RE: fadvise status

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On Thu, 4 Dec 2014, Ma, Jianpeng wrote:
> > -----Original Message-----
> > From: ceph-devel-owner@xxxxxxxxxxxxxxx
> > [mailto:ceph-devel-owner@xxxxxxxxxxxxxxx] On Behalf Of Sage Weil
> > Sent: Thursday, December 4, 2014 2:57 PM
> > To: Ma, Jianpeng
> > Cc: sjust@xxxxxxxxxx; ceph-devel@xxxxxxxxxxxxxxx
> > Subject: fadvise status
> > 
> > Hey,
> > 
> > I'm getting caught up after being out most of last week.  I see:
> > 
> > https://github.com/ceph/ceph/pull/2964
> > 
> > 	client side librados and librbd changes.  ready to go
> > 
> > https://github.com/ceph/ceph/pull/2988
> > 
> > 	osd changes.  look good, but needs a rebase (merge conflict?) and a test.
> > I think at this point you should rebase everything into a single branch so that
> > you can use the client-side stuff to add some simple functional tests in
> > ceph_test_rados_api_[a]io.
> Yes,  merge into a single branch(met one conflict) and WIP on test case.
> > 
> > https://github.com/ceph/ceph/pull/2817
> > 
> > 	I think this is superceded by the above changes.. can we just close it?
> > 
>  In my two pull requests don't contain this. I think they are independent. 
> If you don't have disagreement on 2817. I think you can merge.

Can you review https://github.com/ceph/ceph/pull/3080 ?

I rebased this into a different patch and combined this with the old 
filestore_replica_fadvise.  THis will need to go through the test suite 
(and possibly powercycle suite) to make sure it's safe; we original 
stopped doing this because the comobination of sync_file_range and fadvise 
was triggering a corruption in XFS on power loss, but we don't do 
sync_file_range anymore.

Thanks!
sage
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