vm_highmem_is_dirtyable 361 include/linux/writeback.h extern int vm_highmem_is_dirtyable; vm_highmem_is_dirtyable 1669 kernel/sysctl.c .data = &vm_highmem_is_dirtyable, vm_highmem_is_dirtyable 1670 kernel/sysctl.c .maxlen = sizeof(vm_highmem_is_dirtyable), vm_highmem_is_dirtyable 86 mm/page-writeback.c int vm_highmem_is_dirtyable; vm_highmem_is_dirtyable 377 mm/page-writeback.c if (!vm_highmem_is_dirtyable)