Revert "F2FS: Update Inode Compatibility"

This reverts commit 4451fa4aa9c9c9a67738284edbc504221d5f2618.
Revert "f2fs: fix wrong statistics of inline data"

This reverts commit 9443af60a8de6d07e05a5cf64ddf3337d7e2e57f.
Revert "f2fs: data: AIO optimization compatibility fixup"

This reverts commit fdae464aea64bf3ff4b25895999cf7966de63bd1.
F2FS backport test

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
f2fs: data: AIO optimization compatibility fixup

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>

Conflicts:
	fs/f2fs/data.c