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Btrfs: remove unnecessary code in btree_get_extent()
Unnecessary lookup_extent_mapping() is removed because an error is returned to the caller. This patch was made based on the advice from Stefan Behrens, thanks. Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
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0433f20d43
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1 changed files with 1 additions and 7 deletions
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@ -217,16 +217,10 @@ static struct extent_map *btree_get_extent(struct inode *inode,
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write_lock(&em_tree->lock);
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ret = add_extent_mapping(em_tree, em);
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if (ret == -EEXIST) {
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u64 failed_start = em->start;
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u64 failed_len = em->len;
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free_extent_map(em);
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em = lookup_extent_mapping(em_tree, start, len);
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if (!em) {
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lookup_extent_mapping(em_tree, failed_start,
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failed_len);
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if (!em)
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em = ERR_PTR(-EIO);
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}
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} else if (ret) {
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free_extent_map(em);
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em = ERR_PTR(ret);
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