1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21c6dcbe5SAnna Schumaker /* 31c6dcbe5SAnna Schumaker * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com> 41c6dcbe5SAnna Schumaker */ 51c6dcbe5SAnna Schumaker #include <linux/fs.h> 60491567bSOlga Kornievskaia #include <linux/sunrpc/addr.h> 71c6dcbe5SAnna Schumaker #include <linux/sunrpc/sched.h> 81c6dcbe5SAnna Schumaker #include <linux/nfs.h> 91c6dcbe5SAnna Schumaker #include <linux/nfs3.h> 101c6dcbe5SAnna Schumaker #include <linux/nfs4.h> 111c6dcbe5SAnna Schumaker #include <linux/nfs_xdr.h> 121c6dcbe5SAnna Schumaker #include <linux/nfs_fs.h> 131c6dcbe5SAnna Schumaker #include "nfs4_fs.h" 141c6dcbe5SAnna Schumaker #include "nfs42.h" 151b4a4bd8SPeng Tao #include "iostat.h" 161b4a4bd8SPeng Tao #include "pnfs.h" 17efc6f4aaSAnna Schumaker #include "nfs4session.h" 181b4a4bd8SPeng Tao #include "internal.h" 190491567bSOlga Kornievskaia #include "delegation.h" 201b4a4bd8SPeng Tao 21291e1b94SAnna Schumaker #define NFSDBG_FACILITY NFSDBG_PROC 22c975c209SOlga Kornievskaia static int nfs42_do_offload_cancel_async(struct file *dst, nfs4_stateid *std); 231c6dcbe5SAnna Schumaker 240491567bSOlga Kornievskaia static void nfs42_set_netaddr(struct file *filep, struct nfs42_netaddr *naddr) 250491567bSOlga Kornievskaia { 260491567bSOlga Kornievskaia struct nfs_client *clp = (NFS_SERVER(file_inode(filep)))->nfs_client; 270491567bSOlga Kornievskaia unsigned short port = 2049; 280491567bSOlga Kornievskaia 290491567bSOlga Kornievskaia rcu_read_lock(); 300491567bSOlga Kornievskaia naddr->netid_len = scnprintf(naddr->netid, 310491567bSOlga Kornievskaia sizeof(naddr->netid), "%s", 320491567bSOlga Kornievskaia rpc_peeraddr2str(clp->cl_rpcclient, 330491567bSOlga Kornievskaia RPC_DISPLAY_NETID)); 340491567bSOlga Kornievskaia naddr->addr_len = scnprintf(naddr->addr, 350491567bSOlga Kornievskaia sizeof(naddr->addr), 360491567bSOlga Kornievskaia "%s.%u.%u", 370491567bSOlga Kornievskaia rpc_peeraddr2str(clp->cl_rpcclient, 380491567bSOlga Kornievskaia RPC_DISPLAY_ADDR), 390491567bSOlga Kornievskaia port >> 8, port & 255); 400491567bSOlga Kornievskaia rcu_read_unlock(); 410491567bSOlga Kornievskaia } 420491567bSOlga Kornievskaia 43f4ac1674SAnna Schumaker static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, 444bdf87ebSChristoph Hellwig struct nfs_lock_context *lock, loff_t offset, loff_t len) 45f4ac1674SAnna Schumaker { 46f4ac1674SAnna Schumaker struct inode *inode = file_inode(filep); 479a51940bSAnna Schumaker struct nfs_server *server = NFS_SERVER(inode); 48f4ac1674SAnna Schumaker struct nfs42_falloc_args args = { 49f4ac1674SAnna Schumaker .falloc_fh = NFS_FH(inode), 50f4ac1674SAnna Schumaker .falloc_offset = offset, 51f4ac1674SAnna Schumaker .falloc_length = len, 52913eca1aSAnna Schumaker .falloc_bitmask = nfs4_fattr_bitmap, 53f4ac1674SAnna Schumaker }; 549a51940bSAnna Schumaker struct nfs42_falloc_res res = { 559a51940bSAnna Schumaker .falloc_server = server, 569a51940bSAnna Schumaker }; 57f4ac1674SAnna Schumaker int status; 58f4ac1674SAnna Schumaker 59f4ac1674SAnna Schumaker msg->rpc_argp = &args; 60f4ac1674SAnna Schumaker msg->rpc_resp = &res; 61f4ac1674SAnna Schumaker 624bdf87ebSChristoph Hellwig status = nfs4_set_rw_stateid(&args.falloc_stateid, lock->open_context, 634bdf87ebSChristoph Hellwig lock, FMODE_WRITE); 64f4ac1674SAnna Schumaker if (status) 65f4ac1674SAnna Schumaker return status; 66f4ac1674SAnna Schumaker 679a51940bSAnna Schumaker res.falloc_fattr = nfs_alloc_fattr(); 689a51940bSAnna Schumaker if (!res.falloc_fattr) 699a51940bSAnna Schumaker return -ENOMEM; 709a51940bSAnna Schumaker 719a51940bSAnna Schumaker status = nfs4_call_sync(server->client, server, msg, 72f4ac1674SAnna Schumaker &args.seq_args, &res.seq_res, 0); 739a51940bSAnna Schumaker if (status == 0) 749a51940bSAnna Schumaker status = nfs_post_op_update_inode(inode, res.falloc_fattr); 759a51940bSAnna Schumaker 769a51940bSAnna Schumaker kfree(res.falloc_fattr); 779a51940bSAnna Schumaker return status; 78f4ac1674SAnna Schumaker } 79f4ac1674SAnna Schumaker 80f4ac1674SAnna Schumaker static int nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, 81f4ac1674SAnna Schumaker loff_t offset, loff_t len) 82f4ac1674SAnna Schumaker { 83f4ac1674SAnna Schumaker struct nfs_server *server = NFS_SERVER(file_inode(filep)); 84f4ac1674SAnna Schumaker struct nfs4_exception exception = { }; 854bdf87ebSChristoph Hellwig struct nfs_lock_context *lock; 86f4ac1674SAnna Schumaker int err; 87f4ac1674SAnna Schumaker 884bdf87ebSChristoph Hellwig lock = nfs_get_lock_context(nfs_file_open_context(filep)); 894bdf87ebSChristoph Hellwig if (IS_ERR(lock)) 904bdf87ebSChristoph Hellwig return PTR_ERR(lock); 914bdf87ebSChristoph Hellwig 924bdf87ebSChristoph Hellwig exception.inode = file_inode(filep); 934bdf87ebSChristoph Hellwig exception.state = lock->open_context->state; 944bdf87ebSChristoph Hellwig 95f4ac1674SAnna Schumaker do { 964bdf87ebSChristoph Hellwig err = _nfs42_proc_fallocate(msg, filep, lock, offset, len); 974bdf87ebSChristoph Hellwig if (err == -ENOTSUPP) { 984bdf87ebSChristoph Hellwig err = -EOPNOTSUPP; 994bdf87ebSChristoph Hellwig break; 1004bdf87ebSChristoph Hellwig } 101f4ac1674SAnna Schumaker err = nfs4_handle_exception(server, err, &exception); 102f4ac1674SAnna Schumaker } while (exception.retry); 103f4ac1674SAnna Schumaker 1044bdf87ebSChristoph Hellwig nfs_put_lock_context(lock); 105f4ac1674SAnna Schumaker return err; 106f4ac1674SAnna Schumaker } 107f4ac1674SAnna Schumaker 108f4ac1674SAnna Schumaker int nfs42_proc_allocate(struct file *filep, loff_t offset, loff_t len) 109f4ac1674SAnna Schumaker { 110f4ac1674SAnna Schumaker struct rpc_message msg = { 111f4ac1674SAnna Schumaker .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_ALLOCATE], 112f4ac1674SAnna Schumaker }; 113f4ac1674SAnna Schumaker struct inode *inode = file_inode(filep); 114f4ac1674SAnna Schumaker int err; 115f4ac1674SAnna Schumaker 116f4ac1674SAnna Schumaker if (!nfs_server_capable(inode, NFS_CAP_ALLOCATE)) 117f4ac1674SAnna Schumaker return -EOPNOTSUPP; 118f4ac1674SAnna Schumaker 1195955102cSAl Viro inode_lock(inode); 120f830f7ddSAnna Schumaker 121f4ac1674SAnna Schumaker err = nfs42_proc_fallocate(&msg, filep, offset, len); 122f4ac1674SAnna Schumaker if (err == -EOPNOTSUPP) 123f4ac1674SAnna Schumaker NFS_SERVER(inode)->caps &= ~NFS_CAP_ALLOCATE; 124f830f7ddSAnna Schumaker 1255955102cSAl Viro inode_unlock(inode); 126f4ac1674SAnna Schumaker return err; 127f4ac1674SAnna Schumaker } 128f4ac1674SAnna Schumaker 129624bd5b7SAnna Schumaker int nfs42_proc_deallocate(struct file *filep, loff_t offset, loff_t len) 130624bd5b7SAnna Schumaker { 131624bd5b7SAnna Schumaker struct rpc_message msg = { 132624bd5b7SAnna Schumaker .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DEALLOCATE], 133624bd5b7SAnna Schumaker }; 134624bd5b7SAnna Schumaker struct inode *inode = file_inode(filep); 135624bd5b7SAnna Schumaker int err; 136624bd5b7SAnna Schumaker 137624bd5b7SAnna Schumaker if (!nfs_server_capable(inode, NFS_CAP_DEALLOCATE)) 138624bd5b7SAnna Schumaker return -EOPNOTSUPP; 139624bd5b7SAnna Schumaker 1405955102cSAl Viro inode_lock(inode); 1411e564d3dSTrond Myklebust err = nfs_sync_inode(inode); 1421e564d3dSTrond Myklebust if (err) 1431e564d3dSTrond Myklebust goto out_unlock; 144f830f7ddSAnna Schumaker 145624bd5b7SAnna Schumaker err = nfs42_proc_fallocate(&msg, filep, offset, len); 1469a51940bSAnna Schumaker if (err == 0) 1479a51940bSAnna Schumaker truncate_pagecache_range(inode, offset, (offset + len) -1); 148624bd5b7SAnna Schumaker if (err == -EOPNOTSUPP) 149624bd5b7SAnna Schumaker NFS_SERVER(inode)->caps &= ~NFS_CAP_DEALLOCATE; 1501e564d3dSTrond Myklebust out_unlock: 1515955102cSAl Viro inode_unlock(inode); 152624bd5b7SAnna Schumaker return err; 153624bd5b7SAnna Schumaker } 154624bd5b7SAnna Schumaker 15562164f31SOlga Kornievskaia static int handle_async_copy(struct nfs42_copy_res *res, 1560e65a32cSOlga Kornievskaia struct nfs_server *dst_server, 1570e65a32cSOlga Kornievskaia struct nfs_server *src_server, 15862164f31SOlga Kornievskaia struct file *src, 15962164f31SOlga Kornievskaia struct file *dst, 1600e65a32cSOlga Kornievskaia nfs4_stateid *src_stateid, 1610e65a32cSOlga Kornievskaia bool *restart) 16262164f31SOlga Kornievskaia { 16399f2c555SOlga Kornievskaia struct nfs4_copy_state *copy, *tmp_copy; 16462164f31SOlga Kornievskaia int status = NFS4_OK; 165bc0c9079SOlga Kornievskaia bool found_pending = false; 1660e65a32cSOlga Kornievskaia struct nfs_open_context *dst_ctx = nfs_file_open_context(dst); 1670e65a32cSOlga Kornievskaia struct nfs_open_context *src_ctx = nfs_file_open_context(src); 168bc0c9079SOlga Kornievskaia 16999f2c555SOlga Kornievskaia copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_NOFS); 17099f2c555SOlga Kornievskaia if (!copy) 17199f2c555SOlga Kornievskaia return -ENOMEM; 17299f2c555SOlga Kornievskaia 1730e65a32cSOlga Kornievskaia spin_lock(&dst_server->nfs_client->cl_lock); 1740e65a32cSOlga Kornievskaia list_for_each_entry(tmp_copy, 1750e65a32cSOlga Kornievskaia &dst_server->nfs_client->pending_cb_stateids, 176bc0c9079SOlga Kornievskaia copies) { 17799f2c555SOlga Kornievskaia if (memcmp(&res->write_res.stateid, &tmp_copy->stateid, 178bc0c9079SOlga Kornievskaia NFS4_STATEID_SIZE)) 179bc0c9079SOlga Kornievskaia continue; 180bc0c9079SOlga Kornievskaia found_pending = true; 18199f2c555SOlga Kornievskaia list_del(&tmp_copy->copies); 182bc0c9079SOlga Kornievskaia break; 183bc0c9079SOlga Kornievskaia } 184bc0c9079SOlga Kornievskaia if (found_pending) { 1850e65a32cSOlga Kornievskaia spin_unlock(&dst_server->nfs_client->cl_lock); 18699f2c555SOlga Kornievskaia kfree(copy); 18799f2c555SOlga Kornievskaia copy = tmp_copy; 188bc0c9079SOlga Kornievskaia goto out; 189bc0c9079SOlga Kornievskaia } 19062164f31SOlga Kornievskaia 19162164f31SOlga Kornievskaia memcpy(©->stateid, &res->write_res.stateid, NFS4_STATEID_SIZE); 19262164f31SOlga Kornievskaia init_completion(©->completion); 1930e65a32cSOlga Kornievskaia copy->parent_dst_state = dst_ctx->state; 1940e65a32cSOlga Kornievskaia copy->parent_src_state = src_ctx->state; 19562164f31SOlga Kornievskaia 1960e65a32cSOlga Kornievskaia list_add_tail(©->copies, &dst_server->ss_copies); 1970e65a32cSOlga Kornievskaia spin_unlock(&dst_server->nfs_client->cl_lock); 1980e65a32cSOlga Kornievskaia 1990e65a32cSOlga Kornievskaia if (dst_server != src_server) { 2000e65a32cSOlga Kornievskaia spin_lock(&src_server->nfs_client->cl_lock); 2010e65a32cSOlga Kornievskaia list_add_tail(©->src_copies, &src_server->ss_copies); 2020e65a32cSOlga Kornievskaia spin_unlock(&src_server->nfs_client->cl_lock); 2030e65a32cSOlga Kornievskaia } 20462164f31SOlga Kornievskaia 205c975c209SOlga Kornievskaia status = wait_for_completion_interruptible(©->completion); 2060e65a32cSOlga Kornievskaia spin_lock(&dst_server->nfs_client->cl_lock); 20762164f31SOlga Kornievskaia list_del_init(©->copies); 2080e65a32cSOlga Kornievskaia spin_unlock(&dst_server->nfs_client->cl_lock); 2090e65a32cSOlga Kornievskaia if (dst_server != src_server) { 2100e65a32cSOlga Kornievskaia spin_lock(&src_server->nfs_client->cl_lock); 2110e65a32cSOlga Kornievskaia list_del_init(©->src_copies); 2120e65a32cSOlga Kornievskaia spin_unlock(&src_server->nfs_client->cl_lock); 2130e65a32cSOlga Kornievskaia } 214c975c209SOlga Kornievskaia if (status == -ERESTARTSYS) { 215e4648aa4SOlga Kornievskaia goto out_cancel; 2160e65a32cSOlga Kornievskaia } else if (copy->flags || copy->error == NFS4ERR_PARTNER_NO_AUTH) { 217e4648aa4SOlga Kornievskaia status = -EAGAIN; 2180e65a32cSOlga Kornievskaia *restart = true; 219e4648aa4SOlga Kornievskaia goto out_cancel; 220c975c209SOlga Kornievskaia } 221bc0c9079SOlga Kornievskaia out: 22262164f31SOlga Kornievskaia res->write_res.count = copy->count; 22362164f31SOlga Kornievskaia memcpy(&res->write_res.verifier, ©->verf, sizeof(copy->verf)); 22462164f31SOlga Kornievskaia status = -copy->error; 22562164f31SOlga Kornievskaia 22612406025SOlga Kornievskaia out_free: 22762164f31SOlga Kornievskaia kfree(copy); 22862164f31SOlga Kornievskaia return status; 229e4648aa4SOlga Kornievskaia out_cancel: 230e4648aa4SOlga Kornievskaia nfs42_do_offload_cancel_async(dst, ©->stateid); 23112406025SOlga Kornievskaia if (!nfs42_files_from_same_server(src, dst)) 23212406025SOlga Kornievskaia nfs42_do_offload_cancel_async(src, src_stateid); 23312406025SOlga Kornievskaia goto out_free; 23462164f31SOlga Kornievskaia } 23562164f31SOlga Kornievskaia 2366b8d84e2SOlga Kornievskaia static int process_copy_commit(struct file *dst, loff_t pos_dst, 2376b8d84e2SOlga Kornievskaia struct nfs42_copy_res *res) 2386b8d84e2SOlga Kornievskaia { 2396b8d84e2SOlga Kornievskaia struct nfs_commitres cres; 2406b8d84e2SOlga Kornievskaia int status = -ENOMEM; 2416b8d84e2SOlga Kornievskaia 2426b8d84e2SOlga Kornievskaia cres.verf = kzalloc(sizeof(struct nfs_writeverf), GFP_NOFS); 2436b8d84e2SOlga Kornievskaia if (!cres.verf) 2446b8d84e2SOlga Kornievskaia goto out; 2456b8d84e2SOlga Kornievskaia 2466b8d84e2SOlga Kornievskaia status = nfs4_proc_commit(dst, pos_dst, res->write_res.count, &cres); 2476b8d84e2SOlga Kornievskaia if (status) 2486b8d84e2SOlga Kornievskaia goto out_free; 2496b8d84e2SOlga Kornievskaia if (nfs_write_verifier_cmp(&res->write_res.verifier.verifier, 2506b8d84e2SOlga Kornievskaia &cres.verf->verifier)) { 2516b8d84e2SOlga Kornievskaia dprintk("commit verf differs from copy verf\n"); 2526b8d84e2SOlga Kornievskaia status = -EAGAIN; 2536b8d84e2SOlga Kornievskaia } 2546b8d84e2SOlga Kornievskaia out_free: 2556b8d84e2SOlga Kornievskaia kfree(cres.verf); 2566b8d84e2SOlga Kornievskaia out: 2576b8d84e2SOlga Kornievskaia return status; 2586b8d84e2SOlga Kornievskaia } 2596b8d84e2SOlga Kornievskaia 2609d8cacbfSTrond Myklebust static ssize_t _nfs42_proc_copy(struct file *src, 2612e72448bSAnna Schumaker struct nfs_lock_context *src_lock, 2629d8cacbfSTrond Myklebust struct file *dst, 2632e72448bSAnna Schumaker struct nfs_lock_context *dst_lock, 2649d8cacbfSTrond Myklebust struct nfs42_copy_args *args, 2651d38f3f0SOlga Kornievskaia struct nfs42_copy_res *res, 2661d38f3f0SOlga Kornievskaia struct nl4_server *nss, 2670e65a32cSOlga Kornievskaia nfs4_stateid *cnr_stateid, 2680e65a32cSOlga Kornievskaia bool *restart) 2692e72448bSAnna Schumaker { 2702e72448bSAnna Schumaker struct rpc_message msg = { 2712e72448bSAnna Schumaker .