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/utsname.h> 111da177e4SLinus Torvalds #include <linux/errno.h> 121da177e4SLinus Torvalds #include <linux/string.h> 131da177e4SLinus Torvalds #include <linux/sunrpc/clnt.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> 191da177e4SLinus Torvalds #include <linux/smp_lock.h> 20b7fa0554SAndreas Gruenbacher #include <linux/nfs_mount.h> 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds extern struct rpc_procinfo nfs3_procedures[]; 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds /* A wrapper to handle the EJUKEBOX error message */ 271da177e4SLinus Torvalds static int 281da177e4SLinus Torvalds nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) 291da177e4SLinus Torvalds { 301da177e4SLinus Torvalds sigset_t oldset; 311da177e4SLinus Torvalds int res; 321da177e4SLinus Torvalds rpc_clnt_sigmask(clnt, &oldset); 331da177e4SLinus Torvalds do { 341da177e4SLinus Torvalds res = rpc_call_sync(clnt, msg, flags); 351da177e4SLinus Torvalds if (res != -EJUKEBOX) 361da177e4SLinus Torvalds break; 371da177e4SLinus Torvalds set_current_state(TASK_INTERRUPTIBLE); 381da177e4SLinus Torvalds schedule_timeout(NFS_JUKEBOX_RETRY_TIME); 391da177e4SLinus Torvalds res = -ERESTARTSYS; 401da177e4SLinus Torvalds } while (!signalled()); 411da177e4SLinus Torvalds rpc_clnt_sigunmask(clnt, &oldset); 421da177e4SLinus Torvalds return res; 431da177e4SLinus Torvalds } 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds static inline int 461da177e4SLinus Torvalds nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags) 471da177e4SLinus Torvalds { 481da177e4SLinus Torvalds struct rpc_message msg = { 49b7fa0554SAndreas Gruenbacher .rpc_proc = &clnt->cl_procinfo[proc], 501da177e4SLinus Torvalds .rpc_argp = argp, 511da177e4SLinus Torvalds .rpc_resp = resp, 521da177e4SLinus Torvalds }; 531da177e4SLinus Torvalds return nfs3_rpc_wrapper(clnt, &msg, flags); 541da177e4SLinus Torvalds } 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds #define rpc_call(clnt, proc, argp, resp, flags) \ 571da177e4SLinus Torvalds nfs3_rpc_call_wrapper(clnt, proc, argp, resp, flags) 581da177e4SLinus Torvalds #define rpc_call_sync(clnt, msg, flags) \ 591da177e4SLinus Torvalds nfs3_rpc_wrapper(clnt, msg, flags) 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds static int 621da177e4SLinus Torvalds nfs3_async_handle_jukebox(struct rpc_task *task) 631da177e4SLinus Torvalds { 641da177e4SLinus Torvalds if (task->tk_status != -EJUKEBOX) 651da177e4SLinus Torvalds return 0; 661da177e4SLinus Torvalds task->tk_status = 0; 671da177e4SLinus Torvalds rpc_restart_call(task); 681da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 691da177e4SLinus Torvalds return 1; 701da177e4SLinus Torvalds } 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds /* 731da177e4SLinus Torvalds * Bare-bones access to getattr: this is for nfs_read_super. 741da177e4SLinus Torvalds */ 751da177e4SLinus Torvalds static int 761da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 771da177e4SLinus Torvalds struct nfs_fsinfo *info) 781da177e4SLinus Torvalds { 791da177e4SLinus Torvalds int status; 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds dprintk("%s: call fsinfo\n", __FUNCTION__); 821da177e4SLinus Torvalds info->fattr->valid = 0; 831da177e4SLinus Torvalds status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0); 841da177e4SLinus Torvalds dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); 851da177e4SLinus Torvalds if (!(info->fattr->valid & NFS_ATTR_FATTR)) { 861da177e4SLinus Torvalds status = rpc_call(server->client_sys, NFS3PROC_GETATTR, fhandle, info->fattr, 0); 871da177e4SLinus Torvalds dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); 881da177e4SLinus Torvalds } 891da177e4SLinus Torvalds return status; 901da177e4SLinus Torvalds } 911da177e4SLinus Torvalds 921da177e4SLinus Torvalds /* 931da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 941da177e4SLinus Torvalds */ 951da177e4SLinus Torvalds static int 961da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 971da177e4SLinus Torvalds struct nfs_fattr *fattr) 981da177e4SLinus Torvalds { 991da177e4SLinus Torvalds int status; 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1021da177e4SLinus Torvalds fattr->valid = 0; 1031da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_GETATTR, 1041da177e4SLinus Torvalds fhandle, fattr, 0); 1051da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1061da177e4SLinus Torvalds return status; 1071da177e4SLinus Torvalds } 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds static int 1101da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1111da177e4SLinus Torvalds struct iattr *sattr) 1121da177e4SLinus Torvalds { 1131da177e4SLinus Torvalds struct inode *inode = dentry->d_inode; 1141da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1151da177e4SLinus Torvalds .fh = NFS_FH(inode), 1161da177e4SLinus Torvalds .sattr = sattr, 1171da177e4SLinus Torvalds }; 1181da177e4SLinus Torvalds int status; 1191da177e4SLinus Torvalds 1201da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 1211da177e4SLinus Torvalds fattr->valid = 0; 1221da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0); 1231da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1241da177e4SLinus Torvalds