0125-init-wait-for-partition-and-retry-scan.patch

From d04a77f51ea91d26cda43e0429e650e636177402 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Wed, 17 May 2017 01:52:11 +0000
Subject: [PATCH 125/126] init: wait for partition and retry scan

As Clear Linux boots fast the device is not ready when
the mounting code is reached, so a retry device scan will
be performed every 0.5 sec for at least 40 sec
and synchronize the async task.

Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
---
 init/do_mounts.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index 9fd3875897df..5bf8e61fd1c7 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -213,11 +213,19 @@ dev_t name_to_dev_t(const char *name)
 	char *p;
 	dev_t res = 0;
 	int part;
+	/* we will wait at least 40 sec */
+	int needtowait = 40<<1;
 
 #ifdef CONFIG_BLOCK
 	if (strncmp(name, "PARTUUID=", 9) == 0) {
 		name += 9;
 		res = devt_from_partuuid(name);
+		while (!res && needtowait) {
+			/* waiting 0.5 sec */
+			msleep(500);
+			res = devt_from_partuuid(name);
+			needtowait--;
+		}
 		if (!res)
 			goto fail;
 		goto done;
@@ -564,7 +572,9 @@ void __init prepare_namespace(void)
 	 * For example, it is not atypical to wait 5 seconds here
 	 * for the touchpad of a laptop to initialize.
 	 */
+	async_synchronize_full();
 	wait_for_device_probe();
+	async_synchronize_full();
 
 	md_run_setup();
 
-- 
2.15.0