*rp = xdr_decode_hyper(*rp, &s);
        if (s & 0x1ff) {
-               printk(KERN_WARNING "%s: sector not aligned\n", __func__);
+               printk(KERN_WARNING "NFS: %s: sector not aligned\n", __func__);
                return -1;
        }
        *sp = s >> SECTOR_SHIFT;
 
        dprintk("%s Releasing\n", __func__);
        rv = nfs4_blkdev_put(bdev->bm_mdev);
        if (rv)
-               printk(KERN_ERR "%s nfs4_blkdev_put returns %d\n",
+               printk(KERN_ERR "NFS: %s nfs4_blkdev_put returns %d\n",
                                __func__, rv);
 
        dev_remove(bdev->net, bdev->bm_mdev->bd_dev);
 
                }
                if (err < 0) {
                        if (err != preverr) {
-                               printk(KERN_WARNING "%s: unexpected error "
+                               printk(KERN_WARNING "NFS: %s: unexpected error "
                                        "from svc_recv (%d)\n", __func__, err);
                                preverr = err;
                        }
 
 
        p = xdr_inline_decode(xdr, nbytes);
        if (unlikely(p == NULL))
-               printk(KERN_WARNING "NFSv4 callback reply buffer overflowed!\n");
+               printk(KERN_WARNING "NFS: NFSv4 callback reply buffer overflowed!\n");
        return p;
 }
 
                return status;
        /* We do not like overly long tags! */
        if (hdr->taglen > CB_OP_TAGLEN_MAXSZ - 12) {
-               printk("NFSv4 CALLBACK %s: client sent tag of length %u\n",
+               printk("NFS: NFSv4 CALLBACK %s: client sent tag of length %u\n",
                                __func__, hdr->taglen);
                return htonl(NFS4ERR_RESOURCE);
        }
        if (hdr->minorversion <= 1) {
                hdr->cb_ident = ntohl(*p++); /* ignored by v4.1 */
        } else {
-               printk(KERN_WARNING "%s: NFSv4 server callback with "
+               printk(KERN_WARNING "NFS: %s: NFSv4 server callback with "
                        "illegal minor version %u!\n",
                        __func__, hdr->minorversion);
                return htonl(NFS4ERR_MINOR_VERS_MISMATCH);
 
                         * here.
                         */
                        if (rpc_rmdir(parent))
-                               printk(KERN_ERR "%s: failed to remove clnt dir!\n", __func__);
+                               printk(KERN_ERR "NFS: %s: failed to remove "
+                                       "clnt dir!\n", __func__);
                }
                break;
        default:
-               printk(KERN_ERR "%s: unknown event: %ld\n", __func__, event);
+               printk(KERN_ERR "NFS: %s: unknown event: %ld\n", __func__,
+                       event);
                return -ENOTSUPP;
        }
        return err;
 
        /*
         * Big trouble! The inode has become a different object.
         */
-       printk(KERN_DEBUG "%s: inode %ld mode changed, %07o to %07o\n",
+       printk(KERN_DEBUG "NFS: %s: inode %ld mode changed, %07o to %07o\n",
                        __func__, inode->i_ino, inode->i_mode, fattr->mode);
  out_err:
        /*
 
        idx = nfs4_fl_calc_ds_index(lseg, j);
        ds = nfs4_fl_prepare_ds(lseg, idx);
        if (!ds) {
-               printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__);
+               printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
+                       __func__);
                set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
                set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
                return PNFS_NOT_ATTEMPTED;
        idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
        ds = nfs4_fl_prepare_ds(lseg, idx);
        if (!ds) {
-               printk(KERN_ERR "%s: prepare_ds failed, use MDS\n", __func__);
+               printk(KERN_ERR "NFS: %s: prepare_ds failed, use MDS\n",
+                       __func__);
                set_bit(lo_fail_bit(IOMODE_RW), &lseg->pls_layout->plh_flags);
                set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
                prepare_to_resend_writes(data);
 