return status; 1251da177e4SLinus Torvalds } 1261da177e4SLinus Torvalds 1271da177e4SLinus Torvalds static int 1281da177e4SLinus Torvalds nfs3_proc_lookup(struct inode *dir, struct qstr *name, 1291da177e4SLinus Torvalds struct nfs_fh *fhandle, struct nfs_fattr *fattr) 1301da177e4SLinus Torvalds { 1311da177e4SLinus Torvalds struct nfs_fattr dir_attr; 1321da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1331da177e4SLinus Torvalds .fh = NFS_FH(dir), 1341da177e4SLinus Torvalds .name = name->name, 1351da177e4SLinus Torvalds .len = name->len 1361da177e4SLinus Torvalds }; 1371da177e4SLinus Torvalds struct nfs3_diropres res = { 1381da177e4SLinus Torvalds .dir_attr = &dir_attr, 1391da177e4SLinus Torvalds .fh = fhandle, 1401da177e4SLinus Torvalds .fattr = fattr 1411da177e4SLinus Torvalds }; 1421da177e4SLinus Torvalds int status; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 1451da177e4SLinus Torvalds dir_attr.valid = 0; 1461da177e4SLinus Torvalds fattr->valid = 0; 1471da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0); 1481da177e4SLinus Torvalds if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) 1491da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR, 1501da177e4SLinus Torvalds fhandle, fattr, 0); 1511da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1521da177e4SLinus Torvalds if (status >= 0) 1531da177e4SLinus Torvalds status = nfs_refresh_inode(dir, &dir_attr); 1541da177e4SLinus Torvalds return status; 1551da177e4SLinus Torvalds } 1561da177e4SLinus Torvalds 1571da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1581da177e4SLinus Torvalds { 1591da177e4SLinus Torvalds struct nfs_fattr fattr; 1601da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1611da177e4SLinus Torvalds .fh = NFS_FH(inode), 1621da177e4SLinus Torvalds }; 1631da177e4SLinus Torvalds struct nfs3_accessres res = { 1641da177e4SLinus Torvalds .fattr = &fattr, 1651da177e4SLinus Torvalds }; 1661da177e4SLinus Torvalds struct rpc_message msg = { 1671da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1681da177e4SLinus Torvalds .rpc_argp = &arg, 1691da177e4SLinus Torvalds .rpc_resp = &res, 1701da177e4SLinus Torvalds .rpc_cred = entry->cred 1711da177e4SLinus Torvalds }; 1721da177e4SLinus Torvalds int mode = entry->mask; 1731da177e4SLinus Torvalds int status; 1741da177e4SLinus Torvalds 1751da177e4SLinus Torvalds dprintk("NFS call access\n"); 1761da177e4SLinus Torvalds fattr.valid = 0; 1771da177e4SLinus Torvalds 1781da177e4SLinus Torvalds if (mode & MAY_READ) 1791da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_READ; 1801da177e4SLinus Torvalds if (S_ISDIR(inode->i_mode)) { 1811da177e4SLinus Torvalds if (mode & MAY_WRITE) 1821da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; 1831da177e4SLinus Torvalds if (mode & MAY_EXEC) 1841da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_LOOKUP; 1851da177e4SLinus Torvalds } else { 1861da177e4SLinus Torvalds if (mode & MAY_WRITE) 1871da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; 1881da177e4SLinus Torvalds if (mode & MAY_EXEC) 1891da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_EXECUTE; 1901da177e4SLinus Torvalds } 1911da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 1921da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 1931da177e4SLinus Torvalds if (status == 0) { 1941da177e4SLinus Torvalds entry->mask = 0; 1951da177e4SLinus Torvalds if (res.access & NFS3_ACCESS_READ) 1961da177e4SLinus Torvalds entry->mask |= MAY_READ; 1971da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) 1981da177e4SLinus Torvalds entry->mask |= MAY_WRITE; 1991da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) 2001da177e4SLinus Torvalds entry->mask |= MAY_EXEC; 2011da177e4SLinus Torvalds } 2021da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2031da177e4SLinus Torvalds return status; 2041da177e4SLinus Torvalds } 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2071da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2081da177e4SLinus Torvalds { 2091da177e4SLinus Torvalds struct nfs_fattr fattr; 2101da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2111da177e4SLinus Torvalds .fh = NFS_FH(inode), 2121da177e4SLinus Torvalds .pgbase = pgbase, 2131da177e4SLinus Torvalds .pglen = pglen, 2141da177e4SLinus Torvalds .pages = &page 2151da177e4SLinus Torvalds }; 2161da177e4SLinus Torvalds int status; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2191da177e4SLinus Torvalds fattr.valid = 0; 2201da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK, 2211da177e4SLinus Torvalds &args, &fattr, 0); 2221da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 2231da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2241da177e4SLinus Torvalds return status; 2251da177e4SLinus Torvalds } 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds static int nfs3_proc_read(struct nfs_read_data *rdata) 2281da177e4SLinus Torvalds { 2291da177e4SLinus Torvalds int flags = rdata->flags; 2301da177e4SLinus Torvalds struct inode * inode = rdata->inode; 2311da177e4SLinus Torvalds struct nfs_fattr * fattr = rdata->res.fattr; 2321da177e4SLinus Torvalds struct rpc_message msg = { 2331da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READ], 2341da177e4SLinus Torvalds .rpc_argp = &rdata->args, 2351da177e4SLinus Torvalds .rpc_resp = &rdata->res, 