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 22006ea73eSChuck Lever #include "iostat.h" 23006ea73eSChuck Lever 241da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds extern struct rpc_procinfo nfs3_procedures[]; 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds /* A wrapper to handle the EJUKEBOX error message */ 291da177e4SLinus Torvalds static int 301da177e4SLinus Torvalds nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags) 311da177e4SLinus Torvalds { 321da177e4SLinus Torvalds sigset_t oldset; 331da177e4SLinus Torvalds int res; 341da177e4SLinus Torvalds rpc_clnt_sigmask(clnt, &oldset); 351da177e4SLinus Torvalds do { 361da177e4SLinus Torvalds res = rpc_call_sync(clnt, msg, flags); 371da177e4SLinus Torvalds if (res != -EJUKEBOX) 381da177e4SLinus Torvalds break; 39041e0e3bSNishanth Aravamudan schedule_timeout_interruptible(NFS_JUKEBOX_RETRY_TIME); 401da177e4SLinus Torvalds res = -ERESTARTSYS; 411da177e4SLinus Torvalds } while (!signalled()); 421da177e4SLinus Torvalds rpc_clnt_sigunmask(clnt, &oldset); 431da177e4SLinus Torvalds return res; 441da177e4SLinus Torvalds } 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds static inline int 471da177e4SLinus Torvalds nfs3_rpc_call_wrapper(struct rpc_clnt *clnt, u32 proc, void *argp, void *resp, int flags) 481da177e4SLinus Torvalds { 491da177e4SLinus Torvalds struct rpc_message msg = { 50b7fa0554SAndreas Gruenbacher .rpc_proc = &clnt->cl_procinfo[proc], 511da177e4SLinus Torvalds .rpc_argp = argp, 521da177e4SLinus Torvalds .rpc_resp = resp, 531da177e4SLinus Torvalds }; 541da177e4SLinus Torvalds return nfs3_rpc_wrapper(clnt, &msg, flags); 551da177e4SLinus Torvalds } 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds #define rpc_call(clnt, proc, argp, resp, flags) \ 581da177e4SLinus Torvalds nfs3_rpc_call_wrapper(clnt, proc, argp, resp, flags) 591da177e4SLinus Torvalds #define rpc_call_sync(clnt, msg, flags) \ 601da177e4SLinus Torvalds nfs3_rpc_wrapper(clnt, msg, flags) 611da177e4SLinus Torvalds 621da177e4SLinus Torvalds static int 63006ea73eSChuck Lever nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode) 641da177e4SLinus Torvalds { 651da177e4SLinus Torvalds if (task->tk_status != -EJUKEBOX) 661da177e4SLinus Torvalds return 0; 67006ea73eSChuck Lever nfs_inc_stats(inode, NFSIOS_DELAY); 681da177e4SLinus Torvalds task->tk_status = 0; 691da177e4SLinus Torvalds rpc_restart_call(task); 701da177e4SLinus Torvalds rpc_delay(task, NFS_JUKEBOX_RETRY_TIME); 711da177e4SLinus Torvalds return 1; 721da177e4SLinus Torvalds } 731da177e4SLinus Torvalds 7403c21733SJ. Bruce Fields static int 7503c21733SJ. Bruce Fields do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle, 7603c21733SJ. Bruce Fields struct nfs_fsinfo *info) 7703c21733SJ. Bruce Fields { 7803c21733SJ. Bruce Fields int status; 7903c21733SJ. Bruce Fields 8003c21733SJ. Bruce Fields dprintk("%s: call fsinfo\n", __FUNCTION__); 8103c21733SJ. Bruce Fields nfs_fattr_init(info->fattr); 8203c21733SJ. Bruce Fields status = rpc_call(client, NFS3PROC_FSINFO, fhandle, info, 0); 8303c21733SJ. Bruce Fields dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status); 8403c21733SJ. Bruce Fields if (!(info->fattr->valid & NFS_ATTR_FATTR)) { 8503c21733SJ. Bruce Fields status = rpc_call(client, NFS3PROC_GETATTR, fhandle, info->fattr, 0); 8603c21733SJ. Bruce Fields dprintk("%s: reply getattr: %d\n", __FUNCTION__, status); 8703c21733SJ. Bruce Fields } 8803c21733SJ. Bruce Fields return status; 8903c21733SJ. Bruce Fields } 9003c21733SJ. Bruce Fields 911da177e4SLinus Torvalds /* 921da177e4SLinus Torvalds * Bare-bones access to getattr: this is for nfs_read_super. 931da177e4SLinus Torvalds */ 941da177e4SLinus Torvalds static int 951da177e4SLinus Torvalds nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 961da177e4SLinus Torvalds struct nfs_fsinfo *info) 971da177e4SLinus Torvalds { 981da177e4SLinus Torvalds int status; 991da177e4SLinus Torvalds 10003c21733SJ. Bruce Fields status = do_proc_get_root(server->client, fhandle, info); 10103c21733SJ. Bruce Fields if (status && server->client_sys != server->client) 10203c21733SJ. Bruce Fields status = do_proc_get_root(server->client_sys, fhandle, info); 1031da177e4SLinus Torvalds return status; 1041da177e4SLinus Torvalds } 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds /* 1071da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 1081da177e4SLinus Torvalds */ 1091da177e4SLinus Torvalds static int 1101da177e4SLinus Torvalds nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1111da177e4SLinus Torvalds struct nfs_fattr *fattr) 1121da177e4SLinus Torvalds { 1131da177e4SLinus Torvalds int status; 1141da177e4SLinus Torvalds 1151da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1160e574af1STrond Myklebust nfs_fattr_init(fattr); 1171da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_GETATTR, 1181da177e4SLinus Torvalds fhandle, fattr, 0); 1191da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1201da177e4SLinus Torvalds return status; 1211da177e4SLinus Torvalds } 1221da177e4SLinus Torvalds 1231da177e4SLinus Torvalds static int 1241da177e4SLinus Torvalds nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1251da177e4SLinus Torvalds struct iattr *sattr) 1261da177e4SLinus Torvalds { 1271da177e4SLinus Torvalds struct inode *inode = dentry->d_inode; 1281da177e4SLinus Torvalds struct nfs3_sattrargs arg = { 1291da177e4SLinus Torvalds .fh = NFS_FH(inode), 1301da177e4SLinus Torvalds .sattr = sattr, 1311da177e4SLinus Torvalds }; 1321da177e4SLinus Torvalds int status; 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 