Re: WARNING in ovl_instantiate

[syzbot]

syzbot has bisected this bug to:

commit 01b39dcc95680b04c7af5de7f39f577e9c4865e3
Author: Amir Goldstein <amir73il@xxxxxxxxx>
Date:   Fri May 11 08:15:15 2018 +0000

    ovl: use inode_insert5() to hash a newly created inode

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=176da0cd200000
start commit:   de6629eb Merge tag 'pci-v5.0-fixes-1' of git://git.kernel...
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=14eda0cd200000
console output: https://syzkaller.appspot.com/x/log.txt?x=10eda0cd200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=edf1c3031097c304
dashboard link: https://syzkaller.appspot.com/bug?extid=9c69c282adc4edd2b540
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12c7a94f400000

Reported-by: syzbot+9c69c282adc4edd2b540@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 01b39dcc9568 ("ovl: use inode_insert5() to hash a newly created  
inode")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection