btrfs: move btrfs_init_dev_replace_tgtdev to dev-replace.c and make static

The function logically belongs there and there's only a single caller,
no need to export it. No code changes.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 0 insertions, 99 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 364f4e7206f4..488935e66779 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2612,105 +2612,6 @@ error:
 	return ret;
 }
 
-/*
- * Initialize a new device for device replace target from a given source dev
- * and path.
- *
- * Return 0 and new device in @device_out, otherwise return < 0
- */
-int btrfs_init_dev_replace_tgtdev(struct btrfs_fs_info *fs_info,
-				  const char *device_path,
-				  struct btrfs_device *srcdev,
-				  struct btrfs_device **device_out)
-{
-	struct btrfs_device *device;
-	struct block_device *bdev;
-	struct list_head *devices;
-	struct rcu_string *name;
-	u64 devid = BTRFS_DEV_REPLACE_DEVID;
-	int ret = 0;
-
-	*device_out = NULL;
-	if (fs_info->fs_devices->seeding) {
-		btrfs_err(fs_info, "the filesystem is a seed filesystem!");
-		return -EINVAL;
-	}
-
-	bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
-				  fs_info->bdev_holder);
-	if (IS_ERR(bdev)) {
-		btrfs_err(fs_info, "target device %s is invalid!", device_path);
-		return PTR_ERR(bdev);
-	}
-
-	filemap_write_and_wait(bdev->bd_inode->i_mapping);
-
-	devices = &fs_info->fs_devices->devices;
-	list_for_each_entry(device, devices, dev_list) {
-		if (device->bdev == bdev) {
-			btrfs_err(fs_info,
-				  "target device is in the filesystem!");
-			ret = -EEXIST;
-			goto error;
-		}
-	}
-
-
-	if (i_size_read(bdev->bd_inode) <
-	    btrfs_device_get_total_bytes(srcdev)) {
-		btrfs_err(fs_info,
-			  "target device is smaller than source device!");
-		ret = -EINVAL;
-		goto error;
-	}
-
-
-	device = btrfs_alloc_device(NULL, &devid, NULL);
-	if (IS_ERR(device)) {
-		ret = PTR_ERR(device);
-		goto error;
-	}
-
-	name = rcu_string_strdup(device_path, GFP_KERNEL);
-	if (!name) {
-		btrfs_free_device(device);
-		ret = -ENOMEM;
-		goto error;
-	}
-	rcu_assign_pointer(device->name, name);
-
-	mutex_lock(&fs_info->fs_devices->device_list_mutex);
-	set_bit(BTRFS_DEV_STATE_WRITEABLE, &device->dev_state);
-	device->generation = 0;
-	device->io_width = fs_info->sectorsize;
-	device->io_align = fs_info->sectorsize;
-	device->sector_size = fs_info->sectorsize;
-	device->total_bytes = btrfs_device_get_total_bytes(srcdev);
-	device->disk_total_bytes = btrfs_device_get_disk_total_bytes(srcdev);
-	device->bytes_used = btrfs_device_get_bytes_used(srcdev);
-	device->commit_total_bytes = srcdev->commit_total_bytes;
-	device->commit_bytes_used = device->bytes_used;
-	device->fs_info = fs_info;
-	device->bdev = bdev;
-	set_bit(BTRFS_DEV_STATE_IN_FS_METADATA, &device->dev_state);
-	set_bit(BTRFS_DEV_STATE_REPLACE_TGT, &device->dev_state);
-	device->mode = FMODE_EXCL;
-	device->dev_stats_valid = 1;
-	set_blocksize(device->bdev, BTRFS_BDEV_BLOCKSIZE);
-	device->fs_devices = fs_info->fs_devices;
-	list_add(&device->dev_list, &fs_info->fs_devices->devices);
-	fs_info->fs_devices->num_devices++;
-	fs_info->fs_devices->open_devices++;
-	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
-
-	*device_out = device;
-	return 0;
-
-error:
-	blkdev_put(bdev, FMODE_EXCL);
-	return ret;
-}
-
 static noinline int btrfs_update_device(struct btrfs_trans_handle *trans,
 					struct btrfs_device *device)
 {