        cnt = be32_to_cpup(p);
        dprintk("%s stripe count  %d\n", __func__, cnt);
        if (cnt > NFS4_PNFS_MAX_STRIPE_CNT) {
-               printk(KERN_WARNING "%s: stripe count %d greater than "
+               printk(KERN_WARNING "NFS: %s: stripe count %d greater than "
                       "supported maximum %d\n", __func__,
                        cnt, NFS4_PNFS_MAX_STRIPE_CNT);
                goto out_err_free_scratch;
        num = be32_to_cpup(p);
        dprintk("%s ds_num %u\n", __func__, num);
        if (num > NFS4_PNFS_MAX_MULTI_CNT) {
-               printk(KERN_WARNING "%s: multipath count %d greater than "
+               printk(KERN_WARNING "NFS: %s: multipath count %d greater than "
                        "supported maximum %d\n", __func__,
                        num, NFS4_PNFS_MAX_MULTI_CNT);
                goto out_err_free_stripe_indices;
 
        /* validate stripe indices are all < num */
        if (max_stripe_index >= num) {
-               printk(KERN_WARNING "%s: stripe index %u >= num ds %u\n",
+               printk(KERN_WARNING "NFS: %s: stripe index %u >= num ds %u\n",
                        __func__, max_stripe_index, num);
                goto out_err_free_stripe_indices;
        }
 
        new = decode_device(inode, dev, gfp_flags);
        if (!new) {
-               printk(KERN_WARNING "%s: Could not decode or add device\n",
+               printk(KERN_WARNING "NFS: %s: Could not decode or add device\n",
                        __func__);
                return NULL;
        }
        struct nfs4_pnfs_ds *ds = dsaddr->ds_list[ds_idx];
 
        if (ds == NULL) {
-               printk(KERN_ERR "%s: No data server for offset index %d\n",
+               printk(KERN_ERR "NFS: %s: No data server for offset index %d\n",
                        __func__, ds_idx);
                return NULL;
        }
 
        /* Note: we always want to sleep here! */
        request->fl_flags = fl_flags | FL_SLEEP;
        if (do_vfs_lock(request->fl_file, request) < 0)
-               printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n", __func__);
+               printk(KERN_WARNING "NFS: %s: VFS is out of sync with lock "
+                       "manager!\n", __func__);
 out_unlock:
        up_read(&nfsi->rwsem);
 out:
                err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);
                switch (err) {
                        default:
-                               printk(KERN_ERR "%s: unhandled error %d.\n",
-                                               __func__, err);
+                               printk(KERN_ERR "NFS: %s: unhandled error "
+                                       "%d.\n", __func__, err);
                        case 0:
                        case -ESTALE:
                                goto out;
 
                        case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
                                goto out;
                        default:
-                               printk(KERN_ERR "%s: unhandled error %d. Zeroing state\n",
-                                               __func__, status);
+                               printk(KERN_ERR "NFS: %s: unhandled error %d. "
+                                       "Zeroing state\n", __func__, status);
                        case -ENOMEM:
                        case -NFS4ERR_DENIED:
                        case -NFS4ERR_RECLAIM_BAD:
                                spin_lock(&state->state_lock);
                                list_for_each_entry(lock, &state->lock_states, ls_locks) {
                                        if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
-                                               printk("%s: Lock reclaim failed!\n",
-                                                       __func__);
+                                               printk("NFS: %s: Lock reclaim "
+                                                       "failed!\n", __func__);
                                }
                                spin_unlock(&state->state_lock);
                                nfs4_put_open_state(state);
                }
                switch (status) {
                        default:
-                               printk(KERN_ERR "%s: unhandled error %d. Zeroing state\n",
-                                               __func__, status);
+                               printk(KERN_ERR "NFS: %s: unhandled error %d. "
+                                       "Zeroing state\n", __func__, status);
                        case -ENOENT:
                        case -ENOMEM:
                        case -ESTALE:
 
                return 0;
        }
        if (num > 1)
-               printk(KERN_INFO "%s: Warning: Multiple pNFS layout drivers "
-                       "per filesystem not supported\n", __func__);
+               printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout "
+                       "drivers per filesystem not supported\n", __func__);
 
