diff options
Diffstat (limited to 'arch/mn10300/kernel/process.c')
| -rw-r--r-- | arch/mn10300/kernel/process.c | 33 |
1 files changed, 5 insertions, 28 deletions
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index d0c671b6d9f..eb09f5a552f 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -206,7 +206,7 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) */ int copy_thread(unsigned long clone_flags, unsigned long c_usp, unsigned long ustk_size, - struct task_struct *p, struct pt_regs *kregs) + struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct pt_regs *c_regs; @@ -227,7 +227,7 @@ int copy_thread(unsigned long clone_flags, p->thread.wchan = p->thread.pc; p->thread.usp = c_usp; - if (unlikely(!kregs)) { + if (unlikely(p->flags & PF_KTHREAD)) { memset(c_regs, 0, sizeof(struct pt_regs)); c_regs->a0 = c_usp; /* function */ c_regs->d0 = ustk_size; /* argument */ @@ -236,8 +236,9 @@ int copy_thread(unsigned long clone_flags, p->thread.pc = (unsigned long) ret_from_kernel_thread; return 0; } - *c_regs = *kregs; - c_regs->sp = c_usp; + *c_regs = *current_pt_regs(); + if (c_usp) + c_regs->sp = c_usp; c_regs->epsw &= ~EPSW_FE; /* my FPU */ /* the new TLS pointer is passed in as arg #5 to sys_clone() */ @@ -249,30 +250,6 @@ int copy_thread(unsigned long clone_flags, return 0; } -/* - * clone a process - * - tlsptr is retrieved by copy_thread() from current_frame()->d3 - */ -asmlinkage long sys_clone(unsigned long clone_flags, unsigned long newsp, - int __user *parent_tidptr, int __user *child_tidptr, - int __user *tlsptr) -{ - return do_fork(clone_flags, newsp ?: current_frame()->sp, - current_frame(), 0, parent_tidptr, child_tidptr); -} - -asmlinkage long sys_fork(void) -{ - return do_fork(SIGCHLD, current_frame()->sp, - current_frame(), 0, NULL, NULL); -} - -asmlinkage long sys_vfork(void) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, current_frame()->sp, - current_frame(), 0, NULL, NULL); -} - unsigned long get_wchan(struct task_struct *p) { return p->thread.wchan; |