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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-04-01 16:59:32 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2010-05-18 01:08:18 +0200 |
| commit | 8d4ce82b3ccd755c8ba401469ced5286b1e02284 (patch) | |
| tree | 9cd1b789104e4570294893856b49d3fb150379b5 | |
| parent | c3470cde57ea34d9b4bd34891ec040e46b9fb3bf (diff) | |
| download | linux-stable-8d4ce82b3ccd755c8ba401469ced5286b1e02284.tar.gz linux-stable-8d4ce82b3ccd755c8ba401469ced5286b1e02284.tar.bz2 linux-stable-8d4ce82b3ccd755c8ba401469ced5286b1e02284.zip | |
drbd: don't start a resync without access to up-to-date Data
In case both nodes are "inconsistent", invalidate would
have started a resync anyways, without a chance to ever
succeed, just filling the logs with warning messages.
Simply disallow that state change,
re-using the SS_NO_UP_TO_DATE_DISK return value.
This also changes the corresponding error string to
"Need access to UpToDate Data" -- I found the
"Refusing to be Primary without at least one UpToDate disk"
answer misleading in some situations anyways.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 3 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_strings.c | 2 |
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index b1ce5dc7c603..e181e405e244 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -684,6 +684,9 @@ static int is_valid_state(struct drbd_conf *mdev, union drbd_state ns) else if (ns.conn > C_CONNECTED && ns.pdsk < D_INCONSISTENT) rv = SS_NO_REMOTE_DISK; + else if (ns.conn > C_CONNECTED && ns.disk < D_UP_TO_DATE && ns.pdsk < D_UP_TO_DATE) + rv = SS_NO_UP_TO_DATE_DISK; + else if ((ns.conn == C_CONNECTED || ns.conn == C_WF_BITMAP_S || ns.conn == C_SYNC_SOURCE || diff --git a/drivers/block/drbd/drbd_strings.c b/drivers/block/drbd/drbd_strings.c index 76863e3f05be..85179e1fb50a 100644 --- a/drivers/block/drbd/drbd_strings.c +++ b/drivers/block/drbd/drbd_strings.c @@ -70,7 +70,7 @@ static const char *drbd_disk_s_names[] = { static const char *drbd_state_sw_errors[] = { [-SS_TWO_PRIMARIES] = "Multiple primaries not allowed by config", - [-SS_NO_UP_TO_DATE_DISK] = "Refusing to be Primary without at least one UpToDate disk", + [-SS_NO_UP_TO_DATE_DISK] = "Need access to UpToDate data", [-SS_NO_LOCAL_DISK] = "Can not resync without local disk", [-SS_NO_REMOTE_DISK] = "Can not resync without remote disk", [-SS_CONNECTED_OUTDATES] = "Refusing to be Outdated while Connected", |