bcachefs: fix for unmount hang

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

bcachefs: fix for unmount hang
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
736affa8 · Kent Overstreet · Kent Overstreet · b935a8a6 · 736affa8
Commit 736affa8 authored Feb 08, 2019 by Kent Overstreet Committed by Kent Overstreet Oct 22, 2023
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fs/bcachefs/alloc_background.c fs/bcachefs/alloc_background.c +2 -1

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--- a/fs/bcachefs/alloc_background.c
+++ b/fs/bcachefs/alloc_background.c
@@ -1257,7 +1257,8 @@ void bch2_dev_allocator_add(struct bch_fs *c, struct bch_dev *ca)
 void bch2_dev_allocator_quiesce(struct bch_fs *c, struct bch_dev *ca)
 {
-	closure_wait_event(&c->freelist_wait, ca->allocator_blocked_full);
+	if (ca->alloc_thread)
+		closure_wait_event(&c->freelist_wait, ca->allocator_blocked_full);
 }
 /* stop allocator thread: */