11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/nfs/nfs3proc.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Client-side NFSv3 procedures stubs. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright (C) 1997, Olaf Kirch 71da177e4SLinus Torvalds */ 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #include <linux/mm.h> 101da177e4SLinus Torvalds #include <linux/errno.h> 111da177e4SLinus Torvalds #include <linux/string.h> 121da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 135a0e3ad6STejun Heo #include <linux/slab.h> 141da177e4SLinus Torvalds #include <linux/nfs.h> 151da177e4SLinus Torvalds #include <linux/nfs3.h> 161da177e4SLinus Torvalds #include <linux/nfs_fs.h> 171da177e4SLinus Torvalds #include <linux/nfs_page.h> 181da177e4SLinus Torvalds #include <linux/lockd/bind.h> 19b7fa0554SAndreas Gruenbacher #include <linux/nfs_mount.h> 201da177e4SLinus Torvalds 21006ea73eSChuck Lever #include "iostat.h" 22f7b422b1SDavid Howells #include "internal.h" 23006ea73eSChuck Lever 241da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 251da177e4SLinus Torvalds 26b68d69b8SJeff Layton /* A wrapper to handle the EJUKEBOX and EKEYEXPIRED error messages */ 271da177e4SLinus Torvalds static int 281da177e4SLinus Torvalds nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) 291da177e4SLinus Torvalds { 301da177e4SLinus Torvalds int res; 311da177e4SLinus Torvalds do { 321da177e4SLinus Torvalds res = rpc_call_sync(clnt, msg, flags); 33b68d69b8SJeff Layton if (res != -EJUKEBOX && res != -EKEYEXPIRED) 341da177e4SLinus Torvalds break; 35150030b7SMatthew Wilcox schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME); 361da177e4SLinus Torvalds res = -ERESTARTSYS; 37150030b7SMatthew Wilcox } while (!fatal_signal_pending(current)); 381da177e4SLinus Torvalds return res; 391da177e4SLinus Torvalds } 401da177e4SLinus Torvalds 41dead28daSChuck Lever #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags) 421da177e4SLinus Torvalds 431da177e4SLinus Torvalds static int 44006ea73eSChuck Lever nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) 451da177e4SLinus Torvalds { 46b68d69b8SJeff Layton if (task->tk_status != -EJUKEBOX && task->tk_status != -EKEYEXPIRED) 471da177e4SLinus Torvalds return 0; 48b68d69b8SJeff Layton if (task->tk_status == -EJUKEBOX) 49006ea73eSChuck Lever nfs_inc_stats(inode, NFSIOS_DELAY); 501da177e4SLinus Torvalds task->tk_status = 0; 511da177e4SLinus Torvalds rpc_restart_call(task); 521da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 531da177e4SLinus Torvalds return 1; 541da177e4SLinus Torvalds } 551da177e4SLinus Torvalds 5603c21733SJ. Bruce Fields static int 5703c21733SJ. Bruce Fields do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, 5803c21733SJ. Bruce Fields struct nfs_fsinfo *info) 5903c21733SJ. Bruce Fields { 60dead28daSChuck Lever struct rpc_message msg = { 61dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 62dead28daSChuck Lever .rpc_argp = fhandle, 63dead28daSChuck Lever .rpc_resp = info, 64dead28daSChuck Lever }; 6503c21733SJ. Bruce Fields int status; 6603c21733SJ. Bruce Fields 673110ff80SHarvey Harrison dprintk("%s: call fsinfo\n", __func__); 6803c21733SJ. Bruce Fields nfs_fattr_init(info->fattr); 69dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 703110ff80SHarvey Harrison dprintk("%s: reply fsinfo: %d\n", __func__, status); 7103c21733SJ. Bruce Fields if (!(info->fattr->valid & NFS_ATTR_FATTR)) { 72dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 73dead28daSChuck Lever msg.rpc_resp = info->fattr; 74dead28daSChuck Lever status = rpc_call_sync(client, &msg, 0); 753110ff80SHarvey Harrison dprintk("%s: reply getattr: %d\n", __func__, status); 7603c21733SJ. Bruce Fields } 7703c21733SJ. Bruce Fields return status; 7803c21733SJ. Bruce Fields } 7903c21733SJ. Bruce Fields 801da177e4SLinus Torvalds /* 8154ceac45SDavid Howells * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb 821da177e4SLinus Torvalds */ 831da177e4SLinus Torvalds static int 841da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 851da177e4SLinus Torvalds struct nfs_fsinfo *info) 861da177e4SLinus Torvalds { 871da177e4SLinus Torvalds int status; 881da177e4SLinus Torvalds 8903c21733SJ. Bruce Fields status = do_proc_get_root(server->client, fhandle, info); 905006a76cSDavid Howells if (status && server->nfs_client->cl_rpcclient != server->client) 915006a76cSDavid Howells status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info); 921da177e4SLinus Torvalds return status; 931da177e4SLinus Torvalds } 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds /* 961da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 971da177e4SLinus Torvalds */ 981da177e4SLinus Torvalds static int 991da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1001da177e4SLinus Torvalds struct nfs_fattr *fattr) 1011da177e4SLinus Torvalds { 102dead28daSChuck Lever struct rpc_message msg = { 103dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR], 104dead28daSChuck Lever .rpc_argp = fhandle, 105dead28daSChuck Lever .rpc_resp = fattr, 106dead28daSChuck Lever }; 1071da177e4SLinus