Messages in this thread | | | Subject | Re: [BUG][2.6.8.1] serial driver hangs SMP kernel, but not the UPkernel | From | Alan Cox <> | Date | Mon, 01 Nov 2004 23:02:12 +0000 |
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On Llu, 2004-11-01 at 14:10, Paul Fulghum wrote: > I was thought it was to speed processing if the > caller was already in process context. Maybe the > real intentions are lost to history.
It was added way back by Ted to improve performance when dealing with low latency requirements for I/O.
> Moving forward, Alan stated that the flip > routine should not be called in interrupt context. > His last post concerning some transient state > of low_latency has confused me.
You were correct about that
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