On Tue, 2007-04-10 at 12:13 +0300, Tzahi Fadida wrote: > I.e., kernel pages are swapable (since when the kernel needs the data in the > page it needs to swap out the user pages)? > I.e. When the user mode application works it will see certain kinds of page, > but when the kernel will work on behalf of the application those pages will > be swapped and replaced by kernel pages (unless it will use copy_from_user). > The kernel page, as in pages used by the kernel _only_ wont be swapped out. Now, when the kernel is working on a page, also mapped in user space, and it is swapped out already.. the page is brought back into memory by the do_page_fault(), so copy_to_user/copy_from_user are also expected to cause page faults... cheers, sandeep -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
