diff options
Diffstat (limited to 'fs/nfs')
37 files changed, 1665 insertions, 636 deletions
diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index f55a4e756047..217847679f0e 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -346,7 +346,7 @@ static void bl_write_cleanup(struct work_struct *work) PAGE_SIZE - 1) & (loff_t)PAGE_MASK; ext_tree_mark_written(bl, start >> SECTOR_SHIFT, - (end - start) >> SECTOR_SHIFT); + (end - start) >> SECTOR_SHIFT, end); } pnfs_ld_write_done(hdr); diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h index 18e6fd0b9506..efc007f00742 100644 --- a/fs/nfs/blocklayout/blocklayout.h +++ b/fs/nfs/blocklayout/blocklayout.h @@ -141,6 +141,7 @@ struct pnfs_block_layout { struct rb_root bl_ext_ro; spinlock_t bl_ext_lock; /* Protects list manipulation */ bool bl_scsi_layout; + u64 bl_lwb; }; static inline struct pnfs_block_layout * @@ -182,7 +183,7 @@ int ext_tree_insert(struct pnfs_block_layout *bl, int ext_tree_remove(struct pnfs_block_layout *bl, bool rw, sector_t start, sector_t end); int ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, - sector_t len); + sector_t len, u64 lwb); bool ext_tree_lookup(struct pnfs_block_layout *bl, sector_t isect, struct pnfs_block_extent *ret, bool rw); int ext_tree_prepare_commit(struct nfs4_layoutcommit_args *arg); diff --git a/fs/nfs/blocklayout/extent_tree.c b/fs/nfs/blocklayout/extent_tree.c index 992bcb19c11e..c85fbfd2d0d9 100644 --- a/fs/nfs/blocklayout/extent_tree.c +++ b/fs/nfs/blocklayout/extent_tree.c @@ -402,7 +402,7 @@ ext_tree_split(struct rb_root *root, struct pnfs_block_extent *be, int ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, - sector_t len) + sector_t len, u64 lwb) { struct rb_root *root = &bl->bl_ext_rw; sector_t end = start + len; @@ -471,6 +471,8 @@ ext_tree_mark_written(struct pnfs_block_layout *bl, sector_t start, } } out: + if (bl->bl_lwb < lwb) + bl->bl_lwb = lwb; spin_unlock(&bl->bl_ext_lock); __ext_put_deviceids(&tmp); @@ -518,7 +520,7 @@ static __be32 *encode_scsi_range(struct pnfs_block_extent *be, __be32 *p) } static int ext_tree_encode_commit(struct pnfs_block_layout *bl, __be32 *p, - size_t buffer_size, size_t *count) + size_t buffer_size, size_t *count, __u64 *lastbyte) { struct pnfs_block_extent *be; int ret = 0; @@ -542,6 +544,8 @@ static int ext_tree_encode_commit(struct pnfs_block_layout *bl, __be32 *p, p = encode_block_extent(be, p); be->be_tag = EXTENT_COMMITTING; } + *lastbyte = bl->bl_lwb - 1; + bl->bl_lwb = 0; spin_unlock(&bl->bl_ext_lock); return ret; @@ -564,7 +568,7 @@ ext_tree_prepare_commit(struct nfs4_layoutcommit_args *arg) arg->layoutupdate_pages = &arg->layoutupdate_page; retry: - ret = ext_tree_encode_commit(bl, start_p + 1, buffer_size, &count); + ret = ext_tree_encode_commit(bl, start_p + 1, buffer_size, &count, &arg->lastbytewritten); if (unlikely(ret)) { ext_tree_free_commitdata(arg, buffer_size); diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c index 5f7b053720ee..6de15709d024 100644 --- a/fs/nfs/cache_lib.c +++ b/fs/nfs/cache_lib.c @@ -76,7 +76,7 @@ static void nfs_dns_cache_revisit(struct cache_deferred_req *d, int toomany) dreq = container_of(d, struct nfs_cache_defer_req, deferred_req); - complete_all(&dreq->completion); + complete(&dreq->completion); nfs_cache_defer_req_put(dreq); } diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index a7f2e6e33305..532d8e242d4d 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -31,8 +31,6 @@ struct nfs_callback_data { unsigned int users; struct svc_serv *serv; - struct svc_rqst *rqst; - struct task_struct *task; }; static struct nfs_callback_data nfs_callback_info[NFS4_MAX_MINOR_VERSION + 1]; @@ -89,15 +87,6 @@ nfs4_callback_svc(void *vrqstp) return 0; } -/* - * Prepare to bring up the NFSv4 callback service - */ -static struct svc_rqst * -nfs4_callback_up(struct svc_serv *serv) -{ - return svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE); -} - #if defined(CONFIG_NFS_V4_1) /* * The callback service for NFSv4.1 callbacks @@ -139,29 +128,6 @@ nfs41_callback_svc(void *vrqstp) return 0; } -/* - * Bring up the NFSv4.1 callback service - */ -static struct svc_rqst * -nfs41_callback_up(struct svc_serv *serv) -{ - struct svc_rqst *rqstp; - - INIT_LIST_HEAD(&serv->sv_cb_list); - spin_lock_init(&serv->sv_cb_lock); - init_waitqueue_head(&serv->sv_cb_waitq); - rqstp = svc_prepare_thread(serv, &serv->sv_pools[0], NUMA_NO_NODE); - dprintk("--> %s return %d\n", __func__, PTR_ERR_OR_ZERO(rqstp)); - return rqstp; -} - -static void nfs_minorversion_callback_svc_setup(struct svc_serv *serv, - struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp)) -{ - *rqstpp = nfs41_callback_up(serv); - *callback_svc = nfs41_callback_svc; -} - static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, struct svc_serv *serv) { @@ -173,13 +139,6 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, xprt->bc_serv = serv; } #else -static void nfs_minorversion_callback_svc_setup(struct svc_serv *serv, - struct svc_rqst **rqstpp, int (**callback_svc)(void *vrqstp)) -{ - *rqstpp = ERR_PTR(-ENOTSUPP); - *callback_svc = ERR_PTR(-ENOTSUPP); -} - static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, struct svc_serv *serv) { @@ -189,45 +148,22 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt, struct svc_serv *serv) { - struct svc_rqst *rqstp; - int (*callback_svc)(void *vrqstp); - struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion]; + int nrservs = nfs_callback_nr_threads; int ret; nfs_callback_bc_serv(minorversion, xprt, serv); - if (cb_info->task) - return 0; + if (nrservs < NFS4_MIN_NR_CALLBACK_THREADS) + nrservs = NFS4_MIN_NR_CALLBACK_THREADS; - switch (minorversion) { - case 0: - /* v4.0 callback setup */ - rqstp = nfs4_callback_up(serv); - callback_svc = nfs4_callback_svc; - break; - default: - nfs_minorversion_callback_svc_setup(serv, - &rqstp, &callback_svc); - } - - if (IS_ERR(rqstp)) - return PTR_ERR(rqstp); - - svc_sock_update_bufs(serv); + if (serv->sv_nrthreads-1 == nrservs) + return 0; - cb_info->serv = serv; - cb_info->rqst = rqstp; - cb_info->task = kthread_create(callback_svc, cb_info->rqst, - "nfsv4.%u-svc", minorversion); - if (IS_ERR(cb_info->task)) { - ret = PTR_ERR(cb_info->task); - svc_exit_thread(cb_info->rqst); - cb_info->rqst = NULL; - cb_info->task = NULL; + ret = serv->sv_ops->svo_setup(serv, NULL, nrservs); + if (ret) { + serv->sv_ops->svo_setup(serv, NULL, 0); return ret; } - rqstp->rq_task = cb_info->task; - wake_up_process(cb_info->task); dprintk("nfs_callback_up: service started\n"); return 0; } @@ -275,24 +211,47 @@ static int nfs_callback_up_net(int minorversion, struct svc_serv *serv, err_socks: svc_rpcb_cleanup(serv, net); err_bind: + nn->cb_users[minorversion]--; dprintk("NFS: Couldn't create callback socket: err = %d; " "net = %p\n", ret, net); return ret; } -static struct svc_serv_ops nfs_cb_sv_ops = { +static struct svc_serv_ops nfs40_cb_sv_ops = { + .svo_function = nfs4_callback_svc, .svo_enqueue_xprt = svc_xprt_do_enqueue, + .svo_setup = svc_set_num_threads, + .svo_module = THIS_MODULE, +}; +#if defined(CONFIG_NFS_V4_1) +static struct svc_serv_ops nfs41_cb_sv_ops = { + .svo_function = nfs41_callback_svc, + .svo_enqueue_xprt = svc_xprt_do_enqueue, + .svo_setup = svc_set_num_threads, + .svo_module = THIS_MODULE, +}; + +struct svc_serv_ops *nfs4_cb_sv_ops[] = { + [0] = &nfs40_cb_sv_ops, + [1] = &nfs41_cb_sv_ops, +}; +#else +struct svc_serv_ops *nfs4_cb_sv_ops[] = { + [0] = &nfs40_cb_sv_ops, + [1] = NULL, }; +#endif static struct svc_serv *nfs_callback_create_svc(int minorversion) { struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion]; struct svc_serv *serv; + struct svc_serv_ops *sv_ops; /* * Check whether we're already up and running. */ - if (cb_info->task) { + if (cb_info->serv) { /* * Note: increase service usage, because later in case of error * svc_destroy() will be called. @@ -301,6 +260,17 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion) return cb_info->serv; } + switch (minorversion) { + case 0: + sv_ops = nfs4_cb_sv_ops[0]; + break; + default: + sv_ops = nfs4_cb_sv_ops[1]; + } + + if (sv_ops == NULL) + return ERR_PTR(-ENOTSUPP); + /* * Sanity check: if there's no task, * we should be the first user ... @@ -309,11 +279,12 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion) printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n", cb_info->users); - serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, &nfs_cb_sv_ops); + serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops); if (!serv) { printk(KERN_ERR "nfs_callback_create_svc: create service failed\n"); return ERR_PTR(-ENOMEM); } + cb_info->serv = serv; /* As there is only one thread we need to over-ride the * default maximum of 80 connections */ @@ -356,6 +327,8 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt) * thread exits. */ err_net: + if (!cb_info->users) + cb_info->serv = NULL; svc_destroy(serv); err_create: mutex_unlock(&nfs_callback_mutex); @@ -373,18 +346,18 @@ err_start: void nfs_callback_down(int minorversion, struct net *net) { struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion]; + struct svc_serv *serv; mutex_lock(&nfs_callback_mutex); - nfs_callback_down_net(minorversion, cb_info->serv, net); + serv = cb_info->serv; + nfs_callback_down_net(minorversion, serv, net); cb_info->users--; - if (cb_info->users == 0 && cb_info->task != NULL) { - kthread_stop(cb_info->task); - dprintk("nfs_callback_down: service stopped\n"); - svc_exit_thread(cb_info->rqst); + if (cb_info->users == 0) { + svc_get(serv); + serv->sv_ops->svo_setup(serv, NULL, 0); + svc_destroy(serv); dprintk("nfs_callback_down: service destroyed\n"); cb_info->serv = NULL; - cb_info->rqst = NULL; - cb_info->task = NULL; } mutex_unlock(&nfs_callback_mutex); } diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h index 5fe1cecbf9f0..c701c308fac5 100644 --- a/fs/nfs/callback.h +++ b/fs/nfs/callback.h @@ -179,6 +179,15 @@ extern __be32 nfs4_callback_devicenotify( struct cb_devicenotifyargs *args, void *dummy, struct cb_process_state *cps); +struct cb_notify_lock_args { + struct nfs_fh cbnl_fh; + struct nfs_lowner cbnl_owner; + bool cbnl_valid; +}; + +extern __be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args, + void *dummy, + struct cb_process_state *cps); #endif /* CONFIG_NFS_V4_1 */ extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *); extern __be32 nfs4_callback_getattr(struct cb_getattrargs *args, @@ -198,6 +207,9 @@ extern void nfs_callback_down(int minorversion, struct net *net); #define NFS41_BC_MIN_CALLBACKS 1 #define NFS41_BC_MAX_CALLBACKS 1 +#define NFS4_MIN_NR_CALLBACK_THREADS 1 + extern unsigned int nfs_callback_set_tcpport; +extern unsigned short nfs_callback_nr_threads; #endif /* __LINUX_FS_NFS_CALLBACK_H */ diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c index c92a75e066a6..e9aa235e9d10 100644 --- a/fs/nfs/callback_proc.c +++ b/fs/nfs/callback_proc.c @@ -454,11 +454,8 @@ static bool referring_call_exists(struct nfs_client *clp, ((u32 *)&rclist->rcl_sessionid.data)[3], ref->rc_sequenceid, ref->rc_slotid); - spin_lock(&tbl->slot_tbl_lock); - status = (test_bit(ref->rc_slotid, tbl->used_slots) && - tbl->slots[ref->rc_slotid].seq_nr == - ref->rc_sequenceid); - spin_unlock(&tbl->slot_tbl_lock); + status = nfs4_slot_wait_on_seqid(tbl, ref->rc_slotid, + ref->rc_sequenceid, HZ >> 1) < 0; if (status) goto out; } @@ -487,7 +484,6 @@ __be32 nfs4_callback_sequence(struct cb_sequenceargs *args, goto out; tbl = &clp->cl_session->bc_slot_table; - slot = tbl->slots + args->csa_slotid; /* Set up res before grabbing the spinlock */ memcpy(&res->csr_sessionid, &args->csa_sessionid, @@ -632,4 +628,20 @@ out: dprintk("%s: exit with status = %d\n", __func__, ntohl(status)); return status; } + +__be32 nfs4_callback_notify_lock(struct cb_notify_lock_args *args, void *dummy, + struct cb_process_state *cps) +{ + if (!cps->clp) /* set in cb_sequence */ + return htonl(NFS4ERR_OP_NOT_IN_SESSION); + + dprintk_rcu("NFS: CB_NOTIFY_LOCK request from %s\n", + rpc_peeraddr2str(cps->clp->cl_rpcclient, RPC_DISPLAY_ADDR)); + + /* Don't wake anybody if the string looked bogus */ + if (args->cbnl_valid) + __wake_up(&cps->clp->cl_lock_waitq, TASK_NORMAL, 0, args); + + return htonl(NFS4_OK); +} #endif /* CONFIG_NFS_V4_1 */ diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c index 656f68f7fe53..eb094c6011d8 100644 --- a/fs/nfs/callback_xdr.c +++ b/fs/nfs/callback_xdr.c @@ -35,6 +35,7 @@ (1 + 3) * 4) // seqid, 3 slotids #define CB_OP_RECALLANY_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) #define CB_OP_RECALLSLOT_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) +#define CB_OP_NOTIFY_LOCK_RES_MAXSZ (CB_OP_HDR_RES_MAXSZ) #endif /* CONFIG_NFS_V4_1 */ #define NFSDBG_FACILITY NFSDBG_CALLBACK @@ -72,7 +73,7 @@ static int nfs4_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy) return xdr_ressize_check(rqstp, p); } -static __be32 *read_buf(struct xdr_stream *xdr, int nbytes) +static __be32 *read_buf(struct xdr_stream *xdr, size_t nbytes) { __be32 *p; @@ -534,6 +535,49 @@ static __be32 decode_recallslot_args(struct svc_rqst *rqstp, return 0; } +static __be32 decode_lockowner(struct xdr_stream *xdr, struct cb_notify_lock_args *args) +{ + __be32 *p; + unsigned int len; + + p = read_buf(xdr, 12); + if (unlikely(p == NULL)) + return htonl(NFS4ERR_BADXDR); + + p = xdr_decode_hyper(p, &args->cbnl_owner.clientid); + len = be32_to_cpu(*p); + + p = read_buf(xdr, len); + if (unlikely(p == NULL)) + return htonl(NFS4ERR_BADXDR); + + /* Only try to decode if the length is right */ + if (len == 20) { + p += 2; /* skip "lock id:" */ + args->cbnl_owner.s_dev = be32_to_cpu(*p++); + xdr_decode_hyper(p, &args->cbnl_owner.id); + args->cbnl_valid = true; + } else { + args->cbnl_owner.s_dev = 0; + args->cbnl_owner.id = 0; + args->cbnl_valid = false; + } + return 0; +} + +static __be32 decode_notify_lock_args(struct svc_rqst *rqstp, struct xdr_stream *xdr, struct cb_notify_lock_args *args) +{ + __be32 status; + + status = decode_fh(xdr, &args->cbnl_fh); + if (unlikely(status != 0)) + goto out; + status = decode_lockowner(xdr, args); +out: + dprintk("%s: exit with status = %d\n", __func__, ntohl(status)); + return status; +} + #endif /* CONFIG_NFS_V4_1 */ static __be32 encode_string(struct xdr_stream *xdr, unsigned int len, const char *str) @@ -746,6 +790,7 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op) case OP_CB_RECALL_SLOT: case OP_CB_LAYOUTRECALL: case OP_CB_NOTIFY_DEVICEID: + case OP_CB_NOTIFY_LOCK: *op = &callback_ops[op_nr]; break; @@ -753,7 +798,6 @@ preprocess_nfs41_op(int nop, unsigned int op_nr, struct callback_op **op) case OP_CB_PUSH_DELEG: case OP_CB_RECALLABLE_OBJ_AVAIL: case OP_CB_WANTS_CANCELLED: - case OP_CB_NOTIFY_LOCK: return htonl(NFS4ERR_NOTSUPP); default: @@ -1006,6 +1050,11 @@ static struct callback_op callback_ops[] = { .decode_args = (callback_decode_arg_t)decode_recallslot_args, .res_maxsize = CB_OP_RECALLSLOT_RES_MAXSZ, }, + [OP_CB_NOTIFY_LOCK] = { + .process_op = (callback_process_op_t)nfs4_callback_notify_lock, + .decode_args = (callback_decode_arg_t)decode_notify_lock_args, + .res_maxsize = CB_OP_NOTIFY_LOCK_RES_MAXSZ, + }, #endif /* CONFIG_NFS_V4_1 */ }; diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 003ebce4bbc4..7555ba889d1f 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -313,7 +313,10 @@ static struct nfs_client *nfs_match_client(const struct nfs_client_initdata *dat continue; /* Match the full socket address */ if (!rpc_cmp_addr_port(sap, clap)) - continue; + /* Match all xprt_switch full socket addresses */ + if (!rpc_clnt_xprt_switch_has_addr(clp->cl_rpcclient, + sap)) + continue; atomic_inc(&clp->cl_count); return clp; @@ -426,7 +429,7 @@ EXPORT_SYMBOL_GPL(nfs_mark_client_ready); * Initialise the timeout values for a connection */ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, - unsigned int timeo, unsigned int retrans) + int timeo, int retrans) { to->to_initval = timeo * HZ / 10; to->to_retries = retrans; @@ -434,9 +437,9 @@ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, switch (proto) { case XPRT_TRANSPORT_TCP: case XPRT_TRANSPORT_RDMA: - if (to->to_retries == 0) + if (retrans == NFS_UNSPEC_RETRANS) to->to_retries = NFS_DEF_TCP_RETRANS; - if (to->to_initval == 0) + if (timeo == NFS_UNSPEC_TIMEO || to->to_retries == 0) to->to_initval = NFS_DEF_TCP_TIMEO * HZ / 10; if (to->to_initval > NFS_MAX_TCP_TIMEOUT) to->to_initval = NFS_MAX_TCP_TIMEOUT; @@ -449,9 +452,9 @@ void nfs_init_timeout_values(struct rpc_timeout *to, int proto, to->to_exponential = 0; break; case XPRT_TRANSPORT_UDP: - if (to->to_retries == 0) + if (retrans == NFS_UNSPEC_RETRANS) to->to_retries = NFS_DEF_UDP_RETRANS; - if (!to->to_initval) + if (timeo == NFS_UNSPEC_TIMEO || to->to_initval == 0) to->to_initval = NFS_DEF_UDP_TIMEO * HZ / 10; if (to->to_initval > NFS_MAX_UDP_TIMEOUT) to->to_initval = NFS_MAX_UDP_TIMEOUT; @@ -785,7 +788,8 @@ int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs } fsinfo.fattr = fattr; - fsinfo.layouttype = 0; + fsinfo.nlayouttypes = 0; + memset(fsinfo.layouttype, 0, sizeof(fsinfo.layouttype)); error = clp->rpc_ops->fsinfo(server, mntfh, &fsinfo); if (error < 0) goto out_error; @@ -1078,7 +1082,7 @@ void nfs_clients_init(struct net *net) idr_init(&nn->cb_ident_idr); #endif spin_lock_init(&nn->nfs_client_lock); - nn->boot_time = CURRENT_TIME; + nn->boot_time = ktime_get_real(); } #ifdef CONFIG_PROC_FS diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 322c2585bc34..dff600ae0d74 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -41,6 +41,17 @@ void nfs_mark_delegation_referenced(struct nfs_delegation *delegation) set_bit(NFS_DELEGATION_REFERENCED, &delegation->flags); } +static bool +nfs4_is_valid_delegation(const struct nfs_delegation *delegation, + fmode_t flags) +{ + if (delegation != NULL && (delegation->type & flags) == flags && + !test_bit(NFS_DELEGATION_REVOKED, &delegation->flags) && + !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) + return true; + return false; +} + static int nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) { @@ -50,8 +61,7 @@ nfs4_do_check_delegation(struct inode *inode, fmode_t flags, bool mark) flags &= FMODE_READ|FMODE_WRITE; rcu_read_lock(); delegation = rcu_dereference(NFS_I(inode)->delegation); - if (delegation != NULL && (delegation->type & flags) == flags && - !test_bit(NFS_DELEGATION_RETURNING, &delegation->flags)) { + if (nfs4_is_valid_delegation(delegation, flags)) { if (mark) nfs_mark_delegation_referenced(delegation); ret = 1; @@ -185,15 +195,13 @@ void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, rcu_read_unlock(); put_rpccred(oldcred); trace_nfs4_reclaim_delegation(inode, res->delegation_type); - } else { - /* We appear to have raced with a delegation return. */ - spin_unlock(&delegation->lock); - rcu_read_unlock(); - nfs_inode_set_delegation(inode, cred, res); + return; } - } else { - rcu_read_unlock(); + /* We appear to have raced with a delegation return. */ + spin_unlock(&delegation->lock); } + rcu_read_unlock(); + nfs_inode_set_delegation(inode, cred, res); } static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *delegation, int issync) @@ -642,28 +650,49 @@ static void nfs_client_mark_return_unused_delegation_types(struct nfs_client *cl rcu_read_unlock(); } -static void nfs_revoke_delegation(struct inode *inode) +static void nfs_mark_delegation_revoked(struct nfs_server *server, + struct nfs_delegation *delegation) +{ + set_bit(NFS_DELEGATION_REVOKED, &delegation->flags); + delegation->stateid.type = NFS4_INVALID_STATEID_TYPE; + nfs_mark_return_delegation(server, delegation); +} + +static bool nfs_revoke_delegation(struct inode *inode, + const nfs4_stateid *stateid) { struct nfs_delegation *delegation; + nfs4_stateid tmp; + bool ret = false; + rcu_read_lock(); delegation = rcu_dereference(NFS_I(inode)->delegation); - if (delegation != NULL) { - set_bit(NFS_DELEGATION_REVOKED, &delegation->flags); - nfs_mark_return_delegation(NFS_SERVER(inode), delegation); - } + if (delegation == NULL) + goto out; + if (stateid == NULL) { + nfs4_stateid_copy(&tmp, &delegation->stateid); + stateid = &tmp; + } else if (!nfs4_stateid_match(stateid, &delegation->stateid)) + goto out; + nfs_mark_delegation_revoked(NFS_SERVER(inode), delegation); + ret = true; +out: rcu_read_unlock(); + if (ret) + nfs_inode_find_state_and_recover(inode, stateid); + return ret; } -void nfs_remove_bad_delegation(struct inode *inode) +void nfs_remove_bad_delegation(struct inode *inode, + const nfs4_stateid *stateid) { struct nfs_delegation *delegation; - nfs_revoke_delegation(inode); + if (!nfs_revoke_delegation(inode, stateid)) + return; delegation = nfs_inode_detach_delegation(inode); - if (delegation) { - nfs_inode_find_state_and_recover(inode, &delegation->stateid); + if (delegation) nfs_free_delegation(delegation); - } } EXPORT_SYMBOL_GPL(nfs_remove_bad_delegation); @@ -786,8 +815,15 @@ static void nfs_delegation_mark_reclaim_server(struct nfs_server *server) { struct nfs_delegation *delegation; - list_for_each_entry_rcu(delegation, &server->delegations, super_list) + list_for_each_entry_rcu(delegation, &server->delegations, super_list) { + /* + * If the delegation may have been admin revoked, then we + * cannot reclaim it. + */ + if (test_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) + continue; set_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags); + } } /** @@ -851,6 +887,141 @@ restart: rcu_read_unlock(); } +static inline bool nfs4_server_rebooted(const struct nfs_client *clp) +{ + return (clp->cl_state & (BIT(NFS4CLNT_CHECK_LEASE) | + BIT(NFS4CLNT_LEASE_EXPIRED) | + BIT(NFS4CLNT_SESSION_RESET))) != 0; +} + +static void nfs_mark_test_expired_delegation(struct nfs_server *server, + struct nfs_delegation *delegation) +{ + if (delegation->stateid.type == NFS4_INVALID_STATEID_TYPE) + return; + clear_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags); + set_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags); + set_bit(NFS4CLNT_DELEGATION_EXPIRED, &server->nfs_client->cl_state); +} + +static void nfs_inode_mark_test_expired_delegation(struct nfs_server *server, + struct inode *inode) +{ + struct nfs_delegation *delegation; + + rcu_read_lock(); + delegation = rcu_dereference(NFS_I(inode)->delegation); + if (delegation) + nfs_mark_test_expired_delegation(server, delegation); + rcu_read_unlock(); + +} + +static void nfs_delegation_mark_test_expired_server(struct nfs_server *server) +{ + struct nfs_delegation *delegation; + + list_for_each_entry_rcu(delegation, &server->delegations, super_list) + nfs_mark_test_expired_delegation(server, delegation); +} + +/** + * nfs_mark_test_expired_all_delegations - mark all delegations for testing + * @clp: nfs_client to process + * + * Iterates through all the delegations associated with this server and + * marks them as needing to be checked for validity. + */ +void nfs_mark_test_expired_all_delegations(struct nfs_client *clp) +{ + struct nfs_server *server; + + rcu_read_lock(); + list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) + nfs_delegation_mark_test_expired_server(server); + rcu_read_unlock(); +} + +/** + * nfs_reap_expired_delegations - reap expired delegations + * @clp: nfs_client to process + * + * Iterates through all the delegations associated with this server and + * checks if they have may have been revoked. This function is usually + * expected to be called in cases where the server may have lost its + * lease. + */ +void nfs_reap_expired_delegations(struct nfs_client *clp) +{ + const struct nfs4_minor_version_ops *ops = clp->cl_mvops; + struct nfs_delegation *delegation; + struct nfs_server *server; + struct inode *inode; + struct rpc_cred *cred; + nfs4_stateid stateid; + +restart: + rcu_read_lock(); + list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) { + list_for_each_entry_rcu(delegation, &server->delegations, + super_list) { + if (test_bit(NFS_DELEGATION_RETURNING, + &delegation->flags)) + continue; + if (test_bit(NFS_DELEGATION_TEST_EXPIRED, + &delegation->flags) == 0) + continue; + if (!nfs_sb_active(server->super)) + continue; + inode = nfs_delegation_grab_inode(delegation); + if (inode == NULL) { + rcu_read_unlock(); + nfs_sb_deactive(server->super); + goto restart; + } + cred = get_rpccred_rcu(delegation->cred); + nfs4_stateid_copy(&stateid, &delegation->stateid); + clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags); + rcu_read_unlock(); + if (cred != NULL && + ops->test_and_free_expired(server, &stateid, cred) < 0) { + nfs_revoke_delegation(inode, &stateid); + nfs_inode_find_state_and_recover(inode, &stateid); + } + put_rpccred(cred); + if (nfs4_server_rebooted(clp)) { + nfs_inode_mark_test_expired_delegation(server,inode); + iput(inode); + nfs_sb_deactive(server->super); + return; + } + iput(inode); + nfs_sb_deactive(server->super); + goto restart; + } + } + rcu_read_unlock(); +} + +void nfs_inode_find_delegation_state_and_recover(struct inode *inode, + const nfs4_stateid *stateid) +{ + struct nfs_client *clp = NFS_SERVER(inode)->nfs_client; + struct nfs_delegation *delegation; + bool found = false; + + rcu_read_lock(); + delegation = rcu_dereference(NFS_I(inode)->delegation); + if (delegation && + nfs4_stateid_match_other(&delegation->stateid, stateid)) { + nfs_mark_test_expired_delegation(NFS_SERVER(inode), delegation); + found = true; + } + rcu_read_unlock(); + if (found) + nfs4_schedule_state_manager(clp); +} + /** * nfs_delegations_present - check for existence of delegations * @clp: client state handle @@ -893,7 +1064,7 @@ bool nfs4_copy_delegation_stateid(struct inode *inode, fmode_t flags, flags &= FMODE_READ|FMODE_WRITE; rcu_read_lock(); delegation = rcu_dereference(nfsi->delegation); - ret = (delegation != NULL && (delegation->type & flags) == flags); + ret = nfs4_is_valid_delegation(delegation, flags); if (ret) { nfs4_stateid_copy(dst, &delegation->stateid); nfs_mark_delegation_referenced(delegation); diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index 64724d252a79..e9d555796873 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -32,6 +32,7 @@ enum { NFS_DELEGATION_REFERENCED, NFS_DELEGATION_RETURNING, NFS_DELEGATION_REVOKED, + NFS_DELEGATION_TEST_EXPIRED, }; int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res); @@ -47,11 +48,14 @@ void nfs_expire_unused_delegation_types(struct nfs_client *clp, fmode_t flags); void nfs_expire_unreferenced_delegations(struct nfs_client *clp); int nfs_client_return_marked_delegations(struct nfs_client *clp); int nfs_delegations_present(struct nfs_client *clp); -void nfs_remove_bad_delegation(struct inode *inode); +void nfs_remove_bad_delegation(struct inode *inode, const nfs4_stateid *stateid); void nfs_delegation_mark_reclaim(struct nfs_client *clp); void nfs_delegation_reap_unclaimed(struct nfs_client *clp); +void nfs_mark_test_expired_all_delegations(struct nfs_client *clp); +void nfs_reap_expired_delegations(struct nfs_client *clp); + /* NFSv4 delegation-related procedures */ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid, int issync); int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid, fmode_t type); @@ -62,6 +66,8 @@ void nfs_mark_delegation_referenced(struct nfs_delegation *delegation); int nfs4_have_delegation(struct inode *inode, fmode_t flags); int nfs4_check_delegation(struct inode *inode, fmode_t flags); bool nfs4_delegation_flush_on_close(const struct inode *inode); +void nfs_inode_find_delegation_state_and_recover(struct inode *inode, + const nfs4_stateid *stateid); #endif diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 177fefb26c18..5f1af4cd1a33 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -435,11 +435,11 @@ int nfs_same_file(struct dentry *dentry, struct nfs_entry *entry) return 0; nfsi = NFS_I(inode); - if (entry->fattr->fileid == nfsi->fileid) - return 1; - if (nfs_compare_fh(entry->fh, &nfsi->fh) == 0) - return 1; - return 0; + if (entry->fattr->fileid != nfsi->fileid) + return 0; + if (entry->fh->size && nfs_compare_fh(entry->fh, &nfsi->fh) != 0) + return 0; + return 1; } static @@ -496,6 +496,14 @@ void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry) return; if (!(entry->fattr->valid & NFS_ATTR_FATTR_FSID)) return; + if (filename.len == 0) + return; + /* Validate that the name doesn't contain any illegal '\0' */ + if (strnlen(filename.name, filename.len) != filename.len) + return; + /* ...or '/' */ + if (strnchr(filename.name, filename.len, '/')) + return; if (filename.name[0] == '.') { if (filename.len == 1) return; @@ -517,6 +525,8 @@ again: &entry->fattr->fsid)) goto out; if (nfs_same_file(dentry, entry)) { + if (!entry->fh->size) + goto out; nfs_set_verifier(dentry, nfs_save_change_attribute(dir)); status = nfs_refresh_inode(d_inode(dentry), entry->fattr); if (!status) @@ -529,6 +539,10 @@ again: goto again; } } + if (!entry->fh->size) { + d_lookup_done(dentry); + goto out; + } inode = nfs_fhget(dentry->d_sb, entry->fh, entry->fattr, entry->label); alias = d_splice_alias(inode, dentry); @@ -2013,7 +2027,8 @@ EXPORT_SYMBOL_GPL(nfs_link); * the rename. */ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) + struct inode *new_dir, struct dentry *new_dentry, + unsigned int flags) { struct inode *old_inode = d_inode(old_dentry); struct inode *new_inode = d_inode(new_dentry); @@ -2021,6 +2036,9 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct rpc_task *task; int error = -EBUSY; + if (flags) + return -EINVAL; + dfprintk(VFS, "NFS: rename(%pd2 -> %pd2, ct=%d)\n", old_dentry, new_dentry, d_count(new_dentry)); diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 72b7d13ee3c6..bd81bcf3ffcf 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -387,7 +387,7 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq) dreq->iocb->ki_complete(dreq->iocb, res, 0); } - complete_all(&dreq->completion); + complete(&dreq->completion); nfs_direct_req_release(dreq); } diff --git a/fs/nfs/file.c b/fs/nfs/file.c index 7d620970f2e1..9ea85ae23c32 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -182,29 +182,6 @@ nfs_file_read(struct kiocb *iocb, struct iov_iter *to) } EXPORT_SYMBOL_GPL(nfs_file_read); -ssize_t -nfs_file_splice_read(struct file *filp, loff_t *ppos, - struct pipe_inode_info *pipe, size_t count, - unsigned int flags) -{ - struct inode *inode = file_inode(filp); - ssize_t res; - - dprintk("NFS: splice_read(%pD2, %lu@%Lu)\n", - filp, (unsigned long) count, (unsigned long long) *ppos); - - nfs_start_io_read(inode); - res = nfs_revalidate_mapping(inode, filp->f_mapping); - if (!res) { - res = generic_file_splice_read(filp, ppos, pipe, count, flags); - if (res > 0) - nfs_add_stats(inode, NFSIOS_NORMALREADBYTES, res); - } - nfs_end_io_read(inode); - return res; -} -EXPORT_SYMBOL_GPL(nfs_file_splice_read); - int nfs_file_mmap(struct file * file, struct vm_area_struct * vma) { @@ -543,7 +520,9 @@ const struct address_space_operations nfs_file_aops = { .invalidatepage = nfs_invalidate_page, .releasepage = nfs_release_page, .direct_IO = nfs_direct_IO, +#ifdef CONFIG_MIGRATION .migratepage = nfs_migrate_page, +#endif .launder_page = nfs_launder_page, .is_dirty_writeback = nfs_check_dirty_writeback, .error_remove_page = generic_error_remove_page, @@ -657,7 +636,10 @@ ssize_t nfs_file_write(struct kiocb *iocb, struct iov_iter *from) if (result <= 0) goto out; - written = generic_write_sync(iocb, result); + result = generic_write_sync(iocb, result); + if (result < 0) + goto out; + written = result; iocb->ki_pos += written; /* Return error values */ @@ -705,11 +687,6 @@ out_noconflict: goto out; } -static int do_vfs_lock(struct file *file, struct file_lock *fl) -{ - return locks_lock_file_wait(file, fl); -} - static int do_unlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) { @@ -742,7 +719,7 @@ do_unlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) if (!is_local) status = NFS_PROTO(inode)->lock(filp, cmd, fl); else - status = do_vfs_lock(filp, fl); + status = locks_lock_file_wait(filp, fl); return status; } @@ -767,7 +744,7 @@ do_setlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) if (!is_local) status = NFS_PROTO(inode)->lock(filp, cmd, fl); else - status = do_vfs_lock(filp, fl); + status = locks_lock_file_wait(filp, fl); if (status < 0) goto out; @@ -868,7 +845,7 @@ const struct file_operations nfs_file_operations = { .fsync = nfs_file_fsync, .lock = nfs_lock, .flock = nfs_flock, - .splice_read = nfs_file_splice_read, + .