It's useful to keep memory defragmented so that all high-order page allocations have a chance to succeed, not simply transparent hugepages. Thus, allow balloon compaction for any system with memory compaction enabled, which is the defconfig. Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> --- mm/Kconfig | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/Kconfig b/mm/Kconfig --- a/mm/Kconfig +++ b/mm/Kconfig @@ -200,7 +200,7 @@ config SPLIT_PTLOCK_CPUS config BALLOON_COMPACTION bool "Allow for balloon memory compaction/migration" def_bool y - depends on TRANSPARENT_HUGEPAGE && VIRTIO_BALLOON + depends on COMPACTION && VIRTIO_BALLOON help Memory fragmentation introduced by ballooning might reduce significantly the number of 2MB contiguous memory blocks that can be -- 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>