From: Al Viro <viro@ftp.linux.org.uk>
Date: Thu, 12 Jan 2006 09:05:53 +0000 (-0800)
Subject: [PATCH] m68k: task_stack_page()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=768595ffba46b101ad54d8775e640fecbe470d9a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] m68k: 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/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 13d109328a42..3f9cb55d0356 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -238,10 +238,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 {
 	struct pt_regs * childregs;
 	struct switch_stack * childstack, *stack;
-	unsigned long stack_offset, *retp;
+	unsigned long *retp;
 
-	stack_offset = THREAD_SIZE - sizeof(struct pt_regs);
-	childregs = (struct pt_regs *) ((unsigned long) (p->thread_info) + stack_offset);
+	childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1;
 
 	*childregs = *regs;
 	childregs->d0 = 0;
@@ -386,7 +385,7 @@ unsigned long get_wchan(struct task_struct *p)
 	if (!p || p == current || p->state == TASK_RUNNING)
 		return 0;
 
-	stack_page = (unsigned long)(p->thread_info);
+	stack_page = (unsigned long)task_stack_page(p);
 	fp = ((struct switch_stack *)p->thread.ksp)->a6;
 	do {
 		if (fp < stack_page+sizeof(struct thread_info) ||