Jiang, Yunhong
2009-Mar-05 09:11 UTC
[Xen-devel] [PATCH][UPDATED] Page offline support in Xen side
This patch add support to offline a page. The basical idea is, when a page is assigned, it will be marked offline pending and be moved out of buddy when freed, when a page is free, it will be moved out of buddy directly. One notice after this change is, now the page->count_info is not always 0, especially for shadow page, since the PGC_offlining bit may be set. Signed-off-by: Wang, Shane <shane.wang@intel.com> Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com> The offline/online action is protected by heap_lock, but we need make sure other code will not clean the flags, this is achieved by next patch to be sent. Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel