btrfs: return void from readahead_tree_block

Errors in readahead are not fatal and ignored elsewhere in the code.

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

3 files changed, 4 insertions, 8 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ff83748d39da..332f63518156 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1062,19 +1062,17 @@ static const struct address_space_operations btree_aops = {
         .set_page_dirty = btree_set_page_dirty,
 };
 
-int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize)
+void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize)
 {
         struct extent_buffer *buf = NULL;
         struct inode *btree_inode = root->fs_info->btree_inode;
-        int ret = 0;
 
         buf = btrfs_find_create_tree_block(root, bytenr, blocksize);
         if (!buf)
-                return 0;
+                return;
         read_extent_buffer_pages(&BTRFS_I(btree_inode)->io_tree,
                                  buf, 0, WAIT_NONE, btree_get_extent, 0);
         free_extent_buffer(buf);
-        return ret;
 }
 
 int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize,
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 8cd6a53db621..0d9793f6b594 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -46,7 +46,7 @@ struct btrfs_fs_devices;
 
 struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
                                       u32 blocksize, u64 parent_transid);
-int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
+void readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
 int reada_tree_block_flagged(struct btrfs_root *root, u64 bytenr, u32 blocksize,
                          int mirror_num, struct extent_buffer **eb);
 struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 058abd088f0f..e0468a9789a5 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -7486,9 +7486,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
                                 continue;
                 }
 reada:
-                ret = readahead_tree_block(root, bytenr, blocksize);
-                if (ret)
-                        break;
+                readahead_tree_block(root, bytenr, blocksize);
                 nread++;
         }
         wc->reada_slot = slot;