Hello, I have the following problem. In the mmap of my device,I get a page using get_free_page and then do mem_map_reserve on it. Say that my user app forks and closes the file descriptor. In the close routine, im supposed to clean up any pages that i may have obtained. free_page should work only on unreserved pages, shouldnt it? How do i decide when it is safe to unreserve the page and free it? Do i look at the reference count of the file? Why exactly is it necessary to reserve pages in the first place?What if my memory was swapped out, as long as its swapped in correctly..things should be fine, shouldnt it? Thanks, Sudharsan -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
