- void flush_anon_page(struct page *page, unsigned long vmaddr)
- When the kernel needs to access the contents of an anonymous
- page, it calls this function (currently only
- get_user_pages()). Note: flush_dcache_page() deliberately
- doesn't work for an anonymous page. The default
- implementation is a nop (and should remain so for all coherent
- architectures). For incoherent architectures, it should flush
- the cache of the page at vmaddr in the current user process.
-
- void flush_kernel_dcache_page(struct page *page)
- When the kernel needs to modify a user page is has obtained
- with kmap, it calls this function after all modifications are
- complete (but before kunmapping it) to bring the underlying
- page up to date. It is assumed here that the user has no
- incoherent cached copies (i.e. the original page was obtained
- from a mechanism like get_user_pages()). The default
- implementation is a nop and should remain so on all coherent
- architectures. On incoherent architectures, this should flush
- the kernel cache for page (using page_address(page)).
-
-