include/linux/compaction.h: fix potential build error

Declaration of struct node is required regardless. On UMA systems, including compaction.h without preceding node.h shouldn't cause a build error. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Yu Zhao <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Acked-by: Michal Hocko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
CarlFK · Mar 6, 2019 · ace451e · ace451e
1 parent daf3538
commit ace451e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
@@ -226,8 +226,8 @@ static inline void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_i
 
 #endif /* CONFIG_COMPACTION */
 
-#if defined(CONFIG_COMPACTION) && defined(CONFIG_SYSFS) && defined(CONFIG_NUMA)
 struct node;
+#if defined(CONFIG_COMPACTION) && defined(CONFIG_SYSFS) && defined(CONFIG_NUMA)
 extern int compaction_register_node(struct node *node);
 extern void compaction_unregister_node(struct node *node);