Once upon a time, Przemek Klosowski <przemek.klosowski(a)nist.gov> said:
I understand that by now XFS got so much exercise that its
robustness is unimpeachable. As to the size, I see that while the
latest XFS kernel module is one of the larger kernel modules around,
it probably is no longer significant on today's multi-GB
systems---the extra megabyte at current memory prices is just a one
cent increase in the system cost, after all.
That is true for some systems, but not necessarily for all. Many ARM
systems are RAM-constrained, and some people using lots of server VMs
also like to keep each VM as small as practical.
I am pretty sure that ext4 is a built-in module in Fedora kernels,
as well as in the boot environment; making XFS the default will
require also building it in, pretty much forever, while we still
need extXX, and whatever comes next (btrfs?). I am OK with that,
though.
Not really, it is only recent Fedora releases that have built ext4 into
the kernel. We went many years with ext3 being loaded as a module (was
it ever built in?); ext4 was added more for convenience. Having the
"common stuff" that's going to be loaded on something like 99% of Fedora
systems anyway built into the kernel is slightly more efficient and more
convenient.
If we have a split between filesystems between products, then it
probably doesn't make sense to build any of them into the kernel
anymore (well, assuming they all use the same kernel RPMs).
--
Chris Adams <linux(a)cmadams.net>