summaryrefslogtreecommitdiffstats
path: root/drivers/block
diff options
context:
space:
mode:
authorLars Ellenberg <lars.ellenberg@linbit.com>2014-04-23 12:15:35 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2014-07-10 18:35:08 +0200
commitb9ed7080d7d29112c898c64bad778b84eec0ed2d (patch)
treefe2f27854645ec6c51ca71a149590e567f3bbbd4 /drivers/block
parent41d9f7cd5ba8a488fbc96350141c70c5c01bf8e6 (diff)
downloadblackbird-op-linux-b9ed7080d7d29112c898c64bad778b84eec0ed2d.tar.gz
blackbird-op-linux-b9ed7080d7d29112c898c64bad778b84eec0ed2d.zip
drbd: consistently use list_add_tail for peer_request tracking
Keep the epoch entry lists (active_ee, read_ee, sync_ee, ...) consistently "oldest first". That way finding the oldest not yet successfully processed request is simply list_first_entry_or_null. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/drbd/drbd_receiver.c4
-rw-r--r--drivers/block/drbd/drbd_worker.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 3a3c4893ea26..db5c58042734 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1777,7 +1777,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
peer_req->w.cb = e_end_resync_block;
spin_lock_irq(&device->resource->req_lock);
- list_add(&peer_req->w.list, &device->sync_ee);
+ list_add_tail(&peer_req->w.list, &device->sync_ee);
spin_unlock_irq(&device->resource->req_lock);
atomic_add(pi->size >> 9, &device->rs_sect_ev);
@@ -2341,7 +2341,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
* active_ee to become empty in drbd_submit_peer_request();
* better not add ourselves here. */
if ((peer_req->flags & EE_IS_TRIM_USE_ZEROOUT) == 0)
- list_add(&peer_req->w.list, &device->active_ee);
+ list_add_tail(&peer_req->w.list, &device->active_ee);
spin_unlock_irq(&device->resource->req_lock);
if (device->state.conn == C_SYNC_TARGET)
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 49b88731b349..ad57129289b5 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -410,7 +410,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
peer_req->w.cb = w_e_send_csum;
spin_lock_irq(&device->resource->req_lock);
- list_add(&peer_req->w.list, &device->read_ee);
+ list_add_tail(&peer_req->w.list, &device->read_ee);
spin_unlock_irq(&device->resource->req_lock);
atomic_add(size >> 9, &device->rs_sect_ev);
OpenPOWER on IntegriCloud