X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fchar%2Fmem.c;h=e985b1c2730e800db599ad445371a8b100eee506;hb=092e0e7e520a1fca03e13c9f2d157432a8657ff2;hp=8ebd232132fd8daa0ed0051931f7a73949da3564;hpb=776c163b1b93c8dfa5edba885bc2bfbc2d228a5f;p=mv-sheeva.git

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 8ebd232132f..e985b1c2730 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -788,10 +788,11 @@ static const struct file_operations zero_fops = {
 /*
  * capabilities for /dev/zero
  * - permits private mappings, "copies" are taken of the source of zeros
+ * - no writeback happens
  */
 static struct backing_dev_info zero_bdi = {
 	.name		= "char/mem",
-	.capabilities	= BDI_CAP_MAP_COPY,
+	.capabilities	= BDI_CAP_MAP_COPY | BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 
 static const struct file_operations full_fops = {