virtio-balloon wants to try allocation only when that allocation does not cause OOM situation. Since there is no gfp flag which succeeds allocations only if there is plenty of free memory (i.e. higher watermark than other requests), virtio-balloon needs to watch for OOM notifier and release just allocated memory when OOM notifier is invoked. Currently virtio-balloon is using GFP_HIGHUSER[_MOVABLE] | __GFP_NOMEMALLOC | __GFP_NORETRY for allocation, but is GFP_HIGHUSER[_MOVABLE] | __GFP_NOMEMALLOC) & ~__GFP_DIRECT_RECLAIM supported (from MM subsystem's point of view) ? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
