[PATCH] arm: task_stack_page()
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>
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index ac6ed95..4b4e4cf 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -460,7 +460,7 @@
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 {
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 373c095..7338948 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -114,7 +114,7 @@
* 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 @@
__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 */
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index c1a04ec..93cfd3f 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -210,7 +210,7 @@
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);
}
diff --git a/include/asm-arm/processor.h b/include/asm-arm/processor.h
index fb5877e..3129069 100644
--- a/include/asm-arm/processor.h
+++ b/include/asm-arm/processor.h
@@ -86,7 +86,7 @@
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