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .check_flags = nfs_check_flags, .setlease = simple_nosetlease, diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index e6206eaf2bdf..98ace127bf86 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -37,6 +37,7 @@ ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) if (ffl) { INIT_LIST_HEAD(&ffl->error_list); INIT_LIST_HEAD(&ffl->mirrors); + ffl->last_report_time = ktime_get(); return &ffl->generic_hdr; } else return NULL; @@ -640,19 +641,18 @@ nfs4_ff_layoutstat_start_io(struct nfs4_ff_layout_mirror *mirror, { static const ktime_t notime = {0}; s64 report_interval = FF_LAYOUTSTATS_REPORT_INTERVAL; + struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(mirror->layout); nfs4_ff_start_busy_timer(&layoutstat->busy_timer, now); if (ktime_equal(mirror->start_time, notime)) mirror->start_time = now; - if (ktime_equal(mirror->last_report_time, notime)) - mirror->last_report_time = now; if (mirror->report_interval != 0) report_interval = (s64)mirror->report_interval * 1000LL; else if (layoutstats_timer != 0) report_interval = (s64)layoutstats_timer * 1000LL; - if (ktime_to_ms(ktime_sub(now, mirror->last_report_time)) >= + if (ktime_to_ms(ktime_sub(now, ffl->last_report_time)) >= report_interval) { - mirror->last_report_time = now; + ffl->last_report_time = now; return true; } @@ -806,11 +806,14 @@ ff_layout_choose_best_ds_for_read(struct pnfs_layout_segment *lseg, { struct nfs4_ff_layout_segment *fls = FF_LAYOUT_LSEG(lseg); struct nfs4_pnfs_ds *ds; + bool fail_return = false; int idx; /* mirrors are sorted by efficiency */ for (idx = start_idx; idx < fls->mirror_array_cnt; idx++) { - ds = nfs4_ff_layout_prepare_ds(lseg, idx, false); + if (idx+1 == fls->mirror_array_cnt) + fail_return = true; + ds = nfs4_ff_layout_prepare_ds(lseg, idx, fail_return); if (ds) { *best_idx = idx; return ds; @@ -859,6 +862,7 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs4_pnfs_ds *ds; int ds_idx; +retry: /* Use full layout for now */ if (!pgio->pg_lseg) ff_layout_pg_get_read(pgio, req, false); @@ -871,10 +875,13 @@ ff_layout_pg_init_read(struct nfs_pageio_descriptor *pgio, ds = ff_layout_choose_best_ds_for_read(pgio->pg_lseg, 0, &ds_idx); if (!ds) { - if (ff_layout_no_fallback_to_mds(pgio->pg_lseg)) - goto out_pnfs; - else + if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) goto out_mds; + pnfs_put_lseg(pgio->pg_lseg); + pgio->pg_lseg = NULL; + /* Sleep for 1 second before retrying */ + ssleep(1); + goto retry; } mirror = FF_LAYOUT_COMP(pgio->pg_lseg, ds_idx); @@ -890,12 +897,6 @@ out_mds: pnfs_put_lseg(pgio->pg_lseg); pgio->pg_lseg = NULL; nfs_pageio_reset_read_mds(pgio); - return; - -out_pnfs: - pnfs_set_lo_fail(pgio->pg_lseg); - pnfs_put_lseg(pgio->pg_lseg); - pgio->pg_lseg = NULL; } static void @@ -909,6 +910,7 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, int i; int status; +retry: if (!pgio->pg_lseg) { pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode, req->wb_context, @@ -940,10 +942,13 @@ ff_layout_pg_init_write(struct nfs_pageio_descriptor *pgio, for (i = 0; i < pgio->pg_mirror_count; i++) { ds = nfs4_ff_layout_prepare_ds(pgio->pg_lseg, i, true); if (!ds) { - if (ff_layout_no_fallback_to_mds(pgio->pg_lseg)) - goto out_pnfs; - else + if (!ff_layout_no_fallback_to_mds(pgio->pg_lseg)) goto out_mds; + pnfs_put_lseg(pgio->pg_lseg); + pgio->pg_lseg = NULL; + /* Sleep for 1 second before retrying */ + ssleep(1); + goto retry; } pgm = &pgio->pg_mirrors[i]; mirror = FF_LAYOUT_COMP(pgio->pg_lseg, i); @@ -956,12 +961,6 @@ out_mds: pnfs_put_lseg(pgio->pg_lseg); pgio->pg_lseg = NULL; nfs_pageio_reset_write_mds(pgio); - return; - -out_pnfs: - pnfs_set_lo_fail(pgio->pg_lseg); - pnfs_put_lseg(pgio->pg_lseg); - pgio->pg_lseg = NULL; } static unsigned int @@ -1081,7 +1080,7 @@ static int ff_layout_async_handle_error_v4(struct rpc_task *task, case -NFS4ERR_BAD_STATEID: if (state == NULL) break; - nfs_remove_bad_delegation(state->inode); + nfs_remove_bad_delegation(state->inode, NULL); case -NFS4ERR_OPENMODE: if (state == NULL) break; diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h index 1bcdb15d0c41..3ee0c9fcea76 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.h +++ b/fs/nfs/flexfilelayout/flexfilelayout.h @@ -84,7 +84,6 @@ struct nfs4_ff_layout_mirror { struct nfs4_ff_layoutstat read_stat; struct nfs4_ff_layoutstat write_stat; ktime_t start_time; - ktime_t last_report_time; u32 report_interval; }; @@ -101,6 +100,7 @@ struct nfs4_flexfile_layout { struct pnfs_ds_commit_info commit_info; struct list_head mirrors; struct list_head error_list; /* nfs4_ff_layout_ds_err */ + ktime_t last_report_time; /* Layoutstat report times */ }; static inline struct nfs4_flexfile_layout * diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c index 0aa36be71fce..f7a3f6b05369 100644 --- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c +++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c @@ -17,8 +17,8 @@ #define NFSDBG_FACILITY NFSDBG_PNFS_LD -static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO; -static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS; +static unsigned int dataserver_timeo = NFS_DEF_TCP_RETRANS; +static unsigned int dataserver_retrans; void nfs4_ff_layout_put_deviceid(struct nfs4_ff_layout_ds *mirror_ds) { @@ -379,7 +379,7 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx, devid = &mirror->mirror_ds->id_node; if (ff_layout_test_devid_unavailable(devid)) - goto out; + goto out_fail; ds = mirror->mirror_ds->ds; /* matching smp_wmb() in _nfs4_pnfs_v3/4_ds_connect */ @@ -405,15 +405,16 @@ nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg, u32 ds_idx, mirror->mirror_ds->ds_versions[0].rsize = max_payload; if (mirror->mirror_ds->ds_versions[0].wsize > max_payload) mirror->mirror_ds->ds_versions[0].wsize = max_payload; - } else { - ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout), - mirror, lseg->pls_range.offset, - lseg->pls_range.length, NFS4ERR_NXIO, - OP_ILLEGAL, GFP_NOIO); - if (fail_return || !ff_layout_has_available_ds(lseg)) - pnfs_error_mark_layout_for_return(ino, lseg); - ds = NULL; + goto out; } + ff_layout_track_ds_error(FF_LAYOUT_FROM_HDR(lseg->pls_layout), + mirror, lseg->pls_range.offset, + lseg->pls_range.length, NFS4ERR_NXIO, + OP_ILLEGAL, GFP_NOIO); +out_fail: + if (fail_return || !ff_layout_has_available_ds(lseg)) + pnfs_error_mark_layout_for_return(ino, lseg); + ds = NULL; out: return ds; } diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7ce5e023c3c3..80bcc0befb07 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -58,6 +58,9 @@ struct nfs_clone_mount { */ #define NFS_UNSPEC_PORT (-1) +#define NFS_UNSPEC_RETRANS (UINT_MAX) +#define NFS_UNSPEC_TIMEO (UINT_MAX) + /* * Maximum number of pages that readdir can use for creating * a vmapped array of pages. @@ -156,7 +159,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *, int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *); void nfs_server_insert_lists(struct nfs_server *); void nfs_server_remove_lists(struct nfs_server *); -void nfs_init_timeout_values(struct rpc_timeout *, int, unsigned int, unsigned int); +void nfs_init_timeout_values(struct rpc_timeout *to, int proto, int timeo, int retrans); int nfs_init_server_rpcclient(struct nfs_server *, const struct rpc_timeout *t, rpc_authflavor_t); struct nfs_server *nfs_alloc_server(void); @@ -356,14 +359,13 @@ int nfs_unlink(struct inode *, struct dentry *); int nfs_symlink(struct inode *, struct dentry *, const char *); int nfs_link(struct dentry *, struct inode *, struct dentry *); int nfs_mknod(struct inode *, struct dentry *, umode_t, dev_t); -int nfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); +int nfs_rename(struct inode *, struct dentry *, + struct inode *, struct dentry *, unsigned int); /* file.c */ int nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync); loff_t nfs_file_llseek(struct file *, loff_t, int); ssize_t nfs_file_read(struct kiocb *, struct iov_iter *); -ssize_t nfs_file_splice_read(struct file *, loff_t *, struct pipe_inode_info *, - size_t, unsigned int); int nfs_file_mmap(struct file *, struct vm_area_struct *); ssize_t nfs_file_write(struct kiocb *, struct iov_iter *); int nfs_file_release(struct inode *, struct file *); @@ -532,12 +534,9 @@ void nfs_clear_pnfs_ds_commit_verifiers(struct pnfs_ds_commit_info *cinfo) } #endif - #ifdef CONFIG_MIGRATION extern int nfs_migrate_page(struct address_space *, struct page *, struct page *, enum migrate_mode); -#else -#define nfs_migrate_page NULL #endif static inline int @@ -560,7 +559,6 @@ void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo, extern ssize_t nfs_dreq_bytes_left(struct nfs_direct_req *dreq); /* nfs4proc.c */ -extern void __nfs4_read_done_cb(struct nfs_pgio_header *); extern struct nfs_client *nfs4_init_client(struct nfs_client *clp, const struct nfs_client_initdata *); extern int nfs40_walk_client_list(struct nfs_client *clp, @@ -569,6 +567,9 @@ extern int nfs40_walk_client_list(struct nfs_client *clp, extern int nfs41_walk_client_list(struct nfs_client *clp, struct nfs_client **result, struct rpc_cred *cred); +extern int nfs4_test_session_trunk(struct rpc_clnt *, + struct rpc_xprt *, + void *); static inline struct inode *nfs_igrab_and_active(struct inode *inode) { @@ -678,11 +679,11 @@ unsigned int nfs_page_length(struct page *page) loff_t i_size = i_size_read(page_file_mapping(page)->host); if (i_size > 0) { - pgoff_t page_index = page_file_index(page); + pgoff_t index = page_index(page); pgoff_t end_index = (i_size - 1) >> PAGE_SHIFT; - if (page_index < end_index) + if (index < end_index) return PAGE_SIZE; - if (page_index == end_index) + if (index == end_index) return ((i_size - 1) & ~PAGE_MASK) + 1; } return 0; diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h index f0e06e4acbef..fbce0d885d4c 100644 --- a/fs/nfs/netns.h +++ b/fs/nfs/netns.h @@ -29,7 +29,7 @@ struct nfs_net { int cb_users[NFS4_MAX_MINOR_VERSION + 1]; #endif spinlock_t nfs_client_lock; - struct timespec boot_time; + ktime_t boot_time; #ifdef CONFIG_PROC_FS struct proc_dir_entry *proc_nfsfs; #endif diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index 698be9361280..dc925b531f32 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c @@ -899,9 +899,6 @@ static const struct inode_operations nfs3_dir_inode_operations = { .setattr = nfs_setattr, #ifdef CONFIG_NFS_V3_ACL .listxattr = nfs3_listxattr, - .getxattr = generic_getxattr, - .setxattr = generic_setxattr, - .removexattr = generic_removexattr, .get_acl = nfs3_get_acl, .set_acl = nfs3_set_acl, #endif @@ -913,9 +910,6 @@ static const struct inode_operations nfs3_file_inode_operations = { .setattr = nfs_setattr, #ifdef CONFIG_NFS_V3_ACL .listxattr = nfs3_listxattr, - .getxattr = generic_getxattr, - .setxattr = generic_setxattr, - .removexattr = generic_removexattr, .get_acl = nfs3_get_acl, .set_acl = nfs3_set_acl, #endif diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 33da841a21bb..608501971fe0 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -318,10 +318,22 @@ static void nfs42_layoutstat_prepare(struct rpc_task *task, void *calldata) { struct nfs42_layoutstat_data *data = calldata; - struct nfs_server *server = NFS_SERVER(data->args.inode); + struct inode *inode = data->inode; + struct nfs_server *server = NFS_SERVER(inode); + struct pnfs_layout_hdr *lo; + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (!pnfs_layout_is_valid(lo)) { + spin_unlock(&inode->i_lock); + rpc_exit(task, 0); + return; + } + nfs4_stateid_copy(&data->args.stateid, &lo->plh_stateid); + spin_unlock(&inode->i_lock); nfs41_setup_sequence(nfs4_get_session(server), &data->args.seq_args, &data->res.seq_res, task); + } static void @@ -338,12 +350,14 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata) case 0: break; case -NFS4ERR_EXPIRED: + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_OLD_STATEID: case -NFS4ERR_BAD_STATEID: spin_lock(&inode->i_lock); lo = NFS_I(inode)->layout; - if (lo && nfs4_stateid_match(&data->args.stateid, + if (pnfs_layout_is_valid(lo) && + nfs4_stateid_match(&data->args.stateid, &lo->plh_stateid)) { LIST_HEAD(head); @@ -357,11 +371,23 @@ nfs42_layoutstat_done(struct rpc_task *task, void *calldata) } else spin_unlock(&inode->i_lock); break; + case -NFS4ERR_OLD_STATEID: + spin_lock(&inode->i_lock); + lo = NFS_I(inode)->layout; + if (pnfs_layout_is_valid(lo) && + nfs4_stateid_match_other(&data->args.stateid, + &lo->plh_stateid)) { + /* Do we need to delay before resending? */ + if (!nfs4_stateid_is_newer(&lo->plh_stateid, + &data->args.stateid)) + rpc_delay(task, HZ); + rpc_restart_call_prepare(task); + } + spin_unlock(&inode->i_lock); + break; case -ENOTSUPP: case -EOPNOTSUPP: NFS_SERVER(inode)->caps &= ~NFS_CAP_LAYOUTSTATS; - default: - break; } dprintk("%s server returns %d\n", __func__, task->tk_status); @@ -417,6 +443,7 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *server, task = rpc_run_task(&task_setup); if (IS_ERR(task)) return PTR_ERR(task); + rpc_put_task(task); return 0; } diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 324bfdc21250..9b3a82abab07 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -39,6 +39,7 @@ enum nfs4_client_state { NFS4CLNT_BIND_CONN_TO_SESSION, NFS4CLNT_MOVED, NFS4CLNT_LEASE_MOVED, + NFS4CLNT_DELEGATION_EXPIRED, }; #define NFS4_RENEW_TIMEOUT 0x01 @@ -57,8 +58,11 @@ struct nfs4_minor_version_ops { struct nfs_fsinfo *); void (*free_lock_state)(struct nfs_server *, struct nfs4_lock_state *); + int (*test_and_free_expired)(struct nfs_server *, + nfs4_stateid *, struct rpc_cred *); struct nfs_seqid * (*alloc_seqid)(struct nfs_seqid_counter *, gfp_t); + int (*session_trunk)(struct rpc_clnt *, struct rpc_xprt *, void *); const struct rpc_call_ops *call_sync_ops; const struct nfs4_state_recovery_ops *reboot_recovery_ops; const struct nfs4_state_recovery_ops *nograce_recovery_ops; @@ -156,6 +160,7 @@ enum { NFS_STATE_RECLAIM_NOGRACE, /* OPEN stateid needs to recover state */ NFS_STATE_POSIX_LOCKS, /* Posix locks are supported */ NFS_STATE_RECOVERY_FAILED, /* OPEN stateid state recovery failed */ + NFS_STATE_MAY_NOTIFY_LOCK, /* server may CB_NOTIFY_LOCK */ }; struct nfs4_state { @@ -203,6 +208,11 @@ struct nfs4_state_recovery_ops { struct rpc_cred *); }; +struct nfs4_add_xprt_data { + struct nfs_client *clp; + struct rpc_cred *cred; +}; + struct nfs4_state_maintenance_ops { int (*sched_state_renewal)(struct nfs_client *, struct rpc_cred *, unsigned); struct rpc_cred * (*get_state_renewal_cred_locked)(struct nfs_client *); @@ -278,6 +288,8 @@ extern int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo); extern int nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync); +extern int nfs4_detect_session_trunking(struct nfs_client *clp, + struct nfs41_exchange_id_res *res, struct rpc_xprt *xprt); static inline bool is_ds_only_client(struct nfs_client *clp) @@ -396,6 +408,10 @@ extern void nfs4_schedule_state_renewal(struct nfs_client *); extern void nfs4_renewd_prepare_shutdown(struct nfs_server *); extern void nfs4_kill_renewd(struct nfs_client *); extern void nfs4_renew_state(struct work_struct *); +extern void nfs4_set_lease_period(struct nfs_client *clp, + unsigned long lease, + unsigned long lastrenewed); + /* nfs4state.c */ struct rpc_cred *nfs4_get_clid_cred(struct nfs_client *clp); @@ -435,7 +451,7 @@ extern void nfs4_schedule_path_down_recovery(struct nfs_client *clp); extern int nfs4_schedule_stateid_recovery(const struct nfs_server *, struct nfs4_state *); extern int nfs4_schedule_migration_recovery(const struct nfs_server *); extern void nfs4_schedule_lease_moved_recovery(struct nfs_client *); -extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags); +extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags, bool); extern void nfs41_handle_server_scope(struct nfs_client *, struct nfs41_server_scope **); extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp); @@ -467,6 +483,7 @@ extern struct nfs_subversion nfs_v4; struct dentry *nfs4_try_mount(int, const char *, struct nfs_mount_info *, struct nfs_subversion *); extern bool nfs4_disable_idmapping; extern unsigned short max_session_slots; +extern unsigned short max_session_cb_slots; extern unsigned short send_implementation_id; extern bool recover_lost_locks; diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 8d7d08d4f95f..074ac7131459 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -199,6 +199,9 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init) clp->cl_minorversion = cl_init->minorversion; clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion]; clp->cl_mig_gen = 1; +#if IS_ENABLED(CONFIG_NFS_V4_1) + init_waitqueue_head(&clp->cl_lock_waitq); +#endif return clp; error: @@ -562,15 +565,15 @@ out: /* * Returns true if the client IDs match */ -static bool nfs4_match_clientids(struct nfs_client *a, struct nfs_client *b) +static bool nfs4_match_clientids(u64 a, u64 b) { - if (a->cl_clientid != b->cl_clientid) { + if (a != b) { dprintk("NFS: --> %s client ID %llx does not match %llx\n", - __func__, a->cl_clientid, b->cl_clientid); + __func__, a, b); return false; } dprintk("NFS: --> %s client ID %llx matches %llx\n", - __func__, a->cl_clientid, b->cl_clientid); + __func__, a, b); return true; } @@ -578,17 +581,15 @@ static bool nfs4_match_clientids(struct nfs_client *a, struct nfs_client *b) * Returns true if the server major ids match */ static bool -nfs4_check_clientid_trunking(struct nfs_client *a, struct nfs_client *b) +nfs4_check_serverowner_major_id(struct nfs41_server_owner *o1, + struct nfs41_server_owner *o2) { - struct nfs41_server_owner *o1 = a->cl_serverowner; - struct nfs41_server_owner *o2 = b->cl_serverowner; - if (o1->major_id_sz != o2->major_id_sz) goto out_major_mismatch; if (memcmp(o1->major_id, o2->major_id, o1->major_id_sz) != 0) goto out_major_mismatch; - dprintk("NFS: --> %s server owners match\n", __func__); + dprintk("NFS: --> %s server owner major IDs match\n", __func__); return true; out_major_mismatch: @@ -597,6 +598,100 @@ out_major_mismatch: return false; } +/* + * Returns true if server minor ids match + */ +static bool +nfs4_check_serverowner_minor_id(struct nfs41_server_owner *o1, + struct nfs41_server_owner *o2) +{ + /* Check eir_server_owner so_minor_id */ + if (o1->minor_id != o2->minor_id) + goto out_minor_mismatch; + + dprintk("NFS: --> %s server owner minor IDs match\n", __func__); + return true; + +out_minor_mismatch: + dprintk("NFS: --> %s server owner minor IDs do not match\n", __func__); + return false; +} + +/* + * Returns true if the server scopes match + */ +static bool +nfs4_check_server_scope(struct nfs41_server_scope *s1, + struct nfs41_server_scope *s2) +{ + if (s1->server_scope_sz != s2->server_scope_sz) + goto out_scope_mismatch; + if (memcmp(s1->server_scope, s2->server_scope, + s1->server_scope_sz) != 0) + goto out_scope_mismatch; + + dprintk("NFS: --> %s server scopes match\n", __func__); + return true; + +out_scope_mismatch: + dprintk("NFS: --> %s server scopes do not match\n", + __func__); + return false; +} + +/** + * nfs4_detect_session_trunking - Checks for session trunking. + * + * Called after a successful EXCHANGE_ID on a multi-addr connection. + * Upon success, add the transport. + * + * @clp: original mount nfs_client + * @res: result structure from an exchange_id using the original mount + * nfs_client with a new multi_addr transport + * + * Returns zero on success, otherwise -EINVAL + * + * Note: since the exchange_id for the new multi_addr transport uses the + * same nfs_client from the original mount, the cl_owner_id is reused, + * so eir_clientowner is the same. + */ +int nfs4_detect_session_trunking(struct nfs_client *clp, + struct nfs41_exchange_id_res *res, + struct rpc_xprt *xprt) +{ + /* Check eir_clientid */ + if (!nfs4_match_clientids(clp->cl_clientid, res->clientid)) + goto out_err; + + /* Check eir_server_owner so_major_id */ + if (!nfs4_check_serverowner_major_id(clp->cl_serverowner, + res->server_owner)) + goto out_err; + + /* Check eir_server_owner so_minor_id */ + if (!nfs4_check_serverowner_minor_id(clp->cl_serverowner, + res->server_owner)) + goto out_err; + + /* Check eir_server_scope */ + if (!nfs4_check_server_scope(clp->cl_serverscope, res->server_scope)) + goto out_err; + + /* Session trunking passed, add the xprt */ + rpc_clnt_xprt_switch_add_xprt(clp->cl_rpcclient, xprt); + + pr_info("NFS: %s: Session trunking succeeded for %s\n", + clp->cl_hostname, + xprt->address_strings[RPC_DISPLAY_ADDR]); + + return 0; +out_err: + pr_info("NFS: %s: Session trunking failed for %s\n", clp->cl_hostname, + xprt->address_strings[RPC_DISPLAY_ADDR]); + + return -EINVAL; +} + /** * nfs41_walk_client_list - Find nfs_client that matches a client/server owner * @@ -650,7 +745,7 @@ int nfs41_walk_client_list(struct nfs_client *new, if (pos->cl_cons_state != NFS_CS_READY) continue; - if (!nfs4_match_clientids(pos, new)) + if (!nfs4_match_clientids(pos->cl_clientid, new->cl_clientid)) continue; /* @@ -658,7 +753,8 @@ int nfs41_walk_client_list(struct nfs_client *new, * client id trunking. In either case, we want to fall back * to using the existing nfs_client. */ - if (!nfs4_check_clientid_trunking(pos, new)) + if (!nfs4_check_serverowner_major_id(pos->cl_serverowner, + new->cl_serverowner)) continue; /* Unlike NFSv4.0, we know that NFSv4.1 always uses the @@ -817,6 +913,11 @@ static int nfs4_set_client(struct nfs_server *server, goto error; } + if (server->nfs_client == clp) { + error = -ELOOP; + goto error; + } + /* * Query for the lease time on clientid setup or renewal * diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index d085ad794884..89a77950e0b0 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -248,7 +248,7 @@ const struct file_operations nfs4_file_operations = { .fsync = nfs_file_fsync, .lock = nfs_lock, .flock = nfs_flock, - .splice_read = nfs_file_splice_read, + .splice_read = generic_file_splice_read, .splice_write = iter_file_splice_write, .check_flags = nfs_check_flags, .setlease = simple_nosetlease, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a036e93bdf96..ad917bd72b38 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -99,8 +99,8 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, #ifdef CONFIG_NFS_V4_1 static int nfs41_test_stateid(struct nfs_server *, nfs4_stateid *, struct rpc_cred *); -static int nfs41_free_stateid(struct nfs_server *, nfs4_stateid *, - struct rpc_cred *); +static int nfs41_free_stateid(struct nfs_server *, const nfs4_stateid *, + struct rpc_cred *, bool); #endif #ifdef CONFIG_NFS_V4_SECURITY_LABEL @@ -328,6 +328,33 @@ static void nfs4_setup_readdir(u64 cookie, __be32 *verifier, struct dentry *dent kunmap_atomic(start); } +static void nfs4_test_and_free_stateid(struct nfs_server *server, + nfs4_stateid *stateid, + struct rpc_cred *cred) +{ + const struct nfs4_minor_version_ops *ops = server->nfs_client->cl_mvops; + + ops->test_and_free_expired(server, stateid, cred); +} + +static void __nfs4_free_revoked_stateid(struct nfs_server *server, + nfs4_stateid *stateid, + struct rpc_cred *cred) +{ + stateid->type = NFS4_REVOKED_STATEID_TYPE; + nfs4_test_and_free_stateid(server, stateid, cred); +} + +static void nfs4_free_revoked_stateid(struct nfs_server *server, + const nfs4_stateid *stateid, + struct rpc_cred *cred) +{ + nfs4_stateid tmp; + + nfs4_stateid_copy(&tmp, stateid); + __nfs4_free_revoked_stateid(server, &tmp, cred); +} + static long nfs4_update_delay(long *timeout) { long ret; @@ -370,13 +397,23 @@ static int nfs4_do_handle_exception(struct nfs_server *server, exception->delay = 0; exception->recovering = 0; exception->retry = 0; + + if (stateid == NULL && state != NULL) + stateid = &state->stateid; + switch(errorcode) { case 0: return 0; - case -NFS4ERR_OPENMODE: case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: + if (inode != NULL && stateid != NULL) { + nfs_inode_find_state_and_recover(inode, + stateid); + goto wait_on_recovery; + } + case -NFS4ERR_OPENMODE: if (inode) { int err; @@ -395,12 +432,6 @@ static int nfs4_do_handle_exception(struct nfs_server *server, if (ret < 0) break; goto wait_on_recovery; - case -NFS4ERR_EXPIRED: - if (state != NULL) { - ret = nfs4_schedule_stateid_recovery(server, state); - if (ret < 0) - break; - } case -NFS4ERR_STALE_STATEID: case -NFS4ERR_STALE_CLIENTID: nfs4_schedule_lease_recovery(clp); @@ -616,6 +647,7 @@ int nfs40_setup_sequence(struct nfs4_slot_table *tbl, } spin_unlock(&tbl->slot_tbl_lock); + slot->privileged = args->sa_privileged ? 