From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Luiz Augusto von Dentz To: linux-bluetooth@vger.kernel.org Subject: [PATCH 5/7] Bluetooth: handle priority change within quote Date: Tue, 1 Nov 2011 10:59:00 +0200 Message-Id: <1320137942-25780-5-git-send-email-luiz.dentz@gmail.com> In-Reply-To: <1320137942-25780-1-git-send-email-luiz.dentz@gmail.com> References: <1320137942-25780-1-git-send-email-luiz.dentz@gmail.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: From: Luiz Augusto von Dentz The quote is calculated based on the first buffer in the queue so if the priority changes to something lower than the priority of the first skb the quote needs to be recalculated. Signed-off-by: Luiz Augusto von Dentz --- net/bluetooth/hci_core.c | 18 ++++++++++++++++-- 1 files changed, 16 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 6dbc36a1..4ecf652 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -2211,10 +2211,17 @@ static inline void hci_sched_acl(struct hci_dev *hdev) while (hdev->acl_cnt && (chan = hci_chan_sent(hdev, ACL_LINK, "e))) { - while (quote-- && (skb = skb_dequeue(&chan->data_q))) { + u32 priority = (skb_peek(&chan->data_q))->priority; + while (quote-- && (skb = skb_peek(&chan->data_q))) { BT_DBG("chan %p skb %p len %d priority %u", chan, skb, skb->len, skb->priority); + /* Stop if priority has changed */ + if (skb->priority < priority) + break; + + skb = skb_dequeue(&chan->data_q); + hci_conn_enter_active_mode(chan->conn, bt_cb(skb)->force_active); @@ -2296,10 +2303,17 @@ static inline void hci_sched_le(struct hci_dev *hdev) cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt; while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, "e))) { - while (quote-- && (skb = skb_dequeue(&chan->data_q))) { + u32 priority = (skb_peek(&chan->data_q))->priority; + while (quote-- && (skb = skb_peek(&chan->data_q))) { BT_DBG("chan %p skb %p len %d priority %u", chan, skb, skb->len, skb->priority); + /* Stop if priority has changed */ + if (skb->priority < priority) + break; + + skb = skb_dequeue(&chan->data_q); + hci_send_frame(skb); hdev->le_last_tx = jiffies; -- 1.7.6.4