FAULT_KVMALLOC 0x000000002
FAULT_PAGE_ALLOC 0x000000004
FAULT_PAGE_GET 0x000000008
+ FAULT_ALLOC_BIO 0x000000010 (obsolete)
FAULT_ALLOC_NID 0x000000020
FAULT_ORPHAN 0x000000040
FAULT_BLOCK 0x000000080
FAULT_CHECKPOINT 0x000001000
FAULT_DISCARD 0x000002000
FAULT_WRITE_IO 0x000004000
+ FAULT_SLAB_ALLOC 0x000008000
=================== ===========
mode=%s Control block allocation mode which supports "adaptive"
and "lfs". In "lfs" mode, there should be no random