btrfs: relocation: Remove redundant tree level check
authorQu Wenruo <wqu@suse.com>
Fri, 21 Sep 2018 07:20:30 +0000 (15:20 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 15 Oct 2018 15:23:40 +0000 (17:23 +0200)
commit06bbf67244fc63c66340bd31f4b2b60d797e886e
treee7ebf65f5c5f8059b006d5c778d7840a989c7219
parent98ff7b94e4daca8d7ea4352a9a7905cced597a4c
btrfs: relocation: Remove redundant tree level check

Commit 581c1760415c ("btrfs: Validate child tree block's level and first
key") has made tree block level check mandatory.

So if tree block level doesn't match, we won't get a valid extent
buffer.  The extra WARN_ON() check can be removed completely.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/relocation.c