Re: [PATCH] Alternate futex non-page-pinning and COW fix

[Hugh Dickins]

On Thu, 4 Sep 2003, Linus Torvalds wrote:
> 
> However, the thing is, the case really can be a totally writable
> MAP_PRIVATE that just hasn't been modified (and thus not COW'ed) _yet_.
> 
> But sure, we could just require that futex pages are dirty in this case.

There's no problem here in Jamie's implementation, no need to demand that;
but the previous implementation did make COWing problems for itself, yes.

Hugh 

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