On Thu, Aug 28, 2014 at 09:49:08PM +1000, Dave Chinner wrote: > From: Dave Chinner <dchinner@xxxxxxxxxx> > > Now we are not doing silly things with dirtying buffers beyond EOF > and using invalidation correctly, we can finally reduce the ranges of > writeback and invalidation used by direct IO to match that of the IO > being issued. > > Bring the writeback and invalidation ranges back to match the > generic direct IO code - this will greatly reduce the perturbation > of cached data when direct IO and buffered IO are mixed, but still > provide the same buffered vs direct IO coherency behaviour we > currently have. > > Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx> Looks correct, although I wonder if it's really worth the risk exposing us to the crazy details of the page cache invalidation range notations.. Reviewed-by: Christoph Hellwig <hch@xxxxxx> _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
