summaryrefslogtreecommitdiff
path: root/net/bluetooth
diff options
context:
space:
mode:
authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2011-08-17 17:23:00 +0400
committerGustavo F. Padovan <padovan@profusion.mobi>2011-09-21 19:58:10 +0400
commit52087a792c1513b85de674a4fc67fb92855474c3 (patch)
tree4b7bf7510a44378a5cecfcb66d22364624c2dd56 /net/bluetooth
parentda3ba88a9996cd64c6768bed5727e02da81e2c8d (diff)
downloadlinux-52087a792c1513b85de674a4fc67fb92855474c3.tar.xz
Bluetooth: make use of connection number to optimize the scheduler
This checks if there is any existing connection according to its type before start iterating in the list and immediately stop iterating when reaching the number of connections. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_core.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 56943add45cc..1d2068322728 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2074,6 +2074,9 @@ static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int
min = c->sent;
conn = c;
}
+
+ if (hci_conn_num(hdev, type) == num)
+ break;
}
if (conn) {
@@ -2131,6 +2134,9 @@ static inline void hci_sched_acl(struct hci_dev *hdev)
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, ACL_LINK))
+ return;
+
if (!test_bit(HCI_RAW, &hdev->flags)) {
/* ACL tx timeout must be longer than maximum
* link supervision timeout (40.9 seconds) */
@@ -2162,6 +2168,9 @@ static inline void hci_sched_sco(struct hci_dev *hdev)
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, SCO_LINK))
+ return;
+
while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
@@ -2182,6 +2191,9 @@ static inline void hci_sched_esco(struct hci_dev *hdev)
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, ESCO_LINK))
+ return;
+
while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, &quote))) {
while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
BT_DBG("skb %p len %d", skb, skb->len);
@@ -2202,6 +2214,9 @@ static inline void hci_sched_le(struct hci_dev *hdev)
BT_DBG("%s", hdev->name);
+ if (!hci_conn_num(hdev, LE_LINK))
+ return;
+
if (!test_bit(HCI_RAW, &hdev->flags)) {
/* LE tx timeout must be longer than maximum
* link supervision timeout (40.9 seconds) */