Re: [linux-pm] pm loss development

From: Mark Brown
Date: Wed May 18 2011 - 18:17:37 EST

On Wed, May 18, 2011 at 09:43:13PM +0200, Rafael J. Wysocki wrote:
> On Wednesday, May 18, 2011, mark gross wrote:

> > I need to get more details on this but I assume its a state where the
> > meta data of the file system is committed to the emmc before lights go
> > off such that when power is reapplied that the damage isn't too big.

> I don't think you can guarantee that the metadata won't be damaged
> without notifying the filesystem of the event (and making it react
> appropriately).

I guess with a journalling filesystem you'd hope that you can at any
point write out what's in flight and have it be safe; if it's a non
journalling filesystem of course all bets are off.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at