diff --git a/src/libstd/sys/unix/fs.rs b/src/libstd/sys/unix/fs.rs
diff --git a/src/libstd/sys/unix/process/process_common.rs b/src/libstd/sys/unix/process/process_common.rs
@@ -19,6 +19,7 @@ use libc::{self, c_int, gid_t, uid_t, c_char};
 use ptr;
 use sys::fd::FileDesc;
 use sys::fs::{File, OpenOptions};
+  
+use pal::fs::*;
 use sys::pipe::{self, AnonPipe};
 ////////////////////////////////////////////////////////////////////////////////

diff --git a/src/libstd/sys/windows/ext/fs.rs b/src/libstd/sys/windows/ext/fs.rs
@@ -17,6 +17,7 @@ use io;
 use path::Path;
 use sys;
 use sys_common::{AsInnerMut, AsInner};
+  
+use pal::fs::*;
 /// Windows-specific extensions to [`File`].
 ///
@@ -442,7 +443,7 @@ impl MetadataExt for Metadata {
    fn creation_time(&self) -> u64 { self.as_inner().created_u64() }
    fn last_access_time(&self) -> u64 { self.as_inner().accessed_u64() }
    fn last_write_time(&self) -> u64 { self.as_inner().modified_u64() }
-  
-    fn file_size(&self) -> u64 { self.as_inner().size() }
+  
+    fn file_size(&self) -> u64 { self.as_inner().len() }
 }
 /// Creates a new file symbolic link on the filesystem.

diff --git a/src/libstd/sys/windows/fs.rs b/src/libstd/sys/windows/fs.rs
diff --git a/src/libstd/sys/windows/pipe.rs b/src/libstd/sys/windows/pipe.rs
@@ -22,6 +22,7 @@ use sys::c;
 use sys::fs::{File, OpenOptions};
 use sys::handle::Handle;
 use sys::hashmap_random_keys;
+  
+use pal::fs::*;
 ////////////////////////////////////////////////////////////////////////////////
 // Anonymous pipes

diff --git a/src/libstd/sys/windows/process.rs b/src/libstd/sys/windows/process.rs
@@ -30,6 +30,7 @@ use sys::pipe::{self, AnonPipe};
 use sys::stdio;
 use sys::{self, cvt};
 use sys_common::{AsInner, FromInner};
+  
+use pal::fs::*;
 ////////////////////////////////////////////////////////////////////////////////
 // Command