1 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 3529446c2abd..8302af649219 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -194,6 +194,14 @@ static ssize_t show_dscr_default(struct device *dev,
         return sprintf(buf, "%lx\n", dscr_default);
 }
 
+static void update_dscr(void *dummy)
+{
+        if (!current->thread.dscr_inherit) {
+                current->thread.dscr = dscr_default;
+                mtspr(SPRN_DSCR, dscr_default);
+        }
+}
+
 static ssize_t __used store_dscr_default(struct device *dev,
                 struct device_attribute *attr, const char *buf,
                 size_t count)
@@ -206,6 +214,8 @@ static ssize_t __used store_dscr_default(struct device *dev,
                 return -EINVAL;
         dscr_default = val;
 
+        on_each_cpu(update_dscr, NULL, 1);
+
         return count;
 }