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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:04:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-20 21:04:44 -0700
commitf8965467f366fd18f01feafb5db10512d7b4422c (patch)
tree3706a9cd779859271ca61b85c63a1bc3f82d626e /net/core/dst.c
parenta26272e5200765691e67d6780e52b32498fdb659 (diff)
parent2ec8c6bb5d8f3a62a79f463525054bae1e3d4487 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits) qlcnic: adding co maintainer ixgbe: add support for active DA cables ixgbe: dcb, do not tag tc_prio_control frames ixgbe: fix ixgbe_tx_is_paused logic ixgbe: always enable vlan strip/insert when DCB is enabled ixgbe: remove some redundant code in setting FCoE FIP filter ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp ixgbe: fix header len when unsplit packet overflows to data buffer ipv6: Never schedule DAD timer on dead address ipv6: Use POSTDAD state ipv6: Use state_lock to protect ifa state ipv6: Replace inet6_ifaddr->dead with state cxgb4: notify upper drivers if the device is already up when they load cxgb4: keep interrupts available when the ports are brought down cxgb4: fix initial addition of MAC address cnic: Return SPQ credit to bnx2x after ring setup and shutdown. cnic: Convert cnic_local_flags to atomic ops. can: Fix SJA1000 command register writes on SMP systems bridge: fix build for CONFIG_SYSFS disabled ARCNET: Limit com20020 PCI ID matches for SOHARD cards ... Fix up various conflicts with pcmcia tree drivers/net/ {pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and wireless/orinoco/spectrum_cs.c} and feature removal (Documentation/feature-removal-schedule.txt). Also fix a non-content conflict due to pm_qos_requirement getting renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
Diffstat (limited to 'net/core/dst.c')
-rw-r--r--net/core/dst.c45
1 files changed, 22 insertions, 23 deletions
diff --git a/net/core/dst.c b/net/core/dst.c
index f307bc18f6a..9920722cc82 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -44,7 +44,7 @@ static atomic_t dst_total = ATOMIC_INIT(0);
*/
static struct {
spinlock_t lock;
- struct dst_entry *list;
+ struct dst_entry *list;
unsigned long timer_inc;
unsigned long timer_expires;
} dst_garbage = {
@@ -52,7 +52,7 @@ static struct {
.timer_inc = DST_GC_MAX,
};
static void dst_gc_task(struct work_struct *work);
-static void ___dst_free(struct dst_entry * dst);
+static void ___dst_free(struct dst_entry *dst);
static DECLARE_DELAYED_WORK(dst_gc_work, dst_gc_task);
@@ -136,8 +136,8 @@ loop:
}
expires = dst_garbage.timer_expires;
/*
- * if the next desired timer is more than 4 seconds in the future
- * then round the timer to whole seconds
+ * if the next desired timer is more than 4 seconds in the
+ * future then round the timer to whole seconds
*/
if (expires > 4*HZ)
expires = round_jiffies_relative(expires);
@@ -152,7 +152,8 @@ loop:
" expires: %lu elapsed: %lu us\n",
atomic_read(&dst_total), delayed, work_performed,
expires,
- elapsed.tv_sec * USEC_PER_SEC + elapsed.tv_nsec / NSEC_PER_USEC);
+ elapsed.tv_sec * USEC_PER_SEC +
+ elapsed.tv_nsec / NSEC_PER_USEC);
#endif
}
@@ -163,9 +164,9 @@ int dst_discard(struct sk_buff *skb)
}
EXPORT_SYMBOL(dst_discard);
-void * dst_alloc(struct dst_ops * ops)
+void *dst_alloc(struct dst_ops *ops)
{
- struct dst_entry * dst;
+ struct dst_entry *dst;
if (ops->gc && atomic_read(&ops->entries) > ops->gc_thresh) {
if (ops->gc(ops))
@@ -185,19 +186,20 @@ void * dst_alloc(struct dst_ops * ops)
atomic_inc(&ops->entries);
return dst;
}
+EXPORT_SYMBOL(dst_alloc);
-static void ___dst_free(struct dst_entry * dst)
+static void ___dst_free(struct dst_entry *dst)
{
/* The first case (dev==NULL) is required, when
protocol module is unloaded.
*/
- if (dst->dev == NULL || !(dst->dev->flags&IFF_UP)) {
+ if (dst->dev == NULL || !(dst->dev->flags&IFF_UP))
dst->input = dst->output = dst_discard;
- }
dst->obsolete = 2;
}
+EXPORT_SYMBOL(__dst_free);
-void __dst_free(struct dst_entry * dst)
+void __dst_free(struct dst_entry *dst)
{
spin_lock_bh(&dst_garbage.lock);
___dst_free(dst);
@@ -262,15 +264,16 @@ again:
}
return NULL;
}
+EXPORT_SYMBOL(dst_destroy);
void dst_release(struct dst_entry *dst)
{
if (dst) {
- int newrefcnt;
+ int newrefcnt;
smp_mb__before_atomic_dec();
- newrefcnt = atomic_dec_return(&dst->__refcnt);
- WARN_ON(newrefcnt < 0);
+ newrefcnt = atomic_dec_return(&dst->__refcnt);
+ WARN_ON(newrefcnt < 0);
}
}
EXPORT_SYMBOL(dst_release);
@@ -283,8 +286,8 @@ EXPORT_SYMBOL(dst_release);
*
* Commented and originally written by Alexey.
*/
-static inline void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
- int unregister)
+static void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
+ int unregister)
{
if (dst->ops->ifdown)
dst->ops->ifdown(dst, dev, unregister);
@@ -306,7 +309,8 @@ static inline void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
}
}
-static int dst_dev_event(struct notifier_block *this, unsigned long event, void *ptr)
+static int dst_dev_event(struct notifier_block *this, unsigned long event,
+ void *ptr)
{
struct net_device *dev = ptr;
struct dst_entry *dst, *last = NULL;
@@ -329,9 +333,8 @@ static int dst_dev_event(struct notifier_block *this, unsigned long event, void
last->next = dst;
else
dst_busy_list = dst;
- for (; dst; dst = dst->next) {
+ for (; dst; dst = dst->next)
dst_ifdown(dst, dev, event != NETDEV_DOWN);
- }
mutex_unlock(&dst_gc_mutex);
break;
}
@@ -346,7 +349,3 @@ void __init dst_init(void)
{
register_netdevice_notifier(&dst_dev_notifier);
}
-
-EXPORT_SYMBOL(__dst_free);
-EXPORT_SYMBOL(dst_alloc);
-EXPORT_SYMBOL(dst_destroy);