2361da177e4SLinus Torvalds .rpc_cred = rdata->cred, 2371da177e4SLinus Torvalds }; 2381da177e4SLinus Torvalds int status; 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds dprintk("NFS call read %d @ %Ld\n", rdata->args.count, 2411da177e4SLinus Torvalds (long long) rdata->args.offset); 2421da177e4SLinus Torvalds fattr->valid = 0; 2431da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags); 2441da177e4SLinus Torvalds if (status >= 0) 2451da177e4SLinus Torvalds nfs_refresh_inode(inode, fattr); 2461da177e4SLinus Torvalds dprintk("NFS reply read: %d\n", status); 2471da177e4SLinus Torvalds return status; 2481da177e4SLinus Torvalds } 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds static int nfs3_proc_write(struct nfs_write_data *wdata) 2511da177e4SLinus Torvalds { 2521da177e4SLinus Torvalds int rpcflags = wdata->flags; 2531da177e4SLinus Torvalds struct inode * inode = wdata->inode; 2541da177e4SLinus Torvalds struct nfs_fattr * fattr = wdata->res.fattr; 2551da177e4SLinus Torvalds struct rpc_message msg = { 2561da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], 2571da177e4SLinus Torvalds .rpc_argp = &wdata->args, 2581da177e4SLinus Torvalds .rpc_resp = &wdata->res, 2591da177e4SLinus Torvalds .rpc_cred = wdata->cred, 2601da177e4SLinus Torvalds }; 2611da177e4SLinus Torvalds int status; 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds dprintk("NFS call write %d @ %Ld\n", wdata->args.count, 2641da177e4SLinus Torvalds (long long) wdata->args.offset); 2651da177e4SLinus Torvalds fattr->valid = 0; 2661da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags); 2671da177e4SLinus Torvalds if (status >= 0) 2681da177e4SLinus Torvalds nfs_refresh_inode(inode, fattr); 2691da177e4SLinus Torvalds dprintk("NFS reply write: %d\n", status); 2701da177e4SLinus Torvalds return status < 0? status : wdata->res.count; 2711da177e4SLinus Torvalds } 2721da177e4SLinus Torvalds 2731da177e4SLinus Torvalds static int nfs3_proc_commit(struct nfs_write_data *cdata) 2741da177e4SLinus Torvalds { 2751da177e4SLinus Torvalds struct inode * inode = cdata->inode; 2761da177e4SLinus Torvalds struct nfs_fattr * fattr = cdata->res.fattr; 2771da177e4SLinus Torvalds struct rpc_message msg = { 2781da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], 2791da177e4SLinus Torvalds .rpc_argp = &cdata->args, 2801da177e4SLinus Torvalds .rpc_resp = &cdata->res, 2811da177e4SLinus Torvalds .rpc_cred = cdata->cred, 2821da177e4SLinus Torvalds }; 2831da177e4SLinus Torvalds int status; 2841da177e4SLinus Torvalds 2851da177e4SLinus Torvalds dprintk("NFS call commit %d @ %Ld\n", cdata->args.count, 2861da177e4SLinus Torvalds (long long) cdata->args.offset); 2871da177e4SLinus Torvalds fattr->valid = 0; 2881da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2891da177e4SLinus Torvalds if (status >= 0) 2901da177e4SLinus Torvalds nfs_refresh_inode(inode, fattr); 2911da177e4SLinus Torvalds dprintk("NFS reply commit: %d\n", status); 2921da177e4SLinus Torvalds return status; 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds 2951da177e4SLinus Torvalds /* 2961da177e4SLinus Torvalds * Create a regular file. 2971da177e4SLinus Torvalds * For now, we don't implement O_EXCL. 2981da177e4SLinus Torvalds */ 2991da177e4SLinus Torvalds static int 3001da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 3011da177e4SLinus Torvalds int flags) 3021da177e4SLinus Torvalds { 3031da177e4SLinus Torvalds struct nfs_fh fhandle; 3041da177e4SLinus Torvalds struct nfs_fattr fattr; 3051da177e4SLinus Torvalds struct nfs_fattr dir_attr; 3061da177e4SLinus Torvalds struct nfs3_createargs arg = { 3071da177e4SLinus Torvalds .fh = NFS_FH(dir), 3081da177e4SLinus Torvalds .name = dentry->d_name.name, 3091da177e4SLinus Torvalds .len = dentry->d_name.len, 3101da177e4SLinus Torvalds .sattr = sattr, 3111da177e4SLinus Torvalds }; 3121da177e4SLinus Torvalds struct nfs3_diropres res = { 3131da177e4SLinus Torvalds .dir_attr = &dir_attr, 3141da177e4SLinus Torvalds .fh = &fhandle, 3151da177e4SLinus Torvalds .fattr = &fattr 3161da177e4SLinus Torvalds }; 317055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 3181da177e4SLinus Torvalds int status; 3191da177e4SLinus Torvalds 3201da177e4SLinus Torvalds dprintk("NFS call create %s\n", dentry->d_name.name); 3211da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_UNCHECKED; 3221da177e4SLinus Torvalds if (flags & O_EXCL) { 3231da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_EXCLUSIVE; 3241da177e4SLinus Torvalds arg.verifier[0] = jiffies; 3251da177e4SLinus Torvalds arg.verifier[1] = current->pid; 3261da177e4SLinus Torvalds } 3271da177e4SLinus Torvalds 328055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 329055ffbeaSAndreas Gruenbacher 3301da177e4SLinus Torvalds again: 3311da177e4SLinus Torvalds dir_attr.valid = 0; 3321da177e4SLinus Torvalds fattr.valid = 0; 3331da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0); 3341da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds /* If the server doesn't support the exclusive creation semantics, 3371da177e4SLinus Torvalds * try again with simple 'guarded' mode. */ 3381da177e4SLinus Torvalds if (status == NFSERR_NOTSUPP) { 3391da177e4SLinus Torvalds switch (arg.createmode) { 3401da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3411da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_GUARDED; 