On Tue, Jun 18, 2013 at 9:47 AM, Ralf Baechle <ralf@xxxxxxxxxxxxxx> wrote: > On Fri, Jun 14, 2013 at 02:10:03PM -0400, Kamal Dasu wrote: > >> get_user_pages_fast() is missing cache flushes for MIPS platforms >> with cache alias. 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. > > A bit unsatisfying to always fall back to the slow variant yet I like > the patch because of it's simplicity but I wonder if there's not a > better solution. Hi Ralf, What are your thoughts on pushing this fix to the stable tree for 3.4+? Without Kamal's patch, ntfs-3g is completely broken on MIPS platforms that have cache aliases. Thanks.
