From: Nicholas Bellinger <n...@linux-iscsi.org>
This patch converts core_tpg_deregister() to perform a list splice
for any remaining dynamically generated se_node_acls attached to
se_tpg, before calling tfo->tpg_release_fabric_acl() to free memory.
Cc: Hannes Reinecke <h...@suse.de>
Cc: Christoph Hellwig <h...@lst.de>
Cc: Sagi Grimberg <sa...@mellanox.com>
Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
---
drivers/target/target_core_tpg.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 3d81a72..b5b4053 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -735,6 +735,7 @@ EXPORT_SYMBOL(core_tpg_register);
int core_tpg_deregister(struct se_portal_group *se_tpg)
{
struct se_node_acl *nacl, *nacl_tmp;
+ LIST_HEAD(node_list);
pr_debug("TARGET_CORE[%s]: Deallocating %s struct se_portal_group"
" for endpoint: %s Portal Tag %u\n",
@@ -750,25 +751,22 @@ int core_tpg_deregister(struct se_portal_group *se_tpg)
while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0)
cpu_relax();
+ mutex_lock(&se_tpg->acl_node_mutex);
+ list_splice_init(&se_tpg->acl_node_list, &node_list);
+ mutex_unlock(&se_tpg->acl_node_mutex);
/*
* Release any remaining demo-mode generated se_node_acl that have
* not been released because of TFO->tpg_check_demo_mode_cache() == 1
* in transport_deregister_session().
*/
- mutex_lock(&se_tpg->acl_node_mutex);
- list_for_each_entry_safe(nacl, nacl_tmp, &se_tpg->acl_node_list,
- acl_list) {
+ list_for_each_entry_safe(nacl, nacl_tmp, &node_list, acl_list) {
list_del(&nacl->acl_list);
se_tpg->num_node_acls--;
- mutex_unlock(&se_tpg->acl_node_mutex);
core_tpg_wait_for_nacl_pr_ref(nacl);
core_free_device_list_for_node(nacl, se_tpg);
se_tpg->se_tpg_tfo->tpg_release_fabric_acl(se_tpg, nacl);
-
- mutex_lock(&se_tpg->acl_node_mutex);
}
- mutex_unlock(&se_tpg->acl_node_mutex);
if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL)
core_tpg_remove_lun(se_tpg, &se_tpg->tpg_virt_lun0);
--
1.9.1
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