1350e574af1STrond Myklebust nfs_fattr_init(fattr); 1361da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 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 nfs_fattr dir_attr; 1481da177e4SLinus Torvalds struct nfs3_diropargs arg = { 1491da177e4SLinus Torvalds .fh = NFS_FH(dir), 1501da177e4SLinus Torvalds .name = name->name, 1511da177e4SLinus Torvalds .len = name->len 1521da177e4SLinus Torvalds }; 1531da177e4SLinus Torvalds struct nfs3_diropres res = { 1541da177e4SLinus Torvalds .dir_attr = &dir_attr, 1551da177e4SLinus Torvalds .fh = fhandle, 1561da177e4SLinus Torvalds .fattr = fattr 1571da177e4SLinus Torvalds }; 1581da177e4SLinus Torvalds int status; 1591da177e4SLinus Torvalds 1601da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 1610e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 1620e574af1STrond Myklebust nfs_fattr_init(fattr); 1631da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0); 1641da177e4SLinus Torvalds if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) 1651da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR, 1661da177e4SLinus Torvalds fhandle, fattr, 0); 1671da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1681da177e4SLinus Torvalds if (status >= 0) 1691da177e4SLinus Torvalds status = nfs_refresh_inode(dir, &dir_attr); 1701da177e4SLinus Torvalds return status; 1711da177e4SLinus Torvalds } 1721da177e4SLinus Torvalds 1731da177e4SLinus Torvalds static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry) 1741da177e4SLinus Torvalds { 1751da177e4SLinus Torvalds struct nfs_fattr fattr; 1761da177e4SLinus Torvalds struct nfs3_accessargs arg = { 1771da177e4SLinus Torvalds .fh = NFS_FH(inode), 1781da177e4SLinus Torvalds }; 1791da177e4SLinus Torvalds struct nfs3_accessres res = { 1801da177e4SLinus Torvalds .fattr = &fattr, 1811da177e4SLinus Torvalds }; 1821da177e4SLinus Torvalds struct rpc_message msg = { 1831da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS], 1841da177e4SLinus Torvalds .rpc_argp = &arg, 1851da177e4SLinus Torvalds .rpc_resp = &res, 1861da177e4SLinus Torvalds .rpc_cred = entry->cred 1871da177e4SLinus Torvalds }; 1881da177e4SLinus Torvalds int mode = entry->mask; 1891da177e4SLinus Torvalds int status; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds dprintk("NFS call access\n"); 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds if (mode & MAY_READ) 1941da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_READ; 1951da177e4SLinus Torvalds if (S_ISDIR(inode->i_mode)) { 1961da177e4SLinus Torvalds if (mode & MAY_WRITE) 1971da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE; 1981da177e4SLinus Torvalds if (mode & MAY_EXEC) 1991da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_LOOKUP; 2001da177e4SLinus Torvalds } else { 2011da177e4SLinus Torvalds if (mode & MAY_WRITE) 2021da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND; 2031da177e4SLinus Torvalds if (mode & MAY_EXEC) 2041da177e4SLinus Torvalds arg.access |= NFS3_ACCESS_EXECUTE; 2051da177e4SLinus Torvalds } 2060e574af1STrond Myklebust nfs_fattr_init(&fattr); 2071da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 2081da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 2091da177e4SLinus Torvalds if (status == 0) { 2101da177e4SLinus Torvalds entry->mask = 0; 2111da177e4SLinus Torvalds if (res.access & NFS3_ACCESS_READ) 2121da177e4SLinus Torvalds entry->mask |= MAY_READ; 2131da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE)) 2141da177e4SLinus Torvalds entry->mask |= MAY_WRITE; 2151da177e4SLinus Torvalds if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE)) 2161da177e4SLinus Torvalds entry->mask |= MAY_EXEC; 2171da177e4SLinus Torvalds } 2181da177e4SLinus Torvalds dprintk("NFS reply access: %d\n", status); 2191da177e4SLinus Torvalds return status; 2201da177e4SLinus Torvalds } 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds static int nfs3_proc_readlink(struct inode *inode, struct page *page, 2231da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 2241da177e4SLinus Torvalds { 2251da177e4SLinus Torvalds struct nfs_fattr fattr; 2261da177e4SLinus Torvalds struct nfs3_readlinkargs args = { 2271da177e4SLinus Torvalds .fh = NFS_FH(inode), 2281da177e4SLinus Torvalds .pgbase = pgbase, 2291da177e4SLinus Torvalds .pglen = pglen, 2301da177e4SLinus Torvalds .pages = &page 2311da177e4SLinus Torvalds }; 2321da177e4SLinus Torvalds int status; 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 2350e574af1STrond Myklebust nfs_fattr_init(&fattr); 2361da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK, 2371da177e4SLinus Torvalds &args, &fattr, 0); 2381da177e4SLinus Torvalds nfs_refresh_inode(inode, &fattr); 2391da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 2401da177e4SLinus Torvalds return status; 2411da177e4SLinus Torvalds } 2421da177e4SLinus Torvalds 2431da177e4SLinus Torvalds static int nfs3_proc_read(struct nfs_read_data *rdata) 2441da177e4SLinus Torvalds { 2451da177e4SLinus Torvalds int flags = rdata->flags; 2461da177e4SLinus Torvalds struct inode * inode = rdata->inode; 2471da177e4SLinus Torvalds struct nfs_fattr * fattr = rdata->res.fattr; 2481da177e4SLinus Torvalds struct rpc_message msg = { 2491da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READ], 2501da177e4SLinus Torvalds .rpc_argp = &rdata->args, 2511da177e4SLinus Torvalds .rpc_resp = &rdata->res, 2521da177e4SLinus Torvalds .rpc_cred = rdata->cred, 2531da177e4SLinus Torvalds }; 2541da177e4SLinus Torvalds int status; 2551da177e4SLinus Torvalds 2561da177e4SLinus Torvalds dprintk("NFS call read %d @ %Ld\n", rdata->args.count, 2571da177e4SLinus Torvalds (long long) rdata->args.offset); 2580e574af1STrond Myklebust nfs_fattr_init(fattr); 2591da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags); 2601da177e4SLinus Torvalds if (status >= 0) 2611da177e4SLinus Torvalds nfs_refresh_inode(inode, fattr); 2621da177e4SLinus Torvalds dprintk("NFS reply read: %d\n", status); 2631da177e4SLinus Torvalds return status; 2641da177e4SLinus Torvalds } 2651da177e4SLinus Torvalds 2661da177e4SLinus Torvalds static int nfs3_proc_write(struct nfs_write_data *wdata) 2671da177e4SLinus Torvalds { 2681da177e4SLinus Torvalds int rpcflags = wdata->flags; 2691da177e4SLinus Torvalds struct inode * inode = wdata->inode; 2701da177e4SLinus Torvalds struct nfs_fattr * fattr = wdata->res.fattr; 2711da177e4SLinus Torvalds struct rpc_message msg = { 2721da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], 2731da177e4SLinus Torvalds .rpc_argp = &wdata->args, 2741da177e4SLinus Torvalds .rpc_resp = &wdata->res, 2751da177e4SLinus Torvalds .rpc_cred = wdata->cred, 2761da177e4SLinus Torvalds }; 2771da177e4SLinus Torvalds int status; 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds dprintk("NFS call write %d @ %Ld\n", wdata->args.count, 2801da177e4SLinus Torvalds (long long) wdata->args.offset); 2810e574af1STrond Myklebust nfs_fattr_init(fattr); 2821da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags); 2831da177e4SLinus Torvalds if (status >= 0) 284decf491fSTrond Myklebust nfs_post_op_update_inode(inode, fattr); 2851da177e4SLinus Torvalds dprintk("NFS reply write: %d\n", status); 2861da177e4SLinus Torvalds return status < 0? status : wdata->res.count; 2871da177e4SLinus Torvalds } 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds static int nfs3_proc_commit(struct nfs_write_data *cdata) 2901da177e4SLinus Torvalds { 2911da177e4SLinus Torvalds struct inode * inode = cdata->inode; 2921da177e4SLinus Torvalds struct nfs_fattr * fattr = cdata->res.fattr; 2931da177e4SLinus Torvalds struct rpc_message msg = { 2941da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], 2951da177e4SLinus Torvalds .rpc_argp = &cdata->args, 2961da177e4SLinus Torvalds .rpc_resp = &cdata->res, 2971da177e4SLinus Torvalds .rpc_cred = cdata->cred, 2981da177e4SLinus Torvalds }; 2991da177e4SLinus Torvalds int status; 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds dprintk("NFS call commit %d @ %Ld\n", cdata->args.count, 3021da177e4SLinus Torvalds (long long) cdata->args.offset); 3030e574af1STrond Myklebust nfs_fattr_init(fattr); 3041da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 3051da177e4SLinus Torvalds if (status >= 0) 306decf491fSTrond Myklebust nfs_post_op_update_inode(inode, fattr); 3071da177e4SLinus Torvalds dprintk("NFS reply commit: %d\n", status); 3081da177e4SLinus Torvalds return status; 3091da177e4SLinus Torvalds } 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds /* 3121da177e4SLinus Torvalds * Create a regular file. 3131da177e4SLinus Torvalds * For now, we don't implement O_EXCL. 3141da177e4SLinus Torvalds */ 3151da177e4SLinus Torvalds static int 3161da177e4SLinus Torvalds nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 31702a913a7STrond Myklebust int flags, struct nameidata *nd) 3181da177e4SLinus Torvalds { 3191da177e4SLinus Torvalds struct nfs_fh fhandle; 3201da177e4SLinus Torvalds struct nfs_fattr fattr; 3211da177e4SLinus Torvalds struct nfs_fattr dir_attr; 3221da177e4SLinus Torvalds struct nfs3_createargs arg = { 3231da177e4SLinus Torvalds .fh = NFS_FH(dir), 3241da177e4SLinus Torvalds .name = dentry->d_name.name, 3251da177e4SLinus Torvalds .len = dentry->d_name.len, 3261da177e4SLinus Torvalds .sattr = sattr, 3271da177e4SLinus Torvalds }; 3281da177e4SLinus Torvalds struct nfs3_diropres res = { 3291da177e4SLinus Torvalds .dir_attr = &dir_attr, 3301da177e4SLinus Torvalds .fh = &fhandle, 3311da177e4SLinus Torvalds .fattr = &fattr 3321da177e4SLinus Torvalds }; 333055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 3341da177e4SLinus Torvalds int status; 3351da177e4SLinus Torvalds 3361da177e4SLinus Torvalds dprintk("NFS call create %s\n", dentry->d_name.name); 3371da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_UNCHECKED; 3381da177e4SLinus Torvalds if (flags & O_EXCL) { 3391da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_EXCLUSIVE; 3401da177e4SLinus Torvalds arg.verifier[0] = jiffies; 3411da177e4SLinus Torvalds arg.verifier[1] = current->pid; 3421da177e4SLinus Torvalds } 3431da177e4SLinus Torvalds 344055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 345055ffbeaSAndreas Gruenbacher 3461da177e4SLinus Torvalds again: 3470e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 3480e574af1STrond Myklebust nfs_fattr_init(&fattr); 3491da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0); 350decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds /* If the server doesn't support the exclusive creation semantics, 3531da177e4SLinus Torvalds * try again with simple 'guarded' mode. */ 3541da177e4SLinus Torvalds if (status == NFSERR_NOTSUPP) { 3551da177e4SLinus Torvalds switch (arg.createmode) { 3561da177e4SLinus Torvalds case NFS3_CREATE_EXCLUSIVE: 3571da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_GUARDED; 3581da177e4SLinus Torvalds break; 3591da177e4SLinus Torvalds 3601da177e4SLinus Torvalds case NFS3_CREATE_GUARDED: 3611da177e4SLinus Torvalds arg.createmode = NFS3_CREATE_UNCHECKED; 3621da177e4SLinus Torvalds break; 3631da177e4SLinus Torvalds 3641da177e4SLinus Torvalds case NFS3_CREATE_UNCHECKED: 3651da177e4SLinus Torvalds goto out; 3661da177e4SLinus Torvalds } 3671da177e4SLinus Torvalds goto again; 3681da177e4SLinus Torvalds } 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds if (status == 0) 3711da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fhandle, &fattr); 3721da177e4SLinus Torvalds if (status != 0) 3731da177e4SLinus Torvalds goto out; 3741da177e4SLinus Torvalds 3751da177e4SLinus Torvalds /* When we created the file with exclusive semantics, make 3761da177e4SLinus Torvalds * sure we set the attributes afterwards. */ 3771da177e4SLinus Torvalds if (arg.createmode == NFS3_CREATE_EXCLUSIVE) { 3781da177e4SLinus Torvalds dprintk("NFS call setattr (post-create)\n"); 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_ATIME_SET)) 3811da177e4SLinus Torvalds sattr->ia_valid |= ATTR_ATIME; 3821da177e4SLinus Torvalds if (!