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COPY], 2729d8cacbfSTrond Myklebust .rpc_argp = args, 2739d8cacbfSTrond Myklebust .rpc_resp = res, 2742e72448bSAnna Schumaker }; 2752e72448bSAnna Schumaker struct inode *dst_inode = file_inode(dst); 2760e65a32cSOlga Kornievskaia struct inode *src_inode = file_inode(src); 2770e65a32cSOlga Kornievskaia struct nfs_server *dst_server = NFS_SERVER(dst_inode); 2780e65a32cSOlga Kornievskaia struct nfs_server *src_server = NFS_SERVER(src_inode); 2799d8cacbfSTrond Myklebust loff_t pos_src = args->src_pos; 2809d8cacbfSTrond Myklebust loff_t pos_dst = args->dst_pos; 2819d8cacbfSTrond Myklebust size_t count = args->count; 2821ee48bddSOlga Kornievskaia ssize_t status; 2832e72448bSAnna Schumaker 2841d38f3f0SOlga Kornievskaia if (nss) { 2851d38f3f0SOlga Kornievskaia args->cp_src = nss; 2861d38f3f0SOlga Kornievskaia nfs4_stateid_copy(&args->src_stateid, cnr_stateid); 2871d38f3f0SOlga Kornievskaia } else { 2881d38f3f0SOlga Kornievskaia status = nfs4_set_rw_stateid(&args->src_stateid, 2891d38f3f0SOlga Kornievskaia src_lock->open_context, src_lock, FMODE_READ); 2902e72448bSAnna Schumaker if (status) 2912e72448bSAnna Schumaker return status; 2921d38f3f0SOlga Kornievskaia } 293837bb1d7STrond Myklebust status = nfs_filemap_write_and_wait_range(file_inode(src)->i_mapping, 294837bb1d7STrond Myklebust pos_src, pos_src + (loff_t)count - 1); 295837bb1d7STrond Myklebust if (status) 296837bb1d7STrond Myklebust return status; 297837bb1d7STrond Myklebust 2989d8cacbfSTrond Myklebust status = nfs4_set_rw_stateid(&args->dst_stateid, dst_lock->open_context, 2992e72448bSAnna Schumaker dst_lock, FMODE_WRITE); 3002e72448bSAnna Schumaker if (status) 3012e72448bSAnna Schumaker return status; 3022e72448bSAnna Schumaker 303837bb1d7STrond Myklebust status = nfs_sync_inode(dst_inode); 304837bb1d7STrond Myklebust if (status) 305837bb1d7STrond Myklebust return status; 306837bb1d7STrond Myklebust 30762164f31SOlga Kornievskaia res->commit_res.verf = NULL; 30862164f31SOlga Kornievskaia if (args->sync) { 30962164f31SOlga Kornievskaia res->commit_res.verf = 31062164f31SOlga Kornievskaia kzalloc(sizeof(struct nfs_writeverf), GFP_NOFS); 311e0926934SOlga Kornievskaia if (!res->commit_res.verf) 312e0926934SOlga Kornievskaia return -ENOMEM; 31362164f31SOlga Kornievskaia } 3140e65a32cSOlga Kornievskaia set_bit(NFS_CLNT_SRC_SSC_COPY_STATE, 3150e65a32cSOlga Kornievskaia &src_lock->open_context->state->flags); 316e4648aa4SOlga Kornievskaia set_bit(NFS_CLNT_DST_SSC_COPY_STATE, 317e4648aa4SOlga Kornievskaia &dst_lock->open_context->state->flags); 318e4648aa4SOlga Kornievskaia 3190e65a32cSOlga Kornievskaia status = nfs4_call_sync(dst_server->client, dst_server, &msg, 3209d8cacbfSTrond Myklebust &args->seq_args, &res->seq_res, 0); 3212e72448bSAnna Schumaker if (status == -ENOTSUPP) 3220e65a32cSOlga Kornievskaia dst_server->caps &= ~NFS_CAP_COPY; 3232e72448bSAnna Schumaker if (status) 324e0926934SOlga Kornievskaia goto out; 3252e72448bSAnna Schumaker 32662164f31SOlga Kornievskaia if (args->sync && 32762164f31SOlga Kornievskaia nfs_write_verifier_cmp(&res->write_res.verifier.verifier, 328e0926934SOlga Kornievskaia &res->commit_res.verf->verifier)) { 329e0926934SOlga Kornievskaia status = -EAGAIN; 330e0926934SOlga Kornievskaia goto out; 3312e72448bSAnna Schumaker } 3322e72448bSAnna Schumaker 33362164f31SOlga Kornievskaia if (!res->synchronous) { 3340e65a32cSOlga Kornievskaia status = handle_async_copy(res, dst_server, src_server, src, 3350e65a32cSOlga Kornievskaia dst, &args->src_stateid, restart); 33662164f31SOlga Kornievskaia if (status) 33762164f31SOlga Kornievskaia return status; 33862164f31SOlga Kornievskaia } 33962164f31SOlga Kornievskaia 3406b8d84e2SOlga Kornievskaia if ((!res->synchronous || !args->sync) && 3416b8d84e2SOlga Kornievskaia res->write_res.verifier.committed != NFS_FILE_SYNC) { 3426b8d84e2SOlga Kornievskaia status = process_copy_commit(dst, pos_dst, res); 3436b8d84e2SOlga Kornievskaia if (status) 3446b8d84e2SOlga Kornievskaia return status; 3456b8d84e2SOlga Kornievskaia } 3466b8d84e2SOlga Kornievskaia 3472e72448bSAnna Schumaker truncate_pagecache_range(dst_inode, pos_dst, 3489d8cacbfSTrond Myklebust pos_dst + res->write_res.count); 3492e72448bSAnna Schumaker 350e0926934SOlga Kornievskaia status = res->write_res.count; 351e0926934SOlga Kornievskaia out: 35262164f31SOlga Kornievskaia if (args->sync) 353e0926934SOlga Kornievskaia kfree(res->commit_res.verf); 354e0926934SOlga Kornievskaia return status; 3552e72448bSAnna Schumaker } 3562e72448bSAnna Schumaker 3572e72448bSAnna Schumaker ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src, 3581d38f3f0SOlga Kornievskaia struct file *dst, loff_t pos_dst, size_t count, 3591d38f3f0SOlga Kornievskaia struct nl4_server *nss, 36012751010SOlga Kornievskaia nfs4_stateid *cnr_stateid, bool sync) 3612e72448bSAnna Schumaker { 3622e72448bSAnna Schumaker struct nfs_server *server = NFS_SERVER(file_inode(dst)); 3632e72448bSAnna Schumaker struct nfs_lock_context *src_lock; 3642e72448bSAnna Schumaker struct nfs_lock_context *dst_lock; 3659d8cacbfSTrond Myklebust struct nfs42_copy_args args = { 3669d8cacbfSTrond Myklebust .src_fh = NFS_FH(file_inode(src)), 3679d8cacbfSTrond Myklebust .src_pos = pos_src, 3689d8cacbfSTrond Myklebust .dst_fh = NFS_FH(file_inode(dst)), 3699d8cacbfSTrond Myklebust .dst_pos = pos_dst, 3709d8cacbfSTrond Myklebust .count = count, 37112751010SOlga Kornievskaia .sync = sync, 3729d8cacbfSTrond Myklebust }; 3739d8cacbfSTrond Myklebust struct nfs42_copy_res res; 3749d8cacbfSTrond Myklebust struct nfs4_exception src_exception = { 3759d8cacbfSTrond Myklebust .inode = file_inode(src), 3769d8cacbfSTrond Myklebust .stateid = &args.src_stateid, 3779d8cacbfSTrond Myklebust }; 3789d8cacbfSTrond Myklebust struct nfs4_exception dst_exception = { 3799d8cacbfSTrond Myklebust .inode = file_inode(dst), 3809d8cacbfSTrond Myklebust .stateid = &args.dst_stateid, 3819d8cacbfSTrond Myklebust }; 3822e72448bSAnna Schumaker ssize_t err, err2; 3830e65a32cSOlga Kornievskaia bool restart = false; 3842e72448bSAnna Schumaker 3852e72448bSAnna Schumaker src_lock = nfs_get_lock_context(nfs_file_open_context(src)); 3862e72448bSAnna Schumaker if (IS_ERR(src_lock)) 3872e72448bSAnna Schumaker return PTR_ERR(src_lock); 3882e72448bSAnna Schumaker 3892e72448bSAnna Schumaker src_exception.state = src_lock->open_context->state; 3902e72448bSAnna Schumaker 3912e72448bSAnna Schumaker dst_lock = nfs_get_lock_context(nfs_file_open_context(dst)); 3922e72448bSAnna Schumaker if (IS_ERR(dst_lock)) { 3932e72448bSAnna Schumaker err = PTR_ERR(dst_lock); 3942e72448bSAnna Schumaker goto out_put_src_lock; 3952e72448bSAnna Schumaker } 3962e72448bSAnna Schumaker 3972e72448bSAnna Schumaker dst_exception.state = dst_lock->open_context->state; 3982e72448bSAnna Schumaker 3992e72448bSAnna Schumaker do { 400ea8ea737SLinus Torvalds inode_lock(file_inode(dst)); 4019d8cacbfSTrond Myklebust err = _nfs42_proc_copy(src, src_lock, 4029d8cacbfSTrond Myklebust dst, dst_lock, 4031d38f3f0SOlga Kornievskaia &args, &res, 4040e65a32cSOlga Kornievskaia nss, cnr_stateid, &restart); 405ea8ea737SLinus Torvalds inode_unlock(file_inode(dst)); 4062e72448bSAnna Schumaker 4079d8cacbfSTrond Myklebust if (err >= 0) 4089d8cacbfSTrond Myklebust break; 40912406025SOlga Kornievskaia if (err == -ENOTSUPP && 41012406025SOlga Kornievskaia nfs42_files_from_same_server(src, dst)) { 4112e72448bSAnna Schumaker err = -EOPNOTSUPP; 4122e72448bSAnna Schumaker break; 413539f57b3SOlga Kornievskaia } else if (err == -EAGAIN) { 4140e65a32cSOlga Kornievskaia if (!restart) { 415539f57b3SOlga Kornievskaia dst_exception.retry = 1; 416539f57b3SOlga Kornievskaia continue; 4170e65a32cSOlga Kornievskaia } 4180e65a32cSOlga Kornievskaia break; 419539f57b3SOlga Kornievskaia } else if (err == -NFS4ERR_OFFLOAD_NO_REQS && !args.sync) { 420539f57b3SOlga Kornievskaia args.sync = true; 421e0926934SOlga Kornievskaia dst_exception.retry = 1; 422e0926934SOlga Kornievskaia continue; 4236b61c969SOlga Kornievskaia } else if ((err == -ESTALE || 42412406025SOlga Kornievskaia err == -NFS4ERR_OFFLOAD_DENIED || 42512406025SOlga Kornievskaia err == -ENOTSUPP) && 4267e350197SOlga Kornievskaia !nfs42_files_from_same_server(src, dst)) { 4277e350197SOlga Kornievskaia nfs42_do_offload_cancel_async(src, &args.src_stateid); 4287e350197SOlga Kornievskaia err = -EOPNOTSUPP; 4297e350197SOlga Kornievskaia break; 4302e72448bSAnna Schumaker } 4312e72448bSAnna Schumaker 4322e72448bSAnna Schumaker err2 = nfs4_handle_exception(server, err, &src_exception); 4332e72448bSAnna Schumaker err = nfs4_handle_exception(server, err, &dst_exception); 4342e72448bSAnna Schumaker if (!err) 4352e72448bSAnna Schumaker err = err2; 4362e72448bSAnna Schumaker } while (src_exception.retry || dst_exception.retry); 4372e72448bSAnna Schumaker 4382e72448bSAnna Schumaker nfs_put_lock_context(dst_lock); 4392e72448bSAnna Schumaker out_put_src_lock: 4402e72448bSAnna Schumaker nfs_put_lock_context(src_lock); 4412e72448bSAnna Schumaker return err; 4422e72448bSAnna Schumaker } 4432e72448bSAnna Schumaker 444c975c209SOlga Kornievskaia struct nfs42_offloadcancel_data { 445c975c209SOlga Kornievskaia struct nfs_server *seq_server; 446c975c209SOlga Kornievskaia struct nfs42_offload_status_args args; 447c975c209SOlga Kornievskaia struct nfs42_offload_status_res res; 448c975c209SOlga Kornievskaia }; 449c975c209SOlga Kornievskaia 450c975c209SOlga Kornievskaia static void nfs42_offload_cancel_prepare(struct rpc_task *task, void *calldata) 451c975c209SOlga Kornievskaia { 452c975c209SOlga Kornievskaia struct nfs42_offloadcancel_data *data = calldata; 453c975c209SOlga Kornievskaia 454c975c209SOlga Kornievskaia nfs4_setup_sequence(data->seq_server->nfs_client, 455c975c209SOlga Kornievskaia &data->args.osa_seq_args, 456c975c209SOlga Kornievskaia &data->res.osr_seq_res, task); 457c975c209SOlga Kornievskaia } 458c975c209SOlga Kornievskaia 459c975c209SOlga Kornievskaia static void nfs42_offload_cancel_done(struct rpc_task *task, void *calldata) 460c975c209SOlga Kornievskaia { 461c975c209SOlga Kornievskaia struct nfs42_offloadcancel_data *data = calldata; 462c975c209SOlga Kornievskaia 463c975c209SOlga Kornievskaia nfs41_sequence_done(task, &data->res.osr_seq_res); 464c975c209SOlga Kornievskaia if (task->tk_status && 465c975c209SOlga Kornievskaia nfs4_async_handle_error(task, data->seq_server, NULL, 466c975c209SOlga Kornievskaia NULL) == -EAGAIN) 467c975c209SOlga Kornievskaia rpc_restart_call_prepare(task); 468c975c209SOlga Kornievskaia } 469c975c209SOlga Kornievskaia 470c975c209SOlga Kornievskaia static void nfs42_free_offloadcancel_data(void *data) 471c975c209SOlga Kornievskaia { 472c975c209SOlga Kornievskaia kfree(data); 473c975c209SOlga Kornievskaia } 474c975c209SOlga Kornievskaia 475c975c209SOlga Kornievskaia static const struct rpc_call_ops nfs42_offload_cancel_ops = { 476c975c209SOlga Kornievskaia .rpc_call_prepare = nfs42_offload_cancel_prepare, 477c975c209SOlga Kornievskaia .rpc_call_done = nfs42_offload_cancel_done, 478c975c209SOlga Kornievskaia .rpc_release = nfs42_free_offloadcancel_data, 479c975c209SOlga Kornievskaia }; 480c975c209SOlga Kornievskaia 481c975c209SOlga Kornievskaia static int nfs42_do_offload_cancel_async(struct file *dst, 482c975c209SOlga Kornievskaia nfs4_stateid *stateid) 483c975c209SOlga Kornievskaia { 484c975c209SOlga Kornievskaia struct nfs_server *dst_server = NFS_SERVER(file_inode(dst)); 485c975c209SOlga Kornievskaia struct nfs42_offloadcancel_data *data = NULL; 486c975c209SOlga Kornievskaia struct nfs_open_context *ctx = nfs_file_open_context(dst); 487c975c209SOlga Kornievskaia struct rpc_task *task; 488c975c209SOlga Kornievskaia struct rpc_message msg = { 489c975c209SOlga Kornievskaia .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OFFLOAD_CANCEL], 490c975c209SOlga Kornievskaia .rpc_cred = ctx->cred, 491c975c209SOlga Kornievskaia }; 492c975c209SOlga Kornievskaia struct rpc_task_setup task_setup_data = { 493c975c209SOlga Kornievskaia .rpc_client = dst_server->client, 494c975c209SOlga Kornievskaia .rpc_message = &msg, 495c975c209SOlga Kornievskaia .callback_ops = &nfs42_offload_cancel_ops, 496c975c209SOlga Kornievskaia .workqueue = nfsiod_workqueue, 497c975c209SOlga Kornievskaia .flags = RPC_TASK_ASYNC, 498c975c209SOlga Kornievskaia }; 499c975c209SOlga Kornievskaia int status; 500c975c209SOlga Kornievskaia 501c975c209SOlga Kornievskaia if (!(dst_server->caps & NFS_CAP_OFFLOAD_CANCEL)) 502c975c209SOlga Kornievskaia return -EOPNOTSUPP; 503c975c209SOlga Kornievskaia 504c975c209SOlga Kornievskaia data = kzalloc(sizeof(struct nfs42_offloadcancel_data), GFP_NOFS); 505c975c209SOlga Kornievskaia if (data == NULL) 506c975c209SOlga Kornievskaia return -ENOMEM; 507c975c209SOlga Kornievskaia 508c975c209SOlga Kornievskaia data->seq_server = dst_server; 509c975c209SOlga Kornievskaia data->args.osa_src_fh = NFS_FH(file_inode(dst)); 510c975c209SOlga Kornievskaia memcpy(&data->args.osa_stateid, stateid, 511c975c209SOlga Kornievskaia sizeof(data->args.osa_stateid)); 512c975c209SOlga Kornievskaia msg.rpc_argp = &data->args; 513c975c209SOlga Kornievskaia msg.rpc_resp = &data->res; 514c975c209SOlga Kornievskaia task_setup_data.callback_data = data; 515c975c209SOlga Kornievskaia nfs4_init_sequence(&data->args.osa_seq_args, &data->res.osr_seq_res, 516c975c209SOlga Kornievskaia 1, 0); 517c975c209SOlga Kornievskaia task = rpc_run_task(&task_setup_data); 518c975c209SOlga Kornievskaia if (IS_ERR(task)) 519c975c209SOlga Kornievskaia return PTR_ERR(task); 520c975c209SOlga Kornievskaia status = rpc_wait_for_completion_task(task); 521c975c209SOlga Kornievskaia if (status == -ENOTSUPP) 522c975c209SOlga Kornievskaia dst_server->caps &= ~NFS_CAP_OFFLOAD_CANCEL; 523c975c209SOlga Kornievskaia rpc_put_task(task); 524c975c209SOlga Kornievskaia return status; 525c975c209SOlga Kornievskaia } 526c975c209SOlga Kornievskaia 5270491567bSOlga Kornievskaia int _nfs42_proc_copy_notify(struct file *src, struct file *dst, 5280491567bSOlga Kornievskaia struct nfs42_copy_notify_args *args, 5290491567bSOlga Kornievskaia struct nfs42_copy_notify_res *res) 5300491567bSOlga Kornievskaia { 5310491567bSOlga Kornievskaia struct nfs_server *src_server = NFS_SERVER(file_inode(src)); 5320491567bSOlga Kornievskaia struct rpc_message msg = { 5330491567bSOlga Kornievskaia .