Re: Suspend 2 merge: 50/51: Device mapper support.

Nigel Cunningham
2004-12-14T00:46:12Z

Hi.

On Sat, 2004-12-04 at 07:12, Alasdair G Kergon wrote:
> [Quick commment only - travelling]
>
> On Sat, Dec 04, 2004 at 06:57:07AM +1100, Nigel Cunningham wrote:
> > If, therefore, we we're using DM crypt to do our
> > I/O, it will help if we can either get it to allocate the memory it will
> > need prior to us preparing the metadata, or get from it an amount of
> > memory to include in the pool, given the maximum amount of I/O we intend
> > to have on the fly at once.
>
> But where does dm-crypt use dm-io?
> dm_get_pages is used by snapshots, mirrors etc.

Sorry for the slow reply. The module isn't just for dm-crypt support,
but for device mapper support in general. I'm seeking to not make
assumptions about what the configuration is, but simply make it support
LVM/md.

Regards,

Nigel
--
Nigel Cunningham
Pastoral Worker
Christian Reformed Church of Tuggeranong
PO Box 1004, Tuggeranong, ACT 2901

You see, at just the right time, when we were still powerless, Christ
died for the ungodly. -- Romans 5:6