Am Dienstag, 3. Juli 2007 schrieb Miklos Szeredi:
> > And a further question. The freezer is not atomic. What do you do
> > if a task not yet frozen calls sys_sync(), but fuse is already frozen?
>
> What do you do if a task not yet frozen writes to a pipe, on the other
> end of which is a task already frozen?
The same as you do with a pipe when the reader is not ready.
> It doesn't matter. The only thing that should matter during suspend
> (not hibernate) is saving the state of devices to ram, and putting the
> devices to sleep.
Well, but you did remove sys_sync() from the freezer, which is
and must be called in the hibernate path.
> I'm not sure why this can't be made atomic, but assuming, that it
> can't, fuse should still not need to be implicated. If it is, that's
> an indication about something wrong in the suspend procedure.
Nope, something's wrong in fuse. You must be able to deal with sync
until every task is frozen.
Regards
Oliver
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