This fixes various issue brought up in comments to the previous version. Major changes are: bugfixes and renames in the deviceid cache fix Kconfig using a suggestion from Trond moved module_get to simplify and avoid bug in find_pnfs_driver_locked For those interested, the patches can also be found at git://linux-nfs.org/~iisaman/linux-pnfs.git, under the branch devinfo-submit-rc5-trond A rebase of Benny's pnfs-submit branch onto these patches is under the branch bennys-pnfs-submit-on-devinfo-rc5 This is the start of code implementing pnfs, based on RFC 5661. Since sending the whole thing at once would be overwhelming, we are trying to break it into bite sized chunks. This chunk implements the mount/umount infrastructure, as well as sending the LAYOUTGET and GETDEVTICEINFO calls on io (but not actually using the information for io). Note that two major simplifications to the protocol will be made throughout the initial submission process: only the file layout driver is considered, and only whole file layouts are requested. These patches apply against Trond's nfs-for-2.6.37 branch. patches 01-08 implement the mount/umount hooks patches 09-12 implement LAYOUTGET and GETDEVICEINFO -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html