Re: [PATCH v4] exfat: check disk status during buffer write

[dongliang cui]

On Mon, Aug 12, 2024 at 8:06 PM Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:
>
> > Apart from generic/622, all other shutdown-related cases can pass.
> >
> > generic/622 fails the test after the shutdown ioctl implementation, but
> > when it's not implemented, this case will be skipped.
> >
> > This case designed to test the lazytime mount option, based on the test
> > results, it appears that the atime and ctime of files cannot be
> > synchronized to the disk through interfaces such as sync or fsync.
> > It seems that it has little to do with the implementation of shutdown
> > itself.
> >
> > If you need detailed information about generic/622, I can upload it.
>
> generic/622 tests that file systems implement at least lazytime
> semantics.  If exfat fails that it probably has timestamp handling
> issue which are unrelated to the shutdown support, but which are only
> exposed by this test that requires shutdown support.  It would be great
> if someone could look into that, but that's not a precondition for
> your patch.
>
Thank you for your help. I will pay attention to the timestamp issue later.