Re: [PATCH] fuse: add a dev ioctl for recovery

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On Wed, 8 Sept 2021 at 04:25, Hao Peng <flyingpenghao@xxxxxxxxx> wrote:
>
> On Tue, Sep 7, 2021 at 5:34 PM Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
> >
> > On Mon, 6 Sept 2021 at 14:36, Hao Peng <flyingpenghao@xxxxxxxxx> wrote:
> > >
> > > For a simple read-only file system, as long as the connection
> > > is not broken, the recovery of the user-mode read-only file
> > > system can be realized by putting the request of the processing
> > > list back into the pending list.
> >
> > Thanks for the patch.
> >
> > Do you have example userspace code for this?
> >
> Under development. When the fuse user-mode file system process is abnormal,
> the process does not terminate (/dev/fuse will not be closed), enter
> the reset procedure,
> and will not open /dev/fuse again during the reinitialization.
> Of course, this can only solve part of the abnormal problem.

Yes, that's what I'm mainly worried about.   Replaying the few
currently pending requests is easy, but does that really help in real
situations?

Much more information is needed about what you are trying to achieve
and how, as well as a working userspace implementation to be able to
judge this patch.

Thanks,
Miklos



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