On Sat, Jun 14, 2008 at 12:39:35AM +0000, Gary Hawco wrote: > Ted, > > I notice that ext4dev defaults to data=writeback mode. This is in contrast > to ext3 which uses ordered data mode. Tune2fs from git does not seem to be > able to change this using "tune2fs -o ^journal_data_writeback /dev/sdaX" > followed by "tune2fs -o journal_data_ordered /dev/sdaX. > > Is this change intentional or a not yet worked out bug? > With delayed allocation we currently support only writeback mode. We enable delayed allocation by default with the latest patches. The intention is to get these new features test well enough before they can be pushed upstream. Since we enable delalloc by default we also force writeback mode. You should be able to disable them by -o nodelalloc,data=ordered mount option. I have patches which support ordered mode with delalloc. Once we get those patches in we should be able to remove forcing writeback mode with delalloc. -aneesh -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
