use new netlink events helpers tcmu_netlink_init() and
tcmu_netlink_send() to refactor netlink event attribute
TCMU_ATTR_DEV_SIZE(belongs to TCMU_CMD_RECONFIG_DEVICE)
which is also dev_size in configFS.
Signed-off-by: Zhu Lingshan <lszhu@xxxxxxxx>
---
Changes in V2:
- return tcmu_netlink_event_send() directly, instead of a ret value.
drivers/target/target_core_user.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 21ce7dd8420d..c5bc2e1a9c49 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -2299,6 +2299,26 @@ static ssize_t tcmu_dev_size_show(struct config_item *item, char *page)
return snprintf(page, PAGE_SIZE, "%zu\n", udev->dev_size);
}
+static int tcmu_send_dev_size_event(struct tcmu_dev *udev, u64 size)
+{
+ struct sk_buff *skb = NULL;
+ void *msg_header = NULL;
+ int ret = 0;
+
+ ret = tcmu_netlink_event_init(udev, TCMU_CMD_RECONFIG_DEVICE,
+ &skb, &msg_header);
+ if (ret < 0)
+ return ret;
+ ret = nla_put_u64_64bit(skb, TCMU_ATTR_DEV_SIZE,
+ size, TCMU_ATTR_PAD);
+ if (ret < 0) {
+ nlmsg_free(skb);
+ return ret;
+ }
+ return tcmu_netlink_event_send(udev, TCMU_CMD_RECONFIG_DEVICE,
+ &skb, &msg_header);
+}
+
static ssize_t tcmu_dev_size_store(struct config_item *item, const char *page,
size_t count)
{
@@ -2314,8 +2334,7 @@ static ssize_t tcmu_dev_size_store(struct config_item *item, const char *page,
/* Check if device has been configured before */
if (tcmu_dev_configured(udev)) {
- ret = tcmu_netlink_event(udev, TCMU_CMD_RECONFIG_DEVICE,
- TCMU_ATTR_DEV_SIZE, &val);
+ ret = tcmu_send_dev_size_event(udev, val);
if (ret) {
pr_err("Unable to reconfigure device\n");
return ret;
--
2.14.3
