The first patch in this series is just a bugfix. The second and third patches offer progressively more flexibility to dynamically construct the contents of sysfs directories. The second patch delays the allocation of sysfs_dirents until the contents of the directory is requested. This functionality is only used by the attribute_groups in that patch, but could (in principle) be extended to other directory providers. The third patch extends this to permit attribute groups to be dynamically constructed before the directory they're in is populated. I also add a user for this; the much-requested ability to display the MSI-X vectors in use by a device. Both patches also deconstruct the directories / attribute groups when the dentry of the directory goes out of cache. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
