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Date:	Tue, 18 Aug 2015 11:16:03 +0200
From:	Jan Kara <jack@...e.cz>
To:	Tejun Heo <tj@...nel.org>
Cc:	Jan Kara <jack@...e.cz>, Jens Axboe <axboe@...nel.dk>,
	Jan Kara <jack@...e.com>, Eryu Guan <eguan@...hat.com>,
	xfs@....sgi.com, axboe@...com, Dave Chinner <david@...morbit.com>,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	kernel-team@...com
Subject: Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME
 inodes

On Mon 17-08-15 16:02:54, Tejun Heo wrote:
> Hello, Jan.
> 
> On Fri, Aug 14, 2015 at 01:14:09PM +0200, Jan Kara wrote:
> > So the patch looks good to me. But the fact that is fixes Eryu's problem
> > means there is something fishy going on. Either inodes get wrongly attached
> 
> Seriously, it shouldn't affect size syncing or xfs but then again my
> understanding of xfs is severely limited.

Well, i_size == 0 in XFS usually means that writeback didn't get to
flushing delay allocated pages - inode size on disk gets increased only
after the pages are written out in ->end_io callback. So at least this part
makes some sense to me.

								Honza
 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR
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