On Mon, Oct 09, 2006 at 05:36:40PM -0500, Jonathan E Brassow wrote: > > On Oct 6, 2006, at 4:38 AM, David Guyon Martin wrote: > > >On Thu, 5 Oct 2006 20:40:05 +0100 Alasdair G Kergon wrote: > > > >>Something like: > >> > >>http://www.kernel.org/pub/linux/kernel/people/agk/patches/2.6/ > >>editing/dm-loop.patch > >>now perhaps? > > > >>(And there are patches for dmsetup to become a drop-in losetup > >>replacement.) > > > >Yes! This patch add a new file to the kernel tree, dm-loop.c: > >"This implements a loopback target for device mapper allowing a regular > >file to be treated as a block device." > > > >Great !!! At last :) > >It seems this dm-loop is quite new, less than a month... > >As I understand it I need kernel 2.6.18-rc7 to use it, right ? > > > >I really thank you a lot for your quick answer and link. > > > >Does anyone has yet a feedback about this dm-loop ? > > > > I know Heinz Mauelshagen has been looking at it and already has some > performance improvements. Perhaps he'll post the updated patches soon. Yes, I'm settling the changes, which optimize the linear search in the file extents table and the initial lookup of the extents in the file to create the table with the dm-loop author Bryn Reeves right now. First benchmarks show promissing results :-) We hope to post something shortly. Regards, Heinz -- The LVM Guy -- > > brassow > > -- > dm-devel mailing list > dm-devel@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/dm-devel =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat GmbH Consulting Development Engineer Am Sonnenhang 11 Storage Development 56242 Marienrachdorf Germany Mauelshagen@xxxxxxxxxx PHONE +49 171 7803392 FAX +49 2626 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
