btrfs: unify tree search helper returning prev and next nodes

Simplify helper to return only next and prev pointers, we don't need all
the node/parent/prev/next pointers of __etree_search as there are now
other specialized helpers. Rename parameters so they follow the naming.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2020-06-25 19:03:41 +02:00
commit 9db33891c7