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[PATCH] arm: task_stack_page()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Al Viro 2006-01-12 01:05:58 -08:00 committed by Linus Torvalds
parent 5520582392
commit 32d39a9355
4 changed files with 5 additions and 5 deletions
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2
arch/arm/kernel/process.c
View File

@ -460,7 +460,7 @@ unsigned long get_wchan(struct task_struct *p)
return 0;
stack_start = (unsigned long)end_of_stack(p);
stack_end = ((unsigned long)p->thread_info) + THREAD_SIZE;
stack_end = (unsigned long)task_stack_page(p) + THREAD_SIZE;
fp = thread_saved_fp(p);
do {

4
arch/arm/kernel/smp.c
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@ -114,7 +114,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
* We need to tell the secondary core where to find
* its stack and the page tables.
*/
secondary_data.stack = (void *)idle->thread_info + THREAD_START_SP;
secondary_data.stack = task_stack_page(idle) + THREAD_START_SP;
secondary_data.pgdir = virt_to_phys(pgd);
wmb();
@ -245,7 +245,7 @@ void __cpuexit cpu_die(void)
__asm__("mov sp, %0\n"
" b secondary_start_kernel"
:
: "r" ((void *)current->thread_info + THREAD_SIZE - 8));
: "r" (task_stack_page(current) + THREAD_SIZE - 8));
}
#endif /* CONFIG_HOTPLUG_CPU */

2
arch/arm/kernel/traps.c
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@ -210,7 +210,7 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p
if (!user_mode(regs) || in_interrupt()) {
dump_mem("Stack: ", regs->ARM_sp,
THREAD_SIZE + (unsigned long)tsk->thread_info);
THREAD_SIZE + (unsigned long)task_stack_page(tsk));
dump_backtrace(regs, tsk);
dump_instr(regs);
}

2
include/asm-arm/processor.h
View File

@ -86,7 +86,7 @@ unsigned long get_wchan(struct task_struct *p);
extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
#define task_pt_regs(p) \
((struct pt_regs *)(THREAD_START_SP + (void *)(p)->thread_info) - 1)
((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1)
#define KSTK_EIP(tsk) task_pt_regs(tsk)->ARM_pc
#define KSTK_ESP(tsk) task_pt_regs(tsk)->ARM_sp