From 82914c6a2eb023b820b5903199f032dc3f6021a9 Mon Sep 17 00:00:00 2001
From: Masamichi Takagi <masamichi.takagi@riken.jp>
Date: Mon, 3 Sep 2018 14:02:15 +0900
Subject: [PATCH] remote_page_fault: Retry when interrupted

Change-Id: Ib71a87ad03420e1918dc97da43351cb93e7d0754
---
 executer/kernel/mcctrl/syscall.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/executer/kernel/mcctrl/syscall.c b/executer/kernel/mcctrl/syscall.c
index 78b65300..684d0ecb 100644
--- a/executer/kernel/mcctrl/syscall.c
+++ b/executer/kernel/mcctrl/syscall.c
@@ -542,7 +542,13 @@ retry_alloc:
 				__FUNCTION__, task_pid_vnr(current), fault_addr);
 		/* wait for response */
 		error = wait_event_interruptible(wqhln->wq_syscall, wqhln->req);
-		
+
+		/* Delay signal handling */
+		if (error == -ERESTARTSYS) {
+			printk("%s: INFO: interrupted by signal\n", __FUNCTION__);
+			continue;
+		}
+
 		/* Remove per-thread wait queue head */
 		irqflags = ihk_ikc_spinlock_lock(&ppd->wq_list_lock);
 		list_del(&wqhln->list);