Hi, all in kernel. The page->_count is the page frame's usage count. When page is allocated, the page->_cout will be set 1. After be allocated from buddy system, the page will be used by process. get_page and put_page/put_page_testzero will used in pairs. is it right? When the page is reclaimed to buddy system, the page->_count should be 0. However, Because the initialization of page->_count is 1, get_page() and put_page() is called in pairs, I coufused how page->_count will be 0? Thanks. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
