On Fri, Feb 02, 2018 at 11:45:46AM +0000, Filipe Manana wrote:
> On Tue, Dec 19, 2017 at 7:44 AM, Qu Wenruo <w...@suse.com> wrote:
> > When multiple pending snapshots referring the same source subvolume are
> > executed, enabled quota will cause root item corruption, where root
> > items are using old bytenr (no backref in extent tree).
> >
> > This can be triggered by fstests btrfs/152.
> >
> > The cause is when source subvolume is still dirty, extra commit
> > (simplied transaction commit) of qgroup_account_snapshot() can skip
> > dirty roots not recorded in current transaction, making root item of
> > source subvolume not updated.
> >
> > Fix it by forcing recording source subvolume in current transaction
> > before qgroup sub-transaction commit.
> >
> > Reported-by: Justin Maggard <jmagg...@netgear.com>
> > Signed-off-by: Qu Wenruo <w...@suse.com>
> Reviewed-by: Filipe Manana <fdman...@suse.com>

I overlooked the patch, sorry. Added to next now, thanks.
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