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-rw-r--r--src/hashtables.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/hashtables.c b/src/hashtables.c
index 7b9fb7b..b6161bb 100644
--- a/src/hashtables.c
+++ b/src/hashtables.c
@@ -65,6 +65,12 @@ void index_hashtable_init(struct index_hashtable *table)
spin_lock_init(&table->lock);
}
+#if BITS_PER_LONG == 64
+#define get_random_u64() get_random_long()
+#else
+#define get_random_u64() (((u64)get_random_int() << 32) | get_random_int())
+#endif
+
__le32 index_hashtable_insert(struct index_hashtable *table, struct index_hashtable_entry *entry)
{
struct index_hashtable_entry *existing_entry;
@@ -78,7 +84,7 @@ __le32 index_hashtable_insert(struct index_hashtable *table, struct index_hashta
search_unused_slot:
/* First we try to find an unused slot, randomly, while unlocked. */
- rand = get_random_long();
+ rand = get_random_u64();
entry->index = (__force __le32)siphash24((u8 *)&rand, sizeof(rand), table->key);
hlist_for_each_entry_rcu(existing_entry, index_bucket(table, entry->index), index_hash) {
if (existing_entry->index == entry->index)