Re: writeback tree status (for 3.2 merge window)
From: Wu Fengguang
Date: Wed Nov 02 2011 - 11:14:08 EST
On Wed, Nov 02, 2011 at 05:10:12AM -0400, Christoph Hellwig wrote:
> On Tue, Nov 01, 2011 at 03:43:47PM +0800, Wu Fengguang wrote:
> > Hi,
> >
> > There are 3 patchsets sitting in the writeback tree.
> >
> > 1) IO-less dirty throttling v12
> > https://github.com/fengguang/linux/commits/dirty-throttling-v12
> >
> > 2) writeback reasons tracing from Curt Wohlgemuth
> > https://github.com/fengguang/linux/commits/writeback-reason
> >
> > 3) writeback queuing changes from Jan Kara and me
> > https://github.com/fengguang/linux/commits/requeue-io-wait
> >
> > They have been merged into this branch testing in linux-next for a while:
> >
> > https://github.com/fengguang/linux/commits/writeback-for-next
> >
> > Since (3) still has an unresolved issue (detailed in the below
> > links), it looks better to hold it back for this merge window.
>
> Given that we have run into issues so much with it that's proably
> the better idea.
>
> To fix the originally reported issue with the missing file size updates
> in XFS we plan to simply log all filesize changes in XFS. Currently I
> had this in the 3.3 queue, but in the worst case we might have to move
> this forward to 3.2.
OK. Anyway I'll report any progress early on (3).
> > The patches from (1,2) together with 2 tracing patches essential for
> > debugging (1) have been pushed to the "writeback-for-linus" branch:
> >
> > http://git.kernel.org/?p=linux/kernel/git/wfg/linux.git;a=shortlog;h=refs/heads/writeback-for-linus
> >
> > If no objections, I'll send a pull request to Linus soon.
>
> Please do so. I'm really looking forward to see the I/O-less
> balance_dirty_pages in ASAP.
Done, thanks!
Thanks,
Fengguang
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