Messages in this thread | | | Date | Sat, 3 Jan 2009 23:10:13 +0000 | From | Alan Cox <> | Subject | Re: Power Management with rootfs on SDMMC. |
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> Well, it goes both ways. You can make a nasty mess right now by suspending > and simply not having a working computer when it comes back - all your > work being lost.
Yes but these are both symptoms of the same problem.
> they actually get things right is pretty low, though. So I suspect we'd be > much better off having sane defaults in the kernel instead.
I don't believe "auto-destroy my music collection" is a sane default...
> So it boils down to the fact that if you have something like / or /home > mounted, we really _cannot_ do any better than "assume the user doesn't > screw us up". > > A per-filesystem callback to re-verify at resume might be a good idea, but > a lot of filesystems cannot reasonably do a lot of verification.
A per file system sync and quiesce is I think also part of the requirement. Having the file system media consistent but still mounted before suspending is a good thing anyway (especially with stuff like USB keys that people do then go and remove post suspend) and you can put the device into a consistent state and revalidate it *regardless* of the whether it is / or a music player. What you do if revalidating / fails is another question ;)
Alan
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