(sattr->ia_valid & ATTR_MTIME_SET)) 3831da177e4SLinus Torvalds sattr->ia_valid |= ATTR_MTIME; 3841da177e4SLinus Torvalds 3851da177e4SLinus Torvalds /* Note: we could use a guarded setattr here, but I'm 3861da177e4SLinus Torvalds * not sure this buys us anything (and I'd have 3871da177e4SLinus Torvalds * to revamp the NFSv3 XDR code) */ 3881da177e4SLinus Torvalds status = nfs3_proc_setattr(dentry, &fattr, sattr); 38965e4308dSTrond Myklebust if (status == 0) 39065e4308dSTrond Myklebust nfs_setattr_update_inode(dentry->d_inode, sattr); 3911da177e4SLinus Torvalds nfs_refresh_inode(dentry->d_inode, &fattr); 3921da177e4SLinus Torvalds dprintk("NFS reply setattr (post-create): %d\n", status); 3931da177e4SLinus Torvalds } 394055ffbeaSAndreas Gruenbacher if (status != 0) 395055ffbeaSAndreas Gruenbacher goto out; 396055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 3971da177e4SLinus Torvalds out: 3981da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 3991da177e4SLinus Torvalds return status; 4001da177e4SLinus Torvalds } 4011da177e4SLinus Torvalds 4021da177e4SLinus Torvalds static int 4031da177e4SLinus Torvalds nfs3_proc_remove(struct inode *dir, struct qstr *name) 4041da177e4SLinus Torvalds { 4051da177e4SLinus Torvalds struct nfs_fattr dir_attr; 4061da177e4SLinus Torvalds struct nfs3_diropargs arg = { 4071da177e4SLinus Torvalds .fh = NFS_FH(dir), 4081da177e4SLinus Torvalds .name = name->name, 4091da177e4SLinus Torvalds .len = name->len 4101da177e4SLinus Torvalds }; 4111da177e4SLinus Torvalds struct rpc_message msg = { 4121da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE], 4131da177e4SLinus Torvalds .rpc_argp = &arg, 4141da177e4SLinus Torvalds .rpc_resp = &dir_attr, 4151da177e4SLinus Torvalds }; 4161da177e4SLinus Torvalds int status; 4171da177e4SLinus Torvalds 4181da177e4SLinus Torvalds dprintk("NFS call remove %s\n", name->name); 4190e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 4201da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 421decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 4221da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 4231da177e4SLinus Torvalds return status; 4241da177e4SLinus Torvalds } 4251da177e4SLinus Torvalds 4261da177e4SLinus Torvalds static int 4271da177e4SLinus Torvalds nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name) 4281da177e4SLinus Torvalds { 4291da177e4SLinus Torvalds struct unlinkxdr { 4301da177e4SLinus Torvalds struct nfs3_diropargs arg; 4311da177e4SLinus Torvalds struct nfs_fattr res; 4321da177e4SLinus Torvalds } *ptr; 4331da177e4SLinus Torvalds 4341da177e4SLinus Torvalds ptr = (struct unlinkxdr *)kmalloc(sizeof(*ptr), GFP_KERNEL); 4351da177e4SLinus Torvalds if (!ptr) 4361da177e4SLinus Torvalds return -ENOMEM; 4371da177e4SLinus Torvalds ptr->arg.fh = NFS_FH(dir->d_inode); 4381da177e4SLinus Torvalds ptr->arg.name = name->name; 4391da177e4SLinus Torvalds ptr->arg.len = name->len; 4400e574af1STrond Myklebust nfs_fattr_init(&ptr->res); 4411da177e4SLinus Torvalds msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE]; 4421da177e4SLinus Torvalds msg->rpc_argp = &ptr->arg; 4431da177e4SLinus Torvalds msg->rpc_resp = &ptr->res; 4441da177e4SLinus Torvalds return 0; 4451da177e4SLinus Torvalds } 4461da177e4SLinus Torvalds 4471da177e4SLinus Torvalds static int 4481da177e4SLinus Torvalds nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task) 4491da177e4SLinus Torvalds { 4501da177e4SLinus Torvalds struct rpc_message *msg = &task->tk_msg; 4511da177e4SLinus Torvalds struct nfs_fattr *dir_attr; 4521da177e4SLinus Torvalds 453006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, dir->d_inode)) 4541da177e4SLinus Torvalds return 1; 4551da177e4SLinus Torvalds if (msg->rpc_argp) { 4561da177e4SLinus Torvalds dir_attr = (struct nfs_fattr*)msg->rpc_resp; 457decf491fSTrond Myklebust nfs_post_op_update_inode(dir->d_inode, dir_attr); 4581da177e4SLinus Torvalds kfree(msg->rpc_argp); 4591da177e4SLinus Torvalds } 4601da177e4SLinus Torvalds return 0; 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds static int 4641da177e4SLinus Torvalds nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name, 4651da177e4SLinus Torvalds struct inode *new_dir, struct qstr *new_name) 4661da177e4SLinus Torvalds { 4671da177e4SLinus Torvalds struct nfs_fattr old_dir_attr, new_dir_attr; 4681da177e4SLinus Torvalds struct nfs3_renameargs arg = { 4691da177e4SLinus Torvalds .fromfh = NFS_FH(old_dir), 4701da177e4SLinus Torvalds .fromname = old_name->name, 4711da177e4SLinus Torvalds .fromlen = old_name->len, 4721da177e4SLinus Torvalds .tofh = NFS_FH(new_dir), 4731da177e4SLinus Torvalds .toname = new_name->name, 4741da177e4SLinus Torvalds .tolen = new_name->len 4751da177e4SLinus Torvalds }; 4761da177e4SLinus Torvalds struct nfs3_renameres res = { 4771da177e4SLinus