Re: [PATCH 7/7][TAKE5] ext4: support new modes

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

 



On Wed, Jun 27, 2007 at 10:04:56AM +1000, David Chinner wrote:
> On Wed, Jun 27, 2007 at 12:59:08AM +0530, Amit K. Arora wrote:
> > On Tue, Jun 26, 2007 at 12:14:00PM -0400, Andreas Dilger wrote:
> > > On Jun 26, 2007  17:37 +0530, Amit K. Arora wrote:
> > > > I think, modifying ctime/mtime should be dependent on the other flags.
> > > > E.g., if we do not zero out data blocks on allocation/deallocation,
> > > > update only ctime. Otherwise, update ctime and mtime both.
> > > 
> > > I'm only being the advocate for requirements David Chinner has put
> > > forward due to existing behaviour in XFS.  This is one of the reasons
> > > why I think the "flags" mechanism we now have - we can encode the
> > > various different behaviours in any way we want and leave it to the
> > > caller.
> > 
> > I understand. May be we can confirm once more with David Chinner if this
> > is really required. Will it really be a compatibility issue if new XFS
> > preallocations (ie. via fallocate) update mtime/ctime?
> 
> It should be left up to the filesystem to decide. Only the
> filesystem knows whether something changed and the timestamp should
> or should not be updated.

Since Andreas had suggested FA_FL_NO_MTIME flag thinking it as a
requirement from XFS (whereas XFS does not need this flag), I don't think
we need to add this new flag.

Please let know if someone still feels FA_FL_NO_MTIME flag can be
useful.

--
Regards,
Amit Arora

-
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