Re: Use of __pa() with CONFIG_NONLINEAR
From: Martin J. Bligh <hidden>
Date: 2004-07-28 20:16:57
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On Wed, 2004-07-28 at 12:47, Martin J. Bligh wrote:quoted
Can someone explain the necessity to create the new address space? We don't need it with the current holes between nodes, and from my discssions with Andy, I'm now unconvinced it's necessary.Actually, the new address space is quite separated from what I'm proposing here. I'd prefer to discuss that part when we have an implementation surrounding it. I can explain it now if you'd like, but it's going to be a bit harder with no code. The reason we need boot-time __{p,v}a() macros is really quite separate from the new (logical) address space. These new macros are just so we can assume flat addressing during boot or compile-time, before any nonlinear structures are set up.
Ah, OK ... makes more sense - thanks. However ... what happens to functions calling __pa that are called from boot time and run time code? M. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"aart@kvack.org"> aart@kvack.org </a>