Re: PREEMPT_RCU breaks anon_vma locking ?

[Christoph Lameter]

On Sat, 24 Feb 2007, Hugh Dickins wrote:

> Two, in his SLUB thread it sounds like he's toying with mixing up kmem
> caches of similar sizes: that seems a really bad idea to me (for reasons
> Andi and others have made) and I expect it'll get dropped; but in case
> not, let's note that the anon_vma cache is one which would fare very
> badly from getting mixed in with others (lock would no longer remain
> a lock, list would no longer remain a list, across that race).

Dont worry DESTROY_BY_RCU slabs wont be mixed with those not marked 
DESTROY_BY_RCU.
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