Changes from v2: - number of slots is increased more quickly. Every time the highest-number slot is used, we increase by at least 20%. - when xa_store() is used in a context where we no that no allocation can happen, pass '0' as the GFP flag. - report target slots as well as total slots in /proc/fs/nfsd/clients/*/info I've stay with reporting session information in the client info file rather than creating a directory or using netlink. I think the client info file is simple and adequate. I still haven't added support for CB_RECALL_SLOT. While it is helpful, it isn't essential. I'll probably try to add it after the current series lands. Thanks, NeilBrown