Torvalds int status; 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1100e574af1STrond Myklebust nfs_fattr_init(fattr); 111dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 1121da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1131da177e4SLinus Torvalds return status; 1141da177e4SLinus Torvalds } 1151da177e4SLinus Torvalds 1161da177e4SLinus Torvalds static int 1171da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1181da177e4SLinus Torvalds struct iattr *sattr) 1191da177e4SLinus Torvalds { 1201da177e4SLinus Torvalds struct inode *inode = dentry->d_inode; 1211da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1221da177e4SLinus Torvalds .fh = NFS_FH(inode), 1231da177e4SLinus Torvalds .sattr = sattr, 1241da177e4SLinus Torvalds }; 125dead28daSChuck Lever struct rpc_message msg = { 126dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR], 127dead28daSChuck Lever .rpc_argp = &arg, 128dead28daSChuck Lever .rpc_resp = fattr, 129dead28daSChuck Lever }; 1301da177e4SLinus Torvalds int status; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 133659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 134659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1350e574af1STrond Myklebust nfs_fattr_init(fattr); 136dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 13765e4308dSTrond Myklebust if (status == 0) 13865e4308dSTrond Myklebust nfs_setattr_update_inode(inode, sattr); 1391da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1401da177e4SLinus Torvalds return status; 1411da177e4SLinus Torvalds } 1421da177e4SLinus Torvalds 1431da177e4SLinus Torvalds static int 1441da177e4SLinus Torvalds nfs3_proc_lookup(struct inode *dir, struct qstr *name, 1451da177e4SLinus Torvalds struct nfs_fh *fhandle, struct nfs_fattr *fattr) 1461da177e4SLinus Torvalds { 1471da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1481da177e4SLinus Torvalds .fh = NFS_FH(dir), 1491da177e4SLinus Torvalds .name = name->name, 1501da177e4SLinus Torvalds .len = name->len 1511da177e4SLinus Torvalds }; 1521da177e4SLinus Torvalds struct nfs3_diropres res = { 1531da177e4SLinus Torvalds .fh = fhandle, 1541da177e4SLinus Torvalds .fattr = fattr 1551da177e4SLinus Torvalds }; 156dead28daSChuck Lever struct rpc_message msg = { 157dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP], 158dead28daSChuck Lever .rpc_argp = &arg, 159dead28daSChuck Lever .rpc_resp = &res, 160dead28daSChuck Lever }; 1611da177e4SLinus Torvalds int status; 1621da177e4SLinus Torvalds 1631da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 164e1fb4d05STrond Myklebust res.dir_attr = nfs_alloc_fattr(); 165e1fb4d05STrond Myklebust if (res.dir_attr == NULL) 166e1fb4d05STrond Myklebust return -ENOMEM; 167e1fb4d05STrond Myklebust 1680e574af1STrond Myklebust nfs_fattr_init(fattr); 169dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 170e1fb4d05STrond Myklebust nfs_refresh_inode(dir, res.dir_attr); 171dead28daSChuck Lever if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) { 172dead28daSChuck Lever msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR]; 173dead28daSChuck Lever msg.rpc_argp = fhandle; 174dead28daSChuck Lever msg.rpc_resp = fattr; 175dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 176dead28daSChuck Lever } 177e1fb4d05STrond Myklebust nfs_free_fattr(res.dir_attr); 1781da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1791da177e4SLinus Torvalds return status; 1801da177e4SLinus Torvalds } 1811da177e4SLinus Torvalds 1821da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1831da177e4SLinus Torvalds { 1841da177e4SLinus Torvalds struct nfs_fattr fattr; 1851da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1861da177e4SLinus Torvalds .fh = NFS_FH(inode), 1871da177e4SLinus Torvalds }; 1881da177e4SLinus Torvalds struct nfs3_accessres res = { 1891da177e4SLinus Torvalds .fattr = &fattr, 1901da177e4SLinus Torvalds }; 1911da177e4SLinus Torvalds struct rpc_message msg = { 1921da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1931da177e4SLinus Torvalds .rpc_argp = &arg, 1941da177e4SLinus Torvalds .rpc_resp = &res, 195dead28daSChuck Lever .rpc_cred = entry->cred, 1961da177e4SLinus Torvalds }; 1971da177e4SLinus Torvalds int mode = entry->mask; 1981da177e4SLinus Torvalds int status; 1991da177e4SLinus Torvalds 2001da177e4SLinus Torvalds dprintk("NFS call access\n"); 2011da177e4SLinus Torvalds 2021da177e4SLinus Torvalds if (mode & MAY_READ) 2031da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_READ; 2041da177e4SLinus Torvalds if (S_ISDIR(inode->i_mode)) { 2051da177e4SLinus Torvalds if (mode & MAY_WRITE) 2061da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; 2071da177e4SLinus Torvalds if (mode & MAY_EXEC) 2081da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_LOOKUP; 2091da177e4SLinus Torvalds } else { 2101da177e4SLinus Torvalds if (mode & MAY_WRITE) 2111da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; 2121da177e4SLinus Torvalds if (mode & MAY_EXEC) 2131da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_EXECUTE; 2141da177e4SLinus Torvalds } 2150e574af1STrond