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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
  macvlan: fix panic if lowerdev in a bond
  tg3: Add braces around 5906 workaround.
  tg3: Fix NETIF_F_LOOPBACK error
  macvlan: remove one synchronize_rcu() call
  networking: NET_CLS_ROUTE4 depends on INET
  irda: Fix error propagation in ircomm_lmp_connect_response()
  irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
  irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
  be2net: Kill set but unused variable 'req' in lancer_fw_download()
  irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
  atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
  rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
  pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
  isdn: capi: Use pr_debug() instead of ifdefs.
  tg3: Update version to 3.119
  tg3: Apply rx_discards fix to 5719/5720
  ...

Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem.
This commit is contained in:
Linus Torvalds
2011-05-20 13:43:21 -07:00
parent 8e7bfcbab3 d93515611b
commit 06f4e926d2
1198 changed files with 127024 additions and 79786 deletions
Download Patch File Download Diff File Expand all files Collapse all files

110
net/ipv4/fib_trie.c
View File

@@ -126,7 +126,7 @@ struct tnode {
struct work_struct work;
struct tnode *tnode_free;
};
struct rt_trie_node *child[0];
struct rt_trie_node __rcu *child[0];
};
#ifdef CONFIG_IP_FIB_TRIE_STATS
@@ -151,7 +151,7 @@ struct trie_stat {
};
struct trie {
struct rt_trie_node *trie;
struct rt_trie_node __rcu *trie;
#ifdef CONFIG_IP_FIB_TRIE_STATS
struct trie_use_stats stats;
#endif
@@ -177,16 +177,29 @@ static const int sync_pages = 128;
static struct kmem_cache *fn_alias_kmem __read_mostly;
static struct kmem_cache *trie_leaf_kmem __read_mostly;
static inline struct tnode *node_parent(struct rt_trie_node *node)
/*
* caller must hold RTNL
*/
static inline struct tnode *node_parent(const struct rt_trie_node *node)
{
return (struct tnode *)(node->parent & ~NODE_TYPE_MASK);
unsigned long parent;
parent = rcu_dereference_index_check(node->parent, lockdep_rtnl_is_held());
return (struct tnode *)(parent & ~NODE_TYPE_MASK);
}
static inline struct tnode *node_parent_rcu(struct rt_trie_node *node)
/*
* caller must hold RCU read lock or RTNL
*/
static inline struct tnode *node_parent_rcu(const struct rt_trie_node *node)
{
struct tnode *ret = node_parent(node);
unsigned long parent;
return rcu_dereference_rtnl(ret);
parent = rcu_dereference_index_check(node->parent, rcu_read_lock_held() ||
lockdep_rtnl_is_held());
return (struct tnode *)(parent & ~NODE_TYPE_MASK);
}
/* Same as rcu_assign_pointer
@@ -198,18 +211,24 @@ static inline void node_set_parent(struct rt_trie_node *node, struct tnode *ptr)
node->parent = (unsigned long)ptr | NODE_TYPE(node);
}
static inline struct rt_trie_node *tnode_get_child(struct tnode *tn, unsigned int i)
/*
* caller must hold RTNL
*/
static inline struct rt_trie_node *tnode_get_child(const struct tnode *tn, unsigned int i)
{
BUG_ON(i >= 1U << tn->bits);
return tn->child[i];
return rtnl_dereference(tn->child[i]);
}
static inline struct rt_trie_node *tnode_get_child_rcu(struct tnode *tn, unsigned int i)
/*
* caller must hold RCU read lock or RTNL
*/
static inline struct rt_trie_node *tnode_get_child_rcu(const struct tnode *tn, unsigned int i)
{
struct rt_trie_node *ret = tnode_get_child(tn, i);
BUG_ON(i >= 1U << tn->bits);
return rcu_dereference_rtnl(ret);
return rcu_dereference_rtnl(tn->child[i]);
}
static inline int tnode_child_length(const struct tnode *tn)
@@ -482,7 +501,7 @@ static inline void put_child(struct trie *t, struct tnode *tn, int i,
static void tnode_put_child_reorg(struct tnode *tn, int i, struct rt_trie_node *n,
int wasfull)
{
struct rt_trie_node *chi = tn->child[i];
struct rt_trie_node *chi = rtnl_dereference(tn->child[i]);
int isfull;
BUG_ON(i >= 1<<tn->bits);
@@ -660,7 +679,7 @@ one_child:
for (i = 0; i < tnode_child_length(tn); i++) {
struct rt_trie_node *n;
n = tn->child[i];
n = rtnl_dereference(tn->child[i]);
if (!n)
continue;
@@ -674,6 +693,20 @@ one_child:
return (struct rt_trie_node *) tn;
}
static void tnode_clean_free(struct tnode *tn)
{
int i;
struct tnode *tofree;
for (i = 0; i < tnode_child_length(tn); i++) {
tofree = (struct tnode *)rtnl_dereference(tn->child[i]);
if (tofree)
tnode_free(tofree);
}
tnode_free(tn);
}
static struct tnode *inflate(struct trie *t, struct tnode *tn)
{
struct tnode *oldtnode = tn;
@@ -750,8 +783,8 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
inode = (struct tnode *) node;
if (inode->bits == 1) {
put_child(t, tn, 2*i, inode->child[0]);
put_child(t, tn, 2*i+1, inode->child[1]);
put_child(t, tn, 2*i, rtnl_dereference(inode->child[0]));
put_child(t, tn, 2*i+1, rtnl_dereference(inode->child[1]));
tnode_free_safe(inode);
continue;
@@ -792,8 +825,8 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
size = tnode_child_length(left);
for (j = 0; j < size; j++) {
put_child(t, left, j, inode->child[j]);
put_child(t, right, j, inode->child[j + size]);
put_child(t, left, j, rtnl_dereference(inode->child[j]));
put_child(t, right, j, rtnl_dereference(inode->child[j + size]));
}
put_child(t, tn, 2*i, resize(t, left));
put_child(t, tn, 2*i+1, resize(t, right));
@@ -803,18 +836,8 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
tnode_free_safe(oldtnode);
return tn;
nomem:
{
int size = tnode_child_length(tn);
int j;
for (j = 0; j < size; j++)
if (tn->child[j])
tnode_free((struct tnode *)tn->child[j]);
tnode_free(tn);
return ERR_PTR(-ENOMEM);
}
tnode_clean_free(tn);
return ERR_PTR(-ENOMEM);
}
static struct tnode *halve(struct trie *t, struct tnode *tn)
@@ -885,18 +908,8 @@ static struct tnode *halve(struct trie *t, struct tnode *tn)
tnode_free_safe(oldtnode);
return tn;
nomem:
{
int size = tnode_child_length(tn);
int j;
for (j = 0; j < size; j++)
if (tn->child[j])
tnode_free((struct tnode *)tn->child[j]);
tnode_free(tn);
return ERR_PTR(-ENOMEM);
}
tnode_clean_free(tn);
return ERR_PTR(-ENOMEM);
}
/* readside must use rcu_read_lock currently dump routines
@@ -1028,7 +1041,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
t_key cindex;
pos = 0;
n = t->trie;
n = rtnl_dereference(t->trie);
/* If we point to NULL, stop. Either the tree is empty and we should
* just put a new leaf in if, or we have reached an empty child slot,
@@ -1314,6 +1327,9 @@ int fib_table_insert(struct fib_table *tb, struct fib_config *cfg)
}
}
if (!plen)
tb->tb_num_default++;
list_add_tail_rcu(&new_fa->fa_list,
(fa ? &fa->fa_list : fa_head));
@@ -1679,6 +1695,9 @@ int fib_table_delete(struct fib_table *tb, struct fib_config *cfg)
list_del_rcu(&fa->fa_list);
if (!plen)
tb->tb_num_default--;
if (list_empty(fa_head)) {
hlist_del_rcu(&li->hlist);
free_leaf_info(li);
@@ -1751,7 +1770,7 @@ static struct leaf *leaf_walk_rcu(struct tnode *p, struct rt_trie_node *c)
continue;
if (IS_LEAF(c)) {
prefetch(p->child[idx]);
prefetch(rcu_dereference_rtnl(p->child[idx]));
return (struct leaf *) c;
}
@@ -1969,6 +1988,7 @@ struct fib_table *fib_trie_table(u32 id)
tb->tb_id = id;
tb->tb_default = -1;
tb->tb_num_default = 0;
t = (struct trie *) tb->tb_data;
memset(t, 0, sizeof(*t));
@@ -2264,7 +2284,7 @@ static void *fib_trie_seq_next(struct seq_file *seq, void *v, loff_t *pos)
/* walk rest of this hash chain */
h = tb->tb_id & (FIB_TABLE_HASHSZ - 1);
while ( (tb_node = rcu_dereference(tb->tb_hlist.next)) ) {
while ((tb_node = rcu_dereference(hlist_next_rcu(&tb->tb_hlist)))) {
tb = hlist_entry(tb_node, struct fib_table, tb_hlist);
n = fib_trie_get_first(iter, (struct trie *) tb->tb_data);
if (n)