syzbot suspects this bug was fixed by commit:
commit f1e67e355c2aafeddf1eac31335709236996d2fe
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Mon Nov 18 13:28:24 2019 +0000
fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1761ce06100000
start commit: 645ff1e8 Merge branch 'for-linus' of git://git.kernel.org/..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=7308e68273924137
dashboard link: https://syzkaller.appspot.com/bug?extid=b364ed862aa07c74bc62
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=152532bb400000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13f73320c00000
If the result looks correct, please mark the bug fixed by replying with:
#syz fix: fs/buffer: Make BH_Uptodate_Lock bit_spin_lock a regular spinlock_t
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
