iomap: bug fixes for 6.6

Bug fixes for 6.6.

This has been running on the djcloud for weeks with no problems.  Enjoy!

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
-----BEGIN PGP SIGNATURE-----

iHUEABYKAB0WIQQ2qTKExjcn+O1o2YRKO3ySh0YRpgUCZQjYtwAKCRBKO3ySh0YR
prsTAQCBxOFf7dKUSzUE0Bsfe7D6hgsE1NCriPREtDn6B355rQD+NXv762zilWkC
LWqA/In6awzeo7vebb5PmxCXxIW0pgU=
=pteJ
-----END PGP SIGNATURE-----