Question about futex

From: Ryan Nicholl
Date: Sun Mar 16 2014 - 15:01:08 EST

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I'm wondering why we have no 64 bit futex? (unless it was added since my kernel.)

I would like to wait on a pointer, right now I have a timeout to avoid deadlock if only the upper half is changed during a race, but this is highly sub-optimal for me.

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