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btrfs: return void from readahead_tree_block

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

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba 2014-06-15 00:49:36 +02:00
parent 58dc4ce432
commit 6197d86eab
3 changed files with 4 additions and 8 deletions
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6
fs/btrfs/disk-io.c
View file

@ -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,

2
fs/btrfs/disk-io.h
View file

@ -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,

4
fs/btrfs/extent-tree.c
View file

@ -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;