From e89d15eeadb172bd53ca6362bf9ab6b22077224c Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 9 Feb 2011 15:35:03 -0800 Subject: [SCSI] target: Remove procfs based target_core_mib.c code This patch removes the legacy procfs based target_core_mib.c code, and moves the necessary scsi_index_tables functions and defines into target_core_transport.c and target_core_base.h code to allow existing fabric independent statistics to function. This includes the removal of a handful of 'atomic_t mib_ref_count' counters used in struct se_node_acl, se_session and se_hba to prevent removal while using seq_list procfs walking logic. [jejb: fix up compile failures] Signed-off-by: Nicholas A. Bellinger Signed-off-by: James Bottomley --- drivers/target/target_core_tpg.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) (limited to 'drivers/target/target_core_tpg.c') diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index abfa81a57115..c26f67467623 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -275,7 +275,6 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( spin_lock_init(&acl->device_list_lock); spin_lock_init(&acl->nacl_sess_lock); atomic_set(&acl->acl_pr_ref_count, 0); - atomic_set(&acl->mib_ref_count, 0); acl->queue_depth = TPG_TFO(tpg)->tpg_get_default_depth(tpg); snprintf(acl->initiatorname, TRANSPORT_IQN_LEN, "%s", initiatorname); acl->se_tpg = tpg; @@ -318,12 +317,6 @@ void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *nacl) cpu_relax(); } -void core_tpg_wait_for_mib_ref(struct se_node_acl *nacl) -{ - while (atomic_read(&nacl->mib_ref_count) != 0) - cpu_relax(); -} - void core_tpg_clear_object_luns(struct se_portal_group *tpg) { int i, ret; @@ -480,7 +473,6 @@ int core_tpg_del_initiator_node_acl( spin_unlock_bh(&tpg->session_lock); core_tpg_wait_for_nacl_pr_ref(acl); - core_tpg_wait_for_mib_ref(acl); core_clear_initiator_node_from_tpg(acl, tpg); core_free_device_list_for_node(acl, tpg); @@ -701,6 +693,8 @@ EXPORT_SYMBOL(core_tpg_register); int core_tpg_deregister(struct se_portal_group *se_tpg) { + struct se_node_acl *nacl, *nacl_tmp; + printk(KERN_INFO "TARGET_CORE[%s]: Deallocating %s struct se_portal_group" " for endpoint: %s Portal Tag %u\n", (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) ? @@ -714,6 +708,25 @@ int core_tpg_deregister(struct se_portal_group *se_tpg) while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0) cpu_relax(); + /* + * 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(). + */ + spin_lock_bh(&se_tpg->acl_node_lock); + list_for_each_entry_safe(nacl, nacl_tmp, &se_tpg->acl_node_list, + acl_list) { + list_del(&nacl->acl_list); + se_tpg->num_node_acls--; + spin_unlock_bh(&se_tpg->acl_node_lock); + + core_tpg_wait_for_nacl_pr_ref(nacl); + core_free_device_list_for_node(nacl, se_tpg); + TPG_TFO(se_tpg)->tpg_release_fabric_acl(se_tpg, nacl); + + spin_lock_bh(&se_tpg->acl_node_lock); + } + spin_unlock_bh(&se_tpg->acl_node_lock); if (se_tpg->se_tpg_type == TRANSPORT_TPG_TYPE_NORMAL) core_tpg_release_virtual_lun0(se_tpg); -- cgit