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| author | Yan, Zheng <zyan@redhat.com> | 2017-05-05 18:47:37 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-05-24 18:10:51 +0200 |
| commit | 0a2ad541071f99eaf4589c3551176fca191c1ee2 (patch) | |
| tree | fbd9e51e711507478de1f4e4e59de34035a34639 /net/ceph | |
| parent | 293dffaad8d500e1a5336eeb90d544cf40d4fbd8 (diff) | |
| download | lwn-0a2ad541071f99eaf4589c3551176fca191c1ee2.tar.gz lwn-0a2ad541071f99eaf4589c3551176fca191c1ee2.zip | |
libceph: cleanup old messages according to reconnect seq
when reopen a connection, use 'reconnect seq' to clean up
messages that have already been received by peer.
Link: http://tracker.ceph.com/issues/18690
Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'net/ceph')
| -rw-r--r-- | net/ceph/messenger.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index d7ab481b2508..588a91930051 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2228,10 +2228,18 @@ static void process_ack(struct ceph_connection *con) struct ceph_msg *m; u64 ack = le64_to_cpu(con->in_temp_ack); u64 seq; + bool reconnect = (con->in_tag == CEPH_MSGR_TAG_SEQ); + struct list_head *list = reconnect ? &con->out_queue : &con->out_sent; - while (!list_empty(&con->out_sent)) { - m = list_first_entry(&con->out_sent, struct ceph_msg, - list_head); + /* + * In the reconnect case, con_fault() has requeued messages + * in out_sent. We should cleanup old messages according to + * the reconnect seq. + */ + while (!list_empty(list)) { + m = list_first_entry(list, struct ceph_msg, list_head); + if (reconnect && m->needs_out_seq) + break; seq = le64_to_cpu(m->hdr.seq); if (seq > ack) break; @@ -2240,6 +2248,7 @@ static void process_ack(struct ceph_connection *con) m->ack_stamp = jiffies; ceph_msg_remove(m); } + prepare_read_tag(con); } |