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drbd: Calculate and provide ns_min to the w_after_conn_state_ch() work 

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 2011-03-29 14:01:02 +02:00
parent 5f082f98f5
commit 8c7e16c39f
1 changed files with 31 additions and 11 deletions
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42
drivers/block/drbd/drbd_state.c
View File

@ -1358,6 +1358,7 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
struct after_conn_state_chg_work {
struct drbd_work w;
enum drbd_conns oc;
union drbd_state ns_min;
union drbd_state ns_max; /* new, max state, over all mdevs */
enum chg_state_flags flags;
};
@ -1468,11 +1469,17 @@ conn_is_valid_transition(struct drbd_tconn *tconn, union drbd_state mask, union
return rv;
}
static union drbd_state
void
conn_set_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_state val,
enum chg_state_flags flags)
union drbd_state *pns_min, union drbd_state *pns_max, enum chg_state_flags flags)
{
union drbd_state ns, os, ms = { };
union drbd_state ns, os, ns_max = { };
union drbd_state ns_min = {
{ .role = R_MASK,
.peer = R_MASK,
.disk = D_MASK,
.pdsk = D_MASK
} };
struct drbd_conf *mdev;
enum drbd_state_rv rv;
int vnr;
@ -1492,13 +1499,26 @@ conn_set_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_state
if (rv < SS_SUCCESS)
BUG();
ms.role = max_role(mdev->state.role, ms.role);
ms.peer = max_role(mdev->state.peer, ms.peer);
ms.disk = max_t(enum drbd_disk_state, mdev->state.disk, ms.disk);
ms.pdsk = max_t(enum drbd_disk_state, mdev->state.pdsk, ms.pdsk);
ns.i = mdev->state.i;
ns_max.role = max_role(ns.role, ns_max.role);
ns_max.peer = max_role(ns.peer, ns_max.peer);
ns_max.conn = max_t(enum drbd_conns, ns.conn, ns_max.conn);
ns_max.disk = max_t(enum drbd_disk_state, ns.disk, ns_max.disk);
ns_max.pdsk = max_t(enum drbd_disk_state, ns.pdsk, ns_max.pdsk);
ns_min.role = min_role(ns.role, ns_min.role);
ns_min.peer = min_role(ns.peer, ns_min.peer);
ns_min.conn = min_t(enum drbd_conns, ns.conn, ns_min.conn);
ns_min.disk = min_t(enum drbd_disk_state, ns.disk, ns_min.disk);
ns_min.pdsk = min_t(enum drbd_disk_state, ns.pdsk, ns_min.pdsk);
}
return ms;
ns_min.susp = ns_max.susp = tconn->susp;
ns_min.susp_nod = ns_max.susp_nod = tconn->susp_nod;
ns_min.susp_fen = ns_max.susp_fen = tconn->susp_fen;
*pns_min = ns_min;
*pns_max = ns_max;
}
static enum drbd_state_rv
@ -1558,7 +1578,7 @@ _conn_request_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_
enum drbd_state_rv rv = SS_SUCCESS;
struct after_conn_state_chg_work *acscw;
enum drbd_conns oc = tconn->cstate;
union drbd_state ns_max, os;
union drbd_state ns_max, ns_min, os;
rv = is_valid_conn_transition(oc, val.conn);
if (rv < SS_SUCCESS)
@ -1576,13 +1596,13 @@ _conn_request_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_
}
conn_old_common_state(tconn, &os, &flags);
ns_max = conn_set_state(tconn, mask, val, flags);
ns_max.conn = val.conn;
conn_set_state(tconn, mask, val, &ns_min, &ns_max, flags);
conn_pr_state_change(tconn, os, ns_max, flags);
acscw = kmalloc(sizeof(*acscw), GFP_ATOMIC);
if (acscw) {
acscw->oc = os.conn;
acscw->ns_min = ns_min;
acscw->ns_max = ns_max;
acscw->flags = flags;
acscw->w.cb = w_after_conn_state_ch;