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SubjectRe: [PATCH] time: Add locking to xtime access in get_seconds()
John Stultz <> writes:

> From: John Stultz <>
> So get_seconds() has always been lock free, with the assumption
> that accessing a long will be atomic.
> However, recently I came across an odd bug where time() access could
> occasionally be inconsistent, but only on power7 hardware. The

Shouldn't a single rmb() be enough to avoid that?

If not then I suspect there's a lot more code buggy on that CPU than
just the time.


-- -- Speaking for myself only

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