From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Tue, 28 Dec 2021 02:28:50 +0000 (-0500)
Subject: bcachefs: Add an error message for copygc spinning
X-Git-Tag: v6.7-rc1~201^2~1213
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=200472e91c6c6745e6ddf42d1b33265f84b26e68;p=thirdparty%2Fkernel%2Flinux.git

bcachefs: Add an error message for copygc spinning

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---

diff --git a/fs/bcachefs/movinggc.c b/fs/bcachefs/movinggc.c
index 346b9ee667ec7..46a0875135d54 100644
--- a/fs/bcachefs/movinggc.c
+++ b/fs/bcachefs/movinggc.c
@@ -205,6 +205,11 @@ static int bch2_copygc(struct bch_fs *c)
 		up_read(&ca->bucket_lock);
 	}
 
+	if (!h->used) {
+		bch_err_ratelimited(c, "copygc requested to run but found no buckets to move!");
+		return 0;
+	}
+
 	/*
 	 * Our btree node allocations also come out of RESERVE_MOVINGGC:
 	 */