On Wed, May 16, 2018 at 02:48:42PM +0800, Chao Yu wrote:
> > 
> > Thanks, I thought about it too but then I checked that XFS shutdown ioctl is
> > not taking any lock for this ioctl. Hence, I followed the same in F2FS.
> > Do you know why XFS is not taking any lock? 
> I don't know. :(

No problem :)

> > Is it really needed in shutdown ioctl?
> IMO, yes, we should keep freeze and remount be aware of the shutdown 
> operation.

Thanks for your inputs. I will send the updated patch set.

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