Dean Hildebrand | 7ab672c | 2010-10-20 00:18:00 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Module for the pnfs nfs4 file layout driver. |
| 3 | * Defines all I/O and Policy interface operations, plus code |
| 4 | * to register itself with the pNFS client. |
| 5 | * |
| 6 | * Copyright (c) 2002 |
| 7 | * The Regents of the University of Michigan |
| 8 | * All Rights Reserved |
| 9 | * |
| 10 | * Dean Hildebrand <dhildebz@umich.edu> |
| 11 | * |
| 12 | * Permission is granted to use, copy, create derivative works, and |
| 13 | * redistribute this software and such derivative works for any purpose, |
| 14 | * so long as the name of the University of Michigan is not used in |
| 15 | * any advertising or publicity pertaining to the use or distribution |
| 16 | * of this software without specific, written prior authorization. If |
| 17 | * the above copyright notice or any other identification of the |
| 18 | * University of Michigan is included in any copy of any portion of |
| 19 | * this software, then the disclaimer below must also be included. |
| 20 | * |
| 21 | * This software is provided as is, without representation or warranty |
| 22 | * of any kind either express or implied, including without limitation |
| 23 | * the implied warranties of merchantability, fitness for a particular |
| 24 | * purpose, or noninfringement. The Regents of the University of |
| 25 | * Michigan shall not be liable for any damages, including special, |
| 26 | * indirect, incidental, or consequential damages, with respect to any |
| 27 | * claim arising out of or in connection with the use of the software, |
| 28 | * even if it has been or is hereafter advised of the possibility of |
| 29 | * such damages. |
| 30 | */ |
| 31 | |
| 32 | #include <linux/nfs_fs.h> |
| 33 | #include "pnfs.h" |
| 34 | |
| 35 | #define NFSDBG_FACILITY NFSDBG_PNFS_LD |
| 36 | |
| 37 | MODULE_LICENSE("GPL"); |
| 38 | MODULE_AUTHOR("Dean Hildebrand <dhildebz@umich.edu>"); |
| 39 | MODULE_DESCRIPTION("The NFSv4 file layout driver"); |
| 40 | |
| 41 | int |
| 42 | filelayout_initialize_mountpoint(struct nfs_server *nfss) |
| 43 | { |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | int |
| 48 | filelayout_uninitialize_mountpoint(struct nfs_server *nfss) |
| 49 | { |
| 50 | dprintk("--> %s\n", __func__); |
| 51 | |
| 52 | return 0; |
| 53 | } |
| 54 | |
| 55 | static struct pnfs_layoutdriver_type filelayout_type = { |
| 56 | .id = LAYOUT_NFSV4_1_FILES, |
| 57 | .name = "LAYOUT_NFSV4_1_FILES", |
| 58 | .owner = THIS_MODULE, |
| 59 | .initialize_mountpoint = filelayout_initialize_mountpoint, |
| 60 | .uninitialize_mountpoint = filelayout_uninitialize_mountpoint, |
| 61 | }; |
| 62 | |
| 63 | static int __init nfs4filelayout_init(void) |
| 64 | { |
| 65 | printk(KERN_INFO "%s: NFSv4 File Layout Driver Registering...\n", |
| 66 | __func__); |
| 67 | return pnfs_register_layoutdriver(&filelayout_type); |
| 68 | } |
| 69 | |
| 70 | static void __exit nfs4filelayout_exit(void) |
| 71 | { |
| 72 | printk(KERN_INFO "%s: NFSv4 File Layout Driver Unregistering...\n", |
| 73 | __func__); |
| 74 | pnfs_unregister_layoutdriver(&filelayout_type); |
| 75 | } |
| 76 | |
| 77 | module_init(nfs4filelayout_init); |
| 78 | module_exit(nfs4filelayout_exit); |