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authorPhilipp Reisner <philipp.reisner@linbit.com>2011-03-14 10:54:47 (GMT)
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-05-09 13:10:38 (GMT)
commit02ee8f95fadf7c94b3d28df436a095152f6392b2 (patch)
tree14ae2da3dc302a7f061023d9ed0eab3c790ae458 /drivers
parent5ca1de0384dafe843de10fed843de26de740bca1 (diff)
downloadlinux-fsl-qoriq-02ee8f95fadf7c94b3d28df436a095152f6392b2.tar.xz
drbd: Force flag for the detach operation
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/drbd/drbd_main.c2
-rw-r--r--drivers/block/drbd/drbd_nl.c15
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 1b59ab3..bc8a8a7 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -495,7 +495,7 @@ static int cl_wide_st_chg(struct drbd_conf *mdev,
((os.role != R_PRIMARY && ns.role == R_PRIMARY) ||
(os.conn != C_STARTING_SYNC_T && ns.conn == C_STARTING_SYNC_T) ||
(os.conn != C_STARTING_SYNC_S && ns.conn == C_STARTING_SYNC_S) ||
- (os.disk != D_DISKLESS && ns.disk == D_DISKLESS))) ||
+ (os.disk != D_FAILED && ns.disk == D_FAILED))) ||
(os.conn >= C_CONNECTED && ns.conn == C_DISCONNECTING) ||
(os.conn == C_CONNECTED && ns.conn == C_VERIFY_S);
}
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index cabad39..6d116a2 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1337,17 +1337,32 @@ static int drbd_nl_detach(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
{
enum drbd_ret_code retcode;
int ret;
+ struct detach dt = {};
+
+ if (!detach_from_tags(mdev, nlp->tag_list, &dt)) {
+ reply->ret_code = ERR_MANDATORY_TAG;
+ goto out;
+ }
+
+ if (dt.detach_force) {
+ drbd_force_state(mdev, NS(disk, D_FAILED));
+ reply->ret_code = SS_SUCCESS;
+ goto out;
+ }
+
drbd_suspend_io(mdev); /* so no-one is stuck in drbd_al_begin_io */
retcode = drbd_request_state(mdev, NS(disk, D_FAILED));
/* D_FAILED will transition to DISKLESS. */
ret = wait_event_interruptible(mdev->misc_wait,
mdev->state.disk != D_FAILED);
drbd_resume_io(mdev);
+
if ((int)retcode == (int)SS_IS_DISKLESS)
retcode = SS_NOTHING_TO_DO;
if (ret)
retcode = ERR_INTR;
reply->ret_code = retcode;
+out:
return 0;
}