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

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Message-ID: <67faacdf.050a0220.379d84.0013.GAE@google.com>
Date: Sat, 12 Apr 2025 11:11:43 -0700
From: syzbot <syzbot+aec9606169fbc3a12ca6@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 5fc31936081919a8572a3d644f3fbb258038f337

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linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com.

***

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

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@...il.com>
---
 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