On Wed, Aug 10, 2005 at 07:57:43PM +0300, Pekka J Enberg wrote: > Surely avoiding them is preferred but how do you do that when you have to > mmap'd regions where userspace does memcpy()? The kernel won't much saying > in it until ->nopage. We cannot grab all the required locks in proper order > here because we don't know what size the buffer is. That's why I think lock > sorting won't work of all the cases and thus the problem needs to be taken > care of by the dlm. Hmm, well today in OCFS2 if you're not coming from read or write, the lock is held only for the duration of ->nopage so I don't think we could get into any deadlocks for that usage. --Mark -- Mark Fasheh Senior Software Developer, Oracle mark.fasheh@xxxxxxxxxx -- Linux-cluster@xxxxxxxxxx http://www.redhat.com/mailman/listinfo/linux-cluster
