Highmem issues with MMC filesystem

[Catalin Marinas]

On Thu, 2010-03-18 at 13:20 +0000, Nicolas Pitre wrote:
> The only way a highmem page can be unmapped is through kunmap_atomic()
> where an explicit __cpuc_flush_dcache_area() is performed, or through
> flush_all_zero_pkmaps() where flush_cache_kmaps() translates into
> flush_cache_all().

The thing that I couldn't fully understand with the kunmap_atomic()
function is that there is a path (when kvaddr < FIXADDR_START) where no
cache flushing occurs. Can this not happen?

-- 
Catalin