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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-14 13:54:47 +0300 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-05-09 17:10:38 +0400 |
| commit | 02ee8f95fadf7c94b3d28df436a095152f6392b2 (patch) | |
| tree | 14ae2da3dc302a7f061023d9ed0eab3c790ae458 /drivers/block/drbd/drbd_nl.c | |
| parent | 5ca1de0384dafe843de10fed843de26de740bca1 (diff) | |
| download | linux-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/block/drbd/drbd_nl.c')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index cabad39f908c..6d116a2b2321 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; } |