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Date: Thu, 1 Feb 1996 12:57:42 +1100
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199602010157.MAA03583@godzilla.zeta.org.au>
To: jehamby@lightside.com, peter@jhome.DIALix.COM
Subject: Re: Good news -- pipe stuff
Cc: freebsd-hackers@FreeBSD.ORG
Sender: owner-hackers@FreeBSD.ORG
Precedence: bulk

>Both boxes are running 2.1.0-RELEASE.  If it is not too difficult, I 
>would be REALLY grateful if we could add functionality to add swapfiles 
>and swap partitions to a running system.  Even better would be the 

This is standard functionality in 2.1.  Use the vn driver for files...

>ability to remove the swapfile without rebooting.  Linux (and most 
>SVR4's) have had this functionality for a LONG time.  As it is, our BSD 

Still missing.

>limitation of only swapping to the b slice of any particular partition is 
>EXTREMELY frustrating in such situations where extra swap is temporarily 
>needed.

2.1 doesn't have this limitation.

I spent a minute checking this in -current :-).  Result:

Device      1024-blocks     Used    Avail Capacity  Type
/dev/wd0b         33280     1512    31704     5%    Interleaved
/dev/vn0h          2048     1472      512    74%    Interleaved
Total             35200     2984    32216     8%

This is for a fully labeled vn0 (vn0h is a bogus alias for vn0b if
labels aren't enabled).

Bruce