6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Xiubo Li <xiubli@xxxxxxxxxx> [ Upstream commit 321e3c3de53c7530cd518219d01f04e7e32a9d23 ] The cursor is no longer initialized in the OSD client, causing the sparse read state machine to fall into an infinite loop. The cursor should be initialized in IN_S_PREPARE_SPARSE_DATA state. [ idryomov: use msg instead of con->in_msg, changelog ] Link: https://tracker.ceph.com/issues/64607 Fixes: 8e46a2d068c9 ("libceph: just wait for more data to be available on the socket") Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx> Reviewed-by: Ilya Dryomov <idryomov@xxxxxxxxx> Tested-by: Luis Henriques <lhenriques@xxxxxxx> Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/ceph/messenger_v2.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ceph/messenger_v2.c b/net/ceph/messenger_v2.c index a901cae2f1060..f9ed6bf6c4776 100644 --- a/net/ceph/messenger_v2.c +++ b/net/ceph/messenger_v2.c @@ -2038,6 +2038,9 @@ static int prepare_sparse_read_data(struct ceph_connection *con) if (!con_secure(con)) con->in_data_crc = -1; + ceph_msg_data_cursor_init(&con->v2.in_cursor, msg, + msg->sparse_read_total); + reset_in_kvecs(con); con->v2.in_state = IN_S_PREPARE_SPARSE_DATA_CONT; con->v2.data_len_remain = data_len(msg); -- 2.43.0
