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Date: Mon, 6 Nov 2006 09:28:39 +1100 From: Neil Brown <neilb@...e.de> To: Pavel Machek <pavel@....cz> Cc: "Rafael J. Wysocki" <rjw@...k.pl>, LKML <linux-kernel@...r.kernel.org>, linux-raid@...r.kernel.org Subject: Re: [RFC][PATCH -mm][Experimental] suspend: Do not freeze md_threads On Sunday November 5, pavel@....cz wrote: > Hi! > > > If there's a swap file on a software RAID, it should be possible to use this > > file for saving the swsusp's suspend image. Also, this file should be > > available to the memory management subsystem when memory is being freed before > > the suspend image is created. > > > > For the above reasons it seems that md_threads should not be frozen during > > the suspend and the appended patch makes this happen, but then there is the > > question if they don't cause any data to be written to disks after the > > suspend image has been created, provided that all filesystems are frozen > > at that time. > > Looks okay to me. It would be nice to have someone (Ingo? Neil?) try > to suspend to swap on md...... Yes... suspending to swap-on-md would probably be fairly easy. Resuming from that same swap might be a bit more of a challenge. If only I had more time... but the patch looks good to me. I'll see that it gets applied. Thanks, NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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