[PATCH 0/2] XFS updates for 3.0-stable.

[Christoph Hellwig]

Now for real - two updates that went into Linus' tree recently and
fix issues with peridic metadata writeback and sync not beeing able
write file size updates to disk in some cases.

The executive summary is:  the writeback code slowly decided that the
XFS behaviour in corner cases equals to livelocking, and XFS made some
of this behaviour much more likely since the introduction of the
delaylog mode.