On Thu, Jul 30, 2015 at 06:03:12PM +0100, David Vrabel wrote: > Pages returned by alloc_xenballooned_pages() will be used for grant > mapping which will call set_phys_to_machine() (in PV guests). > > Ballooned pages are set as INVALID_P2M_ENTRY in the p2m and thus may > be using the (shared) missing tables and a subsequent > set_phys_to_machine() will need to allocate new tables. > > Since the grant mapping may be done from a context that cannot sleep, > the p2m entries must already be allocated. > > Signed-off-by: David Vrabel <david.vra...@citrix.com>
Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> Daniel PS FYI, next week I am on vacation. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
