lkml.org 
[lkml]   [2013]   [Jun]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 067/105] vxlan: Update vxlan fdb 'used' field after each usage
Date
3.8.13.4 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sridhar Samudrala <sri@us.ibm.com>

[ Upstream commit 014be2c8eac3381e202f684c1f35ae184a8b152b ]

Fix some instances where vxlan fdb 'used' field is not updated after the entry
is used.

v2: rename vxlan_find_mac() as __vxlan_find_mac() and create a new vxlan_find_mac()
that also updates ->used field.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/net/vxlan.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 6993bfa..9b2cc0c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -284,7 +284,7 @@ static inline struct hlist_head *vxlan_fdb_head(struct vxlan_dev *vxlan,
}

/* Look up Ethernet address in forwarding table */
-static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
+static struct vxlan_fdb *__vxlan_find_mac(struct vxlan_dev *vxlan,
const u8 *mac)

{
@@ -300,6 +300,18 @@ static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
return NULL;
}

+static struct vxlan_fdb *vxlan_find_mac(struct vxlan_dev *vxlan,
+ const u8 *mac)
+{
+ struct vxlan_fdb *f;
+
+ f = __vxlan_find_mac(vxlan, mac);
+ if (f)
+ f->used = jiffies;
+
+ return f;
+}
+
/* Add new entry to forwarding table -- assumes lock held */
static int vxlan_fdb_create(struct vxlan_dev *vxlan,
const u8 *mac, __be32 ip,
@@ -308,7 +320,7 @@ static int vxlan_fdb_create(struct vxlan_dev *vxlan,
struct vxlan_fdb *f;
int notify = 0;

- f = vxlan_find_mac(vxlan, mac);
+ f = __vxlan_find_mac(vxlan, mac);
if (f) {
if (flags & NLM_F_EXCL) {
netdev_dbg(vxlan->dev,
@@ -453,7 +465,6 @@ static void vxlan_snoop(struct net_device *dev,

f = vxlan_find_mac(vxlan, src_mac);
if (likely(f)) {
- f->used = jiffies;
if (likely(f->remote_ip == src_ip))
return;

--
1.8.1.2


\
 
 \ /
  Last update: 2013-06-28 21:41    [W:0.429 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site