From: Md Haris Iqbal <haris.iqbal@xxxxxxxxxxxxxxx>
When an RTRS session state changes, the transport layer generates an event
to RNBD. Then RNBD will change the state of the RNBD client device
accordingly.
This commit add kobject_uevent when the RNBD device state changes. With
this udev rules can be configured to react accordingly.
Signed-off-by: Md Haris Iqbal <haris.iqbal@xxxxxxxxx>
Signed-off-by: Jack Wang <jinpu.wang@xxxxxxxxx>
Signed-off-by: Gioh Kim <gi-oh.kim@xxxxxxxxx>
---
drivers/block/rnbd/rnbd-clt-sysfs.c | 1 +
drivers/block/rnbd/rnbd-clt.c | 9 ++++++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/block/rnbd/rnbd-clt-sysfs.c b/drivers/block/rnbd/rnbd-clt-sysfs.c
index 2b6305ecfd5f..f3a5a62b2062 100644
--- a/drivers/block/rnbd/rnbd-clt-sysfs.c
+++ b/drivers/block/rnbd/rnbd-clt-sysfs.c
@@ -490,6 +490,7 @@ static int rnbd_clt_add_dev_kobj(struct rnbd_clt_dev *dev)
ret);
kobject_put(&dev->kobj);
}
+ kobject_uevent(gd_kobj, KOBJ_ONLINE);
return ret;
}
diff --git a/drivers/block/rnbd/rnbd-clt.c b/drivers/block/rnbd/rnbd-clt.c
index ea98124e8ce9..01f67e08afc3 100644
--- a/drivers/block/rnbd/rnbd-clt.c
+++ b/drivers/block/rnbd/rnbd-clt.c
@@ -110,6 +110,7 @@ static int rnbd_clt_change_capacity(struct rnbd_clt_dev *dev,
static int process_msg_open_rsp(struct rnbd_clt_dev *dev,
struct rnbd_msg_open_rsp *rsp)
{
+ struct kobject *gd_kobj;
int err = 0;
mutex_lock(&dev->lock);
@@ -128,6 +129,8 @@ static int process_msg_open_rsp(struct rnbd_clt_dev *dev,
*/
if (dev->nsectors != nsectors)
rnbd_clt_change_capacity(dev, nsectors);
+ gd_kobj = &disk_to_dev(dev->gd)->kobj;
+ kobject_uevent(gd_kobj, KOBJ_ONLINE);
rnbd_clt_info(dev, "Device online, device remapped successfully\n");
}
err = rnbd_clt_set_dev_attr(dev, rsp);
@@ -649,14 +652,18 @@ static int send_msg_sess_info(struct rnbd_clt_session *sess, enum wait_type wait
static void set_dev_states_to_disconnected(struct rnbd_clt_session *sess)
{
struct rnbd_clt_dev *dev;
+ struct kobject *gd_kobj;
mutex_lock(&sess->lock);
list_for_each_entry(dev, &sess->devs_list, list) {
rnbd_clt_err(dev, "Device disconnected.\n");
mutex_lock(&dev->lock);
- if (dev->dev_state == DEV_STATE_MAPPED)
+ if (dev->dev_state == DEV_STATE_MAPPED) {
dev->dev_state = DEV_STATE_MAPPED_DISCONNECTED;
+ gd_kobj = &disk_to_dev(dev->gd)->kobj;
+ kobject_uevent(gd_kobj, KOBJ_OFFLINE);
+ }
mutex_unlock(&dev->lock);
}
mutex_unlock(&sess->lock);
--
2.25.1
