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Diffstat (limited to 'net/llc/llc_proc.c')
-rw-r--r--net/llc/llc_proc.c44
1 files changed, 30 insertions, 14 deletions
diff --git a/net/llc/llc_proc.c b/net/llc/llc_proc.c
index 6b3d033b3236..09dec6307206 100644
--- a/net/llc/llc_proc.c
+++ b/net/llc/llc_proc.c
@@ -34,17 +34,22 @@ static struct sock *llc_get_sk_idx(loff_t pos)
{
struct list_head *sap_entry;
struct llc_sap *sap;
- struct hlist_nulls_node *node;
struct sock *sk = NULL;
+ int i;
list_for_each(sap_entry, &llc_sap_list) {
sap = list_entry(sap_entry, struct llc_sap, node);
spin_lock_bh(&sap->sk_lock);
- sk_nulls_for_each(sk, node, &sap->sk_list) {
- if (!pos)
- goto found;
- --pos;
+ for (i = 0; i < LLC_SK_LADDR_HASH_ENTRIES; i++) {
+ struct hlist_nulls_head *head = &sap->sk_laddr_hash[i];
+ struct hlist_nulls_node *node;
+
+ sk_nulls_for_each(sk, node, head) {
+ if (!pos)
+ goto found; /* keep the lock */
+ --pos;
+ }
}
spin_unlock_bh(&sap->sk_lock);
}
@@ -61,6 +66,19 @@ static void *llc_seq_start(struct seq_file *seq, loff_t *pos)
return l ? llc_get_sk_idx(--l) : SEQ_START_TOKEN;
}
+static struct sock *laddr_hash_next(struct llc_sap *sap, int bucket)
+{
+ struct hlist_nulls_node *node;
+ struct sock *sk = NULL;
+
+ while (++bucket < LLC_SK_LADDR_HASH_ENTRIES)
+ sk_nulls_for_each(sk, node, &sap->sk_laddr_hash[bucket])
+ goto out;
+
+out:
+ return sk;
+}
+
static void *llc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct sock* sk, *next;
@@ -80,17 +98,15 @@ static void *llc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
}
llc = llc_sk(sk);
sap = llc->sap;
+ sk = laddr_hash_next(sap, llc_sk_laddr_hashfn(sap, &llc->laddr));
+ if (sk)
+ goto out;
spin_unlock_bh(&sap->sk_lock);
- sk = NULL;
- for (;;) {
- if (sap->node.next == &llc_sap_list)
- break;
- sap = list_entry(sap->node.next, struct llc_sap, node);
+ list_for_each_entry_continue(sap, &llc_sap_list, node) {
spin_lock_bh(&sap->sk_lock);
- if (!hlist_nulls_empty(&sap->sk_list)) {
- sk = sk_nulls_head(&sap->sk_list);
- break;
- }
+ sk = laddr_hash_next(sap, -1);
+ if (sk)
+ break; /* keep the lock */
spin_unlock_bh(&sap->sk_lock);
}
out: