When assigning tx quotas for multiple connections, bump fractional
amounts to the next higher integer. This can reduce the number of
iterations through the tx scheduler. For example, if 5 avail acl
buffers are to be used by 3 transmitting connections, the current
scheduler will produce quotas of 1, 1, 1, 1, 1. This
optimization will instead produce quotas of 2, 2, 1 (ie., 2 less
iterations of the tx scheduler).
Signed-off-by: Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
---
net/bluetooth/hci_core.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 47a31fa..0defa83 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1826,7 +1826,7 @@ static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int
}
if (conn) {
- int cnt, q;
+ int cnt;
switch (conn->type) {
case ACL_LINK:
@@ -1844,8 +1844,7 @@ static inline struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, int
BT_ERR("Unknown link type");
}
- q = cnt / num;
- *quote = q ? q : 1;
+ *quote = (cnt + (num - 1)) / num;
} else
*quote = 0;
--
1.7.4.1
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