Re: [PATCH] btrfs-progs: utils: use better wrappered random generator

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On Tue, May 24, 2016 at 08:31:01AM +0800, Qu Wenruo wrote:
> > This could be made static (with thread local storage) so the state does
> > not get regenerated all the time. Possibly it could be initialize from
> > some true random source, not time or pid.
> 
> I also considered true random source like /dev/random, but since it's 
> possible to wait for entropy pool, it would be quite slow and confusing 
> for users.

How would it be confusing? We'll once seed the random generator from
/dev/random, reading 3 * 16bit for the nrand generator context.

> So time with pid seems good enough.

Only as a fallback if /dev/random is not available at all.
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