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linux-sg2042
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target: Send UA when changing LUN inventory 

When changind the LUN inventory via core_enable_device_list_for_node()
or core_disable_device_list_for_node() a REPORTED LUNS DATA HAS CHANGED
UA should be send.

(Convert to target_luns_data_has_changed helper usage - hch)

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Hannes Reinecke 2015-06-11 10:01:29 +02:00 committed by Nicholas Bellinger
parent b5aafb16eb
commit 7c0d0d51d2
2 changed files with 20 additions and 4 deletions
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23
drivers/target/target_core_device.c
View File

@ -293,10 +293,22 @@ void target_pr_kref_release(struct kref *kref)
complete(&deve->pr_comp);
}
/* core_enable_device_list_for_node():
*
*
*/
static void
target_luns_data_has_changed(struct se_node_acl *nacl, struct se_dev_entry *new,
bool skip_new)
{
struct se_dev_entry *tmp;
rcu_read_lock();
hlist_for_each_entry_rcu(tmp, &nacl->lun_entry_hlist, link) {
if (skip_new && tmp == new)
continue;
core_scsi3_ua_allocate(tmp, 0x3F,
ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED);
}
rcu_read_unlock();
}
int core_enable_device_list_for_node(
struct se_lun *lun,
struct se_lun_acl *lun_acl,
@ -360,6 +372,7 @@ int core_enable_device_list_for_node(
kref_put(&orig->pr_kref, target_pr_kref_release);
wait_for_completion(&orig->pr_comp);
target_luns_data_has_changed(nacl, new, true);
kfree_rcu(orig, rcu_head);
return 0;
}
@ -373,6 +386,7 @@ int core_enable_device_list_for_node(
list_add_tail(&new->lun_link, &lun->lun_deve_list);
spin_unlock(&lun->lun_deve_lock);
target_luns_data_has_changed(nacl, new, true);
return 0;
}
@ -428,6 +442,7 @@ void core_disable_device_list_for_node(
kfree_rcu(orig, rcu_head);
core_scsi3_free_pr_reg_from_nacl(dev, nacl);
target_luns_data_has_changed(nacl, NULL, false);
}
/* core_clear_lun_from_tpg():

1
drivers/target/target_core_ua.h
View File

@ -26,6 +26,7 @@
#define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS 0x09
#define ASCQ_3FH_INQUIRY_DATA_HAS_CHANGED 0x03
#define ASCQ_3FH_REPORTED_LUNS_DATA_HAS_CHANGED 0x0E
extern struct kmem_cache *se_ua_cache;