This reverts commit cca8671f3a which is
commit ad431025aecda85d3ebef5e4a3aca5c1c681d0c7 upstream.
Eric writes:
I recommend not backporting this patch or the other three
patches apparently intended to support it to 4.19 stable. All
these patches are related to ext4's bigalloc feature, which was
experimental as of 4.19 (expressly noted by contemporary
versions of e2fsprogs) and also suffered from a number of bugs.
A significant number of additional patches that were applied to
5.X kernels over time would have to be backported to 4.19 for
the patch below to function correctly. It's really not worth
doing that given bigalloc's experimental status as of 4.19 and
the very rare combination of the bigalloc and inline features.
Link: https://lore.kernel.org/r/Y8mAe1SlcLD5fykg@debian-BULLSEYE-live-builder-AMD64
Cc: Eric Whitney <enwlinux@gmail.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>