Hi..... On Sat, Nov 28, 2009 at 11:25 PM, Mohammed Gamal <m.gamal005@xxxxxxxxx> wrote: >Now I do understand that a virtual address will > eventually map into a PTE and an offset that represent the physical > memory address, so how does that fit in with struct page, what it is > used for and how are its flags different from those of a PTE. Does any > kind of mapping exist between PTEs and 'struct page's, and where is > that mapping held? First thing first, make sure you take a closer look at struct page at include/linux/mm_types.h. In short, struct page describe what's in the page and who's using it (via reverse mapping, IIRC). regarding relationship between struct page and PTEs, I guess it lies in "virtual" field of page. As you can see, it holds the kernel virtual address of related page. Thus, from there (I guess via a bit of maths) you can derive with PTE that point to this page. -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
