[PATCH] update filemap_flush() comments

It provides a best-effort, minimum-latency "get all the writeout
underway" function.

diff --git a/mm/filemap.c b/mm/filemap.c
index 6205d0bbe2b2020dc4a8a281f4f62a605b7cbae9..b73b39fe06a156693b5734827e5c806f68366ea5 100644 (file)
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -161,7 +161,7 @@ EXPORT_SYMBOL(filemap_fdatawrite);
 
 /*
  * This is a mostly non-blocking flush.  Not suitable for data-integrity
- * purposes.
+ * purposes - I/O may not be started against all dirty pages.
  */
 int filemap_flush(struct address_space *mapping)
 {