btrfs: remove redundant parameter from reada_start_machine_dev

We can read fs_info from dev.

Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c
index 2deba18886dba0249504317804730011c966dea9..5c1e6bbed1322170dddf4542ba7c3c666d0fa2cb 100644 (file)
--- a/fs/btrfs/reada.c
+++ b/fs/btrfs/reada.c
@@ -653,9 +653,9 @@ static int reada_pick_zone(struct btrfs_device *dev)
        return 1;
 }
 
-static int reada_start_machine_dev(struct btrfs_fs_info *fs_info,
-                                  struct btrfs_device *dev)
+static int reada_start_machine_dev(struct btrfs_device *dev)
 {
+       struct btrfs_fs_info *fs_info = dev->fs_info;
        struct reada_extent *re = NULL;
        int mirror_num = 0;
        struct extent_buffer *eb = NULL;
@@ -768,8 +768,7 @@ static void __reada_start_machine(struct btrfs_fs_info *fs_info)
                list_for_each_entry(device, &fs_devices->devices, dev_list) {
                        if (atomic_read(&device->reada_in_flight) <
                            MAX_IN_FLIGHT)
-                               enqueued += reada_start_machine_dev(fs_info,
-                                                                   device);
+                               enqueued += reada_start_machine_dev(device);
                }
                mutex_unlock(&fs_devices->device_list_mutex);
                total += enqueued;