Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  [XFS] Warn on transaction in flight on read-only remount
  xfs: Check buffer lengths in log recovery
  don't reallocate sxp variable passed into xfs_swapext