3421da177e4SLinus Torvalds break; 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3451da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_UNCHECKED; 3461da177e4SLinus Torvalds break; 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3491da177e4SLinus Torvalds goto out; 3501da177e4SLinus Torvalds } 3511da177e4SLinus Torvalds goto again; 3521da177e4SLinus Torvalds } 3531da177e4SLinus Torvalds 3541da177e4SLinus Torvalds if (status == 0) 3551da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fhandle, &fattr); 3561da177e4SLinus Torvalds if (status != 0) 3571da177e4SLinus Torvalds goto out; 3581da177e4SLinus Torvalds 3591da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3601da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3611da177e4SLinus Torvalds if (arg.createmode == NFS3_CREATE_EXCLUSIVE) { 3621da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3651da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3661da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3671da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3681da177e4SLinus Torvalds 3691da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3701da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3711da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3721da177e4SLinus Torvalds status = nfs3_proc_setattr(dentry, &fattr, sattr); 3731da177e4SLinus Torvalds nfs_refresh_inode(dentry->d_inode, &fattr); 3741da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 3751da177e4SLinus Torvalds } 376055ffbeaSAndreas Gruenbacher if (status != 0) 377055ffbeaSAndreas Gruenbacher goto out; 378055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 3791da177e4SLinus Torvalds out: 3801da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3811da177e4SLinus Torvalds return status; 3821da177e4SLinus Torvalds } 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds static int 3851da177e4SLinus Torvalds nfs3_proc_remove(struct inode *dir, struct qstr *name) 3861da177e4SLinus Torvalds { 3871da177e4SLinus Torvalds struct nfs_fattr dir_attr; 3881da177e4SLinus Torvalds struct nfs3_diropargs arg = { 3891da177e4SLinus Torvalds .fh = NFS_FH(dir), 3901da177e4SLinus Torvalds .name = name->name, 3911da177e4SLinus Torvalds .len = name->len 3921da177e4SLinus Torvalds }; 3931da177e4SLinus Torvalds struct rpc_message msg = { 3941da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 3951da177e4SLinus Torvalds .rpc_argp = &arg, 3961da177e4SLinus Torvalds .rpc_resp = &dir_attr, 3971da177e4SLinus Torvalds }; 3981da177e4SLinus Torvalds int status; 3991da177e4SLinus Torvalds 4001da177e4SLinus Torvalds dprintk("NFS call remove %s\n", name->name); 4011da177e4SLinus Torvalds dir_attr.valid = 0; 4021da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 4031da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 4041da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4051da177e4SLinus Torvalds return status; 4061da177e4SLinus Torvalds } 4071da177e4SLinus Torvalds 4081da177e4SLinus Torvalds static int 4091da177e4SLinus Torvalds nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name) 4101da177e4SLinus Torvalds { 4111da177e4SLinus Torvalds struct unlinkxdr { 4121da177e4SLinus Torvalds struct nfs3_diropargs arg; 4131da177e4SLinus Torvalds struct nfs_fattr res; 4141da177e4SLinus Torvalds } *ptr; 4151da177e4SLinus Torvalds 4161da177e4SLinus Torvalds ptr = (struct unlinkxdr *)kmalloc(sizeof(*ptr), GFP_KERNEL); 4171da177e4SLinus Torvalds if (!ptr) 4181da177e4SLinus Torvalds return -ENOMEM; 4191da177e4SLinus Torvalds ptr->arg.fh = NFS_FH(dir->d_inode); 4201da177e4SLinus Torvalds ptr->arg.name = name->name; 4211da177e4SLinus Torvalds ptr->arg.len = name->len; 4221da177e4SLinus Torvalds ptr->res.valid = 0; 4231da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4241da177e4SLinus Torvalds msg->rpc_argp = &ptr->arg; 4251da177e4SLinus Torvalds msg->rpc_resp = &ptr->res; 4261da177e4SLinus Torvalds return 0; 4271da177e4SLinus Torvalds } 4281da177e4SLinus Torvalds 4291da177e4SLinus Torvalds static int 4301da177e4SLinus Torvalds nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task) 4311da177e4SLinus Torvalds { 4321da177e4SLinus Torvalds struct rpc_message *msg = &task->tk_msg; 4331da177e4SLinus Torvalds struct nfs_fattr *dir_attr; 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds if (nfs3_async_handle_jukebox(task)) 4361da177e4SLinus Torvalds return 1; 4371da177e4SLinus Torvalds if (msg->rpc_argp) { 4381da177e4SLinus Torvalds dir_attr = (struct nfs_fattr*)msg->rpc_resp; 4391da177e4SLinus Torvalds nfs_refresh_inode(dir->d_inode, dir_attr); 4401da177e4SLinus Torvalds kfree(msg->rpc_argp); 4411da177e4SLinus Torvalds } 4421da177e4SLinus Torvalds return 0; 4431da177e4SLinus Torvalds } 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds static int 4461da177e4SLinus Torvalds nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, 4471da177e4SLinus Torvalds struct inode *new_dir, struct qstr *new_name) 4481da177e4SLinus Torvalds { 4491da177e4SLinus Torvalds struct nfs_fattr old_dir_attr, new_dir_attr; 4501da177e4SLinus Torvalds struct nfs3_renameargs arg = { 4511da177e4SLinus Torvalds .fromfh = NFS_FH(old_dir), 4521da177e4SLinus Torvalds .fromname = old_name->name, 4531da177e4SLinus