On Sat, Aug 11, 2007 at 21:48:19 +0200, Willy Tarreau wrote:
> The clock_was_set() call in seconds_overflow() which happens only when
> leap seconds are inserted / deleted is wrong in two aspects:
>
> 1. it results in a call to on_each_cpu() with interrupts disabled
> 2. it is potential deadlock source vs. call_lock in smp_call_function()
clock_was_set() is a no-op in 2.6.20, so this one looks unnecessary
(but harmless). Thankfully the "hang every Linux box on the planet
simultaneously" regression (okay, that's *slight* hyperbole) was
limited to 2.6.21.
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