From: Philipp Reisner Date: Tue, 15 Feb 2011 10:09:33 +0000 (+0100) Subject: drbd: implemented receiving of P_CONN_ST_CHG_REQ X-Git-Tag: firefly_0821_release~3680^2~1419^2~18^2~461 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=047cd4a682b09a7bc5dd5610262405bb085f8b19;p=firefly-linux-kernel-4.4.55.git drbd: implemented receiving of P_CONN_ST_CHG_REQ Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 4363b393a128..b287bad4767f 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1219,6 +1219,7 @@ extern int drbd_send_ov_request(struct drbd_conf *mdev,sector_t sector,int size) extern int drbd_send_bitmap(struct drbd_conf *mdev); extern int _drbd_send_bitmap(struct drbd_conf *mdev); extern int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode); +extern int conn_send_sr_reply(struct drbd_tconn *tconn, enum drbd_state_rv retcode); extern void drbd_free_bc(struct drbd_backing_dev *ldev); extern void drbd_mdev_cleanup(struct drbd_conf *mdev); void drbd_print_uuids(struct drbd_conf *mdev, const char *text); diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index e0efc918a5e6..592f0c949fd0 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -990,6 +990,16 @@ int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode) return drbd_send_cmd(mdev, USE_META_SOCKET, P_STATE_CHG_REPLY, &p.head, sizeof(p)); } +int conn_send_sr_reply(struct drbd_tconn *tconn, enum drbd_state_rv retcode) +{ + struct p_req_state_reply p; + enum drbd_packet cmd = tconn->agreed_pro_version < 100 ? P_STATE_CHG_REPLY : P_CONN_ST_CHG_REPLY; + + p.retcode = cpu_to_be32(retcode); + + return conn_send_cmd(tconn, 0, USE_META_SOCKET, cmd, &p.head, sizeof(p)); +} + int fill_bitmap_rle_bits(struct drbd_conf *mdev, struct p_compressed_bm *p, struct bm_xfer_ctx *c) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 2a1094aa35b0..c85d290beed3 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3232,9 +3232,14 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packet cmd, mask = convert_state(mask); val = convert_state(val); - rv = drbd_change_state(mdev, CS_VERBOSE, mask, val); + if (cmd == P_CONN_ST_CHG_REQ) { + rv = conn_request_state(mdev->tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY); + conn_send_sr_reply(mdev->tconn, rv); + } else { + rv = drbd_change_state(mdev, CS_VERBOSE, mask, val); + drbd_send_sr_reply(mdev, rv); + } - drbd_send_sr_reply(mdev, rv); drbd_md_sync(mdev); return true; @@ -3768,6 +3773,7 @@ static struct data_cmd drbd_cmd_handler[] = { [P_CSUM_RS_REQUEST] = { 1, sizeof(struct p_block_req), receive_DataRequest }, [P_DELAY_PROBE] = { 0, sizeof(struct p_delay_probe93), receive_skip }, [P_OUT_OF_SYNC] = { 0, sizeof(struct p_block_desc), receive_out_of_sync }, + [P_CONN_ST_CHG_REQ] = { 0, sizeof(struct p_req_state), receive_req_state }, /* anything missing from this table is in * the asender_tbl, see get_asender_cmd */ [P_MAX_CMD] = { 0, 0, NULL }, diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h index d312d84b8410..5fdbdf0be707 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -63,6 +63,7 @@ enum chg_state_flags { CS_SERIALIZE = 8, CS_ORDERED = CS_WAIT_COMPLETE + CS_SERIALIZE, CS_NO_CSTATE_CHG = 16, /* Do not display changes in cstate. Internal to drbd_state.c */ + CS_LOCAL_ONLY = 32, /* Do not consider a device pair wide state change */ }; extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev,