Re: [PATCH v2] fuse: permit freezing while waiting for request answer

[Peter Zijlstra]

On Thu, Aug 20, 2026 at 06:07:18PM +0900, Sergey Senozhatsky wrote:
> On (26/08/20 10:49), Peter Zijlstra wrote:
> > Message-ID: <20260820084933.GA4036497@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> > 
> > On Wed, Aug 19, 2026 at 12:03:32PM +0200, Miklos Szeredi wrote:
> > > Why is this unsafe exactly?  Does that unsafeness apply to
> > > filesystems?  If so why do we allow freezing while blocked on
> > > sb_start_write()?
> > 
> > Getting frozen with lock A held, while another task is blocked on A in
> > an unfreezable state results in the system not being freezable.
> 
> Right, but then the system says "suspend failed" (tasks refuse to freeze
> after 20sec) and just thaws everything back in?

People don't like suspend failing. People like to close their lid, throw
laptop in bag, and expect laptop to not cook itself to death.