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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-22 22:41:14 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-22 22:41:14 +0300 |
commit | 5266e5b12c8b73587130325f7074d2f49ef9e427 (patch) | |
tree | 79abfbf1b047de05860fa832f66fce5078cc6434 /drivers/target/target_core_fabric_configfs.c | |
parent | fc739eba99dc8655369a07ead098de9960e48fff (diff) | |
parent | 5e47f1985d7107331c3f64fb3ec83d66fd73577e (diff) | |
download | linux-5266e5b12c8b73587130325f7074d2f49ef9e427.tar.xz |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:
- Add target_alloc_session() w/ callback helper for doing se_session
allocation + tag + se_node_acl lookup. (HCH + nab)
- Tree-wide fabric driver conversion to use target_alloc_session()
- Convert sbp-target to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Chris Boot + nab)
- Convert usb-gadget to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Andrzej Pietrasiewicz + nab)
- Convert xen-scsiback to use percpu_ida tag pre-allocation, and
TARGET_SCF_ACK_KREF I/O krefs (Juergen Gross + nab)
- Convert tcm_fc to use TARGET_SCF_ACK_KREF I/O + TMR krefs
- Convert ib_srpt to use percpu_ida tag pre-allocation
- Add DebugFS node for qla2xxx target sess list (Quinn)
- Rework iser-target connection termination (Jenny + Sagi)
- Convert iser-target to new CQ API (HCH)
- Add pass-through WRITE_SAME support for IBLOCK (Mike Christie)
- Introduce data_bitmap for asynchronous access of data area (Sheng
Yang + Andy)
- Fix target_release_cmd_kref shutdown comp leak (Himanshu Madhani)
Also, there is a separate PULL request coming for cxgb4 NIC driver
prerequisites for supporting hw iscsi segmentation offload (ISO), that
will be the base for a number of v4.7 developments involving
iscsi-target hw offloads"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (36 commits)
target: Fix target_release_cmd_kref shutdown comp leak
target: Avoid DataIN transfers for non-GOOD SAM status
target/user: Report capability of handling out-of-order completions to userspace
target/user: Fix size_t format-spec build warning
target/user: Don't free expired command when time out
target/user: Introduce data_bitmap, replace data_length/data_head/data_tail
target/user: Free data ring in unified function
target/user: Use iovec[] to describe continuous area
target: Remove enum transport_lunflags_table
target/iblock: pass WRITE_SAME to device if possible
iser-target: Kill the ->isert_cmd back pointer in struct iser_tx_desc
iser-target: Kill struct isert_rdma_wr
iser-target: Convert to new CQ API
iser-target: Split and properly type the login buffer
iser-target: Remove ISER_RECV_DATA_SEG_LEN
iser-target: Remove impossible condition from isert_wait_conn
iser-target: Remove redundant wait in release_conn
iser-target: Rework connection termination
iser-target: Separate flows for np listeners and connections cma events
iser-target: Add new state ISER_CONN_BOUND to isert_conn
...
Diffstat (limited to 'drivers/target/target_core_fabric_configfs.c')
-rw-r--r-- | drivers/target/target_core_fabric_configfs.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c index 8caef31da415..1bd5c72b663e 100644 --- a/drivers/target/target_core_fabric_configfs.c +++ b/drivers/target/target_core_fabric_configfs.c @@ -78,7 +78,7 @@ static int target_fabric_mappedlun_link( struct se_lun_acl, se_lun_group); struct se_portal_group *se_tpg; struct config_item *nacl_ci, *tpg_ci, *tpg_ci_s, *wwn_ci, *wwn_ci_s; - int lun_access; + bool lun_access_ro; if (lun->lun_link_magic != SE_LUN_LINK_MAGIC) { pr_err("Bad lun->lun_link_magic, not a valid lun_ci pointer:" @@ -115,19 +115,18 @@ static int target_fabric_mappedlun_link( } /* * If this struct se_node_acl was dynamically generated with - * tpg_1/attrib/generate_node_acls=1, use the existing deve->lun_flags, - * which be will write protected (READ-ONLY) when + * tpg_1/attrib/generate_node_acls=1, use the existing + * deve->lun_access_ro value, which will be true when * tpg_1/attrib/demo_mode_write_protect=1 */ rcu_read_lock(); deve = target_nacl_find_deve(lacl->se_lun_nacl, lacl->mapped_lun); if (deve) - lun_access = deve->lun_flags; + lun_access_ro = deve->lun_access_ro; else - lun_access = + lun_access_ro = (se_tpg->se_tpg_tfo->tpg_check_prod_mode_write_protect( - se_tpg)) ? TRANSPORT_LUNFLAGS_READ_ONLY : - TRANSPORT_LUNFLAGS_READ_WRITE; + se_tpg)) ? true : false; rcu_read_unlock(); /* * Determine the actual mapped LUN value user wants.. @@ -135,7 +134,7 @@ static int target_fabric_mappedlun_link( * This value is what the SCSI Initiator actually sees the * $FABRIC/$WWPN/$TPGT/lun/lun_* as on their SCSI Initiator Ports. */ - return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access); + return core_dev_add_initiator_node_lun_acl(se_tpg, lacl, lun, lun_access_ro); } static int target_fabric_mappedlun_unlink( @@ -167,8 +166,7 @@ static ssize_t target_fabric_mappedlun_write_protect_show( rcu_read_lock(); deve = target_nacl_find_deve(se_nacl, lacl->mapped_lun); if (deve) { - len = sprintf(page, "%d\n", - (deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY) ? 1 : 0); + len = sprintf(page, "%d\n", deve->lun_access_ro); } rcu_read_unlock(); @@ -181,25 +179,23 @@ static ssize_t target_fabric_mappedlun_write_protect_store( struct se_lun_acl *lacl = item_to_lun_acl(item); struct se_node_acl *se_nacl = lacl->se_lun_nacl; struct se_portal_group *se_tpg = se_nacl->se_tpg; - unsigned long op; + unsigned long wp; int ret; - ret = kstrtoul(page, 0, &op); + ret = kstrtoul(page, 0, &wp); if (ret) return ret; - if ((op != 1) && (op != 0)) + if ((wp != 1) && (wp != 0)) return -EINVAL; - core_update_device_list_access(lacl->mapped_lun, (op) ? - TRANSPORT_LUNFLAGS_READ_ONLY : - TRANSPORT_LUNFLAGS_READ_WRITE, - lacl->se_lun_nacl); + /* wp=1 means lun_access_ro=true */ + core_update_device_list_access(lacl->mapped_lun, wp, lacl->se_lun_nacl); pr_debug("%s_ConfigFS: Changed Initiator ACL: %s" " Mapped LUN: %llu Write Protect bit to %s\n", se_tpg->se_tpg_tfo->get_fabric_name(), - se_nacl->initiatorname, lacl->mapped_lun, (op) ? "ON" : "OFF"); + se_nacl->initiatorname, lacl->mapped_lun, (wp) ? "ON" : "OFF"); return count; |