btrfs: factor out sysfs code for sending device uevent

The device uevent belongs to the sysfs API.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index c7c29e5b38a0..5562ce1f7090 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -913,6 +913,17 @@ int btrfs_sysfs_add_device_link(struct btrfs_fs_devices *fs_devices,
         return error;
 }
 
+void btrfs_kobject_uevent(struct block_device *bdev, enum kobject_action action)
+{
+        int ret;
+
+        ret = kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, action);
+        if (ret)
+                pr_warn("BTRFS: Sending event '%d' to kobject: '%s' (%p): failed\n",
+                        action, kobject_name(&disk_to_dev(bdev->bd_disk)->kobj),
+                        &disk_to_dev(bdev->bd_disk)->kobj);
+}
+
 /* /sys/fs/btrfs/ entry */
 static struct kset *btrfs_kset;