From: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Date: Tue, 30 Apr 2019 05:32:35 +0000 (-0400)
Subject: zygo: btrfs: don't need the merge_ref warning all the time
X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce7db03751a7fd9212b170344cfcf45c51a168e1;p=linux

zygo: btrfs: don't need the merge_ref warning all the time

(cherry picked from commit 9d645400d3987be35397789556c6f80928af11e8)
---

diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index afc2f3726dcc..beb28db4b3a6 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -294,7 +294,7 @@ static bool merge_ref(struct btrfs_trans_handle *trans,
 			/*
 			 * Can't have multiples of the same ref on a tree block.
 			 */
-			WARN_ON(ref->type == BTRFS_TREE_BLOCK_REF_KEY ||
+			WARN_ON_ONCE(ref->type == BTRFS_TREE_BLOCK_REF_KEY ||
 				ref->type == BTRFS_SHARED_BLOCK_REF_KEY);
 		}
 	}