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 deef4f0..d86565b 100644 (file)
--- 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);
                }