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arm: Use generic init_task

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Same code. Use the generic version. The special Makefile treatment is
pointless anyway as init_task.o contains only data which is handled by
the linker script. So no point on being treated like head text.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Russell King <linux@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/20120503085034.221811388@linutronix.de
This commit is contained in:
Thomas Gleixner 2012-05-03 09:02:50 +00:00
parent 5dced29d71
commit 5290dc2929
4 changed files with 3 additions and 39 deletions
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1
arch/arm/Kconfig
View file

@ -35,6 +35,7 @@ config ARM
select GENERIC_PCI_IOMAP
select HAVE_BPF_JIT if NET
select GENERIC_SMP_IDLE_THREAD
select HAVE_GENERIC_INIT_TASK
help
The ARM series is a line of low-power-consumption RISC chip designs
licensed by ARM Ltd and targeted at embedded applications and

2
arch/arm/Makefile
View file

@ -119,7 +119,7 @@ KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/
CHECKFLAGS += -D__arm__
#Default value
head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
head-y := arch/arm/kernel/head$(MMUEXT).o
textofs-y := 0x00008000
textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
# We don't want the htc bootloader to corrupt kernel during resume

2
arch/arm/kernel/Makefile
View file

@ -81,4 +81,4 @@ head-y := head$(MMUEXT).o
obj-$(CONFIG_DEBUG_LL) += debug.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
extra-y := $(head-y) init_task.o vmlinux.lds
extra-y := $(head-y) vmlinux.lds

37
arch/arm/kernel/init_task.c
View file

@ -1,37 +0,0 @@
/*
* linux/arch/arm/kernel/init_task.c
*/
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/mqueue.h>
#include <linux/uaccess.h>
#include <asm/pgtable.h>
static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
/*
* Initial thread structure.
*
* We need to make sure that this is 8192-byte aligned due to the
* way process stacks are handled. This is done by making sure
* the linker maps this in the .text segment right after head.S,
* and making head.S ensure the proper alignment.
*
* The things we do for performance..
*/
union thread_union init_thread_union __init_task_data =
{ INIT_THREAD_INFO(init_task) };
/*
* Initial task structure.
*
* All other task structs will be allocated on slabs in fork.c
*/
struct task_struct init_task = INIT_TASK(init_task);
EXPORT_SYMBOL(init_task);