tree 6c2e2d27e81d784faa0481500f1cecc613ff1167
parent 95d01fc664b9476e0d18e3d745bb209a42a33588
author Wu Fengguang <fengguang.wu@intel.com> 1260962398 +0100
committer Andi Kleen <ak@linux.intel.com> 1260962398 +0100

HWPOISON: detect free buddy pages explicitly

Most free pages in the buddy system have no PG_buddy set.
Introduce is_free_buddy_page() for detecting them reliably.

CC: Nick Piggin <npiggin@suse.de>
CC: Mel Gorman <mel@linux.vnet.ibm.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>