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OpenCloudOS-Kernel
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drbd: Implemented conn_send_state_req() 

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 2011-02-11 15:11:24 +01:00
parent 8410da8f0e
commit cf29c9d8c8
3 changed files with 21 additions and 6 deletions
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19
drivers/block/drbd/drbd_int.h
View File

@ -221,8 +221,10 @@ enum drbd_packet {
P_DELAY_PROBE = 0x27, /* is used on BOTH sockets */
P_OUT_OF_SYNC = 0x28, /* Mark as out of sync (Outrunning), data socket */
P_RS_CANCEL = 0x29, /* meta: Used to cancel RS_DATA_REQUEST packet by SyncSource */
P_CONN_ST_CHG_REQ = 0x2a, /* data sock: Connection wide state request */
P_CONN_ST_CHG_REPLY = 0x2b, /* meta sock: Connection side state req reply */
P_MAX_CMD = 0x2A,
P_MAX_CMD = 0x2c,
P_MAY_IGNORE = 0x100, /* Flag to test if (cmd > P_MAY_IGNORE) ... */
P_MAX_OPT_CMD = 0x101,
@ -1177,6 +1179,8 @@ extern int drbd_send_uuids(struct drbd_conf *mdev);
extern int drbd_send_uuids_skip_initial_sync(struct drbd_conf *mdev);
extern int drbd_gen_and_send_sync_uuid(struct drbd_conf *mdev);
extern int drbd_send_sizes(struct drbd_conf *mdev, int trigger_reply, enum dds_flags flags);
extern int _conn_send_state_req(struct drbd_tconn *, int vnr, enum drbd_packet cmd,
union drbd_state, union drbd_state);
extern int _drbd_send_state(struct drbd_conf *mdev);
extern int drbd_send_state(struct drbd_conf *mdev);
extern int _conn_send_cmd(struct drbd_tconn *tconn, int vnr, struct socket *sock,
@ -1896,6 +1900,19 @@ static inline int drbd_send_ping_ack(struct drbd_tconn *tconn)
return conn_send_cmd(tconn, 0, USE_META_SOCKET, P_PING_ACK, &h, sizeof(h));
}
static inline int drbd_send_state_req(struct drbd_conf *mdev,
union drbd_state mask, union drbd_state val)
{
return _conn_send_state_req(mdev->tconn, mdev->vnr, P_STATE_CHG_REQ, mask, val);
}
static inline int conn_send_state_req(struct drbd_tconn *tconn,
union drbd_state mask, union drbd_state val)
{
enum drbd_packet cmd = tconn->agreed_pro_version < 100 ? P_STATE_CHG_REQ : P_CONN_ST_CHG_REQ;
return _conn_send_state_req(tconn, 0, cmd, mask, val);
}
static inline void drbd_thread_stop(struct drbd_thread *thi)
{
_drbd_thread_stop(thi, false, true);

6
drivers/block/drbd/drbd_main.c
View File

@ -970,15 +970,15 @@ int drbd_send_state(struct drbd_conf *mdev)
return ok;
}
int drbd_send_state_req(struct drbd_conf *mdev,
union drbd_state mask, union drbd_state val)
int _conn_send_state_req(struct drbd_tconn *tconn, int vnr, enum drbd_packet cmd,
union drbd_state mask, union drbd_state val)
{
struct p_req_state p;
p.mask = cpu_to_be32(mask.i);
p.val = cpu_to_be32(val.i);
return drbd_send_cmd(mdev, USE_DATA_SOCKET, P_STATE_CHG_REQ, &p.head, sizeof(p));
return conn_send_cmd(tconn, vnr, USE_DATA_SOCKET, cmd, &p.head, sizeof(p));
}
int drbd_send_sr_reply(struct drbd_conf *mdev, enum drbd_state_rv retcode)

2
drivers/block/drbd/drbd_state.c
View File

@ -37,9 +37,7 @@ struct after_state_chg_work {
struct completion *done;
};
extern void _tl_restart(struct drbd_conf *mdev, enum drbd_req_event what);
int drbd_send_state_req(struct drbd_conf *, union drbd_state, union drbd_state);
static int w_after_state_ch(struct drbd_work *w, int unused);
static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
union drbd_state ns, enum chg_state_flags flags);