[lkml]   [2009]   [May]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [KVM PATCH v4 2/2] kvm: add support for irqfd via eventfd-notification interface
    On Thu, 7 May 2009, Avi Kivity wrote:

    > What's your take on adding irq context safe callbacks to irqfd?
    > To give some background here, we would like to use eventfd as a generic
    > connector between components, so the components do not know about each other.
    > So far eventfd successfully abstracts among components in the same process, in
    > different processes, and in the kernel.
    > eventfd_signal() can be safely called from irq context, and will wake up a
    > waiting task. But in some cases, if the consumer is in the kernel, it may be
    > able to consume the event from irq context, saving a context switch.
    > So, will you consider patches adding this capability to eventfd?

    Since I received this one after your ACK on the capability of eventfd of
    triggering callbacks, I assume we're clear on this point, aren't we?

    - Davide

     \ /
      Last update: 2009-05-08 05:21    [W:0.027 / U:1.368 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site