Re: [syzbot] #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5fc31936081919a8572a3d644f3fbb258038f337

From: syzbot
Date: Sat Apr 12 2025 - 14:11:55 EST


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Subject: #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5fc31936081919a8572a3d644f3fbb258038f337
Author: gshahrouzi@xxxxxxxxx

Another test with earlier branch because of unassociated error popping up:
unregister_netdevice: waiting for batadv0 to become free. Usage count = 3.

Signed-off-by: Gabriel Shahrouzi <gshahrouzi@xxxxxxxxx>
---
fs/bcachefs/super.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index b79e80a435e09..788e870bfef6a 100644
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -1757,7 +1757,8 @@ int bch2_dev_remove(struct bch_fs *c, struct bch_dev *ca, int flags)
up_write(&c->state_lock);
return 0;
err:
- if (ca->mi.state == BCH_MEMBER_STATE_rw &&
+ if (test_bit(BCH_FS_rw, &c->flags) &&
+ ca->mi.state == BCH_MEMBER_STATE_rw &&
!percpu_ref_is_zero(&ca->io_ref[READ]))
__bch2_dev_read_write(c, ca);
up_write(&c->state_lock);
--
2.43.0