Torvalds .fromattr = &old_dir_attr, 4781da177e4SLinus Torvalds .toattr = &new_dir_attr 4791da177e4SLinus Torvalds }; 4801da177e4SLinus Torvalds int status; 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name); 4830e574af1STrond Myklebust nfs_fattr_init(&old_dir_attr); 4840e574af1STrond Myklebust nfs_fattr_init(&new_dir_attr); 4851da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0); 486decf491fSTrond Myklebust nfs_post_op_update_inode(old_dir, &old_dir_attr); 487decf491fSTrond Myklebust nfs_post_op_update_inode(new_dir, &new_dir_attr); 4881da177e4SLinus Torvalds dprintk("NFS reply rename: %d\n", status); 4891da177e4SLinus Torvalds return status; 4901da177e4SLinus Torvalds } 4911da177e4SLinus Torvalds 4921da177e4SLinus Torvalds static int 4931da177e4SLinus Torvalds nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name) 4941da177e4SLinus Torvalds { 4951da177e4SLinus Torvalds struct nfs_fattr dir_attr, fattr; 4961da177e4SLinus Torvalds struct nfs3_linkargs arg = { 4971da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 4981da177e4SLinus Torvalds .tofh = NFS_FH(dir), 4991da177e4SLinus Torvalds .toname = name->name, 5001da177e4SLinus Torvalds .tolen = name->len 5011da177e4SLinus Torvalds }; 5021da177e4SLinus Torvalds struct nfs3_linkres res = { 5031da177e4SLinus Torvalds .dir_attr = &dir_attr, 5041da177e4SLinus Torvalds .fattr = &fattr 5051da177e4SLinus Torvalds }; 5061da177e4SLinus Torvalds int status; 5071da177e4SLinus Torvalds 5081da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 5090e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 5100e574af1STrond Myklebust nfs_fattr_init(&fattr); 5111da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0); 512decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 513decf491fSTrond Myklebust nfs_post_op_update_inode(inode, &fattr); 5141da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 5151da177e4SLinus Torvalds return status; 5161da177e4SLinus Torvalds } 5171da177e4SLinus Torvalds 5181da177e4SLinus Torvalds static int 5191da177e4SLinus Torvalds nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path, 5201da177e4SLinus Torvalds struct iattr *sattr, struct nfs_fh *fhandle, 5211da177e4SLinus Torvalds struct nfs_fattr *fattr) 5221da177e4SLinus Torvalds { 5231da177e4SLinus Torvalds struct nfs_fattr dir_attr; 5241da177e4SLinus Torvalds struct nfs3_symlinkargs arg = { 5251da177e4SLinus Torvalds .fromfh = NFS_FH(dir), 5261da177e4SLinus Torvalds .fromname = name->name, 5271da177e4SLinus Torvalds .fromlen = name->len, 5281da177e4SLinus Torvalds .topath = path->name, 5291da177e4SLinus Torvalds .tolen = path->len, 5301da177e4SLinus Torvalds .sattr = sattr 5311da177e4SLinus Torvalds }; 5321da177e4SLinus Torvalds struct nfs3_diropres res = { 5331da177e4SLinus Torvalds .dir_attr = &dir_attr, 5341da177e4SLinus Torvalds .fh = fhandle, 5351da177e4SLinus Torvalds .fattr = fattr 5361da177e4SLinus Torvalds }; 5371da177e4SLinus Torvalds int status; 5381da177e4SLinus Torvalds 5391da177e4SLinus Torvalds if (path->len > NFS3_MAXPATHLEN) 5401da177e4SLinus Torvalds return -ENAMETOOLONG; 5411da177e4SLinus Torvalds dprintk("NFS call symlink %s -> %s\n", name->name, path->name); 5420e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 5430e574af1STrond Myklebust nfs_fattr_init(fattr); 5441da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0); 545decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 5461da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 5471da177e4SLinus Torvalds return status; 5481da177e4SLinus Torvalds } 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds static int 5511da177e4SLinus Torvalds nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 5521da177e4SLinus Torvalds { 5531da177e4SLinus Torvalds struct nfs_fh fhandle; 5541da177e4SLinus Torvalds struct nfs_fattr fattr, dir_attr; 5551da177e4SLinus Torvalds struct nfs3_mkdirargs arg = { 5561da177e4SLinus Torvalds .fh = NFS_FH(dir), 5571da177e4SLinus Torvalds .name = dentry->d_name.name, 5581da177e4SLinus Torvalds .len = dentry->d_name.len, 5591da177e4SLinus Torvalds .sattr = sattr 5601da177e4SLinus Torvalds }; 5611da177e4SLinus Torvalds struct nfs3_diropres res = { 5621da177e4SLinus Torvalds .dir_attr = &dir_attr, 5631da177e4SLinus Torvalds .fh = &fhandle, 5641da177e4SLinus Torvalds .fattr = &fattr 5651da177e4SLinus Torvalds }; 566055ffbeaSAndreas Gruenbacher int mode = sattr->ia_mode; 5671da177e4SLinus Torvalds int status; 5681da177e4SLinus Torvalds 5691da177e4SLinus Torvalds dprintk("NFS call mkdir %s\n", dentry->d_name.name); 570055ffbeaSAndreas Gruenbacher 571055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 572055ffbeaSAndreas Gruenbacher 5730e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 5740e574af1STrond Myklebust nfs_fattr_init(&fattr); 5751da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0); 576decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 577055ffbeaSAndreas Gruenbacher if (status != 0) 578055ffbeaSAndreas Gruenbacher goto out; 5791da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fhandle, &fattr); 580055ffbeaSAndreas Gruenbacher if (status != 0) 581055ffbeaSAndreas Gruenbacher goto out; 582055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 583055ffbeaSAndreas Gruenbacher out: 5841da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 5851da177e4SLinus Torvalds return status; 5861da177e4SLinus Torvalds } 5871da177e4SLinus Torvalds 5881da177e4SLinus Torvalds static int 5891da177e4SLinus Torvalds nfs3_proc_rmdir(struct inode *dir, struct qstr *name) 5901da177e4SLinus Torvalds { 