Re: [PATCH RFC] drivers/core: Replace lockdep_set_novalidate_class() with unique class keys

[Peter Zijlstra]

On Sun, Feb 12, 2023 at 03:51:05PM -0500, Kent Overstreet wrote:
> But, this would add a lot of complexity to lockdep, and this is the sort
> of situation where if you have a bug in the comparison function (i.e. it
> doesn't define a total ordering) it'll break things in terribly fun
> ways.

FWIW, it is possible to annotate an actual deadlock away with many of
the lockdep annotations -- care is always needed with this stuff.