[PATCH] xfs: log IO completion workqueue is a high priority queue

[Christoph Hellwig]

On Wed, Sep 08, 2010 at 07:00:22PM +1000, Dave Chinner wrote:
> queued ahead of all data/metadata IO completions and processed before the
> data/metadata completions. Hence the log never gets stalled, and operations
> needed to clean memory can continue as quickly as possible. This avoids the
> livelock conditions and allos the system to keep running under heavy load as
> per normal.