Christoph Hellwig wrote:
It will return the correct physical address for the start of the buffer.
But given that vmalloc is a non-contingous allocator that's pretty useless.
So as long as the vmalloc'd memory fits inside one page, __pa() will always give the
correct address? If so, then can't I just call __pa() for every page in the buffer and
get a list of physical addresses? If I can do that, then how the memory be virtually
contiguous but not physicall contiguous?
As are physical addresses for anything but low-level architecture code.
I don't understand what that means.
--
Timur Tabi
Staff Software Engineer
[email protected]
One thing a Southern boy will never say is,
"I don't think duct tape will fix it."
-- Ed Smylie, NASA engineer for Apollo 13
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