search for: steal_for_cache

Populate-on-demand: Check pages being returned by the balloon driver This patch series is the second result of my work last summer on decreasing fragmentation of superpages in a guests'' p2m when using populate-on-demand. This patch series is against 4.1; I''m posting it to get feedback on the viability of getting a ported version of this patch into 4.2. As with the previous

..., take care of the paging type --- ./origin/xen/arch/x86/mm/p2m.c 2011-09-05 20:39:30.000000000 +0800 +++ ./b/xen/arch/x86/mm/p2m.c 2011-09-23 23:46:19.000000000 +0800 @@ -675,6 +675,23 @@ BUG_ON(p2md->pod.entry_count < 0); pod--; } + else if ( steal_for_cache && p2m_is_paging(t) ) + { + struct page_info *page; + /* alloc a new page to compensate the pod list */ + page = alloc_domheap_page(d, 0); + if ( unlikely(page == NULL) ) + { + goto out_entry_check; + }...