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drbd: also keep track of trim -> zero-out fallback peer_requests 

To be able to find and present such zero-out fallback peer_requests
in debugfs, we add those to "active_ee", once that list drained.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Lars Ellenberg 2014-04-23 12:25:23 +02:00 committed by Philipp Reisner
parent b9ed7080d7
commit 45d2933c92
1 changed files with 5 additions and 0 deletions
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5
drivers/block/drbd/drbd_receiver.c
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@ -1370,6 +1370,11 @@ int drbd_submit_peer_request(struct drbd_device *device,
/* wait for all pending IO completions, before we start
* zeroing things out. */
conn_wait_active_ee_empty(first_peer_device(device)->connection);
/* add it to the active list now,
* so we can find it to present it in debugfs */
spin_lock_irq(&device->resource->req_lock);
list_add_tail(&peer_req->w.list, &device->active_ee);
spin_unlock_irq(&device->resource->req_lock);
if (blkdev_issue_zeroout(device->ldev->backing_bdev,
sector, ds >> 9, GFP_NOIO))
peer_req->flags |= EE_WAS_ERROR;