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SubjectRe: [RFC][PATCH] PM / Sleep: Freeze filesystems during system suspend/hibernation
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On Friday, May 25, 2012, Josh Boyer wrote:
> On Fri, Feb 17, 2012 at 3:59 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
> >> commit b94887bbc0621e1e8402e7f0ec4bc3adf46c9a6e
> >> Author: Rafael J. Wysocki <rjw@sisk.pl>
> >> Date: Fri Feb 17 12:42:08 2012 -0500
> >>
> >> Freeze all filesystems during system suspend and (kernel-driven)
> >> hibernation by calling freeze_supers() for all superblocks and thaw
> >> them during the subsequent resume with the help of thaw_supers().
> >>
> >> This makes filesystems stay in a consistent state in case something
> >> goes wrong between system suspend (or hibernation) and the subsequent
> >> resume (e.g. journal replays won't be necessary in those cases). In
> >> particular, this should help to solve a long-standing issue that, in
> >> some cases, during resume from hibernation the boot loader causes the
> >> journal to be replied for the filesystem containing the kernel image
> >> and/or initrd causing it to become inconsistent with the information
> >> stored in the hibernation image.
> >>
> >> The user-space-driven hibernation (s2disk) is not covered by this
> >> change, because the freezing of filesystems prevents s2disk from
> >> accessing device special files it needs to do its job.
> >>
> >> This change is based on earlier work by Nigel Cunningham.
> >>
> >> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
> >>
> >> Rebased to 3.3-rc3 by Josh Boyer <jwboyer@redhat.com>
>
> Did this patch ever wind up going anywhere? Fedora has it sitting in
> our tree with a comment that says "rebase" and I don't see it in the
> linux-next tree at all.
>
> Did if fall through the cracks or was it NAKed somewhere?

No, it wasn't in principle. There were some comments I haven't addressed yet.

Thanks,
Rafael


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