X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fmpage.c;h=fdfae9fa98cda52f26b730ab6786db084124d279;hb=b5a7e97039a80fae673ccc115ce595d5b88fb4ee;hp=0afc809e46e09b53cb767e56795fba3139c4b181;hpb=751516f0a9bad32544f40f471037c0e45fb639c9;p=karo-tx-linux.git

diff --git a/fs/mpage.c b/fs/mpage.c
index 0afc809e46e0..fdfae9fa98cd 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -27,6 +27,7 @@
 #include <linux/writeback.h>
 #include <linux/backing-dev.h>
 #include <linux/pagevec.h>
+#include <linux/cleancache.h>
 
 /*
  * I/O completion handler for multipage BIOs.
@@ -271,6 +272,12 @@ do_mpage_readpage(struct bio *bio, struct page *page, unsigned nr_pages,
 		SetPageMappedToDisk(page);
 	}
 
+	if (fully_mapped && blocks_per_page == 1 && !PageUptodate(page) &&
+	    cleancache_get_page(page) == 0) {
+		SetPageUptodate(page);
+		goto confused;
+	}
+
 	/*
 	 * This page will go to BIO.  Do we need to send this BIO off first?
 	 */