Torvalds .fromlen = old_name->len, 4541da177e4SLinus Torvalds .tofh = NFS_FH(new_dir), 4551da177e4SLinus Torvalds .toname = new_name->name, 4561da177e4SLinus Torvalds .tolen = new_name->len 4571da177e4SLinus Torvalds }; 4581da177e4SLinus Torvalds struct nfs3_renameres res = { 4591da177e4SLinus Torvalds .fromattr = &old_dir_attr, 4601da177e4SLinus Torvalds .toattr = &new_dir_attr 4611da177e4SLinus Torvalds }; 4621da177e4SLinus Torvalds int status; 4631da177e4SLinus Torvalds 4641da177e4SLinus Torvalds dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); 4651da177e4SLinus Torvalds old_dir_attr.valid = 0; 4661da177e4SLinus Torvalds new_dir_attr.valid = 0; 4671da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0); 4681da177e4SLinus Torvalds nfs_refresh_inode(old_dir, &old_dir_attr); 4691da177e4SLinus Torvalds nfs_refresh_inode(new_dir, &new_dir_attr); 4701da177e4SLinus Torvalds dprintk("NFS reply rename: %d\n", status); 4711da177e4SLinus Torvalds return status; 4721da177e4SLinus Torvalds } 4731da177e4SLinus Torvalds 4741da177e4SLinus Torvalds static int 4751da177e4SLinus Torvalds nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) 4761da177e4SLinus Torvalds { 4771da177e4SLinus Torvalds struct nfs_fattr dir_attr, fattr; 4781da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4791da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4801da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4811da177e4SLinus Torvalds .toname = name->name, 4821da177e4SLinus Torvalds .tolen = name->len 4831da177e4SLinus Torvalds }; 4841da177e4SLinus Torvalds struct nfs3_linkres res = { 4851da177e4SLinus Torvalds .dir_attr = &dir_attr, 4861da177e4SLinus Torvalds .fattr = &fattr 4871da177e4SLinus Torvalds }; 4881da177e4SLinus Torvalds int status; 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 4911da177e4SLinus Torvalds dir_attr.valid = 0; 4921da177e4SLinus Torvalds fattr.valid = 0; 4931da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0); 4941da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 4951da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 4961da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 4971da177e4SLinus Torvalds return status; 4981da177e4SLinus Torvalds } 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvalds static int 5011da177e4SLinus Torvalds nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path, 5021da177e4SLinus Torvalds struct iattr *sattr, struct nfs_fh *fhandle, 5031da177e4SLinus Torvalds struct nfs_fattr *fattr) 5041da177e4SLinus Torvalds { 5051da177e4SLinus Torvalds struct nfs_fattr dir_attr; 5061da177e4SLinus Torvalds struct nfs3_symlinkargs arg = { 5071da177e4SLinus Torvalds .fromfh = NFS_FH(dir), 5081da177e4SLinus Torvalds .fromname = name->name, 5091da177e4SLinus Torvalds .fromlen = name->len, 5101da177e4SLinus Torvalds .topath = path->name, 5111da177e4SLinus Torvalds .tolen = path->len, 5121da177e4SLinus Torvalds .sattr = sattr 5131da177e4SLinus Torvalds }; 5141da177e4SLinus Torvalds struct nfs3_diropres res = { 5151da177e4SLinus Torvalds .dir_attr = &dir_attr, 5161da177e4SLinus Torvalds .fh = fhandle, 5171da177e4SLinus Torvalds .fattr = fattr 5181da177e4SLinus Torvalds }; 5191da177e4SLinus Torvalds int status; 5201da177e4SLinus Torvalds 5211da177e4SLinus Torvalds if (path->len > NFS3_MAXPATHLEN) 5221da177e4SLinus Torvalds return -ENAMETOOLONG; 5231da177e4SLinus Torvalds dprintk("NFS call symlink %s -> %s\n", name->name, path->name); 5241da177e4SLinus Torvalds dir_attr.valid = 0; 5251da177e4SLinus Torvalds fattr->valid = 0; 5261da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0); 5271da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 5281da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5291da177e4SLinus Torvalds return status; 5301da177e4SLinus Torvalds } 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds static int 5331da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5341da177e4SLinus Torvalds { 5351da177e4SLinus Torvalds struct nfs_fh fhandle; 5361da177e4SLinus Torvalds struct nfs_fattr fattr, dir_attr; 5371da177e4SLinus Torvalds struct nfs3_mkdirargs arg = { 5381da177e4SLinus Torvalds .fh = NFS_FH(dir), 5391da177e4SLinus Torvalds .name = dentry->d_name.name, 5401da177e4SLinus Torvalds .len = dentry->d_name.len, 5411da177e4SLinus Torvalds .sattr = sattr 5421da177e4SLinus Torvalds }; 5431da177e4SLinus Torvalds struct nfs3_diropres res = { 5441da177e4SLinus Torvalds .dir_attr = &dir_attr, 5451da177e4SLinus Torvalds .fh = &fhandle, 5461da177e4SLinus Torvalds .fattr = &fattr 5471da177e4SLinus Torvalds }; 548055ffbeaSAndreas Gruenbacher int mode = sattr->ia_mode; 5491da177e4SLinus Torvalds int status; 5501da177e4SLinus Torvalds 5511da177e4SLinus Torvalds dprintk("NFS call mkdir %s\n", dentry->d_name.name); 5521da177e4SLinus Torvalds dir_attr.valid = 0; 5531da177e4SLinus Torvalds fattr.valid = 0; 554055ffbeaSAndreas Gruenbacher 555055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 556055ffbeaSAndreas Gruenbacher 5571da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0); 5581da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 559055ffbeaSAndreas Gruenbacher if (status != 0) 560055ffbeaSAndreas Gruenbacher goto out; 5611da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fhandle, &fattr); 