btrfs: dev add should add its sysfs entry
we would need the device links to be created,
when device is added.
Signed-off-by: Anand Jain <Anand.Jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 401677b..7869936 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -625,14 +625,17 @@
return 0;
}
-static int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info)
+int btrfs_kobj_add_device(struct btrfs_fs_info *fs_info,
+ struct btrfs_device *one_device)
{
int error = 0;
struct btrfs_fs_devices *fs_devices = fs_info->fs_devices;
struct btrfs_device *dev;
- fs_info->device_dir_kobj = kobject_create_and_add("devices",
+ if (!fs_info->device_dir_kobj)
+ fs_info->device_dir_kobj = kobject_create_and_add("devices",
&fs_info->super_kobj);
+
if (!fs_info->device_dir_kobj)
return -ENOMEM;
@@ -643,6 +646,9 @@
if (!dev->bdev)
continue;
+ if (one_device && one_device != dev)
+ continue;
+
disk = dev->bdev->bd_part;
disk_kobj = &part_to_dev(disk)->kobj;
@@ -686,7 +692,7 @@
if (error)
goto failure;
- error = btrfs_kobj_add_device(fs_info);
+ error = btrfs_kobj_add_device(fs_info, NULL);
if (error)
goto failure;