On Mon, Oct 10, 2011 at 07:55:46AM +0200, Markus Trippelsdorf wrote: > Wouldn't it be possible to verify that the problem also goes away with > this simple one liner? We've been through a few variants, and none fixed it while Stefan had to try them on production machines. To be honest I'm not convinced at all that a workqueue was such a good idea for the ail in particular. It works extremly well for things were we can easily define a work item, e.g. an object that gets queued up and a method on it gets exectured. But for the AIL we really have a changing target that needs more or less constant pushing, and the target keeps changing while executing our work. Conceptually it fits the idea of an thread much better, with the added benefit of not relying on finding a combination of workqueue flags that gets the exact behaviour (exectuion ASAP without any limits because of other items or required memory allocation). And unlike the various per-cpu threads we used to have it is only one thread per filesystem anyway. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
