Re: [PATCH] Make inode64 a remountable option

[Dave Chinner <david@xxxxxxxxxxxxx>]

On Thu, Aug 16, 2012 at 10:20:30PM -0300, Carlos Maiolino wrote:
> > Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> > 
> > I do have a question though... do we care about the remount from inode64
> > to non-inode64 case?
> > 
> I thought about it, but, once we enable inode64 option, remounting it back to
> inode32 may create problems to access inodes greater than (1<<32) - 1, so, I
> don't think we should make inode32 a remountable option.

You can still read, modify and unlink inodes w/ numbers greater than
32 bits when inode32 is active - you just can't allocate new inodes
in those AGs. Hence going back the other way would still be safe to
do on remount, I think.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx