Re: syncing the disks when entering sleep

Rafael J. Wysocki
2010-01-27T20:50:05Z

On Wednesday 27 January 2010, Pavel Machek wrote:
> On Wed 2010-01-27 01:51:03, Rafael J. Wysocki wrote:
> > On Tuesday 26 January 2010, Pavel Machek wrote:
...
> > >
> > > AFAICT no new interface is needed. Just do SNAPSHOT_FREEZE, then
> > > _S2RAM then _UNFREEZE.
> >
> > That's not quite straightforward and I wouldn't seriously suggest that to
> > anyone.
>
> Three ioctls, seems pretty much ok.

They are for something else. Yes, you could use them for this purpose,
incidentally. No, you shouldn't do that. OK?

Please note that merely _opening_ /dev/snapshot has side effects, so that's
not just "three ioctls".

Rafael