diff options
| author | John Spray <john.spray@redhat.com> | 2014-10-30 20:15:26 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@redhat.com> | 2014-12-17 20:09:51 +0300 |
| commit | 7cfa0313d0dc52e4da9f196f8ad5bfdf266fc1fb (patch) | |
| tree | 528faa6aa740a07deb3e0ecabc8202dc7a9c815d | |
| parent | d4e1a4e0db439209672f9803f9f23b0123fb09aa (diff) | |
| download | linux-7cfa0313d0dc52e4da9f196f8ad5bfdf266fc1fb.tar.xz | |
ceph: message versioning fixes
There were two places we were assigning version in host byte order
instead of network byte order.
Also in MSG_CLIENT_SESSION we weren't setting compat_version in the
header to reflect continued compatability with older MDSs.
Fixes: http://tracker.ceph.com/issues/9945
Signed-off-by: John Spray <john.spray@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
| -rw-r--r-- | fs/ceph/mds_client.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 9f00853f6d42..387a48993d34 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -860,8 +860,11 @@ static struct ceph_msg *create_session_open_msg(struct ceph_mds_client *mdsc, u6 /* * Serialize client metadata into waiting buffer space, using * the format that userspace expects for map<string, string> + * + * ClientSession messages with metadata are v2 */ - msg->hdr.version = 2; /* ClientSession messages with metadata are v2 */ + msg->hdr.version = cpu_to_le16(2); + msg->hdr.compat_version = cpu_to_le16(1); /* The write pointer, following the session_head structure */ p = msg->front.iov_base + sizeof(*h); @@ -1872,7 +1875,7 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, goto out_free2; } - msg->hdr.version = 2; + msg->hdr.version = cpu_to_le16(2); msg->hdr.tid = cpu_to_le64(req->r_tid); head = msg->front.iov_base; |