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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/extent-tree.c
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@@ -7486,8 +7486,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans,
continue;
}
reada:
ret = readahead_tree_block(root, bytenr, blocksize,
generation);
ret = readahead_tree_block(root, bytenr, blocksize);
if (ret)
break;
nread++;