}
EXPORT_SYMBOL_GPL(ife_get_meta_u16);
-int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval)
+int ife_alloc_meta_u32(struct tcf_meta_info *mi, void *metaval, gfp_t gfp)
{
- mi->metaval = kmemdup(metaval, sizeof(u32), GFP_KERNEL);
+ mi->metaval = kmemdup(metaval, sizeof(u32), gfp);
if (!mi->metaval)
return -ENOMEM;
}
EXPORT_SYMBOL_GPL(ife_alloc_meta_u32);
-int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval)
+int ife_alloc_meta_u16(struct tcf_meta_info *mi, void *metaval, gfp_t gfp)
{
- mi->metaval = kmemdup(metaval, sizeof(u16), GFP_KERNEL);
+ mi->metaval = kmemdup(metaval, sizeof(u16), gfp);
if (!mi->metaval)
return -ENOMEM;
}
/* called when adding new meta information
- * under ife->tcf_lock
+ * under ife->tcf_lock for existing action
*/
static int load_metaops_and_vet(struct tcf_ife_info *ife, u32 metaid,
- void *val, int len)
+ void *val, int len, bool exists)
{
struct tcf_meta_ops *ops = find_ife_oplist(metaid);
int ret = 0;
if (!ops) {
ret = -ENOENT;
#ifdef CONFIG_MODULES
- spin_unlock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_unlock_bh(&ife->tcf_lock);
rtnl_unlock();
request_module("ifemeta%u", metaid);
rtnl_lock();
- spin_lock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_lock_bh(&ife->tcf_lock);
ops = find_ife_oplist(metaid);
#endif
}
}
/* called when adding new meta information
- * under ife->tcf_lock
+ * under ife->tcf_lock for existing action
*/
static int add_metainfo(struct tcf_ife_info *ife, u32 metaid, void *metaval,
- int len)
+ int len, bool atomic)
{
struct tcf_meta_info *mi = NULL;
struct tcf_meta_ops *ops = find_ife_oplist(metaid);
if (!ops)
return -ENOENT;
- mi = kzalloc(sizeof(*mi), GFP_KERNEL);
+ mi = kzalloc(sizeof(*mi), atomic ? GFP_ATOMIC : GFP_KERNEL);
if (!mi) {
/*put back what find_ife_oplist took */
module_put(ops->owner);
mi->metaid = metaid;
mi->ops = ops;
if (len > 0) {
- ret = ops->alloc(mi, metaval);
+ ret = ops->alloc(mi, metaval, atomic ? GFP_ATOMIC : GFP_KERNEL);
if (ret != 0) {
kfree(mi);
module_put(ops->owner);
int rc = 0;
int installed = 0;
+ read_lock(&ife_mod_lock);
list_for_each_entry(o, &ifeoplist, list) {
- rc = add_metainfo(ife, o->metaid, NULL, 0);
+ rc = add_metainfo(ife, o->metaid, NULL, 0, true);
if (rc == 0)
installed += 1;
}
+ read_unlock(&ife_mod_lock);
if (installed)
return 0;
spin_unlock_bh(&ife->tcf_lock);
}
-/* under ife->tcf_lock */
-static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb)
+/* under ife->tcf_lock for existing action */
+static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb,
+ bool exists)
{
int len = 0;
int rc = 0;
val = nla_data(tb[i]);
len = nla_len(tb[i]);
- rc = load_metaops_and_vet(ife, i, val, len);
+ rc = load_metaops_and_vet(ife, i, val, len, exists);
if (rc != 0)
return rc;
- rc = add_metainfo(ife, i, val, len);
+ rc = add_metainfo(ife, i, val, len, exists);
if (rc)
return rc;
}
saddr = nla_data(tb[TCA_IFE_SMAC]);
}
- spin_lock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_lock_bh(&ife->tcf_lock);
ife->tcf_action = parm->action;
if (parm->flags & IFE_ENCODE) {
if (ret == ACT_P_CREATED)
_tcf_ife_cleanup(a, bind);
- spin_unlock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_unlock_bh(&ife->tcf_lock);
return err;
}
- err = populate_metalist(ife, tb2);
+ err = populate_metalist(ife, tb2, exists);
if (err)
goto metadata_parse_err;
if (ret == ACT_P_CREATED)
_tcf_ife_cleanup(a, bind);
- spin_unlock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_unlock_bh(&ife->tcf_lock);
return err;
}
}
- spin_unlock_bh(&ife->tcf_lock);
+ if (exists)
+ spin_unlock_bh(&ife->tcf_lock);
if (ret == ACT_P_CREATED)
tcf_hash_insert(tn, a);