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Bluetooth: convert tx_task to workqueue

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This should simplify Bluetooth core processing a lot.

Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Gustavo F. Padovan 2011-12-15 00:50:02 -02:00
parent c347b765fe
commit 3eff45eaf8
4 changed files with 13 additions and 19 deletions
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2
include/net/bluetooth/hci_core.h
View File

@ -197,7 +197,7 @@ struct hci_dev {
struct work_struct rx_work; struct work_struct rx_work;
struct work_struct cmd_work; struct work_struct cmd_work;
struct tasklet_struct tx_task; struct work_struct tx_work;
struct sk_buff_head rx_q; struct sk_buff_head rx_q;
struct sk_buff_head raw_q; struct sk_buff_head raw_q;

20
net/bluetooth/hci_core.c
View File

@ -58,7 +58,7 @@ int enable_hs;
static void hci_rx_work(struct work_struct *work); static void hci_rx_work(struct work_struct *work);
static void hci_cmd_work(struct work_struct *work); static void hci_cmd_work(struct work_struct *work);
static void hci_tx_task(unsigned long arg); static void hci_tx_work(struct work_struct *work);
static DEFINE_MUTEX(hci_task_lock); static DEFINE_MUTEX(hci_task_lock);
@ -547,7 +547,7 @@ int hci_dev_open(__u16 dev)
} }
} else { } else {
/* Init failed, cleanup */ /* Init failed, cleanup */
tasklet_kill(&hdev->tx_task); flush_work(&hdev->tx_work);
flush_work(&hdev->cmd_work); flush_work(&hdev->cmd_work);
flush_work(&hdev->rx_work); flush_work(&hdev->rx_work);
@ -585,8 +585,8 @@ static int hci_dev_do_close(struct hci_dev *hdev)
return 0; return 0;
} }
/* Kill RX and TX tasks */ /* Flush RX and TX works */
tasklet_kill(&hdev->tx_task); flush_work(&hdev->tx_work);
flush_work(&hdev->rx_work); flush_work(&hdev->rx_work);
if (hdev->discov_timeout > 0) { if (hdev->discov_timeout > 0) {
@ -672,7 +672,6 @@ int hci_dev_reset(__u16 dev)
return -ENODEV; return -ENODEV;
hci_req_lock(hdev); hci_req_lock(hdev);
tasklet_disable(&hdev->tx_task);
if (!test_bit(HCI_UP, &hdev->flags)) if (!test_bit(HCI_UP, &hdev->flags))
goto done; goto done;
@ -697,7 +696,6 @@ int hci_dev_reset(__u16 dev)
msecs_to_jiffies(HCI_INIT_TIMEOUT)); msecs_to_jiffies(HCI_INIT_TIMEOUT));
done: done:
tasklet_enable(&hdev->tx_task);
hci_req_unlock(hdev); hci_req_unlock(hdev);
hci_dev_put(hdev); hci_dev_put(hdev);
return ret; return ret;
@ -1459,8 +1457,8 @@ int hci_register_dev(struct hci_dev *hdev)
INIT_WORK(&hdev->rx_work, hci_rx_work); INIT_WORK(&hdev->rx_work, hci_rx_work);
INIT_WORK(&hdev->cmd_work, hci_cmd_work); INIT_WORK(&hdev->cmd_work, hci_cmd_work);
INIT_WORK(&hdev->tx_work, hci_tx_work);
tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
skb_queue_head_init(&hdev->rx_q); skb_queue_head_init(&hdev->rx_q);
skb_queue_head_init(&hdev->cmd_q); skb_queue_head_init(&hdev->cmd_q);
@ -2012,7 +2010,7 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
hci_queue_acl(conn, &chan->data_q, skb, flags); hci_queue_acl(conn, &chan->data_q, skb, flags);
tasklet_schedule(&hdev->tx_task); queue_work(hdev->workqueue, &hdev->tx_work);
} }
EXPORT_SYMBOL(hci_send_acl); EXPORT_SYMBOL(hci_send_acl);
@ -2035,7 +2033,7 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
skb_queue_tail(&conn->data_q, skb); skb_queue_tail(&conn->data_q, skb);
tasklet_schedule(&hdev->tx_task); queue_work(hdev->workqueue, &hdev->tx_work);
} }
EXPORT_SYMBOL(hci_send_sco); EXPORT_SYMBOL(hci_send_sco);
@ -2399,9 +2397,9 @@ static inline void hci_sched_le(struct hci_dev *hdev)
hci_prio_recalculate(hdev, LE_LINK); hci_prio_recalculate(hdev, LE_LINK);
} }
static void hci_tx_task(unsigned long arg) static void hci_tx_work(struct work_struct *work)
{ {
struct hci_dev *hdev = (struct hci_dev *) arg; struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work);
struct sk_buff *skb; struct sk_buff *skb;
mutex_lock(&hci_task_lock); mutex_lock(&hci_task_lock);

6
net/bluetooth/hci_event.c
View File

@ -2239,8 +2239,6 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
return; return;
} }
tasklet_disable(&hdev->tx_task);
for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) { for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
struct hci_conn *conn; struct hci_conn *conn;
__u16 handle, count; __u16 handle, count;
@ -2274,9 +2272,7 @@ static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *s
} }
} }
tasklet_schedule(&hdev->tx_task); queue_work(hdev->workqueue, &hdev->tx_work);
tasklet_enable(&hdev->tx_task);
} }
static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb) static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)

4
net/bluetooth/hci_sock.c
View File

@ -535,7 +535,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) { if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) {
skb_queue_tail(&hdev->raw_q, skb); skb_queue_tail(&hdev->raw_q, skb);
tasklet_schedule(&hdev->tx_task); queue_work(hdev->workqueue, &hdev->tx_work);
} else { } else {
skb_queue_tail(&hdev->cmd_q, skb); skb_queue_tail(&hdev->cmd_q, skb);
queue_work(hdev->workqueue, &hdev->cmd_work); queue_work(hdev->workqueue, &hdev->cmd_work);
@ -547,7 +547,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
} }
skb_queue_tail(&hdev->raw_q, skb); skb_queue_tail(&hdev->raw_q, skb);
tasklet_schedule(&hdev->tx_task); queue_work(hdev->workqueue, &hdev->tx_work);
} }
err = len; err = len;