On Tue, Aug 18, 2015 at 11:16:03AM +0200, Jan Kara wrote:

On Mon 17-08-15 16:02:54, Tejun Heo wrote:

quoted

Hello, Jan.

On Fri, Aug 14, 2015 at 01:14:09PM +0200, Jan Kara wrote:

quoted

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.

Hmm... the only possibility I can think of is tot_write_bandwidth
being zero when it shouldn't be.  I've been staring at the code for a
while now but nothing rings a bell.  Time for another debug patch, I
guess.

Thanks.

-- 
tejun

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