1 files changed, 7 insertions, 0 deletions

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 4fd173cd8e57..fccd2c885ba2 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -773,6 +773,13 @@ static void do_signal(struct pt_regs *regs)
         int signr;
         sigset_t *oldset;
 
+#ifdef CONFIG_PREEMPT_RT
+        /*
+         * Fully-preemptible kernel does not need interrupts disabled:
+         */
+        local_irq_enable();
+        preempt_check_resched();
+#endif
         /*
          * We want the common case to go fast, which is why we may in certain
          * cases get here from kernel mode. Just return without doing anything