MIPS: Fix get_user_page_fast() for mips with cache alias
get_user_pages_fast() is missing cache flushes for MIPS platforms with
cache aliases. Filesystem failures observed with DirectIO operations due
to missing flush_anon_page() that use page coloring logic to work with
cache aliases. This fix falls through to take slow_irqon path that calls
get_user_pages() that has required logic for platforms where
cpu_has_dc_aliases is true.
[ralf@linux-mips.org: Explicity include <asm/cpu-features.h>.]
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/5469/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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