commit ab75819d3942a34d151a34fd43f346d5d8a48148
author Al Viro <viro@zeniv.linux.org.uk> Sun Oct 21 22:33:39 2012 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Sun Oct 21 22:33:39 2012 -0400
tree 60352be9c9af301e7a29567c8915490e48641957
parent ea516b11545afa5b1420621981c1411a62bef87e

powerpc: make fork_idle() take the common "kernel thread" path in copy_thread()

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

arch/powerpc/kernel/process.c

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3665d28..f6d244d 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -745,7 +745,7 @@
 	/* Copy registers */
 	sp -= sizeof(struct pt_regs);
 	childregs = (struct pt_regs *) sp;
-	if (!regs) {
+	if (unlikely(p->flags & PF_KTHREAD)) {
 		struct thread_info *ti = (void *)task_stack_page(p);
 		memset(childregs, 0, sizeof(struct pt_regs));
 		childregs->gpr[1] = sp + sizeof(struct pt_regs);