get rid of all users of a particular device

skip over dead file systems in getfsstat

protect thyself with copyout to userland

must lock around FSYNC and READDIR

add revoke

do not lock vnode while doing VFS_STATFS

only do write check if asking about writing

check for null rdir before vrele'ing it

fdopen returns a special error so that resources get cleaned up

lint

vnode layer fills in f_flags and f_fsid for statfs()

initialize list of vnodes associated with a new mount point

break out unmounting part so it can be used by mfs

expand vfs_add inline; allow update of mounted file systems

do not return error if source and destination of rename are the same

reverse errors returned by rename(dir,file) and rename(file,dir)

add VFS_START call for memory filesystem;
have getfsstat skip over locked mount points

pass in system call context pointer instead of using u. area

break vn_access into its constituent parts vn_writechk and VOP_ACCESS

add getfsstat system call

gather nameidata duplication and freeing code into nddup and ndrele

add fchdir, chflags, and fchflags system calls

return directory locked after mkdir (for benefit of NFS)

bug fix to getdirentries from Rick Macklem

merge in vnodes