diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-05-22 05:05:19 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-06-01 10:25:15 +0300 |
| commit | df9766ca9da5d9c1f2bb4eea9c9f16a2e7e8e1a5 (patch) | |
| tree | 975b36ac839245995493ce50c11bda0c0c4651ea /drivers/target/target_core_tpg.c | |
| parent | 84786546b6ff8d50c3e4c1ea877a872cf55d485a (diff) | |
| download | linux-df9766ca9da5d9c1f2bb4eea9c9f16a2e7e8e1a5.tar.xz | |
target: Only reset specific dynamic entries during lun_group creation
This patch changes core_tpg_add_node_to_devs() to avoid unnecessarly
resetting every se_dev_entry in se_node_acl->tpg_lun_hlist when the
operation is driven by an explicit configfs se_lun->lun_group creation
via core_dev_add_lun() to only update a single se_lun.
Otherwise for the second core_tpg_check_initiator_node_acl() case, go
ahead and continue to scan the full set of currently active se_lun in
se_portal_group->tpg_lun_hlist.
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>
Diffstat (limited to 'drivers/target/target_core_tpg.c')
| -rw-r--r-- | drivers/target/target_core_tpg.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index 73c25bda5a25..f66c208386f8 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -89,7 +89,8 @@ EXPORT_SYMBOL(core_tpg_get_initiator_node_acl); */ void core_tpg_add_node_to_devs( struct se_node_acl *acl, - struct se_portal_group *tpg) + struct se_portal_group *tpg, + struct se_lun *lun_orig) { u32 lun_access = 0; struct se_lun *lun; @@ -99,6 +100,8 @@ void core_tpg_add_node_to_devs( hlist_for_each_entry_rcu(lun, &tpg->tpg_lun_hlist, link) { if (lun->lun_status != TRANSPORT_LUN_STATUS_ACTIVE) continue; + if (lun_orig && lun != lun_orig) + continue; dev = lun->lun_se_dev; /* @@ -238,7 +241,7 @@ struct se_node_acl *core_tpg_check_initiator_node_acl( */ if ((tpg->se_tpg_tfo->tpg_check_demo_mode_login_only == NULL) || (tpg->se_tpg_tfo->tpg_check_demo_mode_login_only(tpg) != 1)) - core_tpg_add_node_to_devs(acl, tpg); + core_tpg_add_node_to_devs(acl, tpg, NULL); target_add_node_acl(acl); return acl; |