btrfs: get fs_info from eb in read_one_chunk

We can read fs_info from extent buffer and can drop it from the
parameters.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9a550b26801746cd5f2e91d7679aa304cc346db5..2c04779a6d3c70421159c31b355d2d8c81ff06b0 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6686,10 +6686,10 @@ static u64 calc_stripe_length(u64 type, u64 chunk_len, int num_stripes)
        return div_u64(chunk_len, data_stripes);
 }
 
-static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
-                         struct extent_buffer *leaf,
+static int read_one_chunk(struct btrfs_key *key, struct extent_buffer *leaf,
                          struct btrfs_chunk *chunk)
 {
+       struct btrfs_fs_info *fs_info = leaf->fs_info;
        struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
        struct map_lookup *map;
        struct extent_map *em;
@@ -7069,7 +7069,7 @@ int btrfs_read_sys_array(struct btrfs_fs_info *fs_info)
                        if (cur_offset + len > array_size)
                                goto out_short_read;
 
-                       ret = read_one_chunk(fs_info, &key, sb, chunk);
+                       ret = read_one_chunk(&key, sb, chunk);
                        if (ret)
                                break;
                } else {
@@ -7217,7 +7217,7 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info)
                } else if (found_key.type == BTRFS_CHUNK_ITEM_KEY) {
                        struct btrfs_chunk *chunk;
                        chunk = btrfs_item_ptr(leaf, slot, struct btrfs_chunk);
-                       ret = read_one_chunk(fs_info, &found_key, leaf, chunk);
+                       ret = read_one_chunk(&found_key, leaf, chunk);
                        if (ret)
                                goto error;
                }