btrfs: pass a reloc_control to relocate_file_extent_cluster()

Instead of passing in a reloc_control's data_inode and
file_extent_cluster members, pass in the whole reloc_control structure.
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/relocation.c

@@ -3084,9 +3084,10 @@ static int relocate_one_folio(struct inode *inode, struct file_ra_state *ra,
 	return ret;
 }
 
-static int relocate_file_extent_cluster(struct inode *inode,
-					const struct file_extent_cluster *cluster)
+static int relocate_file_extent_cluster(struct reloc_control *rc)
 {
+	struct inode *inode = rc->data_inode;
+	const struct file_extent_cluster *cluster = &rc->cluster;
 	u64 offset = BTRFS_I(inode)->reloc_block_group_start;
 	unsigned long index;
 	unsigned long last_index;
@@ -3132,7 +3133,7 @@ static noinline_for_stack int relocate_data_extent(struct reloc_control *rc,
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 
 	if (cluster->nr > 0 && extent_key->objectid != cluster->end + 1) {
-		ret = relocate_file_extent_cluster(inode, cluster);
+		ret = relocate_file_extent_cluster(rc);
 		if (ret)
 			return ret;
 		cluster->nr = 0;
@@ -3158,7 +3159,7 @@ static noinline_for_stack int relocate_data_extent(struct reloc_control *rc,
 		 * the cluster we need to relocate.
 		 */
 		root->relocation_src_root = cluster->owning_root;
-		ret = relocate_file_extent_cluster(inode, cluster);
+		ret = relocate_file_extent_cluster(rc);
 		if (ret)
 			return ret;
 		cluster->nr = 0;
@@ -3177,7 +3178,7 @@ static noinline_for_stack int relocate_data_extent(struct reloc_control *rc,
 	cluster->nr++;
 
 	if (cluster->nr >= MAX_EXTENTS) {
-		ret = relocate_file_extent_cluster(inode, cluster);
+		ret = relocate_file_extent_cluster(rc);
 		if (ret)
 			return ret;
 		cluster->nr = 0;
@@ -3775,8 +3776,7 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc)
 	}
 
 	if (!err) {
-		ret = relocate_file_extent_cluster(rc->data_inode,
-						   &rc->cluster);
+		ret = relocate_file_extent_cluster(rc);
 		if (ret < 0)
 			err = ret;
 	}