Myklebust nfs_fattr_init(&fattr); 2161da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2171da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 2181da177e4SLinus Torvalds if (status == 0) { 2191da177e4SLinus Torvalds entry->mask = 0; 2201da177e4SLinus Torvalds if (res.access & NFS3_ACCESS_READ) 2211da177e4SLinus Torvalds entry->mask |= MAY_READ; 2221da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) 2231da177e4SLinus Torvalds entry->mask |= MAY_WRITE; 2241da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) 2251da177e4SLinus Torvalds entry->mask |= MAY_EXEC; 2261da177e4SLinus Torvalds } 2271da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2281da177e4SLinus Torvalds return status; 2291da177e4SLinus Torvalds } 2301da177e4SLinus Torvalds 2311da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2321da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2331da177e4SLinus Torvalds { 2341da177e4SLinus Torvalds struct nfs_fattr fattr; 2351da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2361da177e4SLinus Torvalds .fh = NFS_FH(inode), 2371da177e4SLinus Torvalds .pgbase = pgbase, 2381da177e4SLinus Torvalds .pglen = pglen, 2391da177e4SLinus Torvalds .pages = &page 2401da177e4SLinus Torvalds }; 241dead28daSChuck Lever struct rpc_message msg = { 242dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK], 243dead28daSChuck Lever .rpc_argp = &args, 244dead28daSChuck Lever .rpc_resp = &fattr, 245dead28daSChuck Lever }; 2461da177e4SLinus Torvalds int status; 2471da177e4SLinus Torvalds 2481da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2490e574af1STrond Myklebust nfs_fattr_init(&fattr); 250dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2511da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 2521da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2531da177e4SLinus Torvalds return status; 2541da177e4SLinus Torvalds } 2551da177e4SLinus Torvalds 2560b4aae7aSTrond Myklebust struct nfs3_createdata { 2570b4aae7aSTrond Myklebust struct rpc_message msg; 2580b4aae7aSTrond Myklebust union { 2590b4aae7aSTrond Myklebust struct nfs3_createargs create; 2600b4aae7aSTrond Myklebust struct nfs3_mkdirargs mkdir; 2610b4aae7aSTrond Myklebust struct nfs3_symlinkargs symlink; 2620b4aae7aSTrond Myklebust struct nfs3_mknodargs mknod; 2630b4aae7aSTrond Myklebust } arg; 2640b4aae7aSTrond Myklebust struct nfs3_diropres res; 2650b4aae7aSTrond Myklebust struct nfs_fh fh; 2660b4aae7aSTrond Myklebust struct nfs_fattr fattr; 2670b4aae7aSTrond Myklebust struct nfs_fattr dir_attr; 2680b4aae7aSTrond Myklebust }; 2690b4aae7aSTrond Myklebust 2700b4aae7aSTrond Myklebust static struct nfs3_createdata *nfs3_alloc_createdata(void) 2710b4aae7aSTrond Myklebust { 2720b4aae7aSTrond Myklebust struct nfs3_createdata *data; 2730b4aae7aSTrond Myklebust 2740b4aae7aSTrond Myklebust data = kzalloc(sizeof(*data), GFP_KERNEL); 2750b4aae7aSTrond Myklebust if (data != NULL) { 2760b4aae7aSTrond Myklebust data->msg.rpc_argp = &data->arg; 2770b4aae7aSTrond Myklebust data->msg.rpc_resp = &data->res; 2780b4aae7aSTrond Myklebust data->res.fh = &data->fh; 2790b4aae7aSTrond Myklebust data->res.fattr = &data->fattr; 2800b4aae7aSTrond Myklebust data->res.dir_attr = &data->dir_attr; 2810b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 2820b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 2830b4aae7aSTrond Myklebust } 2840b4aae7aSTrond Myklebust return data; 2850b4aae7aSTrond Myklebust } 2860b4aae7aSTrond Myklebust 2870b4aae7aSTrond Myklebust static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data) 2880b4aae7aSTrond Myklebust { 2890b4aae7aSTrond Myklebust int status; 2900b4aae7aSTrond Myklebust 2910b4aae7aSTrond Myklebust status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0); 2920b4aae7aSTrond Myklebust nfs_post_op_update_inode(dir, data->res.dir_attr); 2930b4aae7aSTrond Myklebust if (status == 0) 2940b4aae7aSTrond Myklebust status = nfs_instantiate(dentry, data->res.fh, data->res.fattr); 2950b4aae7aSTrond Myklebust return status; 2960b4aae7aSTrond Myklebust } 2970b4aae7aSTrond Myklebust 2980b4aae7aSTrond Myklebust static void nfs3_free_createdata(struct nfs3_createdata *data) 2990b4aae7aSTrond Myklebust { 3000b4aae7aSTrond Myklebust kfree(data); 3010b4aae7aSTrond Myklebust } 3020b4aae7aSTrond Myklebust 3031da177e4SLinus Torvalds /* 3041da177e4SLinus Torvalds * Create a regular file. 3051da177e4SLinus Torvalds */ 3061da177e4SLinus Torvalds static int 3071da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 30802a913a7STrond Myklebust int flags, struct nameidata *nd) 3091da177e4SLinus Torvalds { 3100b4aae7aSTrond Myklebust struct nfs3_createdata *data; 311055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 3120b4aae7aSTrond Myklebust int status = -ENOMEM; 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds dprintk("NFS call create %s\n", dentry->d_name.name); 3150b4aae7aSTrond Myklebust 3160b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 3170b4aae7aSTrond Myklebust if (data == NULL) 3180b4aae7aSTrond Myklebust goto out; 3190b4aae7aSTrond Myklebust 