diff options
| author | Alex Elder <elder@inktank.com> | 2013-03-04 22:29:57 -0600 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-01 21:16:41 -0700 |
| commit | ebf18f47093e968105767eed4a0aa155e86b224e (patch) | |
| tree | 90122481017a894850e46b8c86987bd31548fddc /fs | |
| parent | 27fa83852ba275361eaa1a1283cf6704fa8191a6 (diff) | |
| download | linux-ebf18f47093e968105767eed4a0aa155e86b224e.tar.bz2 | |
ceph: only set message data pointers if non-empty
Change it so we only assign outgoing data information for messages
if there is outgoing data to send.
This then allows us to add a few more (currently commented-out)
assertions.
This is related to:
http://tracker.ceph.com/issues/4284
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ceph/mds_client.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index 3b2aa8702ae0..600d770d70f7 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -1721,7 +1721,11 @@ static struct ceph_msg *create_request_message(struct ceph_mds_client *mdsc, msg->front.iov_len = p - msg->front.iov_base; msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); - ceph_msg_data_set_pages(msg, req->r_pages, req->r_data_len, 0); + if (req->r_data_len) { + /* outbound data set only by ceph_sync_setxattr() */ + BUG_ON(!req->r_pages); + ceph_msg_data_set_pages(msg, req->r_pages, req->r_data_len, 0); + } msg->hdr.data_len = cpu_to_le32(req->r_data_len); msg->hdr.data_off = cpu_to_le16(0); @@ -2603,10 +2607,13 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc, goto fail; } - ceph_msg_data_set_pagelist(reply, pagelist); if (recon_state.flock) reply->hdr.version = cpu_to_le16(2); - reply->hdr.data_len = cpu_to_le32(pagelist->length); + if (pagelist->length) { + /* set up outbound data if we have any */ + reply->hdr.data_len = cpu_to_le32(pagelist->length); + ceph_msg_data_set_pagelist(reply, pagelist); + } ceph_con_send(&session->s_con, reply); mutex_unlock(&session->s_mutex); |