Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME inodes

From: Jan Kara
Date: Tue Aug 18 2015 - 05:16:13 EST


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@xxxxxxxx>
SUSE Labs, CR
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