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authorMichael Marineau <michael.marineau@coreos.com>2013-08-11 08:53:45 +0400
committerEric Van Hensbergen <ericvh@gmail.com>2013-08-26 19:28:22 +0400
commite0d6cb9cd3a3ac8a3b8e5b22b83c4f8619786f22 (patch)
tree76e952d480e4f3793308f3c5b554402cf659475d /net/9p/trans_virtio.c
parentb3f8ab4b7953b4719aaa00c22c1de5d9161f57f5 (diff)
downloadlinux-e0d6cb9cd3a3ac8a3b8e5b22b83c4f8619786f22.tar.xz
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: Michael Marineau <michael.marineau@coreos.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'net/9p/trans_virtio.c')
-rw-r--r--net/9p/trans_virtio.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index e1c26b101830..990afab2be1b 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);