3200b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE]; 3210b4aae7aSTrond Myklebust data->arg.create.fh = NFS_FH(dir); 3220b4aae7aSTrond Myklebust data->arg.create.name = dentry->d_name.name; 3230b4aae7aSTrond Myklebust data->arg.create.len = dentry->d_name.len; 3240b4aae7aSTrond Myklebust data->arg.create.sattr = sattr; 3250b4aae7aSTrond Myklebust 3260b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3271da177e4SLinus Torvalds if (flags & O_EXCL) { 3280b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE; 3290b4aae7aSTrond Myklebust data->arg.create.verifier[0] = jiffies; 3300b4aae7aSTrond Myklebust data->arg.create.verifier[1] = current->pid; 3311da177e4SLinus Torvalds } 3321da177e4SLinus Torvalds 333ce3b0f8dSAl Viro sattr->ia_mode &= ~current_umask(); 334055ffbeaSAndreas Gruenbacher 3350b4aae7aSTrond Myklebust for (;;) { 3360b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 3371da177e4SLinus Torvalds 3380b4aae7aSTrond Myklebust if (status != -ENOTSUPP) 3390b4aae7aSTrond Myklebust break; 3400b4aae7aSTrond Myklebust /* If the server doesn't support the exclusive creation 3410b4aae7aSTrond Myklebust * semantics, try again with simple 'guarded' mode. */ 3420b4aae7aSTrond Myklebust switch (data->arg.create.createmode) { 3431da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3440b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_GUARDED; 3451da177e4SLinus Torvalds break; 3461da177e4SLinus Torvalds 3471da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3480b4aae7aSTrond Myklebust data->arg.create.createmode = NFS3_CREATE_UNCHECKED; 3491da177e4SLinus Torvalds break; 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3521da177e4SLinus Torvalds goto out; 3531da177e4SLinus Torvalds } 3540b4aae7aSTrond Myklebust nfs_fattr_init(data->res.dir_attr); 3550b4aae7aSTrond Myklebust nfs_fattr_init(data->res.fattr); 3561da177e4SLinus Torvalds } 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds if (status != 0) 3591da177e4SLinus Torvalds goto out; 3601da177e4SLinus Torvalds 3611da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3621da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3630b4aae7aSTrond Myklebust if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) { 3641da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3671da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3681da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3691da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3701da177e4SLinus Torvalds 3711da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3721da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3731da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3740b4aae7aSTrond Myklebust status = nfs3_proc_setattr(dentry, data->res.fattr, sattr); 3750b4aae7aSTrond Myklebust nfs_post_op_update_inode(dentry->d_inode, data->res.fattr); 3761da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 377055ffbeaSAndreas Gruenbacher if (status != 0) 378055ffbeaSAndreas Gruenbacher goto out; 3790b4aae7aSTrond Myklebust } 380055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 3811da177e4SLinus Torvalds out: 3820b4aae7aSTrond Myklebust nfs3_free_createdata(data); 3831da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3841da177e4SLinus Torvalds return status; 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds static int 3881da177e4SLinus Torvalds nfs3_proc_remove(struct inode *dir, struct qstr *name) 3891da177e4SLinus Torvalds { 3904fdc17b2STrond Myklebust struct nfs_removeargs arg = { 3911da177e4SLinus Torvalds .fh = NFS_FH(dir), 3924fdc17b2STrond Myklebust .name.len = name->len, 3934fdc17b2STrond Myklebust .name.name = name->name, 3941da177e4SLinus Torvalds }; 3954fdc17b2STrond Myklebust struct nfs_removeres res; 3961da177e4SLinus Torvalds struct rpc_message msg = { 3971da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 3981da177e4SLinus Torvalds .rpc_argp = &arg, 3994fdc17b2STrond Myklebust .rpc_resp = &res, 4001da177e4SLinus Torvalds }; 4011da177e4SLinus Torvalds int status; 4021da177e4SLinus Torvalds 4031da177e4SLinus Torvalds dprintk("NFS call remove %s\n", name->name); 4044fdc17b2STrond Myklebust nfs_fattr_init(&res.dir_attr); 4051da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 4064fdc17b2STrond Myklebust nfs_post_op_update_inode(dir, &res.dir_attr); 4071da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4081da177e4SLinus Torvalds return status; 4091da177e4SLinus Torvalds } 4101da177e4SLinus Torvalds 411e4eff1a6STrond Myklebust static void 412e4eff1a6STrond Myklebust nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir) 4131da177e4SLinus Torvalds { 4141da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4151da177e4SLinus Torvalds } 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds static int 418e4eff1a6STrond Myklebust nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir) 4191da177e4SLinus Torvalds { 420e4eff1a6STrond Myklebust struct nfs_removeres *res; 421e4eff1a6STrond Myklebust if (nfs3_async_handle_jukebox(task, dir)) 4221da177e4SLinus Torvalds return 0; 423e4eff1a6STrond Myklebust res = task->tk_msg.rpc_resp; 424e4eff1a6STrond Myklebust nfs_post_op_update_inode(dir, &res->dir_attr); 425e4eff1a6STrond Myklebust return 1; 4261da177e4SLinus Torvalds } 4271da177e4SLinus Torvalds 4281da177e4SLinus Torvalds static int 4291da177e4SLinus Torvalds nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, 4301da177e4SLinus Torvalds struct inode *new_dir, struct qstr *new_name) 4311da177e4SLinus Torvalds { 4321da177e4SLinus Torvalds struct nfs_fattr old_dir_attr, new_dir_attr; 4331da177e4SLinus Torvalds struct nfs3_renameargs arg = { 4341da177e4SLinus Torvalds .fromfh = NFS_FH(old_dir), 4351da177e4SLinus Torvalds .fromname = old_name->name, 4361da177e4SLinus Torvalds .fromlen = old_name->len, 4371da177e4SLinus Torvalds .tofh = NFS_FH(new_dir), 4381da177e4SLinus Torvalds .toname = new_name->name, 4391da177e4SLinus Torvalds .tolen = new_name->len 4401da177e4SLinus Torvalds }; 4411da177e4SLinus Torvalds struct nfs3_renameres res = { 4421da177e4SLinus Torvalds .fromattr = &old_dir_attr, 4431da177e4SLinus Torvalds .toattr = &new_dir_attr 4441da177e4SLinus Torvalds }; 445dead28daSChuck Lever struct rpc_message msg = { 446dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME], 447dead28daSChuck Lever .rpc_argp = &arg, 448dead28daSChuck Lever .rpc_resp = &res, 449dead28daSChuck Lever }; 4501da177e4SLinus Torvalds int status; 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvalds dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); 4530e574af1STrond Myklebust nfs_fattr_init(&old_dir_attr); 4540e574af1STrond Myklebust nfs_fattr_init(&new_dir_attr); 455dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0); 456decf491fSTrond Myklebust nfs_post_op_update_inode(old_dir, &old_dir_attr); 457decf491fSTrond Myklebust nfs_post_op_update_inode(new_dir, &new_dir_attr); 4581da177e4SLinus Torvalds dprintk("NFS reply rename: %d\n", status); 4591da177e4SLinus Torvalds return status; 4601da177e4SLinus Torvalds } 4611da177e4SLinus Torvalds 4621da177e4SLinus Torvalds static int 4631da177e4SLinus Torvalds nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) 4641da177e4SLinus Torvalds { 4651da177e4SLinus Torvalds struct nfs_fattr dir_attr, fattr; 4661da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4671da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4681da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4691da177e4SLinus Torvalds .toname = name->name, 4701da177e4SLinus Torvalds .tolen = name->len 4711da177e4SLinus Torvalds }; 4721da177e4SLinus Torvalds struct nfs3_linkres res = { 4731da177e4SLinus Torvalds .dir_attr = &dir_attr, 4741da177e4SLinus Torvalds .fattr = &fattr 4751da177e4SLinus Torvalds }; 476dead28daSChuck Lever struct rpc_message msg = { 477dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_LINK], 478dead28daSChuck Lever .rpc_argp = &arg, 479dead28daSChuck Lever .rpc_resp = &res, 480dead28daSChuck Lever }; 4811da177e4SLinus Torvalds int status; 4821da177e4SLinus Torvalds 4831da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 4840e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 4850e574af1STrond Myklebust nfs_fattr_init(&fattr); 486dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 487decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 488decf491fSTrond Myklebust nfs_post_op_update_inode(inode, &fattr); 4891da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 4901da177e4SLinus Torvalds return status; 4911da177e4SLinus Torvalds } 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds static int 49494a6d753SChuck Lever nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 49594a6d753SChuck Lever unsigned int len, struct iattr *sattr) 4961da177e4SLinus Torvalds { 4970b4aae7aSTrond Myklebust struct nfs3_createdata *data; 4980b4aae7aSTrond Myklebust int status = -ENOMEM; 4991da177e4SLinus Torvalds 50094a6d753SChuck Lever if (len > NFS3_MAXPATHLEN) 5011da177e4SLinus Torvalds return -ENAMETOOLONG; 5024f390c15SChuck Lever 50394a6d753SChuck Lever dprintk("NFS call symlink %s\n", dentry->d_name.name); 50494a6d753SChuck Lever 5050b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5060b4aae7aSTrond Myklebust if (data == NULL) 5074f390c15SChuck Lever goto out; 5080b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK]; 5090b4aae7aSTrond Myklebust data->arg.symlink.fromfh = NFS_FH(dir); 5100b4aae7aSTrond Myklebust data->arg.symlink.fromname = dentry->d_name.name; 5110b4aae7aSTrond Myklebust data->arg.symlink.fromlen = dentry->d_name.len; 5120b4aae7aSTrond Myklebust data->arg.symlink.pages = &page; 5130b4aae7aSTrond Myklebust data->arg.symlink.pathlen = len; 5140b4aae7aSTrond Myklebust data->arg.symlink.sattr = sattr; 5150b4aae7aSTrond Myklebust 5160b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 5170b4aae7aSTrond Myklebust 5180b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5194f390c15SChuck Lever out: 5201da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5211da177e4SLinus Torvalds return status; 5221da177e4SLinus Torvalds } 5231da177e4SLinus Torvalds 5241da177e4SLinus Torvalds static int 5251da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5261da177e4SLinus Torvalds { 5270b4aae7aSTrond Myklebust struct nfs3_createdata *data; 528055ffbeaSAndreas Gruenbacher int mode = sattr->ia_mode; 5290b4aae7aSTrond Myklebust int status = -ENOMEM; 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds dprintk("NFS call mkdir %s\n", dentry->d_name.name); 532055ffbeaSAndreas Gruenbacher 533ce3b0f8dSAl Viro sattr->ia_mode &= ~current_umask(); 534055ffbeaSAndreas Gruenbacher 5350b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 5360b4aae7aSTrond Myklebust if (data == NULL) 5370b4aae7aSTrond Myklebust goto out; 5380b4aae7aSTrond Myklebust 5390b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR]; 5400b4aae7aSTrond Myklebust data->arg.mkdir.fh = NFS_FH(dir); 5410b4aae7aSTrond Myklebust data->arg.mkdir.name = dentry->d_name.name; 5420b4aae7aSTrond Myklebust data->arg.mkdir.len = dentry->d_name.len; 5430b4aae7aSTrond Myklebust data->arg.mkdir.sattr = sattr; 5440b4aae7aSTrond Myklebust 5450b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 546055ffbeaSAndreas Gruenbacher if (status != 0) 547055ffbeaSAndreas Gruenbacher goto out; 5480b4aae7aSTrond Myklebust 549055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 550055ffbeaSAndreas Gruenbacher out: 5510b4aae7aSTrond Myklebust nfs3_free_createdata(data); 5521da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5531da177e4SLinus Torvalds return status; 5541da177e4SLinus Torvalds } 5551da177e4SLinus Torvalds 5561da177e4SLinus Torvalds static int 5571da177e4SLinus Torvalds nfs3_proc_rmdir(struct inode *dir, struct qstr *name) 5581da177e4SLinus Torvalds { 5591da177e4SLinus Torvalds struct nfs_fattr dir_attr; 5601da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5611da177e4SLinus Torvalds .fh = NFS_FH(dir), 5621da177e4SLinus Torvalds .name = name->name, 5631da177e4SLinus Torvalds .len = name->len 5641da177e4SLinus Torvalds }; 565dead28daSChuck Lever struct rpc_message msg = { 566dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR], 567dead28daSChuck Lever .rpc_argp = &arg, 568dead28daSChuck Lever .rpc_resp = &dir_attr, 569dead28daSChuck Lever }; 5701da177e4SLinus Torvalds int status; 5711da177e4SLinus Torvalds 5721da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 5730e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 574dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 575decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 5761da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 5771da177e4SLinus Torvalds return status; 5781da177e4SLinus Torvalds } 5791da177e4SLinus Torvalds 5801da177e4SLinus Torvalds /* 5811da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 5821da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 5831da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 5841da177e4SLinus Torvalds * sure the reply is syntactically correct. 5851da177e4SLinus Torvalds * 5861da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 5871da177e4SLinus Torvalds * readdirplus. 5881da177e4SLinus Torvalds */ 5891da177e4SLinus Torvalds static int 5901da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 5911da177e4SLinus Torvalds u64 cookie, struct page *page, unsigned int count, int plus) 5921da177e4SLinus Torvalds { 5931da177e4SLinus Torvalds struct inode *dir = dentry->d_inode; 5941da177e4SLinus Torvalds struct nfs_fattr dir_attr; 595bc4785cdSAl Viro __be32 *verf = NFS_COOKIEVERF(dir); 5961da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 5971da177e4SLinus Torvalds .fh = NFS_FH(dir), 5981da177e4SLinus Torvalds .cookie = cookie, 5991da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6001da177e4SLinus Torvalds .plus = plus, 6011da177e4SLinus Torvalds .count = count, 6021da177e4SLinus Torvalds .pages = &page 6031da177e4SLinus Torvalds }; 6041da177e4SLinus Torvalds struct nfs3_readdirres res = { 6051da177e4SLinus Torvalds .dir_attr = &dir_attr, 6061da177e4SLinus Torvalds .verf = verf, 6071da177e4SLinus Torvalds .plus = plus 6081da177e4SLinus Torvalds }; 6091da177e4SLinus Torvalds struct rpc_message msg = { 6101da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6111da177e4SLinus Torvalds .rpc_argp = &arg, 6121da177e4SLinus Torvalds .rpc_resp = &res, 6131da177e4SLinus Torvalds .rpc_cred = cred 6141da177e4SLinus Torvalds }; 6151da177e4SLinus Torvalds int status; 6161da177e4SLinus Torvalds 6171da177e4SLinus Torvalds if (plus) 6181da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6191da177e4SLinus Torvalds 6201da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6211da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6221da177e4SLinus Torvalds 6230e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 6241da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 625c4812998STrond Myklebust 626c4812998STrond Myklebust nfs_invalidate_atime(dir); 627c4812998STrond Myklebust 6281da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 6291da177e4SLinus Torvalds dprintk("NFS reply readdir: %d\n", status); 6301da177e4SLinus Torvalds return status; 6311da177e4SLinus Torvalds } 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds