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authorPhilipp Reisner <philipp.reisner@linbit.com>2010-12-03 15:22:48 +0100
committerPhilipp Reisner <philipp.reisner@linbit.com>2011-03-10 11:35:17 +0100
commit2561b9c1f1d63077c41903fc6ad58dc9ec47248b (patch)
tree79f4148dce59a9f696e680d70151312721f296cf
parent42ff269d1022a86be4f526cf674998c47b7ab856 (diff)
downloadop-kernel-dev-2561b9c1f1d63077c41903fc6ad58dc9ec47248b.zip
op-kernel-dev-2561b9c1f1d63077c41903fc6ad58dc9ec47248b.tar.gz
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>
-rw-r--r--drivers/block/drbd/drbd_nl.c15
-rw-r--r--include/linux/drbd_nl.h4
2 files changed, 18 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 6a6dde6c..cd0459f 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1531,6 +1531,21 @@ static int drbd_nl_disconnect(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl
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 6fc614b0..ab6159e4 100644
--- a/include/linux/drbd_nl.h
+++ b/include/linux/drbd_nl.h
@@ -69,7 +69,9 @@ NL_PACKET(net_conf, 5,
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)
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