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_COPY_NOTIFY], 5340491567bSOlga Kornievskaia .rpc_argp = args, 5350491567bSOlga Kornievskaia .rpc_resp = res, 5360491567bSOlga Kornievskaia }; 5370491567bSOlga Kornievskaia int status; 5380491567bSOlga Kornievskaia struct nfs_open_context *ctx; 5390491567bSOlga Kornievskaia struct nfs_lock_context *l_ctx; 5400491567bSOlga Kornievskaia 5410491567bSOlga Kornievskaia ctx = get_nfs_open_context(nfs_file_open_context(src)); 5420491567bSOlga Kornievskaia l_ctx = nfs_get_lock_context(ctx); 5430491567bSOlga Kornievskaia if (IS_ERR(l_ctx)) 5440491567bSOlga Kornievskaia return PTR_ERR(l_ctx); 5450491567bSOlga Kornievskaia 5460491567bSOlga Kornievskaia status = nfs4_set_rw_stateid(&args->cna_src_stateid, ctx, l_ctx, 5470491567bSOlga Kornievskaia FMODE_READ); 5480491567bSOlga Kornievskaia nfs_put_lock_context(l_ctx); 5490491567bSOlga Kornievskaia if (status) 5500491567bSOlga Kornievskaia return status; 5510491567bSOlga Kornievskaia 5520491567bSOlga Kornievskaia status = nfs4_call_sync(src_server->client, src_server, &msg, 5530491567bSOlga Kornievskaia &args->cna_seq_args, &res->cnr_seq_res, 0); 5540491567bSOlga Kornievskaia if (status == -ENOTSUPP) 5550491567bSOlga Kornievskaia src_server->caps &= ~NFS_CAP_COPY_NOTIFY; 5560491567bSOlga Kornievskaia 5570491567bSOlga Kornievskaia put_nfs_open_context(nfs_file_open_context(src)); 5580491567bSOlga Kornievskaia return status; 5590491567bSOlga Kornievskaia } 5600491567bSOlga Kornievskaia 5610491567bSOlga Kornievskaia int nfs42_proc_copy_notify(struct file *src, struct file *dst, 5620491567bSOlga Kornievskaia struct nfs42_copy_notify_res *res) 5630491567bSOlga Kornievskaia { 5640491567bSOlga Kornievskaia struct nfs_server *src_server = NFS_SERVER(file_inode(src)); 5650491567bSOlga Kornievskaia struct nfs42_copy_notify_args *args; 5660491567bSOlga Kornievskaia struct nfs4_exception exception = { 5670491567bSOlga Kornievskaia .inode = file_inode(src), 5680491567bSOlga Kornievskaia }; 5690491567bSOlga Kornievskaia int status; 5700491567bSOlga Kornievskaia 5710491567bSOlga Kornievskaia if (!(src_server->caps & NFS_CAP_COPY_NOTIFY)) 5720491567bSOlga Kornievskaia return -EOPNOTSUPP; 5730491567bSOlga Kornievskaia 5740491567bSOlga Kornievskaia args = kzalloc(sizeof(struct nfs42_copy_notify_args), GFP_NOFS); 5750491567bSOlga Kornievskaia if (args == NULL) 5760491567bSOlga Kornievskaia return -ENOMEM; 5770491567bSOlga Kornievskaia 5780491567bSOlga Kornievskaia args->cna_src_fh = NFS_FH(file_inode(src)), 5790491567bSOlga Kornievskaia args->cna_dst.nl4_type = NL4_NETADDR; 5800491567bSOlga Kornievskaia nfs42_set_netaddr(dst, &args->cna_dst.u.nl4_addr); 5810491567bSOlga Kornievskaia exception.stateid = &args->cna_src_stateid; 5820491567bSOlga Kornievskaia 5830491567bSOlga Kornievskaia do { 5840491567bSOlga Kornievskaia status = _nfs42_proc_copy_notify(src, dst, args, res); 5850491567bSOlga Kornievskaia if (status == -ENOTSUPP) { 5860491567bSOlga Kornievskaia status = -EOPNOTSUPP; 5870491567bSOlga Kornievskaia goto out; 5880491567bSOlga Kornievskaia } 5890491567bSOlga Kornievskaia status = nfs4_handle_exception(src_server, status, &exception); 5900491567bSOlga Kornievskaia } while (exception.retry); 5910491567bSOlga Kornievskaia 5920491567bSOlga Kornievskaia out: 5930491567bSOlga Kornievskaia kfree(args); 5940491567bSOlga Kornievskaia return status; 5950491567bSOlga Kornievskaia } 5960491567bSOlga Kornievskaia 5974bdf87ebSChristoph Hellwig static loff_t _nfs42_proc_llseek(struct file *filep, 5984bdf87ebSChristoph Hellwig struct nfs_lock_context *lock, loff_t offset, int whence) 5991c6dcbe5SAnna Schumaker { 6001c6dcbe5SAnna Schumaker struct inode *inode = file_inode(filep); 6011c6dcbe5SAnna Schumaker struct nfs42_seek_args args = { 6021c6dcbe5SAnna Schumaker .sa_fh = NFS_FH(inode), 6031c6dcbe5SAnna Schumaker .sa_offset = offset, 6041c6dcbe5SAnna Schumaker .sa_what = (whence == SEEK_HOLE) ? 6051c6dcbe5SAnna Schumaker NFS4_CONTENT_HOLE : NFS4_CONTENT_DATA, 6061c6dcbe5SAnna Schumaker }; 6071c6dcbe5SAnna Schumaker struct nfs42_seek_res res; 6081c6dcbe5SAnna Schumaker struct rpc_message msg = { 6091c6dcbe5SAnna Schumaker .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEEK], 6101c6dcbe5SAnna Schumaker .rpc_argp = &args, 6111c6dcbe5SAnna Schumaker .rpc_resp = &res, 6121c6dcbe5SAnna Schumaker }; 6131c6dcbe5SAnna Schumaker struct nfs_server *server = NFS_SERVER(inode); 6141c6dcbe5SAnna Schumaker int status; 6151c6dcbe5SAnna Schumaker 616878ffa9fSAnna Schumaker if (!nfs_server_capable(inode, NFS_CAP_SEEK)) 6171c6dcbe5SAnna Schumaker return -ENOTSUPP; 6181c6dcbe5SAnna Schumaker 6194bdf87ebSChristoph Hellwig status = nfs4_set_rw_stateid(&args.sa_stateid, lock->open_context, 6204bdf87ebSChristoph Hellwig lock, FMODE_READ); 6211c6dcbe5SAnna Schumaker if (status) 6221c6dcbe5SAnna Schumaker return status; 6231c6dcbe5SAnna Schumaker 624e95fc4a0STrond Myklebust status = nfs_filemap_write_and_wait_range(inode->i_mapping, 625e95fc4a0STrond Myklebust offset, LLONG_MAX); 626e95fc4a0STrond Myklebust if (status) 627e95fc4a0STrond Myklebust return status; 628e95fc4a0STrond Myklebust 6291c6dcbe5SAnna Schumaker status = nfs4_call_sync(server->client, server, &msg, 6301c6dcbe5SAnna Schumaker &args.seq_args, &res.seq_res, 0); 6311c6dcbe5SAnna Schumaker if (status == -ENOTSUPP) 6321c6dcbe5SAnna Schumaker server->caps &= ~NFS_CAP_SEEK; 6331c6dcbe5SAnna Schumaker if (status) 6341c6dcbe5SAnna Schumaker return status; 6351c6dcbe5SAnna Schumaker 6361c6dcbe5SAnna Schumaker return vfs_setpos(filep, res.sr_offset, inode->i_sb->s_maxbytes); 6371c6dcbe5SAnna Schumaker } 638be3a5d23STrond Myklebust 639bdcc2cd1SJ. Bruce Fields loff_t nfs42_proc_llseek(struct file *filep, loff_t offset, int whence) 640bdcc2cd1SJ. Bruce Fields { 641bdcc2cd1SJ. Bruce Fields struct nfs_server *server = NFS_SERVER(file_inode(filep)); 642bdcc2cd1SJ. Bruce Fields struct nfs4_exception exception = { }; 6434bdf87ebSChristoph Hellwig struct nfs_lock_context *lock; 644306a5549SJ. Bruce Fields loff_t err; 645bdcc2cd1SJ. Bruce Fields 6464bdf87ebSChristoph Hellwig lock = nfs_get_lock_context(nfs_file_open_context(filep)); 6474bdf87ebSChristoph Hellwig if (IS_ERR(lock)) 6484bdf87ebSChristoph Hellwig return PTR_ERR(lock); 6494bdf87ebSChristoph Hellwig 6504bdf87ebSChristoph Hellwig exception.inode = file_inode(filep); 6514bdf87ebSChristoph Hellwig exception.state = lock->open_context->state; 6524bdf87ebSChristoph Hellwig 653bdcc2cd1SJ. Bruce Fields do { 6544bdf87ebSChristoph Hellwig err = _nfs42_proc_llseek(filep, lock, offset, whence); 655306a5549SJ. Bruce Fields if (err >= 0) 656306a5549SJ. Bruce Fields break; 6574bdf87ebSChristoph Hellwig if (err == -ENOTSUPP) { 6584bdf87ebSChristoph Hellwig err = -EOPNOTSUPP; 6594bdf87ebSChristoph Hellwig break; 