562055ffbeaSAndreas Gruenbacher if (status != 0) 563055ffbeaSAndreas Gruenbacher goto out; 564055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 565055ffbeaSAndreas Gruenbacher out: 5661da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5671da177e4SLinus Torvalds return status; 5681da177e4SLinus Torvalds } 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds static int 5711da177e4SLinus Torvalds nfs3_proc_rmdir(struct inode *dir, struct qstr *name) 5721da177e4SLinus Torvalds { 5731da177e4SLinus Torvalds struct nfs_fattr dir_attr; 5741da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5751da177e4SLinus Torvalds .fh = NFS_FH(dir), 5761da177e4SLinus Torvalds .name = name->name, 5771da177e4SLinus Torvalds .len = name->len 5781da177e4SLinus Torvalds }; 5791da177e4SLinus Torvalds int status; 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 5821da177e4SLinus Torvalds dir_attr.valid = 0; 5831da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0); 5841da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 5851da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 5861da177e4SLinus Torvalds return status; 5871da177e4SLinus Torvalds } 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds /* 5901da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 5911da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 5921da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 5931da177e4SLinus Torvalds * sure the reply is syntactically correct. 5941da177e4SLinus Torvalds * 5951da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 5961da177e4SLinus Torvalds * readdirplus. 5971da177e4SLinus Torvalds */ 5981da177e4SLinus Torvalds static int 5991da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 6001da177e4SLinus Torvalds u64 cookie, struct page *page, unsigned int count, int plus) 6011da177e4SLinus Torvalds { 6021da177e4SLinus Torvalds struct inode *dir = dentry->d_inode; 6031da177e4SLinus Torvalds struct nfs_fattr dir_attr; 6041da177e4SLinus Torvalds u32 *verf = NFS_COOKIEVERF(dir); 6051da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6061da177e4SLinus Torvalds .fh = NFS_FH(dir), 6071da177e4SLinus Torvalds .cookie = cookie, 6081da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6091da177e4SLinus Torvalds .plus = plus, 6101da177e4SLinus Torvalds .count = count, 6111da177e4SLinus Torvalds .pages = &page 6121da177e4SLinus Torvalds }; 6131da177e4SLinus Torvalds struct nfs3_readdirres res = { 6141da177e4SLinus Torvalds .dir_attr = &dir_attr, 6151da177e4SLinus Torvalds .verf = verf, 6161da177e4SLinus Torvalds .plus = plus 6171da177e4SLinus Torvalds }; 6181da177e4SLinus Torvalds struct rpc_message msg = { 6191da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6201da177e4SLinus Torvalds .rpc_argp = &arg, 6211da177e4SLinus Torvalds .rpc_resp = &res, 6221da177e4SLinus Torvalds .rpc_cred = cred 6231da177e4SLinus Torvalds }; 6241da177e4SLinus Torvalds int status; 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds lock_kernel(); 6271da177e4SLinus Torvalds 6281da177e4SLinus Torvalds if (plus) 6291da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6301da177e4SLinus Torvalds 6311da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6321da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvalds dir_attr.valid = 0; 6351da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 6361da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 6371da177e4SLinus Torvalds dprintk("NFS reply readdir: %d\n", status); 6381da177e4SLinus Torvalds unlock_kernel(); 6391da177e4SLinus Torvalds return status; 6401da177e4SLinus Torvalds } 6411da177e4SLinus Torvalds 6421da177e4SLinus Torvalds static int 6431da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6441da177e4SLinus Torvalds dev_t rdev) 6451da177e4SLinus Torvalds { 6461da177e4SLinus Torvalds struct nfs_fh fh; 6471da177e4SLinus Torvalds struct nfs_fattr fattr, dir_attr; 6481da177e4SLinus Torvalds struct nfs3_mknodargs arg = { 6491da177e4SLinus Torvalds .fh = NFS_FH(dir), 6501da177e4SLinus Torvalds .name = dentry->d_name.name, 6511da177e4SLinus Torvalds .len = dentry->d_name.len, 6521da177e4SLinus Torvalds .sattr = sattr, 6531da177e4SLinus Torvalds .rdev = rdev 6541da177e4SLinus Torvalds }; 6551da177e4SLinus Torvalds struct nfs3_diropres res = { 6561da177e4SLinus Torvalds .dir_attr = &dir_attr, 6571da177e4SLinus Torvalds .fh = &fh, 6581da177e4SLinus Torvalds .fattr = &fattr 6591da177e4SLinus Torvalds }; 660055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 6611da177e4SLinus Torvalds int status; 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds switch (sattr->ia_mode & S_IFMT) { 6641da177e4SLinus Torvalds case S_IFBLK: arg.type = NF3BLK; break; 6651da177e4SLinus Torvalds case S_IFCHR: arg.type = NF3CHR; break; 6661da177e4SLinus Torvalds case S_IFIFO: arg.type = NF3FIFO; break; 6671da177e4SLinus Torvalds case S_IFSOCK: arg.type = NF3SOCK; break; 6681da177e4SLinus Torvalds default: return -EINVAL; 6691da177e4SLinus Torvalds } 6701da177e4SLinus Torvalds 6711da177e4SLinus Torvalds dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, 6721da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 673055ffbeaSAndreas Gruenbacher 674055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 675055ffbeaSAndreas Gruenbacher 