On Wed, Feb 03, 2010 at 12:07:06PM -0600, bpm@xxxxxxx wrote:
> Hey Christoph,
> On Wed, Feb 03, 2010 at 06:27:53AM -0500, Christoph Hellwig wrote:
> > That leaves open the NFSD case thought. I'd prefer to have that fixed
> > if possibly. Ben, any chance you could send your patch to use fsync
> > to the nfs list ASAP?
> I'll make some time to work on it.
> > I think we'd be even better off to just force
> > -o wsync and disable ->write_inode entirely for NFS, any chance you
> > could test such a patch on your setup?
> Sure. IIRC, previous tests were w/ -o wsync and write_inode switched to
> fsync passing 1 for fdatasync. I'll try this too.
-o wsync should be very similar to using ->fsync or Dave's new
->write_inode. What the synchronous transaction does is causing a log
force, which is exactly what fsync does in case the inode is still
pinned (except not quite as optimal, but I'll send a patch for that)