Following patch keeps raw hash value (derived from key) in
sw_flow. So that new seed value can be used to find hash bucket.
This patch is required for next patch related to hash-table
re-hashing.
Signed-off-by: Pravin B Shelar <pshe...@nicira.com>
---
datapath/flow.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/datapath/flow.c b/datapath/flow.c
index c6f591a..a357077 100644
--- a/datapath/flow.c
+++ b/datapath/flow.c
@@ -290,6 +290,7 @@ struct sw_flow *ovs_flow_alloc(void)
static struct hlist_head *find_bucket(struct flow_table *table, u32 hash)
{
+ hash = jhash_1word(hash, hash_seed);
return flex_array_get(table->buckets,
(hash & (table->n_buckets - 1)));
}
@@ -813,7 +814,7 @@ out:
u32 ovs_flow_hash(const struct sw_flow_key *key, int key_len)
{
- return jhash2((u32 *)key, DIV_ROUND_UP(key_len, sizeof(u32)),
hash_seed);
+ return jhash2((u32 *)key, DIV_ROUND_UP(key_len, sizeof(u32)), 0);
}
struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *table,
--
1.7.1
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