search for: clearpageforeign

...t;#define PageForeign(page) \ > (page->mapping == &xen_ia64_foreign_dummy_mapping) > >#define SetPageForeign(page, dtor) do { \ > set_page_private((page), (unsigned long)dtor); \ > (page)->mapping = &xen_ia64_foreign_dummy_mapping; \ >} while (0) > >#define ClearPageForeign(page) do { \ > (page)->mapping = NULL; \ > set_page_private((page), 0); \ >} while (0) > >#define PageForeignDestructor(page) \ > ( (void (*) (struct page *)) page_private((page)) ) > Hi, Isaku, (page)->mapping is used to keep special destructor since that foreign page...

...n_ia64_foreign_dummy_mapping) >> > >> >#define SetPageForeign(page, dtor) do { \ >> > set_page_private((page), (unsigned long)dtor); \ >> > (page)->mapping = &xen_ia64_foreign_dummy_mapping; \ >> >} while (0) >> > >> >#define ClearPageForeign(page) do { \ >> > (page)->mapping = NULL; \ >> > set_page_private((page), 0); \ >> >} while (0) >> > >> >#define PageForeignDestructor(page) \ >> > ( (void (*) (struct page *)) page_private((page)) ) >> > >> >> Hi, Isaku...

...!pte_write(*virt_to_ptep(va))) + BUG_ON(HYPERVISOR_update_va_mapping( + va, pfn_pte(pfn, PAGE_KERNEL), 0)); + } else { + struct mmuext_op op; + + op.cmd = MMUEXT_UNPIN_TABLE; + op.arg1.mfn = pfn_to_mfn(pfn); + BUG_ON(HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF) < 0); + } ClearPageForeign(pte); set_page_count(pte, 1); Index: sle10-sp1-2007-01-10/include/asm-i386/mach-xen/asm/pgalloc.h =================================================================== --- sle10-sp1-2007-01-10.orig/include/asm-i386/mach-xen/asm/pgalloc.h 2007-01-10 13:33:54.000000000 +0100 +++ sle10-sp1-2007-01-10/...

Hi Keir: These two patches remove the need for netloop by performing the copying in netback and only if it is necessary. The rationale is that most packets will be processed without delay allowing them to be freed without copying at all. So instead of copying every packet destined to dom0 we''ll only copy those that linger longer than a specified amount of time (currently 0.5s). As it