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Commit 5b3a4db3 authored by Sage Weil's avatar Sage Weil
Browse files

ceph: fix up unexpected message handling 



Fix skipping of unexpected message types from osd, mon.

Clean up pr_info and debug output.

Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent bcd2cbd1

fs/ceph/messenger.c

+3 −2
Original line number Diff line number Diff line
@@ -1361,7 +1361,7 @@ static int read_partial_message(struct ceph_connection *con) 
		con->in_msg = ceph_alloc_msg(con, &con->in_hdr, &skip);

		if (skip) {

			/* skip this message */

			pr_err("alloc_msg returned NULL, skipping message\n");

			dout("alloc_msg returned NULL, skipping message\n");

			con->in_base_pos = -front_len - middle_len - data_len -

				sizeof(m->footer);

			con->in_tag = CEPH_MSGR_TAG_READY;
@@ -1370,7 +1370,8 @@ static int read_partial_message(struct ceph_connection *con) 
		if (IS_ERR(con->in_msg)) {

			ret = PTR_ERR(con->in_msg);

			con->in_msg = NULL;

			con->error_msg = "error allocating memory for incoming message";

			con->error_msg =

				"error allocating memory for incoming message";

			return ret;

		}

		m = con->in_msg;

fs/ceph/mon_client.c

+9 −5
Original line number Diff line number Diff line
@@ -763,7 +763,7 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con, 
	struct ceph_mon_client *monc = con->private;

	int type = le16_to_cpu(hdr->type);

	int front_len = le32_to_cpu(hdr->front_len);

	struct ceph_msg *m;

	struct ceph_msg *m = NULL;



	*skip = 0;
@@ -777,13 +777,17 @@ static struct ceph_msg *mon_alloc_msg(struct ceph_connection *con, 
	case CEPH_MSG_AUTH_REPLY:

		m = ceph_msgpool_get(&monc->msgpool_auth_reply, front_len);

		break;

	default:

		return NULL;

	case CEPH_MSG_MON_MAP:

	case CEPH_MSG_MDS_MAP:

	case CEPH_MSG_OSD_MAP:

		m = ceph_msg_new(type, front_len, 0, 0, NULL);

		break;

	}



	if (!m)

	if (!m) {

		pr_info("alloc_msg unknown type %d\n", type);

		*skip = 1;



	}

	return m;

}

fs/ceph/osd_client.c

+31 −10
Original line number Diff line number Diff line
@@ -1396,31 +1396,30 @@ static void dispatch(struct ceph_connection *con, struct ceph_msg *msg) 
	ceph_msg_put(msg);

}



static struct ceph_msg *alloc_msg(struct ceph_connection *con,

/*

 * lookup and return message for incoming reply

 */

static struct ceph_msg *get_reply(struct ceph_connection *con,

				  struct ceph_msg_header *hdr,

				  int *skip)

{

	struct ceph_osd *osd = con->private;

	struct ceph_osd_client *osdc = osd->o_osdc;

	int type = le16_to_cpu(hdr->type);

	int front = le32_to_cpu(hdr->front_len);

	int data_len = le32_to_cpu(hdr->data_len);

	struct ceph_msg *m;

	struct ceph_osd_request *req;

	int front = le32_to_cpu(hdr->front_len);

	int data_len = le32_to_cpu(hdr->data_len);

	u64 tid;

	int err;



	*skip = 0;

	if (type != CEPH_MSG_OSD_OPREPLY)

		return NULL;



	tid = le64_to_cpu(hdr->tid);

	mutex_lock(&osdc->request_mutex);

	req = __lookup_request(osdc, tid);

	if (!req) {

		*skip = 1;

		m = NULL;

		dout("alloc_msg unknown tid %llu\n", tid);

		pr_info("alloc_msg unknown tid %llu from osd%d\n", tid,

			osd->o_osd);

		goto out;

	}

	m = __get_next_reply(con, req, front);
@@ -1437,11 +1436,33 @@ static struct ceph_msg *alloc_msg(struct ceph_connection *con, 
			m = ERR_PTR(err);

		}

	}

	*skip = 0;



out:

	mutex_unlock(&osdc->request_mutex);



	return m;



}



static struct ceph_msg *alloc_msg(struct ceph_connection *con,

				  struct ceph_msg_header *hdr,

				  int *skip)

{

	struct ceph_osd *osd = con->private;

	int type = le16_to_cpu(hdr->type);

	int front = le32_to_cpu(hdr->front_len);



	switch (type) {

	case CEPH_MSG_OSD_MAP:

		return ceph_msg_new(type, front, 0, 0, NULL);

	case CEPH_MSG_OSD_OPREPLY:

		return get_reply(con, hdr, skip);

	default:

		pr_info("alloc_msg unexpected msg type %d from osd%d\n", type,

			osd->o_osd);

		*skip = 1;

		return NULL;

	}

}



/*