This patch added a function tcmu_send_set_pr_info_event() to
store Persistent Reservation information into a TCMU
device (for example, if we use a RBD device, the information
will be stored in it's metadata), added it's wrapper function
tcmu_set_dev_pr_info() as well.
Signed-off-by: Zhu Lingshan <lszhu@xxxxxxxx>
---
drivers/target/target_core_user.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index a1ed70d0988a..d368c656ef79 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -1698,6 +1698,26 @@ static int tcmu_send_get_pr_info_event(struct tcmu_dev *udev)
&skb, &msg_header);
}
+static int tcmu_send_set_pr_info_event(struct tcmu_dev *udev, char *buf)
+{
+ struct sk_buff *skb = NULL;
+ void *msg_header = NULL;
+ int ret = 0;
+
+ ret = tcmu_netlink_event_init(udev, TCMU_CMD_SET_PR_INFO,
+ &skb, &msg_header);
+ if (ret < 0)
+ return ret;
+ ret = nla_put_string(skb, TCMU_ATTR_PR_INFO, buf);
+ if (ret < 0) {
+ nlmsg_free(skb);
+ return ret;
+ }
+
+ return tcmu_netlink_event_send(udev, TCMU_CMD_SET_PR_INFO,
+ &skb, &msg_header);
+}
+
static int tcmu_update_uio_info(struct tcmu_dev *udev)
{
struct tcmu_hba *hba = udev->hba->hba_ptr;
@@ -1740,6 +1760,15 @@ static int tcmu_get_dev_pr_info(struct tcmu_dev *udev, int *val_len)
return ret;
}
+/*
+ * This function will store PR INFO(a string) to a TCMU
+ * device metadata.
+ */
+static int tcmu_set_dev_pr_info(struct tcmu_dev *udev, void *val)
+{
+ return tcmu_send_set_pr_info_event(udev, val);
+}
+
static int tcmu_configure_device(struct se_device *dev)
{
struct tcmu_dev *udev = TCMU_DEV(dev);
--
2.17.1
--
To unsubscribe from this list: send the line "unsubscribe target-devel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
