| From | Luis Henriques <> | Subject | [PATCH 3.11 152/272] 9p: send uevent after adding/removing mount_tag attribute | Date | Fri, 6 Dec 2013 12:57:21 +0000 |
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3.11.10.1 -stable review patch. If anyone has any objections, please let me know.
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From: Michael Marineau <michael.marineau@coreos.com>
commit e0d6cb9cd3a3ac8a3b8e5b22b83c4f8619786f22 upstream.
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: Michael Marineau <michael.marineau@coreos.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- net/9p/trans_virtio.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index e1c26b1..990afab 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -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); -- 1.8.3.2
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