Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d5bd0146f0d61f7dc9904a7cc6d5cb9832034de4
Commit: d5bd0146f0d61f7dc9904a7cc6d5cb9832034de4
Parent: d8b2a4d21e0b37b9669b202867bfef19f68f786a
Author: Neil Turton <[EMAIL PROTECTED]>
AuthorDate: Tue Feb 12 23:13:48 2008 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Tue Feb 12 23:13:48 2008 -0800
[NET]: Improve cache line coherency of ingress qdisc
Move the ingress qdisc members of struct net_device from the transmit
cache line to the receive cache line to avoid cache line ping-pong.
These members are only used on the receive path.
Signed-off-by: Neil Turton <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
include/linux/netdevice.h | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 047d432..4ffa49d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -604,6 +604,10 @@ struct net_device
unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add
*/
+ /* ingress path synchronizer */
+ spinlock_t ingress_lock;
+ struct Qdisc *qdisc_ingress;
+
/*
* Cache line mostly used on queue transmit path (qdisc)
*/
@@ -617,10 +621,6 @@ struct net_device
/* Partially transmitted GSO packet. */
struct sk_buff *gso_skb;
- /* ingress path synchronizer */
- spinlock_t ingress_lock;
- struct Qdisc *qdisc_ingress;
-
/*
* One part is mostly used on xmit path (device)
*/
-
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