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path: root/drivers/block/drbd/drbd_state.c
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Diffstat (limited to 'drivers/block/drbd/drbd_state.c')
-rw-r--r--drivers/block/drbd/drbd_state.c56
1 files changed, 41 insertions, 15 deletions
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 8c9d0348736..2cf69b25f1e 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -37,6 +37,15 @@ struct after_state_chg_work {
struct completion *done;
};
+enum sanitize_state_warnings {
+ NO_WARNING,
+ ABORTED_ONLINE_VERIFY,
+ ABORTED_RESYNC,
+ CONNECTION_LOST_NEGOTIATING,
+ IMPLICITLY_UPGRADED_DISK,
+ IMPLICITLY_UPGRADED_PDSK,
+};
+
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);
@@ -44,7 +53,7 @@ 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 enum drbd_state_rv is_valid_transition(union drbd_state os, union drbd_state ns);
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state ns,
- const char **warn_sync_abort);
+ enum sanitize_state_warnings *warn);
static inline bool is_susp(union drbd_state s)
{
@@ -656,6 +665,21 @@ is_valid_transition(union drbd_state os, union drbd_state ns)
return rv;
}
+static void print_sanitize_warnings(struct drbd_conf *mdev, enum sanitize_state_warnings warn)
+{
+ static const char *msg_table[] = {
+ [NO_WARNING] = "",
+ [ABORTED_ONLINE_VERIFY] = "Online-verify aborted.",
+ [ABORTED_RESYNC] = "Resync aborted.",
+ [CONNECTION_LOST_NEGOTIATING] = "Connection lost while negotiating, no data!",
+ [IMPLICITLY_UPGRADED_DISK] = "Implicitly upgraded disk",
+ [IMPLICITLY_UPGRADED_PDSK] = "Implicitly upgraded pdsk",
+ };
+
+ if (warn != NO_WARNING)
+ dev_warn(DEV, "%s\n", msg_table[warn]);
+}
+
/**
* sanitize_state() - Resolves implicitly necessary additional changes to a state transition
* @mdev: DRBD device.
@@ -667,11 +691,14 @@ is_valid_transition(union drbd_state os, union drbd_state ns)
* to D_UNKNOWN. This rule and many more along those lines are in this function.
*/
static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state ns,
- const char **warn_sync_abort)
+ enum sanitize_state_warnings *warn)
{
enum drbd_fencing_p fp;
enum drbd_disk_state disk_min, disk_max, pdsk_min, pdsk_max;
+ if (warn)
+ *warn = NO_WARNING;
+
fp = FP_DONT_CARE;
if (get_ldev(mdev)) {
rcu_read_lock();
@@ -695,10 +722,9 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
/* An implication of the disk states onto the connection state */
/* Abort resync if a disk fails/detaches */
if (ns.conn > C_CONNECTED && (ns.disk <= D_FAILED || ns.pdsk <= D_FAILED)) {
- if (warn_sync_abort)
- *warn_sync_abort =
- ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T ?
- "Online-verify" : "Resync";
+ if (warn)
+ *warn = ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T ?
+ ABORTED_ONLINE_VERIFY : ABORTED_RESYNC;
ns.conn = C_CONNECTED;
}
@@ -709,7 +735,8 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
ns.disk = mdev->new_state_tmp.disk;
ns.pdsk = mdev->new_state_tmp.pdsk;
} else {
- dev_alert(DEV, "Connection lost while negotiating, no data!\n");
+ if (warn)
+ *warn = CONNECTION_LOST_NEGOTIATING;
ns.disk = D_DISKLESS;
ns.pdsk = D_UNKNOWN;
}
@@ -791,16 +818,16 @@ static union drbd_state sanitize_state(struct drbd_conf *mdev, union drbd_state
ns.disk = disk_max;
if (ns.disk < disk_min) {
- dev_warn(DEV, "Implicitly set disk from %s to %s\n",
- drbd_disk_str(ns.disk), drbd_disk_str(disk_min));
+ if (warn)
+ *warn = IMPLICITLY_UPGRADED_DISK;
ns.disk = disk_min;
}
if (ns.pdsk > pdsk_max)
ns.pdsk = pdsk_max;
if (ns.pdsk < pdsk_min) {
- dev_warn(DEV, "Implicitly set pdsk from %s to %s\n",
- drbd_disk_str(ns.pdsk), drbd_disk_str(pdsk_min));
+ if (warn)
+ *warn = IMPLICITLY_UPGRADED_PDSK;
ns.pdsk = pdsk_min;
}
@@ -875,12 +902,12 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
{
union drbd_state os;
enum drbd_state_rv rv = SS_SUCCESS;
- const char *warn_sync_abort = NULL;
+ enum sanitize_state_warnings ssw;
struct after_state_chg_work *ascw;
os = drbd_read_state(mdev);
- ns = sanitize_state(mdev, ns, &warn_sync_abort);
+ ns = sanitize_state(mdev, ns, &ssw);
if (ns.i == os.i)
return SS_NOTHING_TO_DO;
@@ -909,8 +936,7 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
return rv;
}
- if (warn_sync_abort)
- dev_warn(DEV, "%s aborted.\n", warn_sync_abort);
+ print_sanitize_warnings(mdev, ssw);
drbd_pr_state_change(mdev, os, ns, flags);