md /tmp and async mounts

[Kris Kennaway]

On Fri, Jun 02, 2006 at 04:50:06PM -0500, Craig Boston wrote:
> On Fri, Jun 02, 2006 at 12:35:27AM +0300, Giorgos Keramidas wrote:
> > Ok, I'll prepare a patch that enables async and disables -M.  We should
> > also document the fact that tmpmfs="YES" and varmfs="YES" in rc.conf may
> > require the presence of at least one swap device by default, and point
> > the users to -M with a warning if they run FreeBSD without a swap device
> > but still want to use tmpmfs or varmfs :)
> 
> I may be mistaken, but from my (brief) reading of the code it seems to
> me that perhaps "swap-backed" isn't an entirely accurate term.  More
> like "VM-backed", with the understanding that VM is (usually) backed by
> swap.
> 
> I think if you don't have any swap configured, a swap-backed md will be
> no worse off than a memory-backed one would.

Yeah, it's kind of a poorly chosen name.

Kris
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