diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 10 | ||||
| -rw-r--r-- | init/init_task.c | 7 |
2 files changed, 15 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig index cc20d7a32112..d7fc22639665 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -26,6 +26,16 @@ config IRQ_WORK config BUILDTIME_EXTABLE_SORT bool +config THREAD_INFO_IN_TASK + bool + help + Select this to move thread_info off the stack into task_struct. To + make this work, an arch will need to remove all thread_info fields + except flags and fix any runtime bugs. + + One subtle change that will be needed is to use try_get_task_stack() + and put_task_stack() in save_thread_stack_tsk() and get_wchan(). + menu "General setup" config BROKEN diff --git a/init/init_task.c b/init/init_task.c index ba0a7f362d9e..11f83be1fa79 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -22,5 +22,8 @@ EXPORT_SYMBOL(init_task); * Initial thread structure. Alignment of this is handled by a special * linker map entry. */ -union thread_union init_thread_union __init_task_data = - { INIT_THREAD_INFO(init_task) }; +union thread_union init_thread_union __init_task_data = { +#ifndef CONFIG_THREAD_INFO_IN_TASK + INIT_THREAD_INFO(init_task) +#endif +}; |