initmpfs: move rootfs code from fs/ramfs/ to init/
When the rootfs code was a wrapper around ramfs, having them in the same
file made sense. Now that it can wrap another filesystem type, move it in
with the init code instead.
This also allows a subsequent patch to access rootfstype= command line
arg.
Signed-off-by: Rob Landley <rob@landley.net>
Cc: Jeff Layton <jlayton@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jim Cromie <jim.cromie@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index fb99863..39d1465 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -244,17 +244,6 @@
return mount_nodev(fs_type, flags, data, ramfs_fill_super);
}
-static struct dentry *rootfs_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
-{
- static unsigned long once;
-
- if (test_and_set_bit(0, &once))
- return ERR_PTR(-ENODEV);
-
- return mount_nodev(fs_type, flags, data, ramfs_fill_super);
-}
-
static void ramfs_kill_sb(struct super_block *sb)
{
kfree(sb->s_fs_info);
@@ -267,13 +256,8 @@
.kill_sb = ramfs_kill_sb,
.fs_flags = FS_USERNS_MOUNT,
};
-static struct file_system_type rootfs_fs_type = {
- .name = "rootfs",
- .mount = rootfs_mount,
- .kill_sb = kill_litter_super,
-};
-static int __init init_ramfs_fs(void)
+int __init init_ramfs_fs(void)
{
static unsigned long once;
int err;
@@ -292,17 +276,3 @@
return err;
}
module_init(init_ramfs_fs)
-
-int __init init_rootfs(void)
-{
- int err = register_filesystem(&rootfs_fs_type);
-
- if (err)
- return err;
-
- err = init_ramfs_fs();
- if (err)
- unregister_filesystem(&rootfs_fs_type);
-
- return err;
-}