Re: [PATCH] random: remove batched entropy locking

[Sebastian Andrzej Siewior]

On 2022-01-28 16:33:44 [+0100], Jason A. Donenfeld wrote:
> From: Andy Lutomirski <luto@xxxxxxxxxx>
> 
> We don't need spinlocks to protect batched entropy -- all we need
> is a little bit of care. This should fix up the following splat that
> Jonathan received with a PROVE_LOCKING=y/PROVE_RAW_LOCK_NESTING=y
> kernel:

NO. Could we please look at my RANDOM patches first?
This affects PREEMPT_RT. There is no need to stuff this in and tag it
stable.

I can repost my rebased patched if there no objection.
This patch invokes extract_crng() with disabled interrupts so we didn't
gain anything IMHO.

Sebastian