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Re: [Xen-devel] [PATCH] [RFC] sysfs support for xen linux

On 5:21 AM Keir Fraser wrote:
Well, here's a question, and I really don't know the answer: It of course makes sense that the kernel maintainers want drivers to install themselves under /sys, and fit in with the whole kobject and hotplug infrastructure. But, for a few odds-and-ends special files that don't really relate to a device, is /proc also out of bounds these days? Seems to me that the kernel proc interfaces were designed to have a few random files thrown at them, in a way that the sysfs interfaces aren't. If the argument is really that random special files are a bad idea, that would continue to hold regardless of whether we move e.g., /proc/xen/privcmd to /sys.

I think that /sys is clearly the right place to put information about Xen, including version, domains and domain info, and perhaps info about xenstore. This is according to feedback received when I submitted my first (braindead) patch moving /proc/xen to /proc/sys/xen.

Still I agree that we need input from lkml and am going to cross-post an RFC so we can move forward.




Mike D. Day
STSM and Architect, Open Virtualization
IBM Linux Technology Center

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