5911da177e4SLinus Torvalds struct nfs_fattr dir_attr; 5921da177e4SLinus Torvalds struct nfs3_diropargs arg = { 5931da177e4SLinus Torvalds .fh = NFS_FH(dir), 5941da177e4SLinus Torvalds .name = name->name, 5951da177e4SLinus Torvalds .len = name->len 5961da177e4SLinus Torvalds }; 5971da177e4SLinus Torvalds int status; 5981da177e4SLinus Torvalds 5991da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 6000e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 6011da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0); 602decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 6031da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 6041da177e4SLinus Torvalds return status; 6051da177e4SLinus Torvalds } 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds /* 6081da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass the user buffer 6091da177e4SLinus Torvalds * to the encode function, which installs it in the receive iovec. 6101da177e4SLinus Torvalds * The decode function itself doesn't perform any decoding, it just makes 6111da177e4SLinus Torvalds * sure the reply is syntactically correct. 6121da177e4SLinus Torvalds * 6131da177e4SLinus Torvalds * Also note that this implementation handles both plain readdir and 6141da177e4SLinus Torvalds * readdirplus. 6151da177e4SLinus Torvalds */ 6161da177e4SLinus Torvalds static int 6171da177e4SLinus Torvalds nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 6181da177e4SLinus Torvalds u64 cookie, struct page *page, unsigned int count, int plus) 6191da177e4SLinus Torvalds { 6201da177e4SLinus Torvalds struct inode *dir = dentry->d_inode; 6211da177e4SLinus Torvalds struct nfs_fattr dir_attr; 6221da177e4SLinus Torvalds u32 *verf = NFS_COOKIEVERF(dir); 6231da177e4SLinus Torvalds struct nfs3_readdirargs arg = { 6241da177e4SLinus Torvalds .fh = NFS_FH(dir), 6251da177e4SLinus Torvalds .cookie = cookie, 6261da177e4SLinus Torvalds .verf = {verf[0], verf[1]}, 6271da177e4SLinus Torvalds .plus = plus, 6281da177e4SLinus Torvalds .count = count, 6291da177e4SLinus Torvalds .pages = &page 6301da177e4SLinus Torvalds }; 6311da177e4SLinus Torvalds struct nfs3_readdirres res = { 6321da177e4SLinus Torvalds .dir_attr = &dir_attr, 6331da177e4SLinus Torvalds .verf = verf, 6341da177e4SLinus Torvalds .plus = plus 6351da177e4SLinus Torvalds }; 6361da177e4SLinus Torvalds struct rpc_message msg = { 6371da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR], 6381da177e4SLinus Torvalds .rpc_argp = &arg, 6391da177e4SLinus Torvalds .rpc_resp = &res, 6401da177e4SLinus Torvalds .rpc_cred = cred 6411da177e4SLinus Torvalds }; 6421da177e4SLinus Torvalds int status; 6431da177e4SLinus Torvalds 6441da177e4SLinus Torvalds lock_kernel(); 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds if (plus) 6471da177e4SLinus Torvalds msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS]; 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds dprintk("NFS call readdir%s %d\n", 6501da177e4SLinus Torvalds plus? "plus" : "", (unsigned int) cookie); 6511da177e4SLinus Torvalds 6520e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 6531da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 6541da177e4SLinus Torvalds nfs_refresh_inode(dir, &dir_attr); 6551da177e4SLinus Torvalds dprintk("NFS reply readdir: %d\n", status); 6561da177e4SLinus Torvalds unlock_kernel(); 6571da177e4SLinus Torvalds return status; 6581da177e4SLinus Torvalds } 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds static int 6611da177e4SLinus Torvalds nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 6621da177e4SLinus Torvalds dev_t rdev) 6631da177e4SLinus Torvalds { 6641da177e4SLinus Torvalds struct nfs_fh fh; 6651da177e4SLinus Torvalds struct nfs_fattr fattr, dir_attr; 6661da177e4SLinus Torvalds struct nfs3_mknodargs arg = { 6671da177e4SLinus Torvalds .fh = NFS_FH(dir), 6681da177e4SLinus Torvalds .name = dentry->d_name.name, 6691da177e4SLinus Torvalds .len = dentry->d_name.len, 6701da177e4SLinus Torvalds .sattr = sattr, 6711da177e4SLinus Torvalds .rdev = rdev 6721da177e4SLinus Torvalds }; 6731da177e4SLinus Torvalds struct nfs3_diropres res = { 6741da177e4SLinus Torvalds .dir_attr = &dir_attr, 6751da177e4SLinus Torvalds .fh = &fh, 6761da177e4SLinus Torvalds .fattr = &fattr 6771da177e4SLinus Torvalds }; 678055ffbeaSAndreas Gruenbacher mode_t mode = sattr->ia_mode; 6791da177e4SLinus Torvalds int status; 6801da177e4SLinus Torvalds 6811da177e4SLinus Torvalds switch (sattr->ia_mode & S_IFMT) { 6821da177e4SLinus Torvalds case S_IFBLK: arg.type = NF3BLK; break; 6831da177e4SLinus Torvalds case S_IFCHR: arg.type = NF3CHR; break; 6841da177e4SLinus Torvalds case S_IFIFO: arg.type = NF3FIFO; break; 6851da177e4SLinus Torvalds case S_IFSOCK: arg.type = NF3SOCK; break; 6861da177e4SLinus Torvalds default: return -EINVAL; 6871da177e4SLinus Torvalds } 6881da177e4SLinus Torvalds 6891da177e4SLinus Torvalds dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name, 6901da177e4SLinus Torvalds MAJOR(rdev), MINOR(rdev)); 691055ffbeaSAndreas Gruenbacher 692055ffbeaSAndreas Gruenbacher sattr->ia_mode &= ~current->fs->umask; 693055ffbeaSAndreas Gruenbacher 6940e574af1STrond Myklebust nfs_fattr_init(&dir_attr); 6950e574af1STrond Myklebust nfs_fattr_init(&fattr); 6961da177e4SLinus Torvalds status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0); 697decf491fSTrond Myklebust nfs_post_op_update_inode(dir, &dir_attr); 698055ffbeaSAndreas Gruenbacher if (status != 0) 699055ffbeaSAndreas Gruenbacher goto out; 7001da177e4SLinus Torvalds status = nfs_instantiate(dentry, &fh, &fattr); 701055ffbeaSAndreas Gruenbacher