[linux-pm] Freezer: Don't count threads waiting for frozen filesystems.

[Nigel Cunningham]

Hi.

On Wed, 2008-10-29 at 00:24 +0100, Miklos Szeredi wrote:
> On Wed, 29 Oct 2008, Nigel Cunningham wrote:
> > Remember, though, that we're only freezing fuse at the moment, and
> > strictly one filesystem at a time. We can thus happily wait for the
> > i_mutex taken by some other process to be released.
> 
> Not going to work: you need to wait for all requests to be finished,
> but those might depend on some other fuse filesystem which has already
> been frozen.

Okay. In that case, am I right in thinking that the request waiting on
the frozen filesystem will be stuck in request_wait_answer, and the
userspace process that was trying to satisfy the request will be stuck
in the FUSE_MIGHT_FREEZE call that was invoked for the frozen
filesystem?

Regards,

Nigel