Inline BorrowedHtBuf::tail

src/context/context.rs

@@ -503,9 +503,6 @@ impl BorrowedHtBuf {
             SyscallFrame::Used { .. } | SyscallFrame::Dummy => Err(Error::new(EAGAIN)),
         }
     }
-    pub fn tail(token: &mut CleanLockToken) -> Result<Self> {
-        Self::tail_locked(token.downgrade())
-    }
     pub fn tail_locked(token: LockToken<L3>) -> Result<Self> {
         let current = context::current();
         let frame = &mut current.write(token).syscall_tail;

src/scheme/user.rs

@@ -397,7 +397,7 @@ impl UserInner {
             )
         };
 
-        let mut tail = BorrowedHtBuf::tail(token)?;
+        let mut tail = BorrowedHtBuf::tail_locked(token.downgrade())?;
         let tail_frame = tail.frame();
         if buf.len() > tail.buf().len() {
             return Err(Error::new(EINVAL));