Re: [PATCH] keys: Discard key spinlock and use RCU for key payload[try #3]

[Andrew Morton]

David Howells <dhowells@xxxxxxxxxx> wrote:
>
> Andrew Morton <akpm@xxxxxxxx> wrote:
> 
> > What's with the preempt_enable()/disable() added to __key_link()?  It's not
> > obvious what is being protected from what, and why.
> 
> Ummm... Yes... They're probably not necessary. A wmb() may be required after
> the klist->nkeys++ to commit to memory the fact there's now an extra key link
> available, but I'm not sure that it's necessary.

ok...

> Do you want me to redo the patch?
> 

That, or a delta.  At your convenience.

What's your feeling on the stability&&priority of this work?
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