if (status != 0) 702055ffbeaSAndreas Gruenbacher goto out; 703055ffbeaSAndreas Gruenbacher status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode); 704055ffbeaSAndreas Gruenbacher out: 7051da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 7061da177e4SLinus Torvalds return status; 7071da177e4SLinus Torvalds } 7081da177e4SLinus Torvalds 7091da177e4SLinus Torvalds static int 7101da177e4SLinus Torvalds nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 7111da177e4SLinus Torvalds struct nfs_fsstat *stat) 7121da177e4SLinus Torvalds { 7131da177e4SLinus Torvalds int status; 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds dprintk("NFS call fsstat\n"); 7160e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 7171da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0); 7181da177e4SLinus Torvalds dprintk("NFS reply statfs: %d\n", status); 7191da177e4SLinus Torvalds return status; 7201da177e4SLinus Torvalds } 7211da177e4SLinus Torvalds 7221da177e4SLinus Torvalds static int 7231da177e4SLinus Torvalds nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 7241da177e4SLinus Torvalds struct nfs_fsinfo *info) 7251da177e4SLinus Torvalds { 7261da177e4SLinus Torvalds int status; 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 7290e574af1STrond Myklebust nfs_fattr_init(info->fattr); 7301da177e4SLinus Torvalds status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0); 7311da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 7321da177e4SLinus Torvalds return status; 7331da177e4SLinus Torvalds } 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvalds static int 7361da177e4SLinus Torvalds nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 7371da177e4SLinus Torvalds struct nfs_pathconf *info) 7381da177e4SLinus Torvalds { 7391da177e4SLinus Torvalds int status; 7401da177e4SLinus Torvalds 7411da177e4SLinus Torvalds dprintk("NFS call pathconf\n"); 7420e574af1STrond Myklebust nfs_fattr_init(info->fattr); 7431da177e4SLinus Torvalds status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0); 7441da177e4SLinus Torvalds dprintk("NFS reply pathconf: %d\n", status); 7451da177e4SLinus Torvalds return status; 7461da177e4SLinus Torvalds } 7471da177e4SLinus Torvalds 7481da177e4SLinus Torvalds extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int); 7491da177e4SLinus Torvalds 750963d8fe5STrond Myklebust static void nfs3_read_done(struct rpc_task *task, void *calldata) 7511da177e4SLinus Torvalds { 752963d8fe5STrond Myklebust struct nfs_read_data *data = calldata; 7531da177e4SLinus Torvalds 754006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 7551da177e4SLinus Torvalds return; 7561da177e4SLinus Torvalds /* Call back common NFS readpage processing */ 7571da177e4SLinus Torvalds if (task->tk_status >= 0) 7581da177e4SLinus Torvalds nfs_refresh_inode(data->inode, &data->fattr); 759963d8fe5STrond Myklebust nfs_readpage_result(task, calldata); 7601da177e4SLinus Torvalds } 7611da177e4SLinus Torvalds 762963d8fe5STrond Myklebust static const struct rpc_call_ops nfs3_read_ops = { 763963d8fe5STrond Myklebust .rpc_call_done = nfs3_read_done, 764963d8fe5STrond Myklebust .rpc_release = nfs_readdata_release, 765963d8fe5STrond Myklebust }; 766963d8fe5STrond Myklebust 7671da177e4SLinus Torvalds static void 7681da177e4SLinus Torvalds nfs3_proc_read_setup(struct nfs_read_data *data) 7691da177e4SLinus Torvalds { 7701da177e4SLinus Torvalds struct rpc_task *task = &data->task; 7711da177e4SLinus Torvalds struct inode *inode = data->inode; 7721da177e4SLinus Torvalds int flags; 7731da177e4SLinus Torvalds struct rpc_message msg = { 7741da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_READ], 7751da177e4SLinus Torvalds .rpc_argp = &data->args, 7761da177e4SLinus Torvalds .rpc_resp = &data->res, 7771da177e4SLinus Torvalds .rpc_cred = data->cred, 7781da177e4SLinus Torvalds }; 7791da177e4SLinus Torvalds 7801da177e4SLinus Torvalds /* N.B. Do we need to test? Never called for swapfile inode */ 7811da177e4SLinus Torvalds flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0); 7821da177e4SLinus Torvalds 7831da177e4SLinus Torvalds /* Finalize the task. */ 784963d8fe5STrond Myklebust rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_read_ops, data); 7851da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 7861da177e4SLinus Torvalds } 7871da177e4SLinus Torvalds 788963d8fe5STrond Myklebust static void nfs3_write_done(struct rpc_task *task, void *calldata) 7891da177e4SLinus Torvalds { 790963d8fe5STrond Myklebust struct nfs_write_data *data = calldata; 7911da177e4SLinus Torvalds 792006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 7931da177e4SLinus Torvalds return; 7941da177e4SLinus Torvalds if (task->tk_status >= 0) 795decf491fSTrond Myklebust nfs_post_op_update_inode(data->inode, data->res.fattr); 796963d8fe5STrond Myklebust nfs_writeback_done(task, calldata); 7971da177e4SLinus Torvalds } 7981da177e4SLinus Torvalds 799963d8fe5STrond Myklebust static const struct rpc_call_ops nfs3_write_ops = { 800963d8fe5STrond Myklebust .rpc_call_done = nfs3_write_done, 801963d8fe5STrond Myklebust .rpc_release = nfs_writedata_release, 802963d8fe5STrond Myklebust }; 803963d8fe5STrond Myklebust 8041da177e4SLinus Torvalds static void 8051da177e4SLinus Torvalds nfs3_proc_write_setup(struct nfs_write_data *data, int how) 8061da177e4SLinus Torvalds { 8071da177e4SLinus Torvalds struct rpc_task *task = &data->task; 8081da177e4SLinus Torvalds struct inode *inode = data->inode; 8091da177e4SLinus Torvalds int stable; 8101da177e4SLinus Torvalds int flags; 8111da177e4SLinus Torvalds struct