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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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6
fs/btrfs/ctree.c
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@@ -2298,7 +2298,7 @@ static void reada_for_search(struct btrfs_root *root,
if ((search <= target && target - search <= 65536) ||
(search > target && search - target <= 65536)) {
gen = btrfs_node_ptr_generation(node, nr);
readahead_tree_block(root, search, blocksize, gen);
readahead_tree_block(root, search, blocksize);
nread += blocksize;
}
nscan++;
@@ -2350,9 +2350,9 @@ static noinline void reada_for_balance(struct btrfs_root *root,
}
if (block1)
readahead_tree_block(root, block1, blocksize, 0);
readahead_tree_block(root, block1, blocksize);
if (block2)
readahead_tree_block(root, block2, blocksize, 0);
readahead_tree_block(root, block2, blocksize);
}