Re: silent random symbolic link corruption

[Ryusuke Konishi <ryusuke-sG5X7nlA6pw@public.gmane.org>]

On Sun, 08 Mar 2009 15:37:30 +0900 (JST), Ryusuke Konishi wrote:
> Maybe nilfs should support nano second timestamps, but the inode of
> nilfs is unfortunately short 32-bits for this. :(
> 
> If I can allot one 64-bit field of the btree root array, this can be
> possible. But it breaks the compatibility.  Another candidate is an
> unused 64-bit field reserved for extended attribute. But I'd like to
> reserve it as is because it is enough important. So it's thorny.

I just noticed another possibility. The current nilfs inodes have
64-bit dtime field, which stores their deletion time and is not used
during inode is alive.  We may apply this for the nano-second time
stamps without breaking compatibility. I'll think for a second.

Cheers,
Ryusuke