target: Add se_node_acl->acl_free_comp for NodeACL release path

Add se_node_acl->acl_free_comp for NodeACL release path to wait for outstanding
fabric session shutdown to complete in transport_deregister_session() before
finishing NodeACL release from configfs process context.

Also make transport_deregister_session() clear the comp_nacl bit
to skip se_node_acl->acl_free_comp completion for dynamically generated
NodeACL during fabric session shutdown.

Cc: Roland Dreier <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Joern Engel <joern@logfs.org>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index d63079409eff..f8aa300b0d25 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -641,6 +641,7 @@ struct se_node_acl {
         struct config_group     *acl_default_groups[5];
         struct list_head        acl_list;
         struct list_head        acl_sess_list;
+        struct completion       acl_free_comp;
 };
 
 struct se_session {