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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>
This commit is contained in:
Philipp Reisner 2010-12-03 15:22:48 +01:00
parent 42ff269d10
commit 2561b9c1f1
2 changed files with 18 additions and 1 deletions
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15
drivers/block/drbd/drbd_nl.c
View File

@ -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);

4
include/linux/drbd_nl.h
View File

@ -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)