diff options
| author | Ilya Dryomov <idryomov@gmail.com> | 2017-04-13 12:17:38 +0200 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-05-04 09:19:23 +0200 |
| commit | bbead745d96cfd51aaa332bdeab300862c7a8061 (patch) | |
| tree | 42814bbd4ace976b27042d519aa4cab401fae78e /drivers/block | |
| parent | 5769ed0cb12dcd135251e546863196cec0b58e34 (diff) | |
| download | linux-bbead745d96cfd51aaa332bdeab300862c7a8061.tar.bz2 | |
rbd: ignore unlock errors
Currently the lock_state is set to UNLOCKED (preventing further I/O),
but RELEASED_LOCK notification isn't sent. Be consistent with userspace
and treat ceph_cls_unlock() errors as the image is unlocked.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/rbd.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 50395af7a9a6..423de775aabb 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3097,7 +3097,7 @@ static int rbd_lock(struct rbd_device *rbd_dev) /* * lock_rwsem must be held for write */ -static int rbd_unlock(struct rbd_device *rbd_dev) +static void rbd_unlock(struct rbd_device *rbd_dev) { struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc; char cookie[32]; @@ -3105,19 +3105,16 @@ static int rbd_unlock(struct rbd_device *rbd_dev) WARN_ON(!__rbd_is_lock_owner(rbd_dev)); - rbd_dev->lock_state = RBD_LOCK_STATE_UNLOCKED; - format_lock_cookie(rbd_dev, cookie); ret = ceph_cls_unlock(osdc, &rbd_dev->header_oid, &rbd_dev->header_oloc, RBD_LOCK_NAME, cookie); - if (ret && ret != -ENOENT) { - rbd_warn(rbd_dev, "cls_unlock failed: %d", ret); - return ret; - } + if (ret && ret != -ENOENT) + rbd_warn(rbd_dev, "failed to unlock: %d", ret); + /* treat errors as the image is unlocked */ + rbd_dev->lock_state = RBD_LOCK_STATE_UNLOCKED; rbd_set_owner_cid(rbd_dev, &rbd_empty_cid); queue_work(rbd_dev->task_wq, &rbd_dev->released_lock_work); - return 0; } static int __rbd_notify_op_lock(struct rbd_device *rbd_dev, @@ -3490,16 +3487,15 @@ static bool rbd_release_lock(struct rbd_device *rbd_dev) if (rbd_dev->lock_state != RBD_LOCK_STATE_RELEASING) return false; - if (!rbd_unlock(rbd_dev)) - /* - * Give others a chance to grab the lock - we would re-acquire - * almost immediately if we got new IO during ceph_osdc_sync() - * otherwise. We need to ack our own notifications, so this - * lock_dwork will be requeued from rbd_wait_state_locked() - * after wake_requests() in rbd_handle_released_lock(). - */ - cancel_delayed_work(&rbd_dev->lock_dwork); - + rbd_unlock(rbd_dev); + /* + * Give others a chance to grab the lock - we would re-acquire + * almost immediately if we got new IO during ceph_osdc_sync() + * otherwise. We need to ack our own notifications, so this + * lock_dwork will be requeued from rbd_wait_state_locked() + * after wake_requests() in rbd_handle_released_lock(). + */ + cancel_delayed_work(&rbd_dev->lock_dwork); return true; } |