Re: [PATCH 1/6] xfs: remove the agfl_bno member from struct xfs_agfl

["Darrick J. Wong" <darrick.wong@oracle.com>]

On Mon, Feb 24, 2020 at 02:21:18PM -0800, Christoph Hellwig wrote:
> On Mon, Feb 24, 2020 at 02:19:31PM -0800, Darrick J. Wong wrote:
> > > > Signed-off-by: Christoph Hellwig <hch@lst.de>
> > > 
> > > Any chance we can pick this up for 5.6 to unbreak arm OABI?
> > 
> > Yeah, I can do that.  Is there a Fixes: tag that goes with this?
> 
> I'm not sure what to add.  I think the problem itself has actually
> always been around since adding v5 fs support.  But the build break
> was only caused by the addition of the BUILD_BUG_ON.

Hmm.  That's tricky, since in theory this should go all the way back to
the introduction of the v5 format in 3.x, but that's going to require
explicit backporting to get past all the reorganization and other things
that have happened.  We might just have to hand-backport it to the
stable kernels seeing how the macro name change will probably cause all
sorts of problems with AI backports. :/

> > Also, will you have a chance to respin the last patch for 5.7?
> 
> Last patch in this series?

Yes.  From the discussion of patch 6/6,

"+   __xfs_sb_from_disk(&sb, bp->b_addr, false);

"why not dsb here

"Yes, this should just pass dsb."

--D