[PATCH 29/50] parisc: task_stack_page(), task_thread_info()

From: Al Viro
Date: Tue Jan 03 2006 - 16:27:10 EST


References: <20060103210515.5135@xxxxxxxxxxxxxxxx>
In-Reply-To: <20060103210515.5135@xxxxxxxxxxxxxxxx>

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

---

arch/parisc/kernel/process.c | 6 +++---
arch/parisc/kernel/smp.c | 2 +-
2 files changed, 4 insertions(+), 4 deletions(-)

4822bcc5fa9991be25482b67fb351f7c3c81ba8c
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index fee4f1f..1273272 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -295,7 +295,7 @@ copy_thread(int nr, unsigned long clone_
struct task_struct * p, struct pt_regs * pregs)
{
struct pt_regs * cregs = &(p->thread.regs);
- struct thread_info *ti = p->thread_info;
+ void *stack = task_stack_page(p);

/* We have to use void * instead of a function pointer, because
* function pointers aren't a pointer to the function on 64-bit.
@@ -322,7 +322,7 @@ copy_thread(int nr, unsigned long clone_
*/
if (usp == 1) {
/* kernel thread */
- cregs->ksp = (((unsigned long)(ti)) + THREAD_SZ_ALGN);
+ cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN;
/* Must exit via ret_from_kernel_thread in order
* to call schedule_tail()
*/
@@ -344,7 +344,7 @@ copy_thread(int nr, unsigned long clone_
*/

/* Use same stack depth as parent */
- cregs->ksp = ((unsigned long)(ti))
+ cregs->ksp = (unsigned long)stack
+ (pregs->gr[21] & (THREAD_SIZE - 1));
cregs->gr[30] = usp;
if (p->personality == PER_HPUX) {
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index ce89da0..471efad 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -519,7 +519,7 @@ int __init smp_boot_one_cpu(int cpuid)
if (IS_ERR(idle))
panic("SMP: fork failed for CPU:%d", cpuid);

- idle->thread_info->cpu = cpuid;
+ task_thread_info(idle)->cpu = cpuid;

/* Let _start know what logical CPU we're booting
** (offset into init_tasks[],cpu_data[])
--
0.99.9.GIT

-
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