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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-03-27 07:51:03 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-06-01 10:24:12 +0300 |
| commit | 79dc9c9e865a7f8c14737453f112ced25deafdef (patch) | |
| tree | 3b2ed302eecee3319868fc5f29c7ecfea1f8f27e /drivers/target/target_core_configfs.c | |
| parent | 80bfdfa92481d431b199eff72788588d13a3988f (diff) | |
| download | linux-79dc9c9e865a7f8c14737453f112ced25deafdef.tar.xz | |
target/pr: Change alloc_registration to avoid pr_reg_tg_pt_lun
This patch changes __core_scsi3_do_alloc_registration() code to
drop pr_reg->pr_reg_tg_pt_lun pointer usage in favor of a new
pr_reg RPTI + existing pr_reg->pr_aptpl_target_lun used by
APTPL metadata logic.
It also includes changes to REGISTER, REGISTER_AND_MOVE and APTPL
feature bit codepaths to use rcu_dereference_check() with the
expected non-zero se_dev_entry->pr_kref reference held.
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_configfs.c')
| -rw-r--r-- | drivers/target/target_core_configfs.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 798386a1b6e7..4a31d4765390 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -817,7 +817,6 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( struct se_device *dev, char *page) { struct se_node_acl *se_nacl; - struct se_lun *lun; struct se_portal_group *se_tpg; struct t10_pr_registration *pr_reg; const struct target_core_fabric_ops *tfo; @@ -832,7 +831,6 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( se_nacl = pr_reg->pr_reg_nacl; se_tpg = se_nacl->se_tpg; - lun = pr_reg->pr_reg_tg_pt_lun; tfo = se_tpg->se_tpg_tfo; len += sprintf(page+len, "SPC-3 Reservation: %s" @@ -840,9 +838,9 @@ static ssize_t target_core_dev_pr_show_attr_res_pr_holder_tg_port( tfo->tpg_get_wwn(se_tpg)); len += sprintf(page+len, "SPC-3 Reservation: Relative Port" " Identifier Tag: %hu %s Portal Group Tag: %hu" - " %s Logical Unit: %u\n", lun->lun_sep->sep_rtpi, + " %s Logical Unit: %u\n", pr_reg->tg_pt_sep_rtpi, tfo->get_fabric_name(), tfo->tpg_get_tag(se_tpg), - tfo->get_fabric_name(), lun->unpacked_lun); + tfo->get_fabric_name(), pr_reg->pr_aptpl_target_lun); out_unlock: spin_unlock(&dev->dev_reservation_lock); |