X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=fs%2Fchar_dev.c;h=e5b9df993b934f0876666f7c50153a467ef7c939;hb=092e0e7e520a1fca03e13c9f2d157432a8657ff2;hp=e4a3318b812ad3c8da8c90ba97b752147d0229bf;hpb=776c163b1b93c8dfa5edba885bc2bfbc2d228a5f;p=mv-sheeva.git

diff --git a/fs/char_dev.c b/fs/char_dev.c
index e4a3318b812..e5b9df993b9 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -40,7 +40,9 @@ struct backing_dev_info directly_mappable_cdev_bdi = {
 #endif
 		/* permit direct mmap, for read, write or exec */
 		BDI_CAP_MAP_DIRECT |
-		BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP),
+		BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP |
+		/* no writeback happens */
+		BDI_CAP_NO_ACCT_AND_WRITEBACK),
 };
 
 static struct kobj_map *cdev_map;