btrfs-progs: remove dead condition for btrfs_map_block

The @search_cache_extent() only returns the next cache_extent or NULL,
it will never return the previous cache_extent.
So just remove the dead condition for previous cache_extent handle.

Signed-off-by: Gui Hecheng <guihc.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/volumes.c b/volumes.c
index 5b007fc..a1fd162 100644 (file)
--- a/volumes.c
+++ b/volumes.c
@@ -1320,7 +1320,7 @@ again:
                kfree(multi);
                return -ENOENT;
        }
-       if (ce->start > logical || ce->start + ce->size < logical) {
+       if (ce->start > logical) {
                kfree(multi);
                return -ENOENT;
        }