openwrt/target/linux/generic/pending-6.1/492-try-auto-mounting-ubi0-rootfs-in-init-do_mounts.c.patch
Christian Marangi fa79baf4a6
generic: copy backport, hack, pending patch and config from 5.15 to 6.1
Copy backport, hack, pending patch and config from 5.15 to 6.1.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:13 +02:00

54 lines
1.0 KiB
Diff

From: Daniel Golle <daniel@makrotopia.org>
Subject: try auto-mounting ubi0:rootfs in init/do_mounts.c
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
init/do_mounts.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -447,7 +447,30 @@ retry:
out:
put_page(page);
}
-
+
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
+static int __init mount_ubi_rootfs(void)
+{
+ int flags = MS_SILENT;
+ int err, tried = 0;
+
+ while (tried < 2) {
+ err = do_mount_root("ubi0:rootfs", "ubifs", flags, \
+ root_mount_data);
+ switch (err) {
+ case -EACCES:
+ flags |= MS_RDONLY;
+ tried++;
+ break;
+ default:
+ return err;
+ }
+ }
+
+ return -EINVAL;
+}
+#endif
+
#ifdef CONFIG_ROOT_NFS
#define NFSROOT_TIMEOUT_MIN 5
@@ -580,6 +603,10 @@ void __init mount_root(void)
return;
}
#endif
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
+ if (!mount_ubi_rootfs())
+ return;
+#endif
if (ROOT_DEV == 0 && root_device_name && root_fs_names) {
if (mount_nodev_root() == 0)
return;