0125-xen-xenbus-don-t-be-slow.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sun, 7 May 2017 00:34:01 +0000
Subject: [PATCH] xen: xenbus: don't be slow

---
 drivers/xen/xenbus/xenbus_probe_frontend.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 480944606a3c..0f0086e69c38 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -199,6 +199,7 @@ static int is_device_connecting(struct device *dev, void *data, bool ignore_none
 	struct xenbus_device *xendev = to_xenbus_device(dev);
 	struct device_driver *drv = data;
 	struct xenbus_driver *xendrv;
+	int ret;
 
 	/*
 	 * A device with no driver will never connect. We care only about
@@ -224,9 +225,13 @@ static int is_device_connecting(struct device *dev, void *data, bool ignore_none
 			return 0;
 	}
 	xendrv = to_xenbus_driver(dev->driver);
-	return (xendev->state < XenbusStateConnected ||
+	ret = (xendev->state < XenbusStateConnected ||
 		(xendev->state == XenbusStateConnected &&
 		 xendrv->is_ready && !xendrv->is_ready(xendev)));
+
+	if (ret)
+		dev_info(dev, " connecting\n");
+	return ret;
 }
 static int essential_device_connecting(struct device *dev, void *data)
 {
@@ -288,7 +293,7 @@ static bool wait_loop(unsigned long start, unsigned int max_delay,
 		}
 	}
 
-	schedule_timeout_interruptible(HZ/10);
+	schedule_timeout_interruptible(1);
 
 	return false;
 }
-- 
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