btrfs: get fs_info from eb in btrfs_check_chunk_valid

We can read fs_info from extent buffer and can drop it from the
parameters.
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/tree-checker.c

@@ -498,10 +498,10 @@ static void chunk_err(const struct extent_buffer *leaf,
  * Return -EUCLEAN if anything is corrupted.
  * Return 0 if everything is OK.
  */
-int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
-			    struct extent_buffer *leaf,
+int btrfs_check_chunk_valid(struct extent_buffer *leaf,
 			    struct btrfs_chunk *chunk, u64 logical)
 {
+	struct btrfs_fs_info *fs_info = leaf->fs_info;
 	u64 length;
 	u64 stripe_len;
 	u16 num_stripes;
@@ -793,8 +793,7 @@ static int check_leaf_item(struct extent_buffer *leaf,
 		break;
 	case BTRFS_CHUNK_ITEM_KEY:
 		chunk = btrfs_item_ptr(leaf, slot, struct btrfs_chunk);
-		ret = btrfs_check_chunk_valid(leaf->fs_info, leaf, chunk,
-					      key->offset);
+		ret = btrfs_check_chunk_valid(leaf, chunk, key->offset);
 		break;
 	case BTRFS_DEV_ITEM_KEY:
 		ret = check_dev_item(leaf, key, slot);

fs/btrfs/tree-checker.h

@@ -23,8 +23,7 @@ int btrfs_check_leaf_full(struct extent_buffer *leaf);
 int btrfs_check_leaf_relaxed(struct extent_buffer *leaf);
 int btrfs_check_node(struct extent_buffer *node);
 
-int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
-			    struct extent_buffer *leaf,
+int btrfs_check_chunk_valid(struct extent_buffer *leaf,
 			    struct btrfs_chunk *chunk, u64 logical);
 
 #endif

fs/btrfs/volumes.c

@@ -6710,7 +6710,7 @@ static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
 	 * as chunk item in tree block is already verified by tree-checker.
 	 */
 	if (leaf->start == BTRFS_SUPER_INFO_OFFSET) {
-		ret = btrfs_check_chunk_valid(fs_info, leaf, chunk, logical);
+		ret = btrfs_check_chunk_valid(leaf, chunk, logical);
 		if (ret)
 			return ret;
 	}