6761da177e4SLinus Torvalds dir_attr.valid = 0; 6771da177e4SLinus Torvalds fattr.valid = 0; 6781da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0); 6791da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 680055ffbeaSAndreas Gruenbacher if (status != 0) 681055ffbeaSAndreas Gruenbacher goto out; 6821da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fh, &fattr); 683055ffbeaSAndreas Gruenbacher if (status != 0) 684055ffbeaSAndreas Gruenbacher goto out; 685055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 686055ffbeaSAndreas Gruenbacher out: 6871da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 6881da177e4SLinus Torvalds return status; 6891da177e4SLinus Torvalds } 6901da177e4SLinus Torvalds 6911da177e4SLinus Torvalds static int 6921da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 6931da177e4SLinus Torvalds struct nfs_fsstat *stat) 6941da177e4SLinus Torvalds { 6951da177e4SLinus Torvalds int status; 6961da177e4SLinus Torvalds 6971da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 6981da177e4SLinus Torvalds stat->fattr->valid = 0; 6991da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0); 7001da177e4SLinus Torvalds dprintk("NFS reply statfs: %d\n", status); 7011da177e4SLinus Torvalds return status; 7021da177e4SLinus Torvalds } 7031da177e4SLinus Torvalds 7041da177e4SLinus Torvalds static int 7051da177e4SLinus Torvalds nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 7061da177e4SLinus Torvalds struct nfs_fsinfo *info) 7071da177e4SLinus Torvalds { 7081da177e4SLinus Torvalds int status; 7091da177e4SLinus Torvalds 7101da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7111da177e4SLinus Torvalds info->fattr->valid = 0; 7121da177e4SLinus Torvalds status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0); 7131da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7141da177e4SLinus Torvalds return status; 7151da177e4SLinus Torvalds } 7161da177e4SLinus Torvalds 7171da177e4SLinus Torvalds static int 7181da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7191da177e4SLinus Torvalds struct nfs_pathconf *info) 7201da177e4SLinus Torvalds { 7211da177e4SLinus Torvalds int status; 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7241da177e4SLinus Torvalds info->fattr->valid = 0; 7251da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0); 7261da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7271da177e4SLinus Torvalds return status; 7281da177e4SLinus Torvalds } 7291da177e4SLinus Torvalds 7301da177e4SLinus Torvalds extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int); 7311da177e4SLinus Torvalds 7321da177e4SLinus Torvalds static void 7331da177e4SLinus Torvalds nfs3_read_done(struct rpc_task *task) 7341da177e4SLinus Torvalds { 7351da177e4SLinus Torvalds struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata; 7361da177e4SLinus Torvalds 7371da177e4SLinus Torvalds if (nfs3_async_handle_jukebox(task)) 7381da177e4SLinus Torvalds return; 7391da177e4SLinus Torvalds /* Call back common NFS readpage processing */ 7401da177e4SLinus Torvalds if (task->tk_status >= 0) 7411da177e4SLinus Torvalds nfs_refresh_inode(data->inode, &data->fattr); 7421da177e4SLinus Torvalds nfs_readpage_result(task); 7431da177e4SLinus Torvalds } 7441da177e4SLinus Torvalds 7451da177e4SLinus Torvalds static void 7461da177e4SLinus Torvalds nfs3_proc_read_setup(struct nfs_read_data *data) 7471da177e4SLinus Torvalds { 7481da177e4SLinus Torvalds struct rpc_task *task = &data->task; 7491da177e4SLinus Torvalds struct inode *inode = data->inode; 7501da177e4SLinus Torvalds int flags; 7511da177e4SLinus Torvalds struct rpc_message msg = { 7521da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READ], 7531da177e4SLinus Torvalds .rpc_argp = &data->args, 7541da177e4SLinus Torvalds .rpc_resp = &data->res, 7551da177e4SLinus Torvalds .rpc_cred = data->cred, 7561da177e4SLinus Torvalds }; 7571da177e4SLinus Torvalds 7581da177e4SLinus Torvalds /* N.B. Do we need to test? Never called for swapfile inode */ 7591da177e4SLinus Torvalds flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0); 7601da177e4SLinus Torvalds 7611da177e4SLinus Torvalds /* Finalize the task. */ 7621da177e4SLinus Torvalds rpc_init_task(task, NFS_CLIENT(inode), nfs3_read_done, flags); 7631da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 7641da177e4SLinus Torvalds } 7651da177e4SLinus Torvalds 7661da177e4SLinus Torvalds static void 7671da177e4SLinus Torvalds nfs3_write_done(struct rpc_task *task) 7681da177e4SLinus Torvalds { 7691da177e4SLinus Torvalds struct nfs_write_data *data; 7701da177e4SLinus Torvalds 7711da177e4SLinus Torvalds if (nfs3_async_handle_jukebox(task)) 7721da177e4SLinus Torvalds return; 7731da177e4SLinus Torvalds data = (struct nfs_write_data *)task->tk_calldata; 7741da177e4SLinus Torvalds if (task->tk_status >= 0) 7751da177e4SLinus Torvalds nfs_refresh_inode(data->inode, data->res.fattr); 7761da177e4SLinus Torvalds nfs_writeback_done(task); 7771da177e4SLinus Torvalds } 7781da177e4SLinus Torvalds 7791da177e4SLinus Torvalds static void 7801da177e4SLinus Torvalds nfs3_proc_write_setup(struct nfs_write_data *data, int how) 7811da177e4SLinus Torvalds { 7821da177e4SLinus Torvalds struct rpc_task *task = &data->task; 7831da177e4SLinus Torvalds struct inode *inode = data->inode; 7841da177e4SLinus Torvalds