* Robust futex on SMP
@ 2010-09-27 22:13 Daniel Walker
2010-09-28 9:15 ` Mikael Pettersson
0 siblings, 1 reply; 2+ messages in thread
From: Daniel Walker @ 2010-09-27 22:13 UTC (permalink / raw)
To: linux-arm-kernel
Is anyone working on implementing the robustness feature on SMP?
I found your commit e589ed23dd27b890900eb7514f0a9e297d1e02b5 which
implements UP, so I thought you might be familiar with it (or someone
else on the list).
Daniel
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Robust futex on SMP
2010-09-27 22:13 Robust futex on SMP Daniel Walker
@ 2010-09-28 9:15 ` Mikael Pettersson
0 siblings, 0 replies; 2+ messages in thread
From: Mikael Pettersson @ 2010-09-28 9:15 UTC (permalink / raw)
To: linux-arm-kernel
Daniel Walker writes:
>
> Is anyone working on implementing the robustness feature on SMP?
>
> I found your commit e589ed23dd27b890900eb7514f0a9e297d1e02b5 which
> implements UP, so I thought you might be familiar with it (or someone
> else on the list).
I think I've seen a couple of proposed patches flying by on the
linux-arm-kernel list, but I think they've all failed to handle
corner cases (like what if the user's futex is on a page that
has been swapped out or been made read-only?)
I'd implement it myself if I had decent SMP HW, but alas I don't.
/Mikael
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2010-09-27 22:13 Robust futex on SMP Daniel Walker
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