ARM: 6868/1: Preserve the VFP state during fork

[pandora-kernel.git] / arch / arm / vfp / vfpmodule.c

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 1c88bbd..f746950 100644 (file)
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -78,6 +78,14 @@ static void vfp_thread_exit(struct thread_info *thread)
        put_cpu();
 }
 
+static void vfp_thread_copy(struct thread_info *thread)
+{
+       struct thread_info *parent = current_thread_info();
+
+       vfp_sync_hwstate(parent);
+       thread->vfpstate = parent->vfpstate;
+}
+
 /*
  * When this function is called with the following 'cmd's, the following
  * is true while this function is being run:
@@ -148,6 +156,10 @@ static int vfp_notifier(struct notifier_block *self, unsigned long cmd, void *v)
        case THREAD_NOTIFY_EXIT:
                vfp_thread_exit(thread);
                break;
+
+       case THREAD_NOTIFY_COPY:
+               vfp_thread_copy(thread);
+               break;
        }
 
        return NOTIFY_DONE;