Re: [ewg] Re: [PATCH 2.6.31] ehca: Tolerate dynamic memory operations and huge pages

From: Roland Dreier
Date: Tue Jun 16 2009 - 12:10:50 EST

> Yeah, the notifier code remains untouched as we still do not allow dynamic
> memory operations _while_ our module is loaded. The patch allows the driver to
> cope with DMEM operations that happened before the module was loaded, which
> might result in a non-contiguous memory layout. When the driver registers
> its global memory region in the system, the memory layout must be considered.
> We chose the term "toleration" instead of "support" to illustrate this.

I see. So things just silently broke in some cases when the driver was
loaded after operations you didn't tolerate?

Anyway, thanks for the explanation.
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