drbd: --force option for disconnect
As the network connection can be lost at any time, a --force option
for disconnect is just a matter of completeness.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 6a6dde6..cd0459f 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1531,6 +1531,21 @@
struct drbd_nl_cfg_reply *reply)
{
int retcode;
+ struct disconnect dc;
+
+ memset(&dc, 0, sizeof(struct disconnect));
+ if (!disconnect_from_tags(mdev, nlp->tag_list, &dc)) {
+ retcode = ERR_MANDATORY_TAG;
+ goto fail;
+ }
+
+ if (dc.force) {
+ spin_lock_irq(&mdev->req_lock);
+ if (mdev->state.conn >= C_WF_CONNECTION)
+ _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), CS_HARD, NULL);
+ spin_unlock_irq(&mdev->req_lock);
+ goto done;
+ }
retcode = _drbd_request_state(mdev, NS(conn, C_DISCONNECTING), CS_ORDERED);
diff --git a/include/linux/drbd_nl.h b/include/linux/drbd_nl.h
index 6fc614b..ab6159e4 100644
--- a/include/linux/drbd_nl.h
+++ b/include/linux/drbd_nl.h
@@ -69,7 +69,9 @@
NL_BIT( 70, T_MANDATORY, dry_run)
)
-NL_PACKET(disconnect, 6, )
+NL_PACKET(disconnect, 6,
+ NL_BIT( 84, T_MAY_IGNORE, force)
+)
NL_PACKET(resize, 7,
NL_INT64( 29, T_MAY_IGNORE, resize_size)