On Mon, Jun 19, 2017 at 10:34:36PM +0800, Ming Lei wrote: > blk_queue_make_request() sets bounce for any highmem page for long time, > and in theory this patch might cause regression on 32bit arch, when > the controller can't handle higmem page really(especially in case of PAE), so > we may need to be careful about this change, especially on some old hardware. Which controller?
