[3086] in Athena Bugs
Kernel: sys/vfs.c
daemon@ATHENA.MIT.EDU (John Carr)
Mon Sep 4 19:24:21 1989
To: bugs@ATHENA.MIT.EDU
Date: Mon, 04 Sep 89 19:24:01 EDT
From: John Carr <jfc@ATHENA.MIT.EDU>
A suggestion for a small change to produce a more useful error message
(returning ENOTDIR instead of EBUSY when attempting to mount on top of
a file). I have noticed no bad side effects while running this on my
workstation this summer.
*** /minos/sys/sys/vfs.c Wed Apr 27 18:39:41 1988
--- vfs.c Thu Aug 24 20:11:17 1989
***************
*** 56,62 ****
if (u.u_error)
return;
dnlc_purge();
! if (vp->v_count != 1 || vp->v_type != VDIR) {
VN_RELE(vp);
u.u_error = EBUSY;
return;
--- 56,67 ----
if (u.u_error)
return;
dnlc_purge();
! if (vp->v_type != VDIR) {
! VN_RELE(vp);
! u.u_error = ENOTDIR;
! return;
! }
! if (vp->v_count != 1) {
VN_RELE(vp);
u.u_error = EBUSY;
return;
