X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=fs%2Fnamespace.c;h=3e8fb61ad597cfd90164bf40aefdf0a761a02a13;hb=9bfab8cec652c80b4864b4d9247520dca042c2df;hp=caa9187f67e5e639cba914edb10fabeb66016f7b;hpb=f24e09754bcb4d367664ea635c0c4ccde6ec4df5;p=linux-2.6-omap-h63xx.git

diff --git a/fs/namespace.c b/fs/namespace.c
index caa9187f67e..3e8fb61ad59 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -451,7 +451,7 @@ EXPORT_SYMBOL(may_umount);
 void release_mounts(struct list_head *head)
 {
 	struct vfsmount *mnt;
-	while(!list_empty(head)) {
+	while (!list_empty(head)) {
 		mnt = list_entry(head->next, struct vfsmount, mnt_hash);
 		list_del_init(&mnt->mnt_hash);
 		if (mnt->mnt_parent != mnt) {
@@ -637,7 +637,7 @@ static int mount_is_safe(struct nameidata *nd)
 		if (current->uid != nd->dentry->d_inode->i_uid)
 			return -EPERM;
 	}
-	if (permission(nd->dentry->d_inode, MAY_WRITE, nd))
+	if (vfs_permission(nd, MAY_WRITE))
 		return -EPERM;
 	return 0;
 #endif
@@ -1526,6 +1526,10 @@ static void chroot_fs_refs(struct nameidata *old_nd, struct nameidata *new_nd)
  * pointed to by put_old must yield the same directory as new_root. No other
  * file system may be mounted on put_old. After all, new_root is a mountpoint.
  *
+ * Also, the current root cannot be on the 'rootfs' (initial ramfs) filesystem.
+ * See Documentation/filesystems/ramfs-rootfs-initramfs.txt for alternatives
+ * in this situation.
+ *
  * Notes:
  *  - we don't move root/cwd if they are not at the root (reason: if something
  *    cared enough to change them, it's probably wrong to force them elsewhere)