1 files changed, 12 insertions, 1 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 1cd7d581b3b2..8b20ab7d3aa2 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1584,7 +1584,7 @@ long do_fork(unsigned long clone_flags,
          * requested, no event is reported; otherwise, report if the event
          * for the type of forking is enabled.
          */
-        if (likely(user_mode(regs)) && !(clone_flags & CLONE_UNTRACED)) {
+        if (!(clone_flags & CLONE_UNTRACED) && likely(user_mode(regs))) {
                 if (clone_flags & CLONE_VFORK)
                         trace = PTRACE_EVENT_VFORK;
                 else if ((clone_flags & CSIGNAL) != SIGCHLD)
@@ -1634,6 +1634,17 @@ long do_fork(unsigned long clone_flags,
         return nr;
 }
 
+#ifdef CONFIG_GENERIC_KERNEL_THREAD
+/*
+ * Create a kernel thread.
+ */
+pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+{
+        return do_fork(flags|CLONE_VM|CLONE_UNTRACED, (unsigned long)fn, NULL,
+                (unsigned long)arg, NULL, NULL);
+}
+#endif
+
 #ifndef ARCH_MIN_MMSTRUCT_ALIGN
 #define ARCH_MIN_MMSTRUCT_ALIGN 0
 #endif