Re: [PATCH] common/rc: skip atime related tests on CIFS

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Thanks a lot, Ronnie.

----- Original Message -----
> From: "Ronnie Sahlberg" <lsahlber@xxxxxxxxxx>
> To: "Xiaoli Feng" <xifeng@xxxxxxxxxx>
> Cc: "Eryu Guan" <guaneryu@xxxxxxxxx>, fstests@xxxxxxxxxxxxxxx, linux-cifs@xxxxxxxxxxxxxxx
> Sent: Tuesday, May 29, 2018 7:26:41 AM
> Subject: Re: [PATCH] common/rc: skip atime related tests on CIFS
> 
> Hi Xiaoli,
> 
> I think it is fine to skip the atime tests for CIFS.
> 
> The behaviour of atime/noatime for cifs is basically noatime always.
> When we read from the server the server will update the atime independently
> of
> cisf.ko but then any further reads that we do from cache will never push any
> updates
> to the server.
> 
> Ronnie
> 
> 
> 
> ----- Original Message -----
> > From: "Xiaoli Feng" <xifeng@xxxxxxxxxx>
> > To: "Eryu Guan" <guaneryu@xxxxxxxxx>, "Leif Sahlberg" <lsahlber@xxxxxxxxxx>
> > Cc: fstests@xxxxxxxxxxxxxxx, linux-cifs@xxxxxxxxxxxxxxx
> > Sent: Monday, 28 May, 2018 4:40:56 PM
> > Subject: Re: [PATCH] common/rc: skip atime related tests on CIFS
> > 
> > 
> > Add Ronnie to to list.
> > 
> > Hello Ronnie,
> >   what's the expected behavior from CIFS on atime/noatime? We want to skip
> >   the
> > atime related tests on cifs for xfstests just like nfs. But not sure if
> > it's
> > correct. What do you think about it?
> > 
> > Thanks.
> > 
> > ----- Original Message -----
> > > From: "Eryu Guan" <guaneryu@xxxxxxxxx>
> > > To: "XiaoLi Feng" <xifeng@xxxxxxxxxx>
> > > Cc: fstests@xxxxxxxxxxxxxxx, linux-cifs@xxxxxxxxxxxxxxx
> > > Sent: Sunday, May 27, 2018 8:50:58 PM
> > > Subject: Re: [PATCH] common/rc: skip atime related tests on CIFS
> > > 
> > > On Tue, May 22, 2018 at 11:23:56AM +0800, Xiaoli Feng wrote:
> > > > From: xiaoli feng <xifeng@xxxxxxxxxx>
> > > > 
> > > > The atime related mount options have no effect on cifs mounts
> > > > now or in the future. So skip these tests on CIFS.
> > > > 
> > > > Signed-off-by: xiaoli feng <xifeng@xxxxxxxxxx>
> > > 
> > > Looks fine to me. But I really need an ACK from cifs folks.
> > > 
> > > > ---
> > > >  common/rc | 2 ++
> > > >  1 file changed, 2 insertions(+)
> > > > 
> > > > diff --git a/common/rc b/common/rc
> > > > index ffe5323..d3af55f 100644
> > > > --- a/common/rc
> > > > +++ b/common/rc
> > > > @@ -3244,6 +3244,8 @@ _require_atime()
> > > >  	_exclude_scratch_mount_option "noatime"
> > > >  	if [ "$FSTYP" == "nfs" ]; then
> > > >  		_notrun "atime related mount options have no effect on NFS"
> > > > +	elif [ "$FSTYP" == "cifs" ]; then
> > > > +		_notrun "atime related mount options have no effect on CIFS"
> > > 
> > > Or just change the check to a case-switch on $FSTYP?
> > 
> > Ok, I will change it on the next commit.
> > Thanks!
> > 
> > > 
> > > Thanks,
> > > Eryu
> > > 
> > > >  	fi
> > > >  }
> > > >  
> > > > --
> > > > 1.8.3.1
> > > > 
> > > > --
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