Btrfs: Fix wrong free_chunk_space assignment during removing a device

During removing a device, we have modified free_chunk_space when we
shrink the device, so we needn't assign a new value to it after
the device shrink. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f8273bb53b3f..1524b3f44036 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1671,11 +1671,6 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path)
         if (ret)
                 goto error_undo;
 
-        spin_lock(&root->fs_info->free_chunk_lock);
-        root->fs_info->free_chunk_space = device->total_bytes -
-                device->bytes_used;
-        spin_unlock(&root->fs_info->free_chunk_lock);
-
         device->in_fs_metadata = 0;
         btrfs_scrub_cancel_dev(root->fs_info, device);