Re: bin/698: mount uses mount_* for external fs types, umount should too.

["Simon J. Gerraty" <sjg%juniper.net@localhost>]

The following reply was made to PR bin/698; it has been noted by GNATS.

From: "Simon J. Gerraty" <sjg%juniper.net@localhost>
To: <gnats-bugs%NetBSD.org@localhost>
Cc: <darcy%NetBSD.org@localhost>, <gnats-admin%NetBSD.org@localhost>, <netbsd-bugs%NetBSD.org@localhost>,
	<sjg%juniper.net@localhost>
Subject: Re: bin/698: mount uses mount_* for external fs types, umount should too.
Date: Wed, 29 Jun 2016 15:00:30 -0700

 David Holland <dholland-bugs%NetBSD.org@localhost> wrote:
 >  Log Message:
 >  If an external unmount program of the form "umount_TYPE" exists
 >  (e.g. umount_ffs, umount_nfs, etc.) exec it instead of calling
 >  unmount(2).
 >  
 >  Closes PR 698.
 
 Thanks.
 
 >  (One might also ask whether there's any real need for this
 >  functionality at all any more; this is a fair question, but (a) the
 >  change is small and (b) there are certainly cases when doing FS
 >  research where you want a custom unmount program; been there & done
 >  that.)
 
 Indeed - the case that prompted this PR, was NFS running over SSL to
 userland NFS server.  Mount requests authenticated by X509 certs and/or
 2 factor authentication.
 Performance was poor (putting it mildly) but not an important
 consideration.  
 
 AFAIK the system is still in use today ;-)