Ensure scratch operations happen on master core.

Change-Id: I970d645108de041d410599847edce877cb794015
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/275
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: A. Patrick Williams III <iawillia@us.ibm.com>

1 files changed, 12 insertions, 7 deletions

diff --git a/src/lib/syscall_task.C b/src/lib/syscall_task.C
index d986d5374..2e28afd0e 100644
--- a/src/lib/syscall_task.C
+++ b/src/lib/syscall_task.C
@@ -70,9 +70,9 @@ tid_t task_exec(const char* file, void* ptr)
 {
     // The VFS process is responsible for finding the module and creating the
     // new process.  So, we send a message over to that process.
-    
-    tid_t child = -1; 
-    
+
+    tid_t child = -1;
+
     // Create message, send.
     msg_q_t vfsQ = (msg_q_t)_syscall0(MSGQ_RESOLVE_ROOT);
     msg_t* msg = msg_allocate();
@@ -83,14 +83,14 @@ tid_t task_exec(const char* file, void* ptr)
 
     if (0 == rc)
     {
-	// Get child ID from message data 0.
-	child = (tid_t) msg->data[0];
+        // Get child ID from message data 0.
+        child = (tid_t) msg->data[0];
     }
     else
     {
-	child = rc;
+        child = rc;
     }
-    
+
     msg_free(msg);
     return child;
 }
@@ -114,3 +114,8 @@ void task_affinity_unpin()
     // Decrement pin count.
     __sync_sub_and_fetch(&task->affinity_pinned, 1);
 }
+
+void task_affinity_migrate_to_master()
+{
+    _syscall0(TASK_MIGRATE_TO_MASTER);
+}