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authorJiri Kosina <jkosina@suse.cz>2010-09-24 14:03:37 +0200
committerJiri Kosina <jkosina@suse.cz>2010-09-24 14:03:37 +0200
commit73e6d6c6467771838c1fc6949e6768a12ed72464 (patch)
tree94dd60891869a0a275cd332c4e675cf0b101fcfa /drivers/char/mem.c
parent12e5272585901217e919da810c801e5084ee0cb1 (diff)
parenta850ea30374ebed32a0724742601861853fde869 (diff)
Merge branch 'master' into upstream
Diffstat (limited to 'drivers/char/mem.c')
-rw-r--r--drivers/char/mem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a398ecdbd758..1f528fad3516 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 = {