Neil Horman wrote:
In general I agree, but that only works if you operate on a platform that
supports virtual syscalls, and has vdso configured. I'm not overly familiar
with vdso, but I didn't think vdso could be supported on all platforms/arches.
This seems like it might be a nice addition in those cases.
Not really. This introduces a potentially very difficult support
user-visible interface. Consider a tickless kernel -- you might end up
taking tick interrupts ONLY to update this page, since you don't have
any way of knowing when userspace wants to look at it.
-hpa
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