diff options
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 19 | ||||
| -rw-r--r-- | init/init_task.c | 7 |
2 files changed, 18 insertions, 8 deletions
diff --git a/init/Kconfig b/init/Kconfig index 69886493ff1e3..34407f15e6d34 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 @@ -1278,6 +1288,7 @@ config SYSFS_DEPRECATED_V2 config RELAY bool "Kernel->user space relay support (formerly relayfs)" + select IRQ_WORK help This option enables support for relay interface support in certain file systems (such as debugfs). @@ -1761,6 +1772,7 @@ choice config SLAB bool "SLAB" + select HAVE_HARDENED_USERCOPY_ALLOCATOR help The regular slab allocator that is established and known to work well in all environments. It organizes cache hot objects in @@ -1768,6 +1780,7 @@ config SLAB config SLUB bool "SLUB (Unqueued Allocator)" + select HAVE_HARDENED_USERCOPY_ALLOCATOR help SLUB is a slab allocator that minimizes cache line usage instead of managing queues of cached objects (SLAB approach). @@ -2106,12 +2119,6 @@ config PADATA depends on SMP bool -# Can be selected by architectures with broken toolchains -# that get confused by correct const<->read_only section -# mappings -config BROKEN_RODATA - bool - config ASN1 tristate help diff --git a/init/init_task.c b/init/init_task.c index ba0a7f362d9e3..11f83be1fa799 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 +}; |