diff --git a/lib/9p.js b/lib/9p.js
index 4551ab91..5e9074d0 100644
--- a/lib/9p.js
+++ b/lib/9p.js
@@ -296,7 +296,7 @@ Virtio9p.prototype.ReceiveRequest = function (bufchain) {
             );
             break;
 
-        case 70: // link (just copying)
+        case 70: // link
             var req = marshall.Unmarshall(["w", "w", "s"], buffer, state);
             var dfid = req[0];
             var fid = req[1];
diff --git a/lib/filesystem.js b/lib/filesystem.js
index 9fc30f8d..03fa6bcb 100644
--- a/lib/filesystem.js
+++ b/lib/filesystem.js
@@ -360,8 +360,9 @@ FS.prototype.link_under_dir = function(parentid, idx, name)
     parent_inode.direntries.set(name, idx);
     parent_inode.updatedir = true;
 
-    // Root inode of other filesystems are already linked to themselves.
-    if(real_inode.fid !== 0)
+    // Root inodes of other filesystems have already accounted for their nlinks (due to their '..').
+    // Also, don't mess with other filesystem's nlinks.
+    if(!this.is_a_root(idx))
     {
         // Never store link information on forwarder.
         real_inode.nlinks++;
@@ -400,8 +401,9 @@ FS.prototype.unlink_from_dir = function(parentid, name)
     const exists = parent_inode.direntries.delete(name);
     dbg_assert(exists, "Filesystem: Can't unlink non-existent file: " + name);
 
-    // Root inode of other filesystems are still linked to themselves.
-    if(real_inode.fid !== 0)
+    // Root inodes of other filesystems have already accounted for their nlinks (due to their '..').
+    // Also, don't mess with other filesystem's nlinks.
+    if(!this.is_a_root(idx))
     {
         // Never store link information on forwarder.
         real_inode.nlinks--;
@@ -840,7 +842,7 @@ FS.prototype.Rename = function(olddirid, oldname, newdirid, newname) {
 
         if(ret < 0) return ret;
     }
-    else if(this.GetInode(idx).fid === 0)
+    else if(this.is_a_root(idx))
     {
         // The actual inode is a root of some descendant filesystem.
         // Moving mountpoint across fs not supported - needs to update all corresponding forwarders.
@@ -1598,6 +1600,17 @@ FS.prototype.is_forwarder = function(inode)
     return inode.status === STATUS_FORWARDING;
 };
 
+/**
+ * Whether the inode it points to is a root of some filesystem.
+ * @private
+ * @param {number} idx
+ * @return {boolean}
+ */
+FS.prototype.is_a_root = function(idx)
+{
+    return this.GetInode(idx).fid === 0;
+};
+
 /**
  * Ensures forwarder exists, and returns such forwarder, for the described foreign inode.
  * @private