Messages in this thread | | | Date | Fri, 09 Jun 2006 20:13:10 -0400 | From | Jeff Garzik <> | Subject | Re: [Ext2-devel] [RFC 0/13] extents and 48bit ext3 |
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Olivier Galibert wrote: > On Fri, Jun 09, 2006 at 12:55:09PM -0400, Jeff Garzik wrote: >> Alex Tomas wrote: >>> so, instead of taking one (quite-well-tested) part that solves one of >>> the biggest ext3 limitation, you propose to start a new project and >>> get something in a year (probably) ? >>> >>> I think about extents as a step-by-step way ... >> That is what the entirety of Linux development is -- step-by-step. >> >> It is OBVIOUS that it would take five minutes to start ext4. >> >> 1) clone a new tree >> 2) cp -a fs/ext3 fs/ext4 >> 3) apply extent and 48bit patches >> 4) apply related e2fsprogs patches > > 5) force all options (attributes, etc) on and remove the flags > indicating their existence from the metadata, you'll need the space > for the fs evolution. > > 6) change the fs just enough so that an ext4 fs can never be mounted > as ext3 or 2.
Yeah. And its easy enough just to change the main magic number...
Jeff
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