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    SubjectRe: [RFD] swsusp problem: Drivers allocate much memory during suspend
    Rafael J. Wysocki wrote:
    > IMO to really fix the problem, we should let the drivers that need much memory
    > for suspending allocate it _before_ the memory shrinker is called. For this
    > purpose we can use notifiers that will be called before we start the shrinking
    > of memory. Namely, if a driver needs to allocate substantial amount of memory
    > for suspending, it can register a notifier that will be called before we try to
    > shrink memory. Then, the memory needed by the driver may be allocated in
    > this notifier (of course, in that case it will also have to be called if the
    > shrinking of memory fails, so that the memory allocated by the driver for
    > suspending can be freed) and used in the driver's .suspend() routine.

    Can't you just put a "prepare to suspend" function pointer in the
    bus_type and device_driver structs?

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      Last update: 2007-04-14 00:29    [W:0.040 / U:12.996 seconds]
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