node_reclaim_mode
extern int node_reclaim_mode;
return node_reclaim_mode & (RECLAIM_ZONE|RECLAIM_WRITE|RECLAIM_UNMAP);
.data = &node_reclaim_mode,
.maxlen = sizeof(node_reclaim_mode),
int node_reclaim_mode __read_mostly;
if (node_reclaim_mode & RECLAIM_UNMAP)
.may_writepage = !!(node_reclaim_mode & RECLAIM_WRITE),
.may_unmap = !!(node_reclaim_mode & RECLAIM_UNMAP),