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drbd: implemented receiving of P_CONN_ST_CHG_REQ

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2011-02-15 11:09:33 +01:00
parent fc3b10a45f
commit 047cd4a682
4 changed files with 20 additions and 2 deletions
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1
drivers/block/drbd/drbd_int.h
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@ -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);

10
drivers/block/drbd/drbd_main.c
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@ -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)

10
drivers/block/drbd/drbd_receiver.c
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@ -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 },

1
drivers/block/drbd/drbd_state.h
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@ -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,