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authorLinus Torvalds <torvalds@linux-foundation.org>2010-09-22 09:12:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-09-22 09:12:37 -0700
commitb68e9d4581cbb211be3e174d3445b4917aacbcf6 (patch)
treec7ea337b623abacdb546d30a39037dd029f20a34 /drivers/char
parent62f1b494d82272819570d715eb6633887a9fde20 (diff)
parent692ebd17c2905313fff3c504c249c6a0faad16ec (diff)
downloadop-kernel-dev-b68e9d4581cbb211be3e174d3445b4917aacbcf6.zip
op-kernel-dev-b68e9d4581cbb211be3e174d3445b4917aacbcf6.tar.gz
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: bdi: Fix warnings in __mark_inode_dirty for /dev/zero and friends char: Mark /dev/zero and /dev/kmem as not capable of writeback bdi: Initialize noop_backing_dev_info properly cfq-iosched: fix a kernel OOPs when usb key is inserted block: fix blk_rq_map_kern bio direction flag cciss: freeing uninitialized data on error path
Diffstat (limited to 'drivers/char')
-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 a398ecd..1f528fa 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 = {
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