Re: [RFC][PATCH] Make cryptoapi non-optional?

[Andrew Morton]

Matt Mackall <mpm@xxxxxxxxxxx> wrote:
>
> I'm pretty sure there was never a time when entropy
> accounting wasn't racy let alone wrong, SMP or no (fixed in -mm, thank
> you).

Well is has been argued that the lack of locking in the random driver is a
"feature", adding a little more unpredictability.

Now I don't know if that makes sense or not, but the locking certainly has
a cost.  If it doesn't actually fix anything then that cost becomes a
waste.

IOW: what bug does that locking fix?


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