mm: zcache/tmem/cleancache: s/flush/invalidate/

Complete the renaming from "flush" to "invalidate" across
both tmem frontends (cleancache and frontswap) and both tmem backends
(Xen and zcache), as required by akpm.

This change is completely cosmetic.

[v10: no change]
[v9: [email protected]: change "flush" to "invalidate", part 3]
Signed-off-by: Dan Magenheimer <[email protected]>
Cc: Kamezawa Hiroyuki <[email protected]>
Cc: Jan Beulich <[email protected]>
Acked-by: Seth Jennings <[email protected]>
Cc: Jeremy Fitzhardinge <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Nitin Gupta <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Rik Riel <[email protected]>
Cc: Andrew Morton <[email protected]>
[v11: Remove the frontswap part]
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index 66fb63b..42e55de 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -28,14 +28,9 @@
 			pgoff_t, struct page *);
 	void (*put_page)(int, struct cleancache_filekey,
 			pgoff_t, struct page *);
-	/*
-	 * NOTE: per akpm, flush_page, flush_inode and flush_fs will be
-	 * renamed to invalidate_* in a later commit in which all
-	 * dependencies (i.e Xen, zcache) will be renamed simultaneously
-	 */
-	void (*flush_page)(int, struct cleancache_filekey, pgoff_t);
-	void (*flush_inode)(int, struct cleancache_filekey);
-	void (*flush_fs)(int);
+	void (*invalidate_page)(int, struct cleancache_filekey, pgoff_t);
+	void (*invalidate_inode)(int, struct cleancache_filekey);
+	void (*invalidate_fs)(int);
 };
 
 extern struct cleancache_ops