On Fri, May 08, 2009 at 04:01:13PM +0200, Geert Uytterhoeven wrote: > Remove the mutex serializing access to the cache. > Instead, queue up new requests on a list if the driver is busy. This should use the bio list helpers moved into bio.h in commit 8f3d8ba20e67991b531e9c0227dcd1f99271a32c