6604bdf87ebSChristoph Hellwig } 661bdcc2cd1SJ. Bruce Fields err = nfs4_handle_exception(server, err, &exception); 662bdcc2cd1SJ. Bruce Fields } while (exception.retry); 663bdcc2cd1SJ. Bruce Fields 6644bdf87ebSChristoph Hellwig nfs_put_lock_context(lock); 665bdcc2cd1SJ. Bruce Fields return err; 666bdcc2cd1SJ. Bruce Fields } 667bdcc2cd1SJ. Bruce Fields 668bdcc2cd1SJ. Bruce Fields 6691b4a4bd8SPeng Tao static void 6701b4a4bd8SPeng Tao nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata) 6711b4a4bd8SPeng Tao { 6721b4a4bd8SPeng Tao struct nfs42_layoutstat_data *data = calldata; 6739a0fe867STrond Myklebust struct inode *inode = data->inode; 6749a0fe867STrond Myklebust struct nfs_server *server = NFS_SERVER(inode); 6759a0fe867STrond Myklebust struct pnfs_layout_hdr *lo; 6761b4a4bd8SPeng Tao 6779a0fe867STrond Myklebust spin_lock(&inode->i_lock); 6789a0fe867STrond Myklebust lo = NFS_I(inode)->layout; 6799a0fe867STrond Myklebust if (!pnfs_layout_is_valid(lo)) { 6809a0fe867STrond Myklebust spin_unlock(&inode->i_lock); 6819a0fe867STrond Myklebust rpc_exit(task, 0); 6829a0fe867STrond Myklebust return; 6839a0fe867STrond Myklebust } 6849a0fe867STrond Myklebust nfs4_stateid_copy(&data->args.stateid, &lo->plh_stateid); 6859a0fe867STrond Myklebust spin_unlock(&inode->i_lock); 6866de7e12fSAnna Schumaker nfs4_setup_sequence(server->nfs_client, &data->args.seq_args, 6876de7e12fSAnna Schumaker &data->res.seq_res, task); 6881b4a4bd8SPeng Tao } 6891b4a4bd8SPeng Tao 6901b4a4bd8SPeng Tao static void 6911b4a4bd8SPeng Tao nfs42_layoutstat_done(struct rpc_task *task, void *calldata) 6921b4a4bd8SPeng Tao { 6931b4a4bd8SPeng Tao struct nfs42_layoutstat_data *data = calldata; 69468d264cfSPeng Tao struct inode *inode = data->inode; 69568d264cfSPeng Tao struct pnfs_layout_hdr *lo; 6961b4a4bd8SPeng Tao 6971b4a4bd8SPeng Tao if (!nfs4_sequence_done(task, &data->res.seq_res)) 6981b4a4bd8SPeng Tao return; 6991b4a4bd8SPeng Tao 7006c5a0d89STrond Myklebust switch (task->tk_status) { 7016c5a0d89STrond Myklebust case 0: 7026c5a0d89STrond Myklebust break; 703cf61eb26STrond Myklebust case -NFS4ERR_BADHANDLE: 704cf61eb26STrond Myklebust case -ESTALE: 705cf61eb26STrond Myklebust pnfs_destroy_layout(NFS_I(inode)); 706cf61eb26STrond Myklebust break; 70768d264cfSPeng Tao case -NFS4ERR_EXPIRED: 708206b3bb5STrond Myklebust case -NFS4ERR_ADMIN_REVOKED: 709206b3bb5STrond Myklebust case -NFS4ERR_DELEG_REVOKED: 71068d264cfSPeng Tao case -NFS4ERR_STALE_STATEID: 71168d264cfSPeng Tao case -NFS4ERR_BAD_STATEID: 71268d264cfSPeng Tao spin_lock(&inode->i_lock); 71368d264cfSPeng Tao lo = NFS_I(inode)->layout; 7149a0fe867STrond Myklebust if (pnfs_layout_is_valid(lo) && 7159a0fe867STrond Myklebust nfs4_stateid_match(&data->args.stateid, 71668d264cfSPeng Tao &lo->plh_stateid)) { 71768d264cfSPeng Tao LIST_HEAD(head); 71868d264cfSPeng Tao 71968d264cfSPeng Tao /* 72068d264cfSPeng Tao * Mark the bad layout state as invalid, then retry 72168d264cfSPeng Tao * with the current stateid. 72268d264cfSPeng Tao */ 7235f46be04STrond Myklebust pnfs_mark_layout_stateid_invalid(lo, &head); 72468d264cfSPeng Tao spin_unlock(&inode->i_lock); 72568d264cfSPeng Tao pnfs_free_lseg_list(&head); 7261f18b82cSTrond Myklebust nfs_commit_inode(inode, 0); 72768d264cfSPeng Tao } else 72868d264cfSPeng Tao spin_unlock(&inode->i_lock); 72968d264cfSPeng Tao break; 7309a0fe867STrond Myklebust case -NFS4ERR_OLD_STATEID: 7319a0fe867STrond Myklebust spin_lock(&inode->i_lock); 7329a0fe867STrond Myklebust lo = NFS_I(inode)->layout; 7339a0fe867STrond Myklebust if (pnfs_layout_is_valid(lo) && 7349a0fe867STrond Myklebust nfs4_stateid_match_other(&data->args.stateid, 7359a0fe867STrond Myklebust &lo->plh_stateid)) { 7369a0fe867STrond Myklebust /* Do we need to delay before resending? */ 7379a0fe867STrond Myklebust if (!nfs4_stateid_is_newer(&lo->plh_stateid, 7389a0fe867STrond Myklebust &data->args.stateid)) 7399a0fe867STrond Myklebust rpc_delay(task, HZ); 7409a0fe867STrond Myklebust rpc_restart_call_prepare(task); 7419a0fe867STrond Myklebust } 7429a0fe867STrond Myklebust spin_unlock(&inode->i_lock); 7439a0fe867STrond Myklebust break; 7446c5a0d89STrond Myklebust case -ENOTSUPP: 7456c5a0d89STrond Myklebust case -EOPNOTSUPP: 74668d264cfSPeng Tao NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTSTATS; 7471b4a4bd8SPeng Tao } 7486c5a0d89STrond Myklebust } 7491b4a4bd8SPeng Tao 7501b4a4bd8SPeng Tao static void 7511b4a4bd8SPeng Tao nfs42_layoutstat_release(void *calldata) 7521b4a4bd8SPeng Tao { 7531b4a4bd8SPeng Tao struct nfs42_layoutstat_data *data = calldata; 754422c93c8STrond Myklebust struct nfs42_layoutstat_devinfo *devinfo = data->args.devinfo; 755422c93c8STrond Myklebust int i; 7568733408dSPeng Tao 757422c93c8STrond Myklebust for (i = 0; i < data->args.num_dev; i++) { 758422c93c8STrond Myklebust if (devinfo[i].ld_private.ops && devinfo[i].ld_private.ops->free) 759422c93c8STrond Myklebust devinfo[i].ld_private.ops->free(&devinfo[i].ld_private); 760422c93c8STrond Myklebust } 7611b4a4bd8SPeng Tao 7621b4a4bd8SPeng Tao pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout); 7631bfe3b25SPeng Tao smp_mb__before_atomic(); 7641bfe3b25SPeng Tao clear_bit(NFS_INO_LAYOUTSTATS, &NFS_I(data->args.inode)->flags); 7651bfe3b25SPeng Tao smp_mb__after_atomic(); 7661b4a4bd8SPeng Tao nfs_iput_and_deactive(data->inode); 7671b4a4bd8SPeng Tao kfree(data->args.devinfo); 7681b4a4bd8SPeng Tao kfree(data); 7691b4a4bd8SPeng Tao } 7701b4a4bd8SPeng Tao 771be3a5d23STrond Myklebust static const struct rpc_call_ops nfs42_layoutstat_ops = { 7721b4a4bd8SPeng Tao .rpc_call_prepare = nfs42_layoutstat_prepare, 7731b4a4bd8SPeng Tao .rpc_call_done = nfs42_layoutstat_done, 7741b4a4bd8SPeng Tao .rpc_release = nfs42_layoutstat_release, 775be3a5d23STrond Myklebust }; 776be3a5d23STrond Myklebust 777be3a5d23STrond Myklebust int nfs42_proc_layoutstats_generic(struct nfs_server *server, 778be3a5d23STrond Myklebust struct nfs42_layoutstat_data *data) 779be3a5d23STrond Myklebust { 780be3a5d23STrond Myklebust struct rpc_message msg = { 781be3a5d23STrond Myklebust .