static int 6341da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6351da177e4SLinus Torvalds dev_t rdev) 6361da177e4SLinus Torvalds { 6370b4aae7aSTrond Myklebust struct nfs3_createdata *data; 638055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 6390b4aae7aSTrond Myklebust int status = -ENOMEM; 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, 6421da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 643055ffbeaSAndreas Gruenbacher 644ce3b0f8dSAl Viro sattr->ia_mode &= ~current_umask(); 645055ffbeaSAndreas Gruenbacher 6460b4aae7aSTrond Myklebust data = nfs3_alloc_createdata(); 6470b4aae7aSTrond Myklebust if (data == NULL) 648055ffbeaSAndreas Gruenbacher goto out; 6490b4aae7aSTrond Myklebust 6500b4aae7aSTrond Myklebust data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD]; 6510b4aae7aSTrond Myklebust data->arg.mknod.fh = NFS_FH(dir); 6520b4aae7aSTrond Myklebust data->arg.mknod.name = dentry->d_name.name; 6530b4aae7aSTrond Myklebust data->arg.mknod.len = dentry->d_name.len; 6540b4aae7aSTrond Myklebust data->arg.mknod.sattr = sattr; 6550b4aae7aSTrond Myklebust data->arg.mknod.rdev = rdev; 6560b4aae7aSTrond Myklebust 6570b4aae7aSTrond Myklebust switch (sattr->ia_mode & S_IFMT) { 6580b4aae7aSTrond Myklebust case S_IFBLK: 6590b4aae7aSTrond Myklebust data->arg.mknod.type = NF3BLK; 6600b4aae7aSTrond Myklebust break; 6610b4aae7aSTrond Myklebust case S_IFCHR: 6620b4aae7aSTrond Myklebust data->arg.mknod.type = NF3CHR; 6630b4aae7aSTrond Myklebust break; 6640b4aae7aSTrond Myklebust case S_IFIFO: 6650b4aae7aSTrond Myklebust data->arg.mknod.type = NF3FIFO; 6660b4aae7aSTrond Myklebust break; 6670b4aae7aSTrond Myklebust case S_IFSOCK: 6680b4aae7aSTrond Myklebust data->arg.mknod.type = NF3SOCK; 6690b4aae7aSTrond Myklebust break; 6700b4aae7aSTrond Myklebust default: 6710b4aae7aSTrond Myklebust status = -EINVAL; 6720b4aae7aSTrond Myklebust goto out; 6730b4aae7aSTrond Myklebust } 6740b4aae7aSTrond Myklebust 6750b4aae7aSTrond Myklebust status = nfs3_do_create(dir, dentry, data); 676055ffbeaSAndreas Gruenbacher if (status != 0) 677055ffbeaSAndreas Gruenbacher goto out; 678055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 679055ffbeaSAndreas Gruenbacher out: 6800b4aae7aSTrond Myklebust nfs3_free_createdata(data); 6811da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 6821da177e4SLinus Torvalds return status; 6831da177e4SLinus Torvalds } 6841da177e4SLinus Torvalds 6851da177e4SLinus Torvalds static int 6861da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 6871da177e4SLinus Torvalds struct nfs_fsstat *stat) 6881da177e4SLinus Torvalds { 689dead28daSChuck Lever struct rpc_message msg = { 690dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT], 691dead28daSChuck Lever .rpc_argp = fhandle, 692dead28daSChuck Lever .rpc_resp = stat, 693dead28daSChuck Lever }; 6941da177e4SLinus Torvalds int status; 6951da177e4SLinus Torvalds 6961da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 6970e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 698dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 6991da177e4SLinus Torvalds dprintk("NFS reply statfs: %d\n", status); 7001da177e4SLinus Torvalds return status; 7011da177e4SLinus Torvalds } 7021da177e4SLinus Torvalds 7031da177e4SLinus Torvalds static int 70437ca8f5cSEG Keizer do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle, 7051da177e4SLinus Torvalds struct nfs_fsinfo *info) 7061da177e4SLinus Torvalds { 707dead28daSChuck Lever struct rpc_message msg = { 708dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO], 709dead28daSChuck Lever .rpc_argp = fhandle, 710dead28daSChuck Lever .rpc_resp = info, 711dead28daSChuck Lever }; 7121da177e4SLinus Torvalds int status; 7131da177e4SLinus Torvalds 7141da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7150e574af1STrond Myklebust nfs_fattr_init(info->fattr); 71637ca8f5cSEG Keizer status = rpc_call_sync(client, &msg, 0); 7171da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7181da177e4SLinus Torvalds return status; 7191da177e4SLinus Torvalds } 7201da177e4SLinus Torvalds 72137ca8f5cSEG Keizer /* 72237ca8f5cSEG Keizer * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via 72337ca8f5cSEG Keizer * nfs_create_server 72437ca8f5cSEG Keizer */ 72537ca8f5cSEG Keizer static int 72637ca8f5cSEG Keizer nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 72737ca8f5cSEG Keizer struct nfs_fsinfo *info) 72837ca8f5cSEG Keizer { 72937ca8f5cSEG Keizer int status; 73037ca8f5cSEG Keizer 73137ca8f5cSEG Keizer status = do_proc_fsinfo(server->client, fhandle, info); 73237ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 73337ca8f5cSEG Keizer status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info); 73437ca8f5cSEG Keizer return status; 73537ca8f5cSEG Keizer } 73637ca8f5cSEG Keizer 7371da177e4SLinus Torvalds static int 7381da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7391da177e4SLinus Torvalds struct nfs_pathconf *info) 7401da177e4SLinus Torvalds { 741dead28daSChuck Lever struct rpc_message msg = { 742dead28daSChuck Lever .