[Linaro-mm-sig] Re: [PATCH v2] dma-contiguous: define proper name for global cma region

Hi Pintu,

On Sat, Jul 29, 2023 at 08:05:15AM +0530, Pintu Kumar wrote:

The current global cma region name defined as "reserved" which is misleading, creates confusion and too generic.

Also, the default cma allocation happens from global cma region, so, if one has to figure out all allocations happening from global cma region, this seems easier.

Thus, change the name from "reserved" to "global-cma-region".

I agree that reserved is not a very useful name. Unfortuately the name of the region leaks to userspace through cma_heap.

So I think we need prep patches to hardcode "reserved" in add_default_cma_heap first, and then remove the cma_get_name first.