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btrfs: remove unused parameter from readahead_tree_block

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The parent_transid parameter has been unused since its introduction in
ca7a79ad8d ("Pass down the expected generation number when reading
tree blocks").  In reada_tree_block, it was even wrongly set to leafsize.
Transid check is done in the proper read and readahead ignores errors.

Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
David Sterba 2014-06-15 00:29:04 +02:00
parent 1d52c78afb
commit 58dc4ce432
5 changed files with 8 additions and 16 deletions
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3
fs/btrfs/disk-io.h
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@ -46,8 +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,
u64 parent_transid);
int 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,