Merge tag 'v3.15-rc6' into sched/core, to pick up the latest fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 819dd5f7eb05..29b82adbf0b4 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -614,11 +614,13 @@ resume_user_mode_begin:
 
 resume_kernel_mode:
 
-#ifdef CONFIG_PREEMPT
-
-        ; This is a must for preempt_schedule_irq()
+        ; Disable Interrupts from this point on
+        ; CONFIG_PREEMPT: This is a must for preempt_schedule_irq()
+        ; !CONFIG_PREEMPT: To ensure restore_regs is intr safe
         IRQ_DISABLE     r9
 
+#ifdef CONFIG_PREEMPT
+
         ; Can't preempt if preemption disabled
         GET_CURR_THR_INFO_FROM_SP   r10
         ld  r8, [r10, THREAD_INFO_PREEMPT_COUNT]