int stable; 7851da177e4SLinus Torvalds int flags; 7861da177e4SLinus Torvalds struct rpc_message msg = { 7871da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], 7881da177e4SLinus Torvalds .rpc_argp = &data->args, 7891da177e4SLinus Torvalds .rpc_resp = &data->res, 7901da177e4SLinus Torvalds .rpc_cred = data->cred, 7911da177e4SLinus Torvalds }; 7921da177e4SLinus Torvalds 7931da177e4SLinus Torvalds if (how & FLUSH_STABLE) { 7941da177e4SLinus Torvalds if (!NFS_I(inode)->ncommit) 7951da177e4SLinus Torvalds stable = NFS_FILE_SYNC; 7961da177e4SLinus Torvalds else 7971da177e4SLinus Torvalds stable = NFS_DATA_SYNC; 7981da177e4SLinus Torvalds } else 7991da177e4SLinus Torvalds stable = NFS_UNSTABLE; 8001da177e4SLinus Torvalds data->args.stable = stable; 8011da177e4SLinus Torvalds 8021da177e4SLinus Torvalds /* Set the initial flags for the task. */ 8031da177e4SLinus Torvalds flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC; 8041da177e4SLinus Torvalds 8051da177e4SLinus Torvalds /* Finalize the task. */ 8061da177e4SLinus Torvalds rpc_init_task(task, NFS_CLIENT(inode), nfs3_write_done, flags); 8071da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 8081da177e4SLinus Torvalds } 8091da177e4SLinus Torvalds 8101da177e4SLinus Torvalds static void 8111da177e4SLinus Torvalds nfs3_commit_done(struct rpc_task *task) 8121da177e4SLinus Torvalds { 8131da177e4SLinus Torvalds struct nfs_write_data *data; 8141da177e4SLinus Torvalds 8151da177e4SLinus Torvalds if (nfs3_async_handle_jukebox(task)) 8161da177e4SLinus Torvalds return; 8171da177e4SLinus Torvalds data = (struct nfs_write_data *)task->tk_calldata; 8181da177e4SLinus Torvalds if (task->tk_status >= 0) 8191da177e4SLinus Torvalds nfs_refresh_inode(data->inode, data->res.fattr); 8201da177e4SLinus Torvalds nfs_commit_done(task); 8211da177e4SLinus Torvalds } 8221da177e4SLinus Torvalds 8231da177e4SLinus Torvalds static void 8241da177e4SLinus Torvalds nfs3_proc_commit_setup(struct nfs_write_data *data, int how) 8251da177e4SLinus Torvalds { 8261da177e4SLinus Torvalds struct rpc_task *task = &data->task; 8271da177e4SLinus Torvalds struct inode *inode = data->inode; 8281da177e4SLinus Torvalds int flags; 8291da177e4SLinus Torvalds struct rpc_message msg = { 8301da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], 8311da177e4SLinus Torvalds .rpc_argp = &data->args, 8321da177e4SLinus Torvalds .rpc_resp = &data->res, 8331da177e4SLinus Torvalds .rpc_cred = data->cred, 8341da177e4SLinus Torvalds }; 8351da177e4SLinus Torvalds 8361da177e4SLinus Torvalds /* Set the initial flags for the task. */ 8371da177e4SLinus Torvalds flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC; 8381da177e4SLinus Torvalds 8391da177e4SLinus Torvalds /* Finalize the task. */ 8401da177e4SLinus Torvalds rpc_init_task(task, NFS_CLIENT(inode), nfs3_commit_done, flags); 8411da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 8421da177e4SLinus Torvalds } 8431da177e4SLinus Torvalds 8441da177e4SLinus Torvalds static int 8451da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 8461da177e4SLinus Torvalds { 8471da177e4SLinus Torvalds return nlmclnt_proc(filp->f_dentry->d_inode, cmd, fl); 8481da177e4SLinus Torvalds } 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvalds struct nfs_rpc_ops nfs_v3_clientops = { 8511da177e4SLinus Torvalds .version = 3, /* protocol version */ 8521da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 853b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 854b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 8551da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 8561da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 8571da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 8581da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 8591da177e4SLinus Torvalds .access = nfs3_proc_access, 8601da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 8611da177e4SLinus Torvalds .read = nfs3_proc_read, 8621da177e4SLinus Torvalds .write = nfs3_proc_write, 8631da177e4SLinus Torvalds .commit = nfs3_proc_commit, 8641da177e4SLinus Torvalds .create = nfs3_proc_create, 8651da177e4SLinus Torvalds .remove = nfs3_proc_remove, 8661da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 8671da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 8681da177e4SLinus Torvalds .rename = nfs3_proc_rename, 8691da177e4SLinus Torvalds .link = nfs3_proc_link, 8701da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 8711da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 8721da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 8731da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 8741da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 8751da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 8761da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 8771da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 8781da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 8791da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 8801da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 8811da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 8821da177e4SLinus Torvalds .file_open = nfs_open, 8831da177e4SLinus Torvalds .file_release = nfs_release, 8841da177e4SLinus Torvalds .lock = nfs3_proc_lock, 8851da177e4SLinus Torvalds }; 886