On Mon, 2010-07-12 at 12:04 -0400, Christoph Hellwig wrote: > On Sun, Jul 11, 2010 at 10:30:00PM -0500, Alex Elder wrote: > > On Mon, 2010-06-28 at 10:34 -0400, Christoph Hellwig wrote: > > > We do need a barrier for the first buffer of a split log write. Otherwise > > > we might incorrectly stamp the tail LSN into transactions in the first > > > block, or not flush data I/O before updating the inode size. > > > > I'm not sure whether "first block" means the one at the beginning > > of the log, or the one at the beginning of a split log write. > > It means beginning of the split write. I can fix up the commit message > if you want. > Don't bother, I will change it to: We do need a barrier for the first buffer of a split log write. Otherwise we might incorrectly stamp the tail LSN into transactions in the first part of the split write, or not flush data I/O before updating the inode size. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs