GFP_MOVABLE_MASK 110 include/linux/gfp.h WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK); GFP_MOVABLE_MASK 110 mm/shmem.c return alloc_pages((gfp_mask & ~GFP_MOVABLE_MASK) | __GFP_ZERO,