Commits
Darrick J. Wong committed 479c641273d
xfs: enable buffer deadlock postmortem diagnosis via ftrace Create a second buf_trylock tracepoint so that we can distinguish between a successful and a failed trylock. With this piece, we can use a script to look at the ftrace output to detect buffer deadlocks. [dchinner: update to if/else as per hch's suggestion] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>