From: Lars Ellenberg Date: Wed, 23 Apr 2014 10:15:35 +0000 (+0200) Subject: drbd: consistently use list_add_tail for peer_request tracking X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b9ed7080d7d29112c898c64bad778b84eec0ed2d;p=linux-beck.git 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 Signed-off-by: Lars Ellenberg --- 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);