WARNING: filesystem loop1 was created with 512 inodes, the real maximum is 511, mounting anyway

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: c9c9e6a4 Merge tag 'trace-v5.9-rc5-2' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=138b09d9900000
kernel config: https://syzkaller.appspot.com/x/.config?x=5f4c828c9e3cef97
dashboard link: https://syzkaller.appspot.com/bug?extid=2435de7315366e15f0ca
compiler: gcc (GCC) 10.1.0-syz 20200507

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2435de...@syzkaller.appspotmail.com

BFS-fs: bfs_fill_super(): WARNING: filesystem loop1 was created with 512 inodes, the real maximum is 511, mounting anyway
BFS-fs: bfs_fill_super(): Inode 0x00000002 corrupted on loop1
BFS-fs: bfs_fill_super(): WARNING: filesystem loop1 was created with 512 inodes, the real maximum is 511, mounting anyway
BFS-fs: bfs_fill_super(): Inode 0x00000002 corrupted on loop1


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[Dmitry Vyukov]

#syz fix: bfs: don't use WARNING: string when it's just info.

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