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-rw-r--r--arch/um/kernel/process.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index ccb9a9d..c5f5afa 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -151,12 +151,10 @@ void new_thread_handler(void)
* 0 if it just exits
*/
n = run_kernel_thread(fn, arg, &current->thread.exec_buf);
- if (n == 1) {
- /* Handle any immediate reschedules or signals */
- interrupt_end();
+ if (n == 1)
userspace(&current->thread.regs.regs);
- }
- else do_exit(0);
+ else
+ do_exit(0);
}
/* Called magically, see new_thread_handler above */
@@ -175,9 +173,6 @@ void fork_handler(void)
current->thread.prev_sched = NULL;
- /* Handle any immediate reschedules or signals */
- interrupt_end();
-
userspace(&current->thread.regs.regs);
}
@@ -186,22 +181,22 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
struct pt_regs *regs)
{
void (*handler)(void);
+ int kthread = current->flags & PF_KTHREAD;
int ret = 0;
p->thread = (struct thread_struct) INIT_THREAD;
- if (current->thread.forking) {
+ if (!kthread) {
memcpy(&p->thread.regs.regs, &regs->regs,
sizeof(p->thread.regs.regs));
- UPT_SET_SYSCALL_RETURN(&p->thread.regs.regs, 0);
+ PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0);
if (sp != 0)
REGS_SP(p->thread.regs.regs.gp) = sp;
handler = fork_handler;
arch_copy_thread(&current->thread.arch, &p->thread.arch);
- }
- else {
+ } else {
get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp);
p->thread.request.u.thread = current->thread.request.u.thread;
handler = new_thread_handler;
@@ -209,7 +204,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
new_thread(task_stack_page(p), &p->thread.switch_buf, handler);
- if (current->thread.forking) {
+ if (!kthread) {
clear_flushed_tls(p);
/*