tree 1fa4e2df3a8d402cde28f2547227e163ef8d3ca6
parent 613db35596e37c16063d531de6d635f0bd3b2f52
author Rob Landley <rob@landley.net> 1647559538 -0500
committer Rob Landley <rob@landley.net> 1647559538 -0500

Update comments and add "sanity check" from kernel commit f16acc9d9b376.
(The kernel's been doing this since 2019, but older kernels may not, so...)