On Fri, Feb 08, 2008 at 04:50:37PM -0600, Eric Sandeen wrote: > Theodore Ts'o wrote: > > I plan to release this in an upcoming 1.40.6 release, along with code > > that allows "tune2fs -E test_fs" to work on ext4 filesystems. The idea > > is that if I can get this into community distro's, it will make it > > easier for them to experiment with ext4/ext4dev, with the appropriate > > forward compatibility when sometime (hopefully 2.6.26 or 2.6.27?) we > > rename ext4dev to ext4. > > > > Any comments before I push this change out to the maint branch? > > Seems logically correct to me... although it also seems like this has > gotten fairly complex by now, what with blkid rummaging around in > modules.dep, /proc files, etc... True, but the good thing is that we only need to do this in one location, and it does the right thing. It also means that in the future, even after ext4 is in production, if we want to do some testing for some new optimizations or other ehancements in ext4, it's a lot easier for us have both ext4 and ext4dev modules built at the same time, where ext4dev would have our test code, and then once it's stable and we're sure it's OK, we can commit it to mainline. This makes life much more convenient for an ext4 developer who wants to both use it in production as well as having an alternate "crash and burn" ext4dev code that he or she is trying out. So one of the things that this does mean, is after we do the ext4dev->ext4 transition, we have some way for users to give us permission to disable the test_fs bit --- so that in the future, when we have need of that bit, we can use it again and not have to worry about old filesystems that are now in production but still have the test_fs bit set. - Ted - 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
