add new kernel features needed by guest

Signed-off-by: Adrian Calianu <adrian.calianu@enea.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/patches/boot_time_opt/0113-init-do_mounts-recreate-dev-root.patch b/patches/boot_time_opt/0113-init-do_mounts-recreate-dev-root.patch
new file mode 100644
index 0000000..047eddb
--- /dev/null
+++ b/patches/boot_time_opt/0113-init-do_mounts-recreate-dev-root.patch
@@ -0,0 +1,42 @@
+From 179b7f41d5509f93cd297cc81c5d8da4a3123d9d Mon Sep 17 00:00:00 2001
+From: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+Date: Fri, 20 Nov 2015 14:01:26 -0600
+Subject: [PATCH 113/114] init: do_mounts: recreate /dev/root
+
+Rootfs shows as is mounted in /dev/root, but this devices is not present in
+/dev directory.
+
+Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
+---
+ init/do_mounts.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/init/do_mounts.c b/init/do_mounts.c
+index 40725f0f5fb3..78b5b1dba8ca 100644
+--- a/init/do_mounts.c
++++ b/init/do_mounts.c
+@@ -550,6 +550,7 @@ void __init mount_root(void)
+ void __init prepare_namespace(void)
+ {
+        int is_floppy;
++       int err;
+ 
+        if (root_delay) {
+                printk(KERN_INFO "Waiting %d sec before mounting root device...\n",
+@@ -604,6 +605,13 @@ void __init prepare_namespace(void)
+        devtmpfs_mount("dev");
+        sys_mount(".", "/", NULL, MS_MOVE, NULL);
+        sys_chroot(".");
++#ifdef CONFIG_BLOCK
++       /* recreate the /dev/root */
++       err = create_dev("/dev/root", ROOT_DEV);
++
++       if (err < 0)
++               pr_emerg("Failed to create /dev/root: %d\n", err);
++#endif
+ }
+ 
+ static bool is_tmpfs;
+-- 
+2.11.1
+