powerpc: switch to saner kernel_execve() semantics
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index ba48233..9e685e2 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -746,19 +746,21 @@
sp -= sizeof(struct pt_regs);
childregs = (struct pt_regs *) sp;
if (!regs) {
- /* for kernel thread, set `current' and stackptr in new task */
+ struct thread_info *ti = (void *)task_stack_page(p);
memset(childregs, 0, sizeof(struct pt_regs));
childregs->gpr[1] = sp + sizeof(struct pt_regs);
#ifdef CONFIG_PPC64
childregs->gpr[14] = *(unsigned long *)usp;
childregs->gpr[2] = ((unsigned long *)usp)[1],
clear_tsk_thread_flag(p, TIF_32BIT);
+ childregs->softe = 1;
#else
childregs->gpr[14] = usp; /* function */
childregs->gpr[2] = (unsigned long) p;
#endif
childregs->gpr[15] = arg;
p->thread.regs = NULL; /* no user register state */
+ ti->flags |= _TIF_RESTOREALL;
f = ret_from_kernel_thread;
} else {
CHECK_FULL_REGS(regs);
@@ -1063,15 +1065,6 @@
regs, 0, NULL, NULL);
}
-void __ret_from_kernel_execve(struct pt_regs *normal)
-__noreturn;
-
-void ret_from_kernel_execve(struct pt_regs *normal)
-{
- set_thread_flag(TIF_RESTOREALL);
- __ret_from_kernel_execve(normal);
-}
-
static inline int valid_irq_stack(unsigned long sp, struct task_struct *p,
unsigned long nbytes)
{