an mount option question and dunno if right here...

[Dave Chinner]

On Wed, Mar 16, 2016 at 08:48:13AM -0500, Eric Sandeen wrote:
> On 3/16/16 8:03 AM, Marko Weber | 8000 wrote:
> > 
> 
> > Hi Eric,
> > 
> > 
> > my /etc/fstab entry:
> > 
> > /dev/VolGroup01/wiso    /raid5/wiso     xfs     norelatime,lazytime
> > 
> > 
> > 
> > # mount:
> > 
> > 
> > /dev/mapper/VolGroup01-wiso on /raid5/wiso type xfs (rw,relatime,lazytime,attr2,inode64,logbufs=8,logbsize=256k,sunit=1024,swidth=3072,noquota)
> > 
> > 
> > cat /proc/mounts:
> > 
> > /dev/mapper/VolGroup01-wiso /raid5/wiso xfs rw,lazytime,relatime,attr2,inode64,logbufs=8,logbsize=256k,sunit=1024,swidth=3072,noquota 0 0
> > 
> 
> Ok, I stand corrected, sorry; I forgot about this:
> 
> commit 0ae45f63d4ef8d8eeec49c7d8b44a1775fff13e8
> Author: Theodore Ts'o <tytso at mit.edu>
> Date:   Mon Feb 2 00:37:00 2015 -0500
> 
>     vfs: add support for a lazytime mount option

Don't for that lazytime isn't actually implemented by XFS, and we
can't intercept that flag at mount time because it's been added as a
VFS flag. So on everything but ext4 it does nothing, it conflicts
with other atime settings we do support, and we can't really do
anything about it...

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com