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Btrfs: switch to btrfs_previous_extent_item()
Since we have introduced btrfs_previous_extent_item() to search previous extent item, just switch into it. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Reviewed-by: Filipe Manana <fdmanana@gmail.com> Signed-off-by: Josef Bacik <jbacik@fb.com>
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1 changed files with 6 additions and 31 deletions
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@ -1325,38 +1325,13 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical,
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if (ret < 0)
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return ret;
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while (1) {
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u32 nritems;
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if (path->slots[0] == 0) {
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btrfs_set_path_blocking(path);
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ret = btrfs_prev_leaf(fs_info->extent_root, path);
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if (ret != 0) {
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if (ret > 0) {
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pr_debug("logical %llu is not within "
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"any extent\n", logical);
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ret = -ENOENT;
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}
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return ret;
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}
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} else {
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path->slots[0]--;
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}
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nritems = btrfs_header_nritems(path->nodes[0]);
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if (nritems == 0) {
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pr_debug("logical %llu is not within any extent\n",
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logical);
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return -ENOENT;
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}
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if (path->slots[0] == nritems)
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path->slots[0]--;
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btrfs_item_key_to_cpu(path->nodes[0], found_key,
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path->slots[0]);
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if (found_key->type == BTRFS_EXTENT_ITEM_KEY ||
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found_key->type == BTRFS_METADATA_ITEM_KEY)
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break;
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ret = btrfs_previous_extent_item(fs_info->extent_root, path, 0);
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if (ret) {
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if (ret > 0)
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ret = -ENOENT;
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return ret;
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}
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btrfs_item_key_to_cpu(path->nodes[0], found_key, path->slots[0]);
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if (found_key->type == BTRFS_METADATA_ITEM_KEY)
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size = fs_info->extent_root->leafsize;
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else if (found_key->type == BTRFS_EXTENT_ITEM_KEY)
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