        /* Decode and set first layout type, move xdr->p past unused types */
        p = xdr_inline_decode(xdr, num * 4);
        attrs->max_reqs = be32_to_cpup(p++);
        nr_attrs = be32_to_cpup(p);
        if (unlikely(nr_attrs > 1)) {
-               printk(KERN_WARNING "%s: Invalid rdma channel attrs count %u\n",
-                       __func__, nr_attrs);
+               printk(KERN_WARNING "NFS: %s: Invalid rdma channel attrs "
+                       "count %u\n", __func__, nr_attrs);
                return -EINVAL;
        }
        if (nr_attrs == 1) {
        dprintk("%s: num_dev %d\n", __func__, res->num_devs);
 
        if (res->num_devs > NFS4_PNFS_GETDEVLIST_MAXNUM) {
-               printk(KERN_ERR "%s too many result dev_num %u\n",
+               printk(KERN_ERR "NFS: %s too many result dev_num %u\n",
                                __func__, res->num_devs);
                return -EIO;
        }
 
 
        if (ret)
                printk(KERN_INFO
-                       "%s: Registering OSD pNFS Layout Driver failed: error=%d\n",
+                       "NFS: %s: Registering OSD pNFS Layout Driver failed: error=%d\n",
                        __func__, ret);
        else
-               printk(KERN_INFO "%s: Registered OSD pNFS Layout Driver\n",
+               printk(KERN_INFO "NFS: %s: Registered OSD pNFS Layout Driver\n",
                        __func__);
        return ret;
 }
 objlayout_exit(void)
 {
        pnfs_unregister_layoutdriver(&objlayout_type);
-       printk(KERN_INFO "%s: Unregistered OSD pNFS Layout Driver\n",
+       printk(KERN_INFO "NFS: %s: Unregistered OSD pNFS Layout Driver\n",
               __func__);
 }
 
 
                        if (!ioerr->oer_errno)
                                continue;
 
-                       printk(KERN_ERR "%s: err[%d]: errno=%d is_write=%d "
-                               "dev(%llx:%llx) par=0x%llx obj=0x%llx "
-                               "offset=0x%llx length=0x%llx\n",
+                       printk(KERN_ERR "NFS: %s: err[%d]: errno=%d "
+                               "is_write=%d dev(%llx:%llx) par=0x%llx "
+                               "obj=0x%llx offset=0x%llx length=0x%llx\n",
                                __func__, i, ioerr->oer_errno,
                                ioerr->oer_iswrite,
                                _DEVID_LO(&ioerr->oer_component.oid_device_id),
 
                goto out_no_driver;
        if (!(server->nfs_client->cl_exchange_flags &
                 (EXCHGID4_FLAG_USE_NON_PNFS | EXCHGID4_FLAG_USE_PNFS_MDS))) {
-               printk(KERN_ERR "%s: id %u cl_exchange_flags 0x%x\n", __func__,
-                      id, server->nfs_client->cl_exchange_flags);
+               printk(KERN_ERR "NFS: %s: id %u cl_exchange_flags 0x%x\n",
+                       __func__, id, server->nfs_client->cl_exchange_flags);
                goto out_no_driver;
        }
        ld_type = find_pnfs_driver(id);
        server->pnfs_curr_ld = ld_type;
        if (ld_type->set_layoutdriver
            && ld_type->set_layoutdriver(server, mntfh)) {
-               printk(KERN_ERR "%s: Error initializing pNFS layout driver %u.\n",
-                               __func__, id);
+               printk(KERN_ERR "NFS: %s: Error initializing pNFS layout "
+                       "driver %u.\n", __func__, id);
                module_put(ld_type->owner);
                goto out_no_driver;
        }
        struct pnfs_layoutdriver_type *tmp;
 
        if (ld_type->id == 0) {
-               printk(KERN_ERR "%s id 0 is reserved\n", __func__);
+               printk(KERN_ERR "NFS: %s id 0 is reserved\n", __func__);
                return status;
        }
        if (!ld_type->alloc_lseg || !ld_type->free_lseg) {
-               printk(KERN_ERR "%s Layout driver must provide "
+               printk(KERN_ERR "NFS: %s Layout driver must provide "
                       "alloc_lseg and free_lseg.\n", __func__);
                return status;
        }
                dprintk("%s Registering id:%u name:%s\n", __func__, ld_type->id,
                        ld_type->name);
        } else {
-               printk(KERN_ERR "%s Module with id %d already loaded!\n",
+               printk(KERN_ERR "NFS: %s Module with id %d already loaded!\n",
                        __func__, ld_type->id);
        }
        spin_unlock(&pnfs_spinlock);