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Subject[PATCH 34/50] arm: task_stack_page()
From
Date
References: <20060103210515.5135@ftp.linux.org.uk>
In-Reply-To: <20060103210515.5135@ftp.linux.org.uk>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

---

arch/arm/kernel/process.c | 2 +-
arch/arm/kernel/smp.c | 4 ++--
arch/arm/kernel/traps.c | 2 +-
include/asm-arm/processor.h | 2 +-
4 files changed, 5 insertions(+), 5 deletions(-)

00591c95d853894b7020b5d4a67a7a0e2e83eb00
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 8c62909..1be78b0 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -461,7 +461,7 @@ unsigned long get_wchan(struct task_stru
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 @@ 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 */

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index f7e733c..496bf7c 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -211,7 +211,7 @@ static void __die(const char *str, int e

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 @@ unsigned long get_wchan(struct task_stru
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
--
0.99.9.GIT
-
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