diff options
| author | Thomas Gleixner <[email protected]> | 2012-05-03 09:02:48 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2012-05-05 13:00:21 +0200 |
| commit | a4a2eb490e38aaff61eafcb8cde6725ad1be22ab (patch) | |
| tree | cc626df26302e96f3fc7247f3fe895d2eddb69f6 | |
| parent | c6ae063aaf3786b9db7f19a90bf4ed8aaebb7f90 (diff) | |
init_task: Create generic init_task instance
All archs define init_task in the same way (except ia64, but there is
no particular reason why ia64 cannot use the common version). Create a
generic instance so all archs can be converted over.
The config switch is temporary and will be removed when all archs are
converted over.
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Chen Liqin <[email protected]>
Cc: Chris Metcalf <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: David Howells <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Haavard Skinnemoen <[email protected]>
Cc: Hirokazu Takata <[email protected]>
Cc: James E.J. Bottomley <[email protected]>
Cc: Jesper Nilsson <[email protected]>
Cc: Jonas Bonn <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Mike Frysinger <[email protected]>
Cc: Paul Mundt <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Richard Kuo <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Russell King <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/Kconfig | 3 | ||||
| -rw-r--r-- | init/Makefile | 1 | ||||
| -rw-r--r-- | init/init_task.c | 24 | ||||
| -rw-r--r-- | kernel/sched/Makefile | 2 |
4 files changed, 28 insertions, 2 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 4f0d0f7c8313..2dd8fdd7ea9f 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -148,6 +148,9 @@ config USE_GENERIC_SMP_HELPERS config GENERIC_SMP_IDLE_THREAD bool +config HAVE_GENERIC_INIT_TASK + bool + config HAVE_REGS_AND_STACK_ACCESS_API bool help diff --git a/init/Makefile b/init/Makefile index 0bf677aa0872..c55eac955cdc 100644 --- a/init/Makefile +++ b/init/Makefile @@ -9,6 +9,7 @@ else obj-$(CONFIG_BLK_DEV_INITRD) += initramfs.o endif obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o +obj-$(CONFIG_HAVE_GENERIC_INIT_TASK) += init_task.o mounts-y := do_mounts.o mounts-$(CONFIG_BLK_DEV_RAM) += do_mounts_rd.o diff --git a/init/init_task.c b/init/init_task.c new file mode 100644 index 000000000000..8b2f3996b035 --- /dev/null +++ b/init/init_task.c @@ -0,0 +1,24 @@ +#include <linux/init_task.h> +#include <linux/export.h> +#include <linux/mqueue.h> +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/fs.h> +#include <linux/mm.h> + +#include <asm/pgtable.h> +#include <asm/uaccess.h> + +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); + +/* Initial task structure */ +struct task_struct init_task = INIT_TASK(init_task); +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) }; diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile index 9a7dd35102a3..173ea52f3af0 100644 --- a/kernel/sched/Makefile +++ b/kernel/sched/Makefile @@ -16,5 +16,3 @@ obj-$(CONFIG_SMP) += cpupri.o obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o obj-$(CONFIG_SCHEDSTATS) += stats.o obj-$(CONFIG_SCHED_DEBUG) += debug.o - - |