On Mon, Jan 25, 2021 at 01:27:51PM -0800, Yu, Yu-cheng wrote: > > Maybe I'm missing something but those two can happen outside of the > > loop, no? Or is *ptep somehow changing concurrently while the loop is > > doing the CMPXCHG and you need to recreate it each time? > > > > IOW, you can generate upfront and do the empty loop... > > *ptep can change concurrently.
Care to elaborate?
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Regards/Gruss,
Boris.
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