PIDTYPE_PGID, process_group(p)); attach_pid(p, PIDTYPE_SID, p->signal->session); - list_add_tail(&p->tasks, &init_task.tasks); + list_add_tail_rcu(&p->tasks, &init_task.tasks); __get_cpu_var(process_counts)++; } attach_pid(p, PIDTYPE_PID, p->pid); @@ -1311,17 +1308,19 @@ 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 +1347,7 @@ 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 +1357,10 @@ 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