[dpdk-dev] hash: fix wrong size memory calculation
Commit Message
When calculating the size for the table which allocates
the keys, size was calculated wrongly from multiplying
two 32-bit variables, resulting on a 32-bit number,
before casting to 64-bit, so maximum size was 4G.
Fixes: 48a399119619 ("hash: replace with cuckoo hash implementation")
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
lib/librte_hash/rte_cuckoo_hash.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Comments
2015-08-31 14:30, Pablo de Lara:
> When calculating the size for the table which allocates
> the keys, size was calculated wrongly from multiplying
> two 32-bit variables, resulting on a 32-bit number,
> before casting to 64-bit, so maximum size was 4G.
>
> Fixes: 48a399119619 ("hash: replace with cuckoo hash implementation")
>
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Applied, thanks
@@ -238,7 +238,7 @@ rte_hash_create(const struct rte_hash_parameters *params)
const uint32_t key_entry_size = sizeof(struct rte_hash_key) + params->key_len;
/* Store all keys and leave the first entry as a dummy entry for lookup_bulk */
- const uint64_t key_tbl_size = key_entry_size * (params->entries + 1);
+ const uint64_t key_tbl_size = (uint64_t) key_entry_size * (params->entries + 1);
k = rte_zmalloc_socket(NULL, key_tbl_size,
RTE_CACHE_LINE_SIZE, params->socket_id);