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Commit e0d6cb9c authored by Michael Marineau's avatar Michael Marineau Committed by Eric Van Hensbergen
Browse files

9p: send uevent after adding/removing mount_tag attribute 



This driver adds an attribute to the existing virtio device so a CHANGE
event is required in order udev rules to make use of it. The ADD event
happens before this driver is probed and unlike a more typical driver
like a block device there isn't a higher level device to watch for.

Signed-off-by: default avatarMichael Marineau <michael.marineau@coreos.com>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent b3f8ab4b

net/9p/trans_virtio.c

+5 −0
Original line number Diff line number Diff line
@@ -577,6 +577,10 @@ static int p9_virtio_probe(struct virtio_device *vdev) 
	mutex_lock(&virtio_9p_lock);

	list_add_tail(&chan->chan_list, &virtio_chan_list);

	mutex_unlock(&virtio_9p_lock);



	/* Let udev rules use the new mount_tag attribute. */

	kobject_uevent(&(vdev->dev.kobj), KOBJ_CHANGE);



	return 0;



out_free_tag:
@@ -654,6 +658,7 @@ static void p9_virtio_remove(struct virtio_device *vdev) 
	list_del(&chan->chan_list);

	mutex_unlock(&virtio_9p_lock);

	sysfs_remove_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);

	kobject_uevent(&(vdev->dev.kobj), KOBJ_CHANGE);

	kfree(chan->tag);

	kfree(chan->vc_wq);

	kfree(chan);