From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Fri, 23 Aug 2024 21:38:41 +0000 (-0400)
Subject: bcachefs: Fix failure to flush moves before sleeping in copygc
X-Git-Tag: microblaze-v6.13~9^2~147
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=d3204616a67e53fdcad14c7026869330fb382fd4;p=linux-2.6-microblaze.git

bcachefs: Fix failure to flush moves before sleeping in copygc

This fixes an apparent deadlock - rebalance would get stuck trying to
take nocow locks because they weren't being released by copygc.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
---

diff --git a/fs/bcachefs/movinggc.c b/fs/bcachefs/movinggc.c
index deef4f024d20..d86565bf07c8 100644
--- a/fs/bcachefs/movinggc.c
+++ b/fs/bcachefs/movinggc.c
@@ -383,7 +383,7 @@ static int bch2_copygc_thread(void *arg)
 			if (min_member_capacity == U64_MAX)
 				min_member_capacity = 128 * 2048;
 
-			bch2_trans_unlock_long(ctxt.trans);
+			move_buckets_wait(&ctxt, buckets, true);
 			bch2_kthread_io_clock_wait(clock, last + (min_member_capacity >> 6),
 					MAX_SCHEDULE_TIMEOUT);
 		}