diff options
| author | Hannes Reinecke <hare@suse.de> | 2015-06-11 11:01:26 +0300 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-06-17 09:27:04 +0300 |
| commit | c51c8e7bcac966f209da83630fc8ca7e6cad279b (patch) | |
| tree | a4823a8d68916d5cdd7a580d4b1bba4dd2a3fa5f /drivers/target/target_core_ua.c | |
| parent | 316058134ffa0017199b460318e109aa79432cc6 (diff) | |
| download | linux-c51c8e7bcac966f209da83630fc8ca7e6cad279b.tar.xz | |
target: use 'se_dev_entry' when allocating UAs
We need to use 'se_dev_entry' as argument when allocating
UAs, otherwise we'll never see any UAs for an implicit
ALUA state transition triggered from userspace.
(Add target_ua_allocate_lun() common caller - nab)
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/target_core_ua.c')
| -rw-r--r-- | drivers/target/target_core_ua.c | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/drivers/target/target_core_ua.c b/drivers/target/target_core_ua.c index e5062245171e..fc095aed5a88 100644 --- a/drivers/target/target_core_ua.c +++ b/drivers/target/target_core_ua.c @@ -87,18 +87,11 @@ target_scsi3_ua_check(struct se_cmd *cmd) } int core_scsi3_ua_allocate( - struct se_node_acl *nacl, - u64 unpacked_lun, + struct se_dev_entry *deve, u8 asc, u8 ascq) { - struct se_dev_entry *deve; struct se_ua *ua, *ua_p, *ua_tmp; - /* - * PASSTHROUGH OPS - */ - if (!nacl) - return -EINVAL; ua = kmem_cache_zalloc(se_ua_cache, GFP_ATOMIC); if (!ua) { @@ -110,12 +103,6 @@ int core_scsi3_ua_allocate( ua->ua_asc = asc; ua->ua_ascq = ascq; - rcu_read_lock(); - deve = target_nacl_find_deve(nacl, unpacked_lun); - if (!deve) { - rcu_read_unlock(); - return -EINVAL; - } spin_lock(&deve->ua_lock); list_for_each_entry_safe(ua_p, ua_tmp, &deve->ua_list, ua_nacl_list) { /* @@ -123,7 +110,6 @@ int core_scsi3_ua_allocate( */ if ((ua_p->ua_asc == asc) && (ua_p->ua_ascq == ascq)) { spin_unlock(&deve->ua_lock); - rcu_read_unlock(); kmem_cache_free(se_ua_cache, ua); return 0; } @@ -170,22 +156,38 @@ int core_scsi3_ua_allocate( spin_unlock(&deve->ua_lock); atomic_inc_mb(&deve->ua_count); - rcu_read_unlock(); return 0; } list_add_tail(&ua->ua_nacl_list, &deve->ua_list); spin_unlock(&deve->ua_lock); - pr_debug("[%s]: Allocated UNIT ATTENTION, mapped LUN: %llu, ASC:" - " 0x%02x, ASCQ: 0x%02x\n", - nacl->se_tpg->se_tpg_tfo->get_fabric_name(), unpacked_lun, + pr_debug("Allocated UNIT ATTENTION, mapped LUN: %llu, ASC:" + " 0x%02x, ASCQ: 0x%02x\n", deve->mapped_lun, asc, ascq); atomic_inc_mb(&deve->ua_count); - rcu_read_unlock(); return 0; } +void target_ua_allocate_lun(struct se_node_acl *nacl, + u32 unpacked_lun, u8 asc, u8 ascq) +{ + struct se_dev_entry *deve; + + if (!nacl) + return; + + rcu_read_lock(); + deve = target_nacl_find_deve(nacl, unpacked_lun); + if (!deve) { + rcu_read_unlock(); + return; + } + + core_scsi3_ua_allocate(deve, asc, ascq); + rcu_read_unlock(); +} + void core_scsi3_ua_release_all( struct se_dev_entry *deve) { |