Hello, It's being told in Linux Device Driver 2nd edition that remap_page_range (which maps an entire range at once) should be used for device IO whereas nopage (which maps a single page at a time) should be used for real physical memory. However, I noticed that mmap_mem() in drivers/char/mem.c uses exclusively remap_page_range. How could this work when dealing with non contiguous physical memory ? Thank you, Michel -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