rpc_message msg = { 8121da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_WRITE], 8131da177e4SLinus Torvalds .rpc_argp = &data->args, 8141da177e4SLinus Torvalds .rpc_resp = &data->res, 8151da177e4SLinus Torvalds .rpc_cred = data->cred, 8161da177e4SLinus Torvalds }; 8171da177e4SLinus Torvalds 8181da177e4SLinus Torvalds if (how & FLUSH_STABLE) { 8191da177e4SLinus Torvalds if (!NFS_I(inode)->ncommit) 8201da177e4SLinus Torvalds stable = NFS_FILE_SYNC; 8211da177e4SLinus Torvalds else 8221da177e4SLinus Torvalds stable = NFS_DATA_SYNC; 8231da177e4SLinus Torvalds } else 8241da177e4SLinus Torvalds stable = NFS_UNSTABLE; 8251da177e4SLinus Torvalds data->args.stable = stable; 8261da177e4SLinus Torvalds 8271da177e4SLinus Torvalds /* Set the initial flags for the task. */ 8281da177e4SLinus Torvalds flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC; 8291da177e4SLinus Torvalds 8301da177e4SLinus Torvalds /* Finalize the task. */ 831963d8fe5STrond Myklebust rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_write_ops, data); 8321da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 8331da177e4SLinus Torvalds } 8341da177e4SLinus Torvalds 835963d8fe5STrond Myklebust static void nfs3_commit_done(struct rpc_task *task, void *calldata) 8361da177e4SLinus Torvalds { 837963d8fe5STrond Myklebust struct nfs_write_data *data = calldata; 8381da177e4SLinus Torvalds 839006ea73eSChuck Lever if (nfs3_async_handle_jukebox(task, data->inode)) 8401da177e4SLinus Torvalds return; 8411da177e4SLinus Torvalds if (task->tk_status >= 0) 842decf491fSTrond Myklebust nfs_post_op_update_inode(data->inode, data->res.fattr); 843963d8fe5STrond Myklebust nfs_commit_done(task, calldata); 8441da177e4SLinus Torvalds } 8451da177e4SLinus Torvalds 846963d8fe5STrond Myklebust static const struct rpc_call_ops nfs3_commit_ops = { 847963d8fe5STrond Myklebust .rpc_call_done = nfs3_commit_done, 848963d8fe5STrond Myklebust .rpc_release = nfs_commit_release, 849963d8fe5STrond Myklebust }; 850963d8fe5STrond Myklebust 8511da177e4SLinus Torvalds static void 8521da177e4SLinus Torvalds nfs3_proc_commit_setup(struct nfs_write_data *data, int how) 8531da177e4SLinus Torvalds { 8541da177e4SLinus Torvalds struct rpc_task *task = &data->task; 8551da177e4SLinus Torvalds struct inode *inode = data->inode; 8561da177e4SLinus Torvalds int flags; 8571da177e4SLinus Torvalds struct rpc_message msg = { 8581da177e4SLinus Torvalds .rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT], 8591da177e4SLinus Torvalds .rpc_argp = &data->args, 8601da177e4SLinus Torvalds .rpc_resp = &data->res, 8611da177e4SLinus Torvalds .rpc_cred = data->cred, 8621da177e4SLinus Torvalds }; 8631da177e4SLinus Torvalds 8641da177e4SLinus Torvalds /* Set the initial flags for the task. */ 8651da177e4SLinus Torvalds flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC; 8661da177e4SLinus Torvalds 8671da177e4SLinus Torvalds /* Finalize the task. */ 868963d8fe5STrond Myklebust rpc_init_task(task, NFS_CLIENT(inode), flags, &nfs3_commit_ops, data); 8691da177e4SLinus Torvalds rpc_call_setup(task, &msg, 0); 8701da177e4SLinus Torvalds } 8711da177e4SLinus Torvalds 8721da177e4SLinus Torvalds static int 8731da177e4SLinus Torvalds nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 8741da177e4SLinus Torvalds { 8751da177e4SLinus Torvalds return nlmclnt_proc(filp->f_dentry->d_inode, cmd, fl); 8761da177e4SLinus Torvalds } 8771da177e4SLinus Torvalds 8781da177e4SLinus Torvalds struct nfs_rpc_ops nfs_v3_clientops = { 8791da177e4SLinus Torvalds .version = 3, /* protocol version */ 8801da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 881b7fa0554SAndreas Gruenbacher .dir_inode_ops = &nfs3_dir_inode_operations, 882b7fa0554SAndreas Gruenbacher .file_inode_ops = &nfs3_file_inode_operations, 8831da177e4SLinus Torvalds .getroot = nfs3_proc_get_root, 8841da177e4SLinus Torvalds .getattr = nfs3_proc_getattr, 8851da177e4SLinus Torvalds .setattr = nfs3_proc_setattr, 8861da177e4SLinus Torvalds .lookup = nfs3_proc_lookup, 8871da177e4SLinus Torvalds .access = nfs3_proc_access, 8881da177e4SLinus Torvalds .readlink = nfs3_proc_readlink, 8891da177e4SLinus Torvalds .read = nfs3_proc_read, 8901da177e4SLinus Torvalds .write = nfs3_proc_write, 8911da177e4SLinus Torvalds .commit = nfs3_proc_commit, 8921da177e4SLinus Torvalds .create = nfs3_proc_create, 8931da177e4SLinus Torvalds .remove = nfs3_proc_remove, 8941da177e4SLinus Torvalds .unlink_setup = nfs3_proc_unlink_setup, 8951da177e4SLinus Torvalds .unlink_done = nfs3_proc_unlink_done, 8961da177e4SLinus Torvalds .rename = nfs3_proc_rename, 8971da177e4SLinus Torvalds .link = nfs3_proc_link, 8981da177e4SLinus Torvalds .symlink = nfs3_proc_symlink, 8991da177e4SLinus Torvalds .mkdir = nfs3_proc_mkdir, 9001da177e4SLinus Torvalds .rmdir = nfs3_proc_rmdir, 9011da177e4SLinus Torvalds .readdir = nfs3_proc_readdir, 9021da177e4SLinus Torvalds .mknod = nfs3_proc_mknod, 9031da177e4SLinus Torvalds .statfs = nfs3_proc_statfs, 9041da177e4SLinus Torvalds .fsinfo = nfs3_proc_fsinfo, 9051da177e4SLinus Torvalds .pathconf = nfs3_proc_pathconf, 9061da177e4SLinus Torvalds .decode_dirent = nfs3_decode_dirent, 9071da177e4SLinus Torvalds .read_setup = nfs3_proc_read_setup, 9081da177e4SLinus Torvalds .write_setup = nfs3_proc_write_setup, 9091da177e4SLinus Torvalds .commit_setup = nfs3_proc_commit_setup, 9101da177e4SLinus Torvalds .file_open = nfs_open, 9111da177e4SLinus Torvalds .file_release = nfs_release, 9121da177e4SLinus Torvalds .lock = nfs3_proc_lock, 9135c6a9f7dSAndreas Gruenbacher .clear_acl_cache = nfs3_forget_cached_acls, 9141da177e4SLinus Torvalds }; 915