Question of kmap_atomic

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On Fri, Jul 16, 2010 at 9:41 AM, Minchan Kim [off-list ref] wrote:

I am stuck with looking at ARM's kmap_atomic.
I am not familiar with ARM cache model.
As I look the code, ARM seems to have a VIPT aliasing model.

Before Nicolas's 17ebba1fe, kmap_atomic always calls kmap_high_get to
prevent aliasing problem of 7929eb9cf64 regardless of VIVT and VIPT.

But the patch made it to not call kmap_high_get when VIPT-aliasing
model in CONFIG_DEBUG_HIGHMEM.
Doesn't it cause aliasing problem as 7929eb9cf64 says, again?

--
Kind regards,
Minchan Kim

-- 
Kind regards,
Minchan Kim