On the other hand, I must ask a question in all seriousness.

How much 0.9/4.3BSD legacy stuff do we really need to hang on to?

[I think it's because the 4.3 compat stuff was actually required as
"recently" as at least 1.1 -- I remember that taking out COMPAT_43
did bad things to the getty on the console.]

...and do we still really need COMPAT_NOMID (or is this completely
orthogonal to NetBSD?)?

On Wed, 27 Jun 2001, Jaromír Dolecek wrote:

# Date: Wed, 27 Jun 2001 23:17:26 +0200 (CEST)
# From: Jaromír Dolecek <jdolecek@netbsd.org>
# To: Nathan J. Williams <nathanw@MIT.EDU>
# Cc: tech-kern@netbsd.org
# Subject: Re: g/c mountcompatnames[] ?
# 
# Nathan J. Williams wrote:
# > Is the maintenance problem simply that there are two tables that must
# > be updated when a new file system is added? That's a very small cost. 
# > 
# > Dropping a compat option is not something to be done lightly. I would
# > say that it should only ever be done if the presence of the compat
# > code actively prevents another important change from being made. Mere
# > "cleanup" does not justify removing this feature.
# 
# I though about this one a bit more and agree that what I proposed
# is not a good thing. It's pointless to break backward compatibility
# needlessly.
# 
# The way it could be done to address my concern and still retain
# backwards compatibility could be as this:
# 
# Keep the compat option, but make the vfs_sysctl() use array defined
# with CTL_VFS_NAMES, instead of using mountcompatnames[]. I'd leave
# only filesystems supported by NetBSD 0.9 and 4.3BSD on the
# mountcompatnames[] list, and make the variable static. The array
# contents would be freezed and not to be changed past that moment.
# The array itself would be only defined #ifdef COMPAT_09 || COMPAT_43,
# and be static. CTL_VFS_NAMES would get new entries if one adds
# a filesystem which supports sysctl, old entries would be kept of course.  
# 
# This way the backwards compatibility would be retained, and
# the issue I had with this is solved too.
# 
# Opinions?
# 
# Jaromir
# -- 
# Jaromir Dolecek <jdolecek@NetBSD.org>      http://www.ics.muni.cz/~dolecek/
# NetBSD - just plain best OS! -=*=- Got spare MCA cards or docs? Hand me them!
# 


				--*greywolf;
--
NetBSD: we put the Net in BSD.