From 27f722ccbe1563629275bb7ee30c0e307f5837a2 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Mon, 30 Sep 2019 16:22:24 -0700 Subject: [PATCH] scsi: target: Remove tpg_list and se_portal_group.se_tpg_node Maintaining tpg_list without ever iterating over it is not useful. Hence remove tpg_list. This patch does not change the behavior of the SCSI target code. Cc: Mike Christie Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Nicholas Bellinger Link: https://lore.kernel.org/r/20190930232224.58980-1-bvanassche@acm.org Signed-off-by: Bart Van Assche Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/target/target_core_tpg.c | 12 ------------ drivers/target/target_core_xcopy.c | 1 - include/target/target_core_base.h | 1 - 3 files changed, 14 deletions(-) diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index e5a71addbb06..d24e0a3ba3ff 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -32,9 +32,6 @@ extern struct se_device *g_lun0_dev; -static DEFINE_SPINLOCK(tpg_lock); -static LIST_HEAD(tpg_list); - /* __core_tpg_get_initiator_node_acl(): * * mutex_lock(&tpg->acl_node_mutex); must be held when calling @@ -475,7 +472,6 @@ int core_tpg_register( se_tpg->se_tpg_wwn = se_wwn; atomic_set(&se_tpg->tpg_pr_ref_count, 0); INIT_LIST_HEAD(&se_tpg->acl_node_list); - INIT_LIST_HEAD(&se_tpg->se_tpg_node); INIT_LIST_HEAD(&se_tpg->tpg_sess_list); spin_lock_init(&se_tpg->session_lock); mutex_init(&se_tpg->tpg_lun_mutex); @@ -494,10 +490,6 @@ int core_tpg_register( } } - spin_lock_bh(&tpg_lock); - list_add_tail(&se_tpg->se_tpg_node, &tpg_list); - spin_unlock_bh(&tpg_lock); - pr_debug("TARGET_CORE[%s]: Allocated portal_group for endpoint: %s, " "Proto: %d, Portal Tag: %u\n", se_tpg->se_tpg_tfo->fabric_name, se_tpg->se_tpg_tfo->tpg_get_wwn(se_tpg) ? @@ -519,10 +511,6 @@ int core_tpg_deregister(struct se_portal_group *se_tpg) tfo->tpg_get_wwn(se_tpg) ? tfo->tpg_get_wwn(se_tpg) : NULL, se_tpg->proto_id, tfo->tpg_get_tag(se_tpg)); - spin_lock_bh(&tpg_lock); - list_del(&se_tpg->se_tpg_node); - spin_unlock_bh(&tpg_lock); - while (atomic_read(&se_tpg->tpg_pr_ref_count) != 0) cpu_relax(); diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index b9b1e92c6f8d..425c1070de08 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -467,7 +467,6 @@ int target_xcopy_setup_pt(void) } memset(&xcopy_pt_tpg, 0, sizeof(struct se_portal_group)); - INIT_LIST_HEAD(&xcopy_pt_tpg.se_tpg_node); INIT_LIST_HEAD(&xcopy_pt_tpg.acl_node_list); INIT_LIST_HEAD(&xcopy_pt_tpg.tpg_sess_list); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 7c9716fe731e..1728e883b7b2 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -876,7 +876,6 @@ struct se_portal_group { /* Spinlock for adding/removing sessions */ spinlock_t session_lock; struct mutex tpg_lun_mutex; - struct list_head se_tpg_node; /* linked list for initiator ACL list */ struct list_head acl_node_list; struct hlist_head tpg_lun_hlist; -- 2.11.0