drbd: don't start a resync without access to up-to-date Data
authorLars Ellenberg <lars.ellenberg@linbit.com>
Thu, 1 Apr 2010 14:59:32 +0000 (16:59 +0200)
committerPhilipp Reisner <philipp.reisner@linbit.com>
Mon, 17 May 2010 23:08:18 +0000 (01:08 +0200)
commit8d4ce82b3ccd755c8ba401469ced5286b1e02284
tree9cd1b789104e4570294893856b49d3fb150379b5
parentc3470cde57ea34d9b4bd34891ec040e46b9fb3bf
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>
drivers/block/drbd/drbd_main.c
drivers/block/drbd/drbd_strings.c