* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/system.h>
struct rt_hash_bucket {
struct rtable *chain;
};
-#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)
+#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK) || \
+ defined(CONFIG_PROVE_LOCKING)
/*
* Instead of using one spinlock for each rt_hash_bucket, we use a table of spinlocks
* The size of this table is a power of two and depends on the number of CPUS.
+ * (on lockdep we have a quite big spinlock_t, so keep the size down there)
*/
-#if NR_CPUS >= 32
-#define RT_HASH_LOCK_SZ 4096
-#elif NR_CPUS >= 16
-#define RT_HASH_LOCK_SZ 2048
-#elif NR_CPUS >= 8
-#define RT_HASH_LOCK_SZ 1024
-#elif NR_CPUS >= 4
-#define RT_HASH_LOCK_SZ 512
+#ifdef CONFIG_LOCKDEP
+# define RT_HASH_LOCK_SZ 256
#else
-#define RT_HASH_LOCK_SZ 256
+# if NR_CPUS >= 32
+# define RT_HASH_LOCK_SZ 4096
+# elif NR_CPUS >= 16
+# define RT_HASH_LOCK_SZ 2048
+# elif NR_CPUS >= 8
+# define RT_HASH_LOCK_SZ 1024
+# elif NR_CPUS >= 4
+# define RT_HASH_LOCK_SZ 512
+# else
+# define RT_HASH_LOCK_SZ 256
+# endif
#endif
static spinlock_t *rt_hash_locks;
static DEFINE_PER_CPU(struct rt_cache_stat, rt_cache_stat);
#define RT_CACHE_STAT_INC(field) \
- (per_cpu(rt_cache_stat, raw_smp_processor_id()).field++)
+ (__raw_get_cpu_var(rt_cache_stat).field++)
static int rt_intern_hash(unsigned hash, struct rtable *rth,
struct rtable **res);
/* Reserve room for dummy headers, this skb can pass
through good chunk of routing engine.
*/
- skb->mac.raw = skb->data;
+ skb->mac.raw = skb->nh.raw = skb->data;
+
+ /* Bugfix: need to give ip_route_input enough of an IP header to not gag. */
+ skb->nh.iph->protocol = IPPROTO_ICMP;
skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
if (rta[RTA_SRC - 1])
memcpy(dst, src, length);
/* Add the other cpus in, one int at a time */
- for_each_cpu(i) {
+ for_each_possible_cpu(i) {
unsigned int j;
src = ((u32 *) IP_RT_ACCT_CPU(i)) + offset;