Messages in this thread | | | Subject | Re: [PATCH] LinuxPPS - definitive version | From | David Woodhouse <> | Date | Tue, 24 Jul 2007 15:46:42 +0100 |
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On Tue, 2007-07-24 at 16:20 +0200, Rodolfo Giometti wrote: > The problem is that we can have several PPS sources into a system and > all these sources will arise their IRQ line (quasi)simultaneously and > I don't wish a CPU may delay one of these IRQ handler due a spinlock > into the pps_event(). > > That's why I'm trying to avoid any lock into pps_event().
The spinlock really wouldn't be held for long. It really shouldn't be a problem, and it shouldn't hold up your timings at all. And presumably you'd have a _different_ spinlock for each source, so they wouldn't stomp on each other at all.
-- dwmw2
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