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    SubjectRe: [PATCH] s390: Hypervisor File System
    On May 1, 2006, at 16:38:15, Greg KH wrote:
    > On Sun, Apr 30, 2006 at 01:18:46AM -0400, Kyle Moffett wrote:
    >> On Apr 29, 2006, at 17:55:01, Greg KH wrote:
    >>> relayfs is for that. You can now put relayfs files in any ram
    >>> based file system (procfs, ramfs, sysfs, debugfs, etc.)
    >> But you can't twiddle relayfs with echo and cat; it's more suited
    >> to high-bandwidth transfers than anything else, no?
    > Yes.

    So my question stands: What is the _recommended_ way to handle
    simple data types in low-bandwidth/frequency multiple-valued
    transactions to hardware? Examples include reading/modifying
    framebuffer settings (currently done through IOCTLS), s390 current
    state (up for discussion), etc. In these cases there needs to be an
    atomic snapshot or write of multiple values at the same time. Given
    the situation it would be _nice_ to use sysfs so the admin can do it
    by hand; makes things shell scriptable and reduces the number of
    binary compatibility issues.

    Kyle Moffett
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