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Btrfs: remove superfluous free_extent_buffer in read_block_for_search 

read_block_for_search() can be simplified as:

tmp = find_extent_buffer();
if (tmp)
   return;

...

free_extent_buffer();
read_tree_block();

Apparently, @tmp must be NULL at this point, free_extent_buffer() is not
needed.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Liu Bo 2018-05-18 11:00:19 +08:00 committed by David Sterba
parent 4ca6168327
commit ca19b4a699
1 changed files with 0 additions and 1 deletions
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1
fs/btrfs/ctree.c
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@ -2432,7 +2432,6 @@ read_block_for_search(struct btrfs_root *root, struct btrfs_path *p,
btrfs_unlock_up_safe(p, level + 1);
btrfs_set_path_blocking(p);
free_extent_buffer(tmp);
if (p->reada != READA_NONE)
reada_for_search(fs_info, p, level, slot, key->objectid);