libceph: record bio length
The bio is the only data item type that doesn't record its full
length. Fix that.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index cdeebae..4fb870a 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -116,7 +116,10 @@
enum ceph_msg_data_type type;
union {
#ifdef CONFIG_BLOCK
- struct bio *bio;
+ struct {
+ struct bio *bio;
+ size_t bio_length;
+ };
#endif /* CONFIG_BLOCK */
struct {
struct page **pages; /* NOT OWNER. */
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index cb5b4e6..731bb9e 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -3032,6 +3032,7 @@
data = ceph_msg_data_create(CEPH_MSG_DATA_BIO);
BUG_ON(!data);
data->bio = bio;
+ data->bio_length = length;
msg->data = data;
msg->data_length = length;
