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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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