Re: [PATCH v3] fs: add the tuncate check of exfat

[Christoph Hellwig]

On Thu, Mar 16, 2023 at 11:15:10PM +0800, Mingyi Cong wrote:
> After my analysis, the reason is that the truncate system call of some file
> systems will be filled with 0 data. We should add some conditional
> judgments to avoid the use of some file systems for truncate. Do you have a
> better suggestion for revision?

As ѕaid we need a flag, be that per-file system or per-inode to flag
the behavior instead of guessing it from the major number.