On Tue, Aug 02, 2011 at 02:07:55PM +0100, Joe Thornber wrote: > There isn't that degree of parallelism. We can't have multiple > threads pulling the cache in different directions for performance > reasons. So we have multiple threads that use this in a non-blocking > mode. ie. they use the try_lock variants, and only get the data if > it's already available in the cache. If the non-blocking requests > failed then it gets passed across for a worker thread to deal with. > This is the only thread that updates the cache. There is no issue > here. In fact because we have only a single mutator the block recycling concerns are not an issue for thinp, though they should still be fixed. - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
