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Bluetooth: Process recv path in a workqueue instead of a tasklet

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Run recv process in workqueue helps a lot with our processing as the recv
path will also be in the process context, i.e., now all our tx and rx are
in process context.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Marcel Holtmann 2010-08-08 23:06:53 -04:00 committed by Gustavo F. Padovan
parent 416dc94baa
commit b78752cc71
2 changed files with 12 additions and 10 deletions
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3
include/net/bluetooth/hci_core.h
View file

@ -194,8 +194,9 @@ struct hci_dev {
struct delayed_work discov_off;
struct timer_list cmd_timer;
struct work_struct rx_work;
struct tasklet_struct cmd_task;
struct tasklet_struct rx_task;
struct tasklet_struct tx_task;
struct sk_buff_head rx_q;

19
net/bluetooth/hci_core.c
View file

@ -56,8 +56,8 @@
int enable_hs;
static void hci_rx_work(struct work_struct *work);
static void hci_cmd_task(unsigned long arg);
static void hci_rx_task(unsigned long arg);
static void hci_tx_task(unsigned long arg);
static DEFINE_RWLOCK(hci_task_lock);
@ -547,9 +547,9 @@ int hci_dev_open(__u16 dev)
}
} else {
/* Init failed, cleanup */
tasklet_kill(&hdev->rx_task);
tasklet_kill(&hdev->tx_task);
tasklet_kill(&hdev->cmd_task);
flush_work(&hdev->rx_work);
skb_queue_purge(&hdev->cmd_q);
skb_queue_purge(&hdev->rx_q);
@ -586,8 +586,8 @@ static int hci_dev_do_close(struct hci_dev *hdev)
}
/* Kill RX and TX tasks */
tasklet_kill(&hdev->rx_task);
tasklet_kill(&hdev->tx_task);
flush_work(&hdev->rx_work);
if (hdev->discov_timeout > 0) {
cancel_delayed_work(&hdev->discov_off);
@ -1456,8 +1456,9 @@ int hci_register_dev(struct hci_dev *hdev)
hdev->sniff_max_interval = 800;
hdev->sniff_min_interval = 80;
tasklet_init(&hdev->cmd_task, hci_cmd_task, (unsigned long) hdev);
tasklet_init(&hdev->rx_task, hci_rx_task, (unsigned long) hdev);
INIT_WORK(&hdev->rx_work, hci_rx_work);
tasklet_init(&hdev->cmd_task, hci_cmd_task,(unsigned long) hdev);
tasklet_init(&hdev->tx_task, hci_tx_task, (unsigned long) hdev);
skb_queue_head_init(&hdev->rx_q);
@ -1623,9 +1624,8 @@ int hci_recv_frame(struct sk_buff *skb)
/* Time stamp */
__net_timestamp(skb);
/* Queue frame for rx task */
skb_queue_tail(&hdev->rx_q, skb);
tasklet_schedule(&hdev->rx_task);
queue_work(hdev->workqueue, &hdev->rx_work);
return 0;
}
@ -2486,9 +2486,9 @@ static inline void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb)
kfree_skb(skb);
}
static void hci_rx_task(unsigned long arg)
static void hci_rx_work(struct work_struct *work)
{
struct hci_dev *hdev = (struct hci_dev *) arg;
struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work);
struct sk_buff *skb;
BT_DBG("%s", hdev->name);
@ -2519,6 +2519,7 @@ static void hci_rx_task(unsigned long arg)
/* Process frame */
switch (bt_cb(skb)->pkt_type) {
case HCI_EVENT_PKT:
BT_DBG("%s Event packet", hdev->name);
hci_event_packet(hdev, skb);
break;