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTSTATS], 782be3a5d23STrond Myklebust .rpc_argp = &data->args, 783be3a5d23STrond Myklebust .rpc_resp = &data->res, 784be3a5d23STrond Myklebust }; 785be3a5d23STrond Myklebust struct rpc_task_setup task_setup = { 786be3a5d23STrond Myklebust .rpc_client = server->client, 787be3a5d23STrond Myklebust .rpc_message = &msg, 788be3a5d23STrond Myklebust .callback_ops = &nfs42_layoutstat_ops, 789be3a5d23STrond Myklebust .callback_data = data, 790be3a5d23STrond Myklebust .flags = RPC_TASK_ASYNC, 791be3a5d23STrond Myklebust }; 792be3a5d23STrond Myklebust struct rpc_task *task; 793be3a5d23STrond Myklebust 7941b4a4bd8SPeng Tao data->inode = nfs_igrab_and_active(data->args.inode); 7951b4a4bd8SPeng Tao if (!data->inode) { 7961b4a4bd8SPeng Tao nfs42_layoutstat_release(data); 7971b4a4bd8SPeng Tao return -EAGAIN; 7981b4a4bd8SPeng Tao } 799fba83f34SAnna Schumaker nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0, 0); 800be3a5d23STrond Myklebust task = rpc_run_task(&task_setup); 801be3a5d23STrond Myklebust if (IS_ERR(task)) 802be3a5d23STrond Myklebust return PTR_ERR(task); 8033f807e5aSJeff Layton rpc_put_task(task); 804be3a5d23STrond Myklebust return 0; 805be3a5d23STrond Myklebust } 806e5341f3aSPeng Tao 8073eb86093STrond Myklebust static struct nfs42_layouterror_data * 8083eb86093STrond Myklebust nfs42_alloc_layouterror_data(struct pnfs_layout_segment *lseg, gfp_t gfp_flags) 8093eb86093STrond Myklebust { 8103eb86093STrond Myklebust struct nfs42_layouterror_data *data; 8113eb86093STrond Myklebust struct inode *inode = lseg->pls_layout->plh_inode; 8123eb86093STrond Myklebust 8133eb86093STrond Myklebust data = kzalloc(sizeof(*data), gfp_flags); 8143eb86093STrond Myklebust if (data) { 8153eb86093STrond Myklebust data->args.inode = data->inode = nfs_igrab_and_active(inode); 8163eb86093STrond Myklebust if (data->inode) { 8173eb86093STrond Myklebust data->lseg = pnfs_get_lseg(lseg); 8183eb86093STrond Myklebust if (data->lseg) 8193eb86093STrond Myklebust return data; 8203eb86093STrond Myklebust nfs_iput_and_deactive(data->inode); 8213eb86093STrond Myklebust } 8223eb86093STrond Myklebust kfree(data); 8233eb86093STrond Myklebust } 8243eb86093STrond Myklebust return NULL; 8253eb86093STrond Myklebust } 8263eb86093STrond Myklebust 8273eb86093STrond Myklebust static void 8283eb86093STrond Myklebust nfs42_free_layouterror_data(struct nfs42_layouterror_data *data) 8293eb86093STrond Myklebust { 8303eb86093STrond Myklebust pnfs_put_lseg(data->lseg); 8313eb86093STrond Myklebust nfs_iput_and_deactive(data->inode); 8323eb86093STrond Myklebust kfree(data); 8333eb86093STrond Myklebust } 8343eb86093STrond Myklebust 8353eb86093STrond Myklebust static void 8363eb86093STrond Myklebust nfs42_layouterror_prepare(struct rpc_task *task, void *calldata) 8373eb86093STrond Myklebust { 8383eb86093STrond Myklebust struct nfs42_layouterror_data *data = calldata; 8393eb86093STrond Myklebust struct inode *inode = data->inode; 8403eb86093STrond Myklebust struct nfs_server *server = NFS_SERVER(inode); 8413eb86093STrond Myklebust struct pnfs_layout_hdr *lo = data->lseg->pls_layout; 8423eb86093STrond Myklebust unsigned i; 8433eb86093STrond Myklebust 8443eb86093STrond Myklebust spin_lock(&inode->i_lock); 8453eb86093STrond Myklebust if (!pnfs_layout_is_valid(lo)) { 8463eb86093STrond Myklebust spin_unlock(&inode->i_lock); 8473eb86093STrond Myklebust rpc_exit(task, 0); 8483eb86093STrond Myklebust return; 8493eb86093STrond Myklebust } 8503eb86093STrond Myklebust for (i = 0; i < data->args.num_errors; i++) 8513eb86093STrond Myklebust nfs4_stateid_copy(&data->args.errors[i].stateid, 8523eb86093STrond Myklebust &lo->plh_stateid); 8533eb86093STrond Myklebust spin_unlock(&inode->i_lock); 8543eb86093STrond Myklebust nfs4_setup_sequence(server->nfs_client, &data->args.seq_args, 8553eb86093STrond Myklebust &data->res.seq_res, task); 8563eb86093STrond Myklebust } 8573eb86093STrond Myklebust 8583eb86093STrond Myklebust static void 8593eb86093STrond Myklebust nfs42_layouterror_done(struct rpc_task *task, void *calldata) 8603eb86093STrond Myklebust { 8613eb86093STrond Myklebust struct nfs42_layouterror_data *data = calldata; 8623eb86093STrond Myklebust struct inode *inode = data->inode; 8633eb86093STrond Myklebust struct pnfs_layout_hdr *lo = data->lseg->pls_layout; 8643eb86093STrond Myklebust 8653eb86093STrond Myklebust if (!nfs4_sequence_done(task, &data->res.seq_res)) 8663eb86093STrond Myklebust return; 8673eb86093STrond Myklebust 8683eb86093STrond Myklebust switch (task->tk_status) { 8693eb86093STrond Myklebust case 0: 8703eb86093STrond Myklebust break; 8713eb86093STrond Myklebust case -NFS4ERR_BADHANDLE: 8723eb86093STrond Myklebust case -ESTALE: 8733eb86093STrond Myklebust pnfs_destroy_layout(NFS_I(inode)); 8743eb86093STrond Myklebust break; 8753eb86093STrond Myklebust case -NFS4ERR_EXPIRED: 8763eb86093STrond Myklebust case -NFS4ERR_ADMIN_REVOKED: 8773eb86093STrond Myklebust case -NFS4ERR_DELEG_REVOKED: 8783eb86093STrond Myklebust case -NFS4ERR_STALE_STATEID: 8793eb86093STrond Myklebust case -NFS4ERR_BAD_STATEID: 8803eb86093STrond Myklebust spin_lock(&inode->i_lock); 8813eb86093STrond Myklebust if (pnfs_layout_is_valid(lo) && 8823eb86093STrond Myklebust nfs4_stateid_match(&data->args.errors[0].stateid, 8833eb86093STrond Myklebust &lo->plh_stateid)) { 8843eb86093STrond Myklebust LIST_HEAD(head); 8853eb86093STrond Myklebust 8863eb86093STrond Myklebust /* 8873eb86093STrond Myklebust * Mark the bad layout state as invalid, then retry 8883eb86093STrond Myklebust * with the current stateid. 8893eb86093STrond Myklebust */ 8903eb86093STrond Myklebust pnfs_mark_layout_stateid_invalid(lo, &head); 8913eb86093STrond Myklebust spin_unlock(&inode->i_lock); 8923eb86093STrond Myklebust pnfs_free_lseg_list(&head); 8933eb86093STrond Myklebust nfs_commit_inode(inode, 0); 8943eb86093STrond Myklebust } else 8953eb86093STrond Myklebust spin_unlock(&inode->i_lock); 8963eb86093STrond Myklebust break; 8973eb86093STrond Myklebust case -NFS4ERR_OLD_STATEID: 8983eb86093STrond Myklebust spin_lock(&inode->i_lock); 8993eb86093STrond Myklebust if (pnfs_layout_is_valid(lo) && 9003eb86093STrond Myklebust nfs4_stateid_match_other(&data->args.errors[0].stateid, 9013eb86093STrond Myklebust &lo->plh_stateid)) { 9023eb86093STrond Myklebust /* Do we need to delay before resending? */ 9033eb86093STrond Myklebust if (!nfs4_stateid_is_newer(&lo->plh_stateid, 9043eb86093STrond Myklebust &data->args.errors[0].stateid)) 9053eb86093STrond Myklebust rpc_delay(task, HZ); 9063eb86093STrond Myklebust rpc_restart_call_prepare(task); 9073eb86093STrond Myklebust } 9083eb86093STrond Myklebust spin_unlock(&inode->i_lock); 9093eb86093STrond Myklebust break; 9103eb86093STrond Myklebust case -ENOTSUPP: 9113eb86093STrond Myklebust case -EOPNOTSUPP: 9123eb86093STrond Myklebust NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTERROR; 9133eb86093STrond Myklebust } 9143eb86093STrond Myklebust } 9153eb86093STrond Myklebust 9163eb86093STrond Myklebust static void 9173eb86093STrond Myklebust nfs42_layouterror_release(void *calldata) 9183eb86093STrond Myklebust { 9193eb86093STrond Myklebust struct nfs42_layouterror_data *data = calldata; 9203eb86093STrond Myklebust 9213eb86093STrond Myklebust nfs42_free_layouterror_data(data); 9223eb86093STrond Myklebust } 9233eb86093STrond Myklebust 9243eb86093STrond Myklebust static const struct rpc_call_ops nfs42_layouterror_ops = { 9253eb86093STrond Myklebust .rpc_call_prepare = nfs42_layouterror_prepare, 9263eb86093STrond Myklebust .rpc_call_done = nfs42_layouterror_done, 9273eb86093STrond Myklebust .rpc_release = nfs42_layouterror_release, 9283eb86093STrond Myklebust }; 9293eb86093STrond Myklebust 9303eb86093STrond Myklebust int nfs42_proc_layouterror(struct pnfs_layout_segment *lseg, 9313eb86093STrond Myklebust const struct nfs42_layout_error *errors, size_t n) 9323eb86093STrond Myklebust { 9333eb86093STrond Myklebust struct inode *inode = lseg->pls_layout->plh_inode; 9343eb86093STrond Myklebust struct nfs42_layouterror_data *data; 9353eb86093STrond Myklebust struct rpc_task *task; 9363eb86093STrond Myklebust struct rpc_message msg = { 9373eb86093STrond Myklebust .