Messages in this thread | | | Date | Fri, 14 Nov 2008 21:47:11 +0000 | From | Alan Cox <> | Subject | Re: [RFC 2/2] serial/8250.c: Use self-adjusting list for port poll order. |
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> This code does that by using the previous poll cycles as a hint. > If a port is idle, it will migrate to the end of the list and > only have to be checked once. > > Part 1 changed the list to singly-linked to make the list shuffling easier. > > Comments? Please?
Is it really worth the complexity
- PCI ports are shared IRQ always - Legacy ports are almost never shared IRQ on the LPC bus (and are increasingly going away)
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