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF], 743dead28daSChuck Lever .rpc_argp = fhandle, 744dead28daSChuck Lever .rpc_resp = info, 745dead28daSChuck Lever }; 7461da177e4SLinus Torvalds int status; 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7490e574af1STrond Myklebust nfs_fattr_init(info->fattr); 750dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 7511da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7521da177e4SLinus Torvalds return status; 7531da177e4SLinus Torvalds } 7541da177e4SLinus Torvalds 755ec06c096STrond Myklebust static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data) 7561da177e4SLinus Torvalds { 757006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 758ec06c096STrond Myklebust return -EAGAIN; 7598850df99STrond Myklebust 7608850df99STrond Myklebust nfs_invalidate_atime(data->inode); 7611da177e4SLinus Torvalds nfs_refresh_inode(data->inode, &data->fattr); 762ec06c096STrond Myklebust return 0; 7631da177e4SLinus Torvalds } 7641da177e4SLinus Torvalds 765bdc7f021STrond Myklebust static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg) 7661da177e4SLinus Torvalds { 767bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ]; 7681da177e4SLinus Torvalds } 7691da177e4SLinus Torvalds 770788e7a89STrond Myklebust static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data) 7711da177e4SLinus Torvalds { 772006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 773788e7a89STrond Myklebust return -EAGAIN; 7741da177e4SLinus Torvalds if (task->tk_status >= 0) 77570ca8852STrond Myklebust nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr); 776788e7a89STrond Myklebust return 0; 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 779bdc7f021STrond Myklebust static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg) 7801da177e4SLinus Torvalds { 781bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE]; 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds 784788e7a89STrond Myklebust static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data) 7851da177e4SLinus Torvalds { 786006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 787788e7a89STrond Myklebust return -EAGAIN; 7889e08a3c5STrond Myklebust nfs_refresh_inode(data->inode, data->res.fattr); 789788e7a89STrond Myklebust return 0; 7901da177e4SLinus Torvalds } 7911da177e4SLinus Torvalds 792bdc7f021STrond Myklebust static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg) 7931da177e4SLinus Torvalds { 794bdc7f021STrond Myklebust msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT]; 7951da177e4SLinus Torvalds } 7961da177e4SLinus Torvalds 7971da177e4SLinus Torvalds static int 7981da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 7991da177e4SLinus Torvalds { 8001093a60eSChuck Lever struct inode *inode = filp->f_path.dentry->d_inode; 8011093a60eSChuck Lever 8021093a60eSChuck Lever return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl); 8031da177e4SLinus Torvalds } 8041da177e4SLinus Torvalds 805509de811SDavid Howells const struct nfs_rpc_ops nfs_v3_clientops = { 8061da177e4SLinus Torvalds .version = 3, /* protocol version */ 8071da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 808b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 809b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 8101da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 8111da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 8121da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 8131da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 8141da177e4SLinus Torvalds .access = nfs3_proc_access, 8151da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 8161da177e4SLinus Torvalds .create = nfs3_proc_create, 8171da177e4SLinus Torvalds .remove = nfs3_proc_remove, 8181da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 8191da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 8201da177e4SLinus Torvalds .rename = nfs3_proc_rename, 8211da177e4SLinus Torvalds .link = nfs3_proc_link, 8221da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 8231da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 8241da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 8251da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 8261da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 8271da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 8281da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 8291da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 8301da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 8311da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 832ec06c096STrond Myklebust .read_done = nfs3_read_done, 8331da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 834788e7a89STrond Myklebust .write_done = nfs3_write_done, 8351da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 836788e7a89STrond Myklebust .commit_done = nfs3_commit_done, 8371da177e4SLinus Torvalds .lock = nfs3_proc_lock, 8385c6a9f7dSAndreas Gruenbacher .clear_acl_cache = nfs3_forget_cached_acls, 8397fe5c398STrond Myklebust .close_context = nfs_close_context, 8401da177e4SLinus Torvalds }; 841