tree 66ab8314fe3281d25f8fced91c973d5b6d5c40ba
parent 6bb826121be244a5a3c8bd8b7d45c47df18810b7
author Nicholas Bellinger <nab@linux-iscsi.org> 1425854027 +0000
committer Nicholas Bellinger <nab@linux-iscsi.org> 1433143484 -0700

target: Convert se_tpg->acl_node_lock to ->acl_node_mutex

This patch converts se_tpg->acl_node_lock to struct mutex, so that
->acl_node_acl walkers in core_clear_lun_from_tpg() can block when
calling core_disable_device_list_for_node().

It also updates core_dev_add_lun() to hold ->acl_node_mutex when
calling core_tpg_add_node_to_devs() to build ->lun_entry_hlist
for dynamically generated se_node_acl.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>