[PATCH 0/2] xfs; fixes for 2.7.37-rc4

[Dave Chinner]

The following two patches are bugs fixes needed for 2.6.37. The first fixes the
write truncation problem, and has been updated to pass blocks rather than byte
ranges  into the punch function. The second fixes a log hang triggered by AIL
pushing being unable to move a locked, pinned and stale buffer from the tail of
the log and hence free up log space. Both of these fixes are candidates for a
2.6.36.y stable release.