Re: [PATCH 3/5] ext4: Implement project ID support for ext4 filesystem

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Mar 12, 2010 at 12:32:09PM +0300, Dmitry Monakhov wrote:
> tytso@xxxxxxx writes:
> 
> > On Thu, Mar 11, 2010 at 12:54:46PM -0700, Andreas Dilger wrote:
> >> A second possibility (if there is really no desire to have more than
> >> a single project ID per inode) is to add a field to the "large"
> >> inode for ext4, though that doesn't help filesystems that were not
> >> formatted that way, and it also consumes space in all inodes even if
> >> this feature is not used.
> >
> > The big question that I'm still uncertain about is how often are
> > people going to be using this feature, and how many project ID's do we
> > really need?  I know Dimitry believes this is going to be the greatest
> > thing since sliced bread, but even for people running virtualization,
> > I'm not sure how many folks really will consider it critical.
> Most of our customers (hosting providers) use quota, otherwise
> it is impossible to restrict disk usage. Currently they have to
> perform full quotecheck after power failure. Which result in huge
> service down time. If we able to use journalled quota all problems
> will be solved.
> Also NFS people was interesting in projectid feature. They want to
> use it for creating safe file-handles.
> http://marc.info/?l=linux-fsdevel&m=126634832431306&w=2

By the way, have you looked at all at what it would take to be able to
encode and decode filehandles with projectid's in them?

--b.
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux