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

Roland Dreier
2009-06-16T16:10:46Z

> 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.