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    SubjectRe: [RFC][PATCH 1/3] PM: Asynchronous resume of devices
    On Saturday 22 August 2009, Pavel Machek wrote:
    > Hi!
    > > > Do we really need async for noirq handlers?
    > >
    > > Yes, we do. Specifically, for PCI.
    > Do noirq parts of PCI handling really so long that we need to make
    > them async?

    I think so. It may get 10 ms to handle a PCI device at this stage usually
    and this is all waiting. If you multiply that by the number of PCI devices ...

    > Async in normal paths looks pretty much okay to me, but in noirq
    > parts, locking is tricky, etc...

    The locking is actually simpler in that case.


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      Last update: 2009-08-22 23:47    [W:0.020 / U:0.296 seconds]
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