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yaml
---
r: 345801
b: refs/heads/master
c: d50eee2
h: refs/heads/master
i:
  345799: 5fde6e2
v: v3
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Philipp Reisner committed Sep 28, 2011
1 parent a731cbb commit 0346bd0
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Showing 2 changed files with 17 additions and 11 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2a67d8b93b3363d4a5608d16d510a4bf6b3863fb
refs/heads/master: d50eee21c45769252f0b54a5804e8b2db735d288
26 changes: 16 additions & 10 deletions trunk/drivers/block/drbd/drbd_state.c
Original file line number Diff line number Diff line change
Expand Up @@ -45,10 +45,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
union drbd_state ns, enum chg_state_flags flags);
static void after_conn_state_ch(struct drbd_tconn *tconn, union drbd_state os,
union drbd_state ns, enum chg_state_flags flags);
static enum drbd_state_rv is_valid_state(struct drbd_conf *, union drbd_state);
static enum drbd_state_rv is_valid_soft_transition(union drbd_state, union drbd_state);
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os,
union drbd_state ns, const char **warn_sync_abort);

/**
* cl_wide_st_chg() - true if the state change is a cluster wide one
Expand Down Expand Up @@ -98,6 +94,15 @@ void drbd_force_state(struct drbd_conf *mdev,
drbd_change_state(mdev, CS_HARD, mask, val);
}

static enum drbd_state_rv is_valid_state(struct drbd_conf *, union drbd_state);
static enum drbd_state_rv is_valid_state_transition(struct drbd_conf *,
union drbd_state,
union drbd_state);
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state os,
union drbd_state ns, const char **warn_sync_abort);
int drbd_send_state_req(struct drbd_conf *,
union drbd_state, union drbd_state);

static enum drbd_state_rv
_req_st_cond(struct drbd_conf *mdev, union drbd_state mask,
union drbd_state val)
Expand All @@ -123,7 +128,7 @@ _req_st_cond(struct drbd_conf *mdev, union drbd_state mask,
if (!rv) {
rv = is_valid_state(mdev, ns);
if (rv == SS_SUCCESS) {
rv = is_valid_soft_transition(os, ns);
rv = is_valid_state_transition(mdev, ns, os);
if (rv == SS_SUCCESS)
rv = SS_UNKNOWN_ERROR; /* cont waiting, otherwise fail. */
}
Expand Down Expand Up @@ -166,7 +171,7 @@ drbd_req_state(struct drbd_conf *mdev, union drbd_state mask,
if (cl_wide_st_chg(mdev, os, ns)) {
rv = is_valid_state(mdev, ns);
if (rv == SS_SUCCESS)
rv = is_valid_soft_transition(os, ns);
rv = is_valid_state_transition(mdev, ns, os);
spin_unlock_irqrestore(&mdev->tconn->req_lock, flags);

if (rv < SS_SUCCESS) {
Expand Down Expand Up @@ -339,13 +344,14 @@ is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
}

/**
* is_valid_soft_transition() - Returns an SS_ error code if the state transition is not possible
* is_valid_state_transition() - Returns an SS_ error code if the state transition is not possible
* @mdev: DRBD device.
* @ns: new state.
* @os: old state.
*/
static enum drbd_state_rv
is_valid_soft_transition(union drbd_state os, union drbd_state ns)
is_valid_state_transition(struct drbd_conf *mdev, union drbd_state ns,
union drbd_state os)
{
enum drbd_state_rv rv = SS_SUCCESS;

Expand Down Expand Up @@ -651,9 +657,9 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
this happen...*/

if (is_valid_state(mdev, os) == rv)
rv = is_valid_soft_transition(os, ns);
rv = is_valid_state_transition(mdev, ns, os);
} else
rv = is_valid_soft_transition(os, ns);
rv = is_valid_state_transition(mdev, ns, os);
}

if (rv < SS_SUCCESS) {
Expand Down

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