On 23 Jul 2020, at 18:42, Jakub Kicinski wrote:
On Thu, 23 Jul 2020 14:58:31 +0200 Eelco Chaudron wrote:
+ if ((size & (size - 1)) != 0 ||
is_power_of_2() ?
Was not aware of this macro, will replace…
+ (size * sizeof(struct mask_cache_entry)) > PCPU_MIN_UNIT_SIZE)
+ return NULL;
+ new->cache_size = size;
+ if (new->cache_size > 0) {
+ cache = __alloc_percpu(sizeof(struct mask_cache_entry) *
+ new->cache_size,
array_size() ?
Will change to:
cache = __alloc_percpu(array_size(
sizeof(struct mask_cache_entry),
new->cache_size),
__alignof__(struct mask_cache_entry));
if (!cache) {
+ __alignof__(struct mask_cache_entry));
+
No need for the new line here
Will remove
+ if (!cache) {
+ kfree(new);
+ return NULL;
+ }
+ }
+ if (size == mc->cache_size || (size & (size - 1)) != 0)
why check "is power of 2" twice?
Will remove as it will always call tbl_mask_cache_alloc() which has the
check above.
@@ -454,7 +516,7 @@ void ovs_flow_tbl_destroy(struct flow_table
*table)
struct table_instance *ti = rcu_dereference_raw(table->ti);
struct table_instance *ufid_ti =
rcu_dereference_raw(table->ufid_ti);
- free_percpu(table->mask_cache);
+ call_rcu(&table->mask_cache->rcu, mask_cache_rcu_cb);
call_rcu(&table->mask_array->rcu, mask_array_rcu_cb);
table_instance_destroy(table, ti, ufid_ti, false);
}
This adds a new warning :(
net/openvswitch/flow_table.c:519:24: warning: incorrect type in
argument 1 (different address spaces)
net/openvswitch/flow_table.c:519:24: expected struct callback_head
*head
net/openvswitch/flow_table.c:519:24: got struct callback_head
[noderef] __rcu *
:( Yes my diff with older did not work… Sure I’ve fixed them all now
:)
Will sent out a V3 after some testing…
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