zfs discuss - Oct 2006 - ?: ZFS and POSIX

Customer asks whether ZFS is fully POSIX compliant, such as flock?

Is this a function of ZFS, or does VFS deliver this?

Thanks
Steffen

Steffen Weiberle wrote:
> Customer asks whether ZFS is fully POSIX compliant, such as flock?
> 
ZFS is not currently fully POSIX compliant.  Making ZFS fully POSIX 
compliant is still planned and we are currently addressing bugs in this 
area.

Interfaces such as flock() should work just fine now.  The flock 
interface is implemented in both the VFS and in ZFS.  As far as I know 
we have no known issues with flock.

Most of the POSIX related issues are in edge conditions such as removing 
directories when the file system is 100% full.

   -Mark

> Steffen Weiberle wrote:
>> Customer asks whether ZFS is fully POSIX compliant, such as flock?
>>
>
> ZFS is not currently fully POSIX compliant.  Making ZFS fully POSIX
> compliant is still planned and we are currently addressing bugs in this
> area.
>
> Interfaces such as flock() should work just fine now.  The flock
> interface is implemented in both the VFS and in ZFS.  As far as I know
> we have no known issues with flock.
>
> Most of the POSIX related issues are in edge conditions such as removing
> directories when the file system is 100% full.
>
Sometimes I think people roll out the old "is it POSIX compliant"
question
for the sake of argument.  I think that the standards manpage has a LOT to
say on the matter *but* it does mention Solaris 10 specifically. No mention
of Solaris Nevada or Solaris 11 or ZFS in there.

    http://www.blastwave.org/man/standards_5.html

So, while its nice that the manpage is there, its not so nice that it makes
no mention of the OS rev on which we found it.

Just a thought.

Dennis