From: Al Viro Date: Thu, 12 Jan 2006 09:05:43 +0000 (-0800) Subject: [PATCH] sparc64: task_stack_page() X-Git-Tag: v2.6.16-rc1~262 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ee3eea165e706a3ce8a53693e810403f65239ebb;p=linux-2.6 [PATCH] sparc64: task_stack_page() Signed-off-by: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index 1bc7724770..1dc3650c5c 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -616,11 +616,11 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, unsigned long unused, struct task_struct *p, struct pt_regs *regs) { - struct thread_info *t = p->thread_info; + struct thread_info *t = task_thread_info(p); char *child_trap_frame; /* Calculate offset to stack_frame & pt_regs */ - child_trap_frame = ((char *)t) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ)); + child_trap_frame = task_stack_page(p) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ)); memcpy(child_trap_frame, (((struct sparc_stackf *)regs)-1), (TRACEREG_SZ+STACKFRAME_SZ)); t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) | @@ -845,7 +845,7 @@ unsigned long get_wchan(struct task_struct *task) task->state == TASK_RUNNING) goto out; - thread_info_base = (unsigned long) task->thread_info; + thread_info_base = (unsigned long) task_stack_page(task); bias = STACK_BIAS; fp = task_thread_info(task)->ksp + bias; diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index 5570e7bb22..8d44ae5a15 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -1808,7 +1808,7 @@ static void user_instruction_dump (unsigned int __user *pc) void show_stack(struct task_struct *tsk, unsigned long *_ksp) { unsigned long pc, fp, thread_base, ksp; - struct thread_info *tp = tsk->thread_info; + void *tp = task_stack_page(tsk); struct reg_window *rw; int count = 0; @@ -1862,7 +1862,7 @@ static inline int is_kernel_stack(struct task_struct *task, return 0; } - thread_base = (unsigned long) task->thread_info; + thread_base = (unsigned long) task_stack_page(task); thread_end = thread_base + sizeof(union thread_union); if (rw_addr >= thread_base && rw_addr < thread_end &&