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTERROR], 9383eb86093STrond Myklebust }; 9393eb86093STrond Myklebust struct rpc_task_setup task_setup = { 9403eb86093STrond Myklebust .rpc_message = &msg, 9413eb86093STrond Myklebust .callback_ops = &nfs42_layouterror_ops, 9423eb86093STrond Myklebust .flags = RPC_TASK_ASYNC, 9433eb86093STrond Myklebust }; 9443eb86093STrond Myklebust unsigned int i; 9453eb86093STrond Myklebust 9463eb86093STrond Myklebust if (!nfs_server_capable(inode, NFS_CAP_LAYOUTERROR)) 9473eb86093STrond Myklebust return -EOPNOTSUPP; 9483eb86093STrond Myklebust if (n > NFS42_LAYOUTERROR_MAX) 9493eb86093STrond Myklebust return -EINVAL; 9503eb86093STrond Myklebust data = nfs42_alloc_layouterror_data(lseg, GFP_NOFS); 9513eb86093STrond Myklebust if (!data) 9523eb86093STrond Myklebust return -ENOMEM; 9533eb86093STrond Myklebust for (i = 0; i < n; i++) { 9543eb86093STrond Myklebust data->args.errors[i] = errors[i]; 9553eb86093STrond Myklebust data->args.num_errors++; 9563eb86093STrond Myklebust data->res.num_errors++; 9573eb86093STrond Myklebust } 9583eb86093STrond Myklebust msg.rpc_argp = &data->args; 9593eb86093STrond Myklebust msg.rpc_resp = &data->res; 9603eb86093STrond Myklebust task_setup.callback_data = data; 9613eb86093STrond Myklebust task_setup.rpc_client = NFS_SERVER(inode)->client; 9623eb86093STrond Myklebust nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0, 0); 9633eb86093STrond Myklebust task = rpc_run_task(&task_setup); 9643eb86093STrond Myklebust if (IS_ERR(task)) 9653eb86093STrond Myklebust return PTR_ERR(task); 9663eb86093STrond Myklebust rpc_put_task(task); 9673eb86093STrond Myklebust return 0; 9683eb86093STrond Myklebust } 9693eb86093STrond Myklebust EXPORT_SYMBOL_GPL(nfs42_proc_layouterror); 9703eb86093STrond Myklebust 971e5341f3aSPeng Tao static int _nfs42_proc_clone(struct rpc_message *msg, struct file *src_f, 9724bdf87ebSChristoph Hellwig struct file *dst_f, struct nfs_lock_context *src_lock, 9734bdf87ebSChristoph Hellwig struct nfs_lock_context *dst_lock, loff_t src_offset, 974e5341f3aSPeng Tao loff_t dst_offset, loff_t count) 975e5341f3aSPeng Tao { 976e5341f3aSPeng Tao struct inode *src_inode = file_inode(src_f); 977e5341f3aSPeng Tao struct inode *dst_inode = file_inode(dst_f); 978e5341f3aSPeng Tao struct nfs_server *server = NFS_SERVER(dst_inode); 979e5341f3aSPeng Tao struct nfs42_clone_args args = { 980e5341f3aSPeng Tao .src_fh = NFS_FH(src_inode), 981e5341f3aSPeng Tao .dst_fh = NFS_FH(dst_inode), 982e5341f3aSPeng Tao .src_offset = src_offset, 983e5341f3aSPeng Tao .dst_offset = dst_offset, 9849494b2ceSChristoph Hellwig .count = count, 985e5341f3aSPeng Tao .dst_bitmask = server->cache_consistency_bitmask, 986e5341f3aSPeng Tao }; 987e5341f3aSPeng Tao struct nfs42_clone_res res = { 988e5341f3aSPeng Tao .server = server, 989e5341f3aSPeng Tao }; 990e5341f3aSPeng Tao int status; 991e5341f3aSPeng Tao 992e5341f3aSPeng Tao msg->rpc_argp = &args; 993e5341f3aSPeng Tao msg->rpc_resp = &res; 994e5341f3aSPeng Tao 9954bdf87ebSChristoph Hellwig status = nfs4_set_rw_stateid(&args.src_stateid, src_lock->open_context, 9964bdf87ebSChristoph Hellwig src_lock, FMODE_READ); 997e5341f3aSPeng Tao if (status) 998e5341f3aSPeng Tao return status; 999e5341f3aSPeng Tao 10004bdf87ebSChristoph Hellwig status = nfs4_set_rw_stateid(&args.dst_stateid, dst_lock->open_context, 10014bdf87ebSChristoph Hellwig dst_lock, FMODE_WRITE); 1002e5341f3aSPeng Tao if (status) 1003e5341f3aSPeng Tao return status; 1004e5341f3aSPeng Tao 1005e5341f3aSPeng Tao res.dst_fattr = nfs_alloc_fattr(); 1006e5341f3aSPeng Tao if (!res.dst_fattr) 1007e5341f3aSPeng Tao return -ENOMEM; 1008e5341f3aSPeng Tao 1009e5341f3aSPeng Tao status = nfs4_call_sync(server->client, server, msg, 1010e5341f3aSPeng Tao &args.seq_args, &res.seq_res, 0); 1011e5341f3aSPeng Tao if (status == 0) 1012e5341f3aSPeng Tao status = nfs_post_op_update_inode(dst_inode, res.dst_fattr); 1013e5341f3aSPeng Tao 1014e5341f3aSPeng Tao kfree(res.dst_fattr); 1015e5341f3aSPeng Tao return status; 1016e5341f3aSPeng Tao } 1017e5341f3aSPeng Tao 1018e5341f3aSPeng Tao int nfs42_proc_clone(struct file *src_f, struct file *dst_f, 1019e5341f3aSPeng Tao loff_t src_offset, loff_t dst_offset, loff_t count) 1020e5341f3aSPeng Tao { 1021e5341f3aSPeng Tao struct rpc_message msg = { 1022e5341f3aSPeng Tao .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLONE], 1023e5341f3aSPeng Tao }; 1024e5341f3aSPeng Tao struct inode *inode = file_inode(src_f); 1025e5341f3aSPeng Tao struct nfs_server *server = NFS_SERVER(file_inode(src_f)); 10264bdf87ebSChristoph Hellwig struct nfs_lock_context *src_lock; 10274bdf87ebSChristoph Hellwig struct nfs_lock_context *dst_lock; 10284bdf87ebSChristoph Hellwig struct nfs4_exception src_exception = { }; 10294bdf87ebSChristoph Hellwig struct nfs4_exception dst_exception = { }; 10304bdf87ebSChristoph Hellwig int err, err2; 1031e5341f3aSPeng Tao 1032e5341f3aSPeng Tao if (!nfs_server_capable(inode, NFS_CAP_CLONE)) 1033e5341f3aSPeng Tao return -EOPNOTSUPP; 1034e5341f3aSPeng Tao 10354bdf87ebSChristoph Hellwig src_lock = nfs_get_lock_context(nfs_file_open_context(src_f)); 10364bdf87ebSChristoph Hellwig if (IS_ERR(src_lock)) 10374bdf87ebSChristoph Hellwig return PTR_ERR(src_lock); 10384bdf87ebSChristoph Hellwig 10394bdf87ebSChristoph Hellwig src_exception.inode = file_inode(src_f); 10404bdf87ebSChristoph Hellwig src_exception.state = src_lock->open_context->state; 10414bdf87ebSChristoph Hellwig 10424bdf87ebSChristoph Hellwig dst_lock = nfs_get_lock_context(nfs_file_open_context(dst_f)); 10434bdf87ebSChristoph Hellwig if (IS_ERR(dst_lock)) { 10444bdf87ebSChristoph Hellwig err = PTR_ERR(dst_lock); 10454bdf87ebSChristoph Hellwig goto out_put_src_lock; 10464bdf87ebSChristoph Hellwig } 10474bdf87ebSChristoph Hellwig 10484bdf87ebSChristoph Hellwig dst_exception.inode = file_inode(dst_f); 10494bdf87ebSChristoph Hellwig dst_exception.state = dst_lock->open_context->state; 10504bdf87ebSChristoph Hellwig 1051e5341f3aSPeng Tao do { 10524bdf87ebSChristoph Hellwig err = _nfs42_proc_clone(&msg, src_f, dst_f, src_lock, dst_lock, 10534bdf87ebSChristoph Hellwig src_offset, dst_offset, count); 1054e5341f3aSPeng Tao if (err == -ENOTSUPP || err == -EOPNOTSUPP) { 1055e5341f3aSPeng Tao NFS_SERVER(inode)->caps &= ~NFS_CAP_CLONE; 10564bdf87ebSChristoph Hellwig err = -EOPNOTSUPP; 10574bdf87ebSChristoph Hellwig break; 1058e5341f3aSPeng Tao } 1059e5341f3aSPeng Tao 10604bdf87ebSChristoph Hellwig err2 = nfs4_handle_exception(server, err, &src_exception); 10614bdf87ebSChristoph Hellwig err = nfs4_handle_exception(server, err, &dst_exception); 10624bdf87ebSChristoph Hellwig if (!err) 10634bdf87ebSChristoph Hellwig err = err2; 10644bdf87ebSChristoph Hellwig } while (src_exception.retry || dst_exception.retry); 10654bdf87ebSChristoph Hellwig 10664bdf87ebSChristoph Hellwig nfs_put_lock_context(dst_lock); 10674bdf87ebSChristoph Hellwig out_put_src_lock: 10684bdf87ebSChristoph Hellwig nfs_put_lock_context(src_lock); 1069e5341f3aSPeng Tao return err; 1070e5341f3aSPeng Tao } 1071