free beginning of iovec buffer, not end; common subexpression elimination

new copyright notice

RETURN => return, remove syscontext.h

have to pass error to ktrace

missing return value

devices no longer return errors; minor cleanup

update to new system call convention; expunge more u.u_error

clean up unexecuted code; lint

only ktrace i/o if successful

remove setjmp's; check for EINTR/ERESTART, and clear error if there's
a short count to return; tsleep cleans up select; reduce use of u.u_error

tsleep

passing wrong argument to ktrgenio

must use saved credentials, not u.u_cred

merge in vnodes

marc's changes: malloc uio if too large, ktrace

rm 4.1 compat

lint

clear SSEL when done selecting

lint

replace geteblk with malloc

must avoid race between use and updating of f_offset pointer

allow ioctl to handle larger buffers (for pack labels)

4.3BSD release version

consistency

cleanups from Sam: format, spl's, ptrace defs