1 : 0; args->sa_slot = slot; res->sr_slot = slot; @@ -634,15 +666,11 @@ out_sleep: } EXPORT_SYMBOL_GPL(nfs40_setup_sequence); -static int nfs40_sequence_done(struct rpc_task *task, - struct nfs4_sequence_res *res) +static void nfs40_sequence_free_slot(struct nfs4_sequence_res *res) { struct nfs4_slot *slot = res->sr_slot; struct nfs4_slot_table *tbl; - if (slot == NULL) - goto out; - tbl = slot->table; spin_lock(&tbl->slot_tbl_lock); if (!nfs41_wake_and_assign_slot(tbl, slot)) @@ -650,7 +678,13 @@ static int nfs40_sequence_done(struct rpc_task *task, spin_unlock(&tbl->slot_tbl_lock); res->sr_slot = NULL; -out: +} + +static int nfs40_sequence_done(struct rpc_task *task, + struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) + nfs40_sequence_free_slot(res); return 1; } @@ -666,6 +700,11 @@ static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res) tbl = slot->table; session = tbl->session; + /* Bump the slot sequence number */ + if (slot->seq_done) + slot->seq_nr++; + slot->seq_done = 0; + spin_lock(&tbl->slot_tbl_lock); /* Be nice to the server: try to ensure that the last transmitted * value for highest_user_slotid <= target_highest_slotid @@ -686,9 +725,12 @@ out_unlock: res->sr_slot = NULL; if (send_new_highest_used_slotid) nfs41_notify_server(session->clp); + if (waitqueue_active(&tbl->slot_waitq)) + wake_up_all(&tbl->slot_waitq); } -int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) +static int nfs41_sequence_process(struct rpc_task *task, + struct nfs4_sequence_res *res) { struct nfs4_session *session; struct nfs4_slot *slot = res->sr_slot; @@ -713,12 +755,20 @@ int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) /* Check the SEQUENCE operation status */ switch (res->sr_status) { case 0: + /* If previous op on slot was interrupted and we reused + * the seq# and got a reply from the cache, then retry + */ + if (task->tk_status == -EREMOTEIO && interrupted) { + ++slot->seq_nr; + goto retry_nowait; + } /* Update the slot's sequence and clientid lease timer */ - ++slot->seq_nr; + slot->seq_done = 1; clp = session->clp; do_renew_lease(clp, res->sr_timestamp); /* Check sequence flags */ - nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags); + nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags, + !!slot->privileged); nfs41_update_target_slotid(slot->table, slot, res); break; case 1: @@ -769,16 +819,16 @@ int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) goto retry_nowait; default: /* Just update the slot sequence no. */ - ++slot->seq_nr; + slot->seq_done = 1; } out: /* The session may be reset by one of the error handlers. */ dprintk("%s: Error %d free the slot \n", __func__, res->sr_status); - nfs41_sequence_free_slot(res); out_noaction: return ret; retry_nowait: if (rpc_restart_call_prepare(task)) { + nfs41_sequence_free_slot(res); task->tk_status = 0; ret = 0; } @@ -789,8 +839,37 @@ out_retry: rpc_delay(task, NFS4_POLL_RETRY_MAX); return 0; } + +int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + if (!nfs41_sequence_process(task, res)) + return 0; + if (res->sr_slot != NULL) + nfs41_sequence_free_slot(res); + return 1; + +} EXPORT_SYMBOL_GPL(nfs41_sequence_done); +static int nfs4_sequence_process(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + if (res->sr_slot == NULL) + return 1; + if (res->sr_slot->table->session != NULL) + return nfs41_sequence_process(task, res); + return nfs40_sequence_done(task, res); +} + +static void nfs4_sequence_free_slot(struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) { + if (res->sr_slot->table->session != NULL) + nfs41_sequence_free_slot(res); + else + nfs40_sequence_free_slot(res); + } +} + int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) { if (res->sr_slot == NULL) @@ -836,6 +915,7 @@ int nfs41_setup_sequence(struct nfs4_session *session, } spin_unlock(&tbl->slot_tbl_lock); + slot->privileged = args->sa_privileged ? 1 : 0; args->sa_slot = slot; dprintk("<-- %s slotid=%u seqid=%u\n", __func__, @@ -920,6 +1000,17 @@ static int nfs4_setup_sequence(const struct nfs_server *server, args, res, task); } +static int nfs4_sequence_process(struct rpc_task *task, struct nfs4_sequence_res *res) +{ + return nfs40_sequence_done(task, res); +} + +static void nfs4_sequence_free_slot(struct nfs4_sequence_res *res) +{ + if (res->sr_slot != NULL) + nfs40_sequence_free_slot(res); +} + int nfs4_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res) { @@ -1197,6 +1288,7 @@ static void nfs4_opendata_free(struct kref *kref) struct super_block *sb = p->dentry->d_sb; nfs_free_seqid(p->o_arg.seqid); + nfs4_sequence_free_slot(&p->o_res.seq_res); if (p->state != NULL) nfs4_put_open_state(p->state); nfs4_put_state_owner(p->owner); @@ -1302,6 +1394,19 @@ static void update_open_stateflags(struct nfs4_state *state, fmode_t fmode) nfs4_state_set_mode_locked(state, state->state | fmode); } +#ifdef CONFIG_NFS_V4_1 +static bool nfs_open_stateid_recover_openmode(struct nfs4_state *state) +{ + if (state->n_rdonly && !test_bit(NFS_O_RDONLY_STATE, &state->flags)) + return true; + if (state->n_wronly && !test_bit(NFS_O_WRONLY_STATE, &state->flags)) + return true; + if (state->n_rdwr && !test_bit(NFS_O_RDWR_STATE, &state->flags)) + return true; + return false; +} +#endif /* CONFIG_NFS_V4_1 */ + static void nfs_test_and_clear_all_open_stateid(struct nfs4_state *state) { struct nfs_client *clp = state->owner->so_server->nfs_client; @@ -1318,11 +1423,12 @@ static void nfs_test_and_clear_all_open_stateid(struct nfs4_state *state) } static bool nfs_need_update_open_stateid(struct nfs4_state *state, - nfs4_stateid *stateid) + const nfs4_stateid *stateid, nfs4_stateid *freeme) { if (test_and_set_bit(NFS_OPEN_STATE, &state->flags) == 0) return true; if (!nfs4_stateid_match_other(stateid, &state->open_stateid)) { + nfs4_stateid_copy(freeme, &state->open_stateid); nfs_test_and_clear_all_open_stateid(state); return true; } @@ -1386,7 +1492,9 @@ static void nfs_clear_open_stateid(struct nfs4_state *state, nfs4_schedule_state_manager(state->owner->so_server->nfs_client); } -static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode) +static void nfs_set_open_stateid_locked(struct nfs4_state *state, + const nfs4_stateid *stateid, fmode_t fmode, + nfs4_stateid *freeme) { switch (fmode) { case FMODE_READ: @@ -1398,14 +1506,18 @@ static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid * case FMODE_READ|FMODE_WRITE: set_bit(NFS_O_RDWR_STATE, &state->flags); } - if (!nfs_need_update_open_stateid(state, stateid)) + if (!nfs_need_update_open_stateid(state, stateid, freeme)) return; if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) nfs4_stateid_copy(&state->stateid, stateid); nfs4_stateid_copy(&state->open_stateid, stateid); } -static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, const nfs4_stateid *deleg_stateid, fmode_t fmode) +static void __update_open_stateid(struct nfs4_state *state, + const nfs4_stateid *open_stateid, + const nfs4_stateid *deleg_stateid, + fmode_t fmode, + nfs4_stateid *freeme) { /* * Protect the call to nfs4_state_set_mode_locked and @@ -1418,16 +1530,22 @@ static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_s set_bit(NFS_DELEGATED_STATE, &state->flags); } if (open_stateid != NULL) - nfs_set_open_stateid_locked(state, open_stateid, fmode); + nfs_set_open_stateid_locked(state, open_stateid, fmode, freeme); write_sequnlock(&state->seqlock); update_open_stateflags(state, fmode); spin_unlock(&state->owner->so_lock); } -static int update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, nfs4_stateid *delegation, fmode_t fmode) +static int update_open_stateid(struct nfs4_state *state, + const nfs4_stateid *open_stateid, + const nfs4_stateid *delegation, + fmode_t fmode) { + struct nfs_server *server = NFS_SERVER(state->inode); + struct nfs_client *clp = server->nfs_client; struct nfs_inode *nfsi = NFS_I(state->inode); struct nfs_delegation *deleg_cur; + nfs4_stateid freeme = {0}; int ret = 0; fmode &= (FMODE_READ|FMODE_WRITE); @@ -1449,7 +1567,8 @@ static int update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stat goto no_delegation_unlock; nfs_mark_delegation_referenced(deleg_cur); - __update_open_stateid(state, open_stateid, &deleg_cur->stateid, fmode); + __update_open_stateid(state, open_stateid, &deleg_cur->stateid, + fmode, &freeme); ret = 1; no_delegation_unlock: spin_unlock(&deleg_cur->lock); @@ -1457,11 +1576,14 @@ no_delegation: rcu_read_unlock(); if (!ret && open_stateid != NULL) { - __update_open_stateid(state, open_stateid, NULL, fmode); + __update_open_stateid(state, open_stateid, NULL, fmode, &freeme); ret = 1; } if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags)) - nfs4_schedule_state_manager(state->owner->so_server->nfs_client); + nfs4_schedule_state_manager(clp); + if (freeme.type != 0) + nfs4_test_and_free_stateid(server, &freeme, + state->owner->so_cred); return ret; } @@ -1656,9 +1778,14 @@ err: static struct nfs4_state * nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data) { + struct nfs4_state *ret; + if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) - return _nfs4_opendata_reclaim_to_nfs4_state(data); - return _nfs4_opendata_to_nfs4_state(data); + ret =_nfs4_opendata_reclaim_to_nfs4_state(data); + else + ret = _nfs4_opendata_to_nfs4_state(data); + nfs4_sequence_free_slot(&data->o_res.seq_res); + return ret; } static struct nfs_open_context *nfs4_state_find_open_context(struct nfs4_state *state) @@ -1833,7 +1960,6 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct case -NFS4ERR_STALE_CLIENTID: case -NFS4ERR_STALE_STATEID: set_bit(NFS_DELEGATED_STATE, &state->flags); - case -NFS4ERR_EXPIRED: /* Don't recall a delegation if it was lost */ nfs4_schedule_lease_recovery(server->nfs_client); return -EAGAIN; @@ -1845,6 +1971,7 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct return -EAGAIN; case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: case -NFS4ERR_OPENMODE: nfs_inode_find_state_and_recover(state->inode, @@ -2056,7 +2183,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata) data->rpc_status = task->tk_status; - if (!nfs4_sequence_done(task, &data->o_res.seq_res)) + if (!nfs4_sequence_process(task, &data->o_res.seq_res)) return; if (task->tk_status == 0) { @@ -2326,9 +2453,10 @@ static int nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *sta return ret; } -static void nfs_finish_clear_delegation_stateid(struct nfs4_state *state) +static void nfs_finish_clear_delegation_stateid(struct nfs4_state *state, + const nfs4_stateid *stateid) { - nfs_remove_bad_delegation(state->inode); + nfs_remove_bad_delegation(state->inode, stateid); write_seqlock(&state->seqlock); nfs4_stateid_copy(&state->stateid, &state->open_stateid); write_sequnlock(&state->seqlock); @@ -2338,7 +2466,7 @@ static void nfs_finish_clear_delegation_stateid(struct nfs4_state *state) static void nfs40_clear_delegation_stateid(struct nfs4_state *state) { if (rcu_access_pointer(NFS_I(state->inode)->delegation) != NULL) - nfs_finish_clear_delegation_stateid(state); + nfs_finish_clear_delegation_stateid(state, NULL); } static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state) @@ -2348,7 +2476,45 @@ static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st return nfs4_open_expired(sp, state); } +static int nfs40_test_and_free_expired_stateid(struct nfs_server *server, + nfs4_stateid *stateid, + struct rpc_cred *cred) +{ + return -NFS4ERR_BAD_STATEID; +} + #if defined(CONFIG_NFS_V4_1) +static int nfs41_test_and_free_expired_stateid(struct nfs_server *server, + nfs4_stateid *stateid, + struct rpc_cred *cred) +{ + int status; + + switch (stateid->type) { + default: + break; + case NFS4_INVALID_STATEID_TYPE: + case NFS4_SPECIAL_STATEID_TYPE: + return -NFS4ERR_BAD_STATEID; + case NFS4_REVOKED_STATEID_TYPE: + goto out_free; + } + + status = nfs41_test_stateid(server, stateid, cred); + switch (status) { + case -NFS4ERR_EXPIRED: + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_DELEG_REVOKED: + break; + default: + return status; + } +out_free: + /* Ack the revoked state to the server */ + nfs41_free_stateid(server, stateid, cred, true); + return -NFS4ERR_EXPIRED; +} + static void nfs41_check_delegation_stateid(struct nfs4_state *state) { struct nfs_server *server = NFS_SERVER(state->inode); @@ -2366,23 +2532,68 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state) } nfs4_stateid_copy(&stateid, &delegation->stateid); + if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) { + rcu_read_unlock(); + nfs_finish_clear_delegation_stateid(state, &stateid); + return; + } + + if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED, &delegation->flags)) { + rcu_read_unlock(); + return; + } + cred = get_rpccred(delegation->cred); rcu_read_unlock(); - status = nfs41_test_stateid(server, &stateid, cred); + status = nfs41_test_and_free_expired_stateid(server, &stateid, cred); trace_nfs4_test_delegation_stateid(state, NULL, status); - - if (status != NFS_OK) { - /* Free the stateid unless the server explicitly - * informs us the stateid is unrecognized. */ - if (status != -NFS4ERR_BAD_STATEID) - nfs41_free_stateid(server, &stateid, cred); - nfs_finish_clear_delegation_stateid(state); - } + if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID) + nfs_finish_clear_delegation_stateid(state, &stateid); put_rpccred(cred); } /** + * nfs41_check_expired_locks - possibly free a lock stateid + * + * @state: NFSv4 state for an inode + * + * Returns NFS_OK if recovery for this stateid is now finished. + * Otherwise a negative NFS4ERR value is returned. + */ +static int nfs41_check_expired_locks(struct nfs4_state *state) +{ + int status, ret = NFS_OK; + struct nfs4_lock_state *lsp; + struct nfs_server *server = NFS_SERVER(state->inode); + + if (!test_bit(LK_STATE_IN_USE, &state->flags)) + goto out; + list_for_each_entry(lsp, &state->lock_states, ls_locks) { + if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) { + struct rpc_cred *cred = lsp->ls_state->owner->so_cred; + + status = nfs41_test_and_free_expired_stateid(server, + &lsp->ls_stateid, + cred); + trace_nfs4_test_lock_stateid(state, lsp, status); + if (status == -NFS4ERR_EXPIRED || + status == -NFS4ERR_BAD_STATEID) { + clear_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags); + lsp->ls_stateid.type = NFS4_INVALID_STATEID_TYPE; + if (!recover_lost_locks) + set_bit(NFS_LOCK_LOST, &lsp->ls_flags); + } else if (status != NFS_OK) { + ret = status; + break; + } + } + }; +out: + return ret; +} + +/** * nfs41_check_open_stateid - possibly free an open stateid * * @state: NFSv4 state for an inode @@ -2397,26 +2608,28 @@ static int nfs41_check_open_stateid(struct nfs4_state *state) struct rpc_cred *cred = state->owner->so_cred; int status; - /* If a state reset has been done, test_stateid is unneeded */ - if ((test_bit(NFS_O_RDONLY_STATE, &state->flags) == 0) && - (test_bit(NFS_O_WRONLY_STATE, &state->flags) == 0) && - (test_bit(NFS_O_RDWR_STATE, &state->flags) == 0)) + if (test_bit(NFS_OPEN_STATE, &state->flags) == 0) { + if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0) { + if (nfs4_have_delegation(state->inode, state->state)) + return NFS_OK; + return -NFS4ERR_OPENMODE; + } return -NFS4ERR_BAD_STATEID; - - status = nfs41_test_stateid(server, stateid, cred); + } + status = nfs41_test_and_free_expired_stateid(server, stateid, cred); trace_nfs4_test_open_stateid(state, NULL, status); - if (status != NFS_OK) { - /* Free the stateid unless the server explicitly - * informs us the stateid is unrecognized. */ - if (status != -NFS4ERR_BAD_STATEID) - nfs41_free_stateid(server, stateid, cred); - + if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID) { clear_bit(NFS_O_RDONLY_STATE, &state->flags); clear_bit(NFS_O_WRONLY_STATE, &state->flags); clear_bit(NFS_O_RDWR_STATE, &state->flags); clear_bit(NFS_OPEN_STATE, &state->flags); + stateid->type = NFS4_INVALID_STATEID_TYPE; } - return status; + if (status != NFS_OK) + return status; + if (nfs_open_stateid_recover_openmode(state)) + return -NFS4ERR_OPENMODE; + return NFS_OK; } static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state) @@ -2424,6 +2637,9 @@ static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st int status; nfs41_check_delegation_stateid(state); + status = nfs41_check_expired_locks(state); + if (status != NFS_OK) + return status; status = nfs41_check_open_stateid(state); if (status != NFS_OK) status = nfs4_open_expired(sp, state); @@ -2481,6 +2697,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, goto out; if (server->caps & NFS_CAP_POSIX_LOCK) set_bit(NFS_STATE_POSIX_LOCKS, &state->flags); + if (opendata->o_res.rflags & NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK) + set_bit(NFS_STATE_MAY_NOTIFY_LOCK, &state->flags); dentry = opendata->dentry; if (d_really_is_negative(dentry)) { @@ -2843,9 +3061,12 @@ static void nfs4_close_done(struct rpc_task *task, void *data) break; case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_STALE_STATEID: + case -NFS4ERR_EXPIRED: + nfs4_free_revoked_stateid(server, + &calldata->arg.stateid, + task->tk_msg.rpc_cred); case -NFS4ERR_OLD_STATEID: case -NFS4ERR_BAD_STATEID: - case -NFS4ERR_EXPIRED: if (!nfs4_stateid_match(&calldata->arg.stateid, &state->open_stateid)) { rpc_restart_call_prepare(task); @@ -4237,12 +4458,9 @@ static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, str err = _nfs4_do_fsinfo(server, fhandle, fsinfo); trace_nfs4_fsinfo(server, fhandle, fsinfo->fattr, err); if (err == 0) { - struct nfs_client *clp = server->nfs_client; - - spin_lock(&clp->cl_lock); - clp->cl_lease_time = fsinfo->lease_time * HZ; - clp->cl_last_renewal = now; - spin_unlock(&clp->cl_lock); + nfs4_set_lease_period(server->nfs_client, + fsinfo->lease_time * HZ, + now); break; } err = nfs4_handle_exception(server, err, &exception); @@ -4259,7 +4477,7 @@ static int nfs4_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, s if (error == 0) { /* block layout checks this! */ server->pnfs_blksize = fsinfo->blksize; - set_pnfs_layoutdriver(server, fhandle, fsinfo->layouttype); + set_pnfs_layoutdriver(server, fhandle, fsinfo); } return error; @@ -4346,24 +4564,25 @@ static bool nfs4_error_stateid_expired(int err) return false; } -void __nfs4_read_done_cb(struct nfs_pgio_header *hdr) -{ - nfs_invalidate_atime(hdr->inode); -} - static int nfs4_read_done_cb(struct rpc_task *task, struct nfs_pgio_header *hdr) { struct nfs_server *server = NFS_SERVER(hdr->inode); trace_nfs4_read(hdr, task->tk_status); - if (nfs4_async_handle_error(task, server, - hdr->args.context->state, - NULL) == -EAGAIN) { - rpc_restart_call_prepare(task); - return -EAGAIN; + if (task->tk_status < 0) { + struct nfs4_exception exception = { + .inode = hdr->inode, + .state = hdr->args.context->state, + .stateid = &hdr->args.stateid, + }; + task->tk_status = nfs4_async_handle_exception(task, + server, task->tk_status, &exception); + if (exception.retry) { + rpc_restart_call_prepare(task); + return -EAGAIN; + } } - __nfs4_read_done_cb(hdr); if (task->tk_status > 0) renew_lease(server, hdr->timestamp); return 0; @@ -4392,6 +4611,8 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) return -EAGAIN; if (nfs4_read_stateid_changed(task, &hdr->args)) return -EAGAIN; + if (task->tk_status > 0) + nfs_invalidate_atime(hdr->inode); return hdr->pgio_done_cb ? hdr->pgio_done_cb(task, hdr) : nfs4_read_done_cb(task, hdr); } @@ -4429,11 +4650,19 @@ static int nfs4_write_done_cb(struct rpc_task *task, struct inode *inode = hdr->inode; trace_nfs4_write(hdr, task->tk_status); - if (nfs4_async_handle_error(task, NFS_SERVER(inode), - hdr->args.context->state, - NULL) == -EAGAIN) { - rpc_restart_call_prepare(task); - return -EAGAIN; + if (task->tk_status < 0) { + struct nfs4_exception exception = { + .inode = hdr->inode, + .state = hdr->args.context->state, + .stateid = &hdr->args.stateid, + }; + task->tk_status = nfs4_async_handle_exception(task, + NFS_SERVER(inode), task->tk_status, + &exception); + if (exception.retry) { + rpc_restart_call_prepare(task); + return -EAGAIN; + } } if (task->tk_status >= 0) { renew_lease(NFS_SERVER(inode), hdr->timestamp); @@ -5070,12 +5299,14 @@ static void nfs4_init_boot_verifier(const struct nfs_client *clp, if (test_bit(NFS4CLNT_PURGE_STATE, &clp->cl_state)) { /* An impossible timestamp guarantees this value * will never match a generated boot time. */ - verf[0] = 0; - verf[1] = cpu_to_be32(NSEC_PER_SEC + 1); + verf[0] = cpu_to_be32(U32_MAX); + verf[1] = cpu_to_be32(U32_MAX); } else { struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id); - verf[0] = cpu_to_be32(nn->boot_time.tv_sec); - verf[1] = cpu_to_be32(nn->boot_time.tv_nsec); + u64 ns = ktime_to_ns(nn->boot_time); + + verf[0] = cpu_to_be32(ns >> 32); + verf[1] = cpu_to_be32(ns); } memcpy(bootverf->data, verf, sizeof(bootverf->data)); } @@ -5340,10 +5571,13 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) renew_lease(data->res.server, data->timestamp); case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_DELEG_REVOKED: + case -NFS4ERR_EXPIRED: + nfs4_free_revoked_stateid(data->res.server, + data->args.stateid, + task->tk_msg.rpc_cred); case -NFS4ERR_BAD_STATEID: case -NFS4ERR_OLD_STATEID: case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_EXPIRED: task->tk_status = 0; if (data->roc) pnfs_roc_set_barrier(data->inode, data->roc_barrier); @@ -5475,22 +5709,6 @@ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4 return err; } -#define NFS4_LOCK_MINTIMEOUT (1 * HZ) -#define NFS4_LOCK_MAXTIMEOUT (30 * HZ) - -/* - * sleep, with exponential backoff, and retry the LOCK operation. - */ -static unsigned long -nfs4_set_lock_task_retry(unsigned long timeout) -{ - freezable_schedule_timeout_killable_unsafe(timeout); - timeout <<= 1; - if (timeout > NFS4_LOCK_MAXTIMEOUT) - return NFS4_LOCK_MAXTIMEOUT; - return timeout; -} - static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock *request) { struct inode *inode = state->inode; @@ -5547,11 +5765,6 @@ static int nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock * return err; } -static int do_vfs_lock(struct inode *inode, struct file_lock *fl) -{ - return locks_lock_inode_wait(inode, fl); -} - struct nfs4_unlockdata { struct nfs_locku_args arg; struct nfs_locku_res res; @@ -5604,14 +5817,18 @@ static void nfs4_locku_done(struct rpc_task *task, void *data) switch (task->tk_status) { case 0: renew_lease(calldata->server, calldata->timestamp); - do_vfs_lock(calldata->lsp->ls_state->inode, &calldata->fl); + locks_lock_inode_wait(calldata->lsp->ls_state->inode, &calldata->fl); if (nfs4_update_lock_stateid(calldata->lsp, &calldata->res.stateid)) break; + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_EXPIRED: + nfs4_free_revoked_stateid(calldata->server, + &calldata->arg.stateid, + task->tk_msg.rpc_cred); case -NFS4ERR_BAD_STATEID: case -NFS4ERR_OLD_STATEID: case -NFS4ERR_STALE_STATEID: - case -NFS4ERR_EXPIRED: if (!nfs4_stateid_match(&calldata->arg.stateid, &calldata->lsp->ls_stateid)) rpc_restart_call_prepare(task); @@ -5712,7 +5929,7 @@ static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock * mutex_lock(&sp->so_delegreturn_mutex); /* Exclude nfs4_reclaim_open_stateid() - note nesting! */ down_read(&nfsi->rwsem); - if (do_vfs_lock(inode, request) == -ENOENT) { + if (locks_lock_inode_wait(inode, request) == -ENOENT) { up_read(&nfsi->rwsem); mutex_unlock(&sp->so_delegreturn_mutex); goto out; @@ -5853,7 +6070,7 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata) data->timestamp); if (data->arg.new_lock) { data->fl.fl_flags &= ~(FL_SLEEP | FL_ACCESS); - if (do_vfs_lock(lsp->ls_state->inode, &data->fl) < 0) { + if (locks_lock_inode_wait(lsp->ls_state->inode, &data->fl) < 0) { rpc_restart_call_prepare(task); break; } @@ -5912,6 +6129,7 @@ static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_ { switch (error) { case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; if (new_lock_owner != 0 || @@ -5920,7 +6138,6 @@ static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_ break; case -NFS4ERR_STALE_STATEID: lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; - case -NFS4ERR_EXPIRED: nfs4_schedule_lease_recovery(server->nfs_client); }; } @@ -6030,52 +6247,19 @@ out: } #if defined(CONFIG_NFS_V4_1) -/** - * nfs41_check_expired_locks - possibly free a lock stateid - * - * @state: NFSv4 state for an inode - * - * Returns NFS_OK if recovery for this stateid is now finished. - * Otherwise a negative NFS4ERR value is returned. - */ -static int nfs41_check_expired_locks(struct nfs4_state *state) -{ - int status, ret = -NFS4ERR_BAD_STATEID; - struct nfs4_lock_state *lsp; - struct nfs_server *server = NFS_SERVER(state->inode); - - list_for_each_entry(lsp, &state->lock_states, ls_locks) { - if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags)) { - struct rpc_cred *cred = lsp->ls_state->owner->so_cred; - - status = nfs41_test_stateid(server, - &lsp->ls_stateid, - cred); - trace_nfs4_test_lock_stateid(state, lsp, status); - if (status != NFS_OK) { - /* Free the stateid unless the server - * informs us the stateid is unrecognized. */ - if (status != -NFS4ERR_BAD_STATEID) - nfs41_free_stateid(server, - &lsp->ls_stateid, - cred); - clear_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags); - ret = status; - } - } - }; - - return ret; -} - static int nfs41_lock_expired(struct nfs4_state *state, struct file_lock *request) { - int status = NFS_OK; + struct nfs4_lock_state *lsp; + int status; - if (test_bit(LK_STATE_IN_USE, &state->flags)) - status = nfs41_check_expired_locks(state); - if (status != NFS_OK) - status = nfs4_lock_expired(state, request); + status = nfs4_set_lock_state(state, request); + if (status != 0) + return status; + lsp = request->fl_u.nfs4_fl.owner; + if (test_bit(NFS_LOCK_INITIALIZED, &lsp->ls_flags) || + test_bit(NFS_LOCK_LOST, &lsp->ls_flags)) + return 0; + status = nfs4_lock_expired(state, request); return status; } #endif @@ -6085,17 +6269,10 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock struct nfs_inode *nfsi = NFS_I(state->inode); struct nfs4_state_owner *sp = state->owner; unsigned char fl_flags = request->fl_flags; - int status = -ENOLCK; + int status; - if ((fl_flags & FL_POSIX) && - !test_bit(NFS_STATE_POSIX_LOCKS, &state->flags)) - goto out; - /* Is this a delegated open? */ - status = nfs4_set_lock_state(state, request); - if (status != 0) - goto out; request->fl_flags |= FL_ACCESS; - status = do_vfs_lock(state->inode, request); + status = locks_lock_inode_wait(state->inode, request); if (status < 0) goto out; mutex_lock(&sp->so_delegreturn_mutex); @@ -6104,7 +6281,7 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock /* Yes: cache locks! */ /* ...but avoid races with delegation recall... */ request->fl_flags = fl_flags & ~FL_SLEEP; - status = do_vfs_lock(state->inode, request); + status = locks_lock_inode_wait(state->inode, request); up_read(&nfsi->rwsem); mutex_unlock(&sp->so_delegreturn_mutex); goto out; @@ -6135,12 +6312,124 @@ static int nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock * return err; } +#define NFS4_LOCK_MINTIMEOUT (1 * HZ) +#define NFS4_LOCK_MAXTIMEOUT (30 * HZ) + +static int +nfs4_retry_setlk_simple(struct nfs4_state *state, int cmd, + struct file_lock *request) +{ + int status = -ERESTARTSYS; + unsigned long timeout = NFS4_LOCK_MINTIMEOUT; + + while(!signalled()) { + status = nfs4_proc_setlk(state, cmd, request); + if ((status != -EAGAIN) || IS_SETLK(cmd)) + break; + freezable_schedule_timeout_interruptible(timeout); + timeout *= 2; + timeout = min_t(unsigned long, NFS4_LOCK_MAXTIMEOUT, timeout); + status = -ERESTARTSYS; + } + return status; +} + +#ifdef CONFIG_NFS_V4_1 +struct nfs4_lock_waiter { + struct task_struct *task; + struct inode *inode; + struct nfs_lowner *owner; + bool notified; +}; + +static int +nfs4_wake_lock_waiter(wait_queue_t *wait, unsigned int mode, int flags, void *key) +{ + int ret; + struct cb_notify_lock_args *cbnl = key; + struct nfs4_lock_waiter *waiter = wait->private; + struct nfs_lowner *lowner = &cbnl->cbnl_owner, + *wowner = waiter->owner; + + /* Only wake if the callback was for the same owner */ + if (lowner->clientid != wowner->clientid || + lowner->id != wowner->id || + lowner->s_dev != wowner->s_dev) + return 0; + + /* Make sure it's for the right inode */ + if (nfs_compare_fh(NFS_FH(waiter->inode), &cbnl->cbnl_fh)) + return 0; + + waiter->notified = true; + + /* override "private" so we can use default_wake_function */ + wait->private = waiter->task; + ret = autoremove_wake_function(wait, mode, flags, key); + wait->private = waiter; + return ret; +} + +static int +nfs4_retry_setlk(struct nfs4_state *state, int cmd, struct file_lock *request) +{ + int status = -ERESTARTSYS; + unsigned long flags; + struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner; + struct nfs_server *server = NFS_SERVER(state->inode); + struct nfs_client *clp = server->nfs_client; + wait_queue_head_t *q = &clp->cl_lock_waitq; + struct nfs_lowner owner = { .clientid = clp->cl_clientid, + .id = lsp->ls_seqid.owner_id, + .s_dev = server->s_dev }; + struct nfs4_lock_waiter waiter = { .task = current, + .inode = state->inode, + .owner = &owner, + .notified = false }; + wait_queue_t wait; + + /* Don't bother with waitqueue if we don't expect a callback */ + if (!test_bit(NFS_STATE_MAY_NOTIFY_LOCK, &state->flags)) + return nfs4_retry_setlk_simple(state, cmd, request); + + init_wait(&wait); + wait.private = &waiter; + wait.func = nfs4_wake_lock_waiter; + add_wait_queue(q, &wait); + + while(!signalled()) { + status = nfs4_proc_setlk(state, cmd, request); + if ((status != -EAGAIN) || IS_SETLK(cmd)) + break; + + status = -ERESTARTSYS; + spin_lock_irqsave(&q->lock, flags); + if (waiter.notified) { + spin_unlock_irqrestore(&q->lock, flags); + continue; + } + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&q->lock, flags); + + freezable_schedule_timeout_interruptible(NFS4_LOCK_MAXTIMEOUT); + } + + finish_wait(q, &wait); + return status; +} +#else /* !CONFIG_NFS_V4_1 */ +static inline int +nfs4_retry_setlk(struct nfs4_state *state, int cmd, struct file_lock *request) +{ + return nfs4_retry_setlk_simple(state, cmd, request); +} +#endif + static int nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) { struct nfs_open_context *ctx; struct nfs4_state *state; - unsigned long timeout = NFS4_LOCK_MINTIMEOUT; int status; /* verify open state */ @@ -6167,6 +6456,11 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) if (state == NULL) return -ENOLCK; + + if ((request->fl_flags & FL_POSIX) && + !test_bit(NFS_STATE_POSIX_LOCKS, &state->flags)) + return -ENOLCK; + /* * Don't rely on the VFS having checked the file open mode, * since it won't do this for flock() locks. @@ -6181,16 +6475,11 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) return -EBADF; } - do { - status = nfs4_proc_setlk(state, cmd, request); - if ((status != -EAGAIN) || IS_SETLK(cmd)) - break; - timeout = nfs4_set_lock_task_retry(timeout); - status = -ERESTARTSYS; - if (signalled()) - break; - } while(status < 0); - return status; + status = nfs4_set_lock_state(state, request); + if (status != 0) + return status; + + return nfs4_retry_setlk(state, cmd, request); } int nfs4_lock_delegation_recall(struct file_lock *fl, struct nfs4_state *state, const nfs4_stateid *stateid) @@ -7051,75 +7340,161 @@ static int nfs4_sp4_select_mode(struct nfs_client *clp, return 0; } +struct nfs41_exchange_id_data { + struct nfs41_exchange_id_res res; + struct nfs41_exchange_id_args args; + struct rpc_xprt *xprt; + int rpc_status; +}; + +static void nfs4_exchange_id_done(struct rpc_task *task, void *data) +{ + struct nfs41_exchange_id_data *cdata = + (struct nfs41_exchange_id_data *)data; + struct nfs_client *clp = cdata->args.client; + int status = task->tk_status; + + trace_nfs4_exchange_id(clp, status); + + if (status == 0) + status = nfs4_check_cl_exchange_flags(cdata->res.flags); + + if (cdata->xprt && status == 0) { + status = nfs4_detect_session_trunking(clp, &cdata->res, + cdata->xprt); + goto out; + } + + if (status == 0) + status = nfs4_sp4_select_mode(clp, &cdata->res.state_protect); + + if (status == 0) { + clp->cl_clientid = cdata->res.clientid; + clp->cl_exchange_flags = cdata->res.flags; + /* Client ID is not confirmed */ + if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R)) { + clear_bit(NFS4_SESSION_ESTABLISHED, + &clp->cl_session->session_state); + clp->cl_seqid = cdata->res.seqid; + } + + kfree(clp->cl_serverowner); + clp->cl_serverowner = cdata->res.server_owner; + cdata->res.server_owner = NULL; + + /* use the most recent implementation id */ + kfree(clp->cl_implid); + clp->cl_implid = cdata->res.impl_id; + cdata->res.impl_id = NULL; + + if (clp->cl_serverscope != NULL && + !nfs41_same_server_scope(clp->cl_serverscope, + cdata->res.server_scope)) { + dprintk("%s: server_scope mismatch detected\n", + __func__); + set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state); + kfree(clp->cl_serverscope); + clp->cl_serverscope = NULL; + } + + if (clp->cl_serverscope == NULL) { + clp->cl_serverscope = cdata->res.server_scope; + cdata->res.server_scope = NULL; + } + /* Save the EXCHANGE_ID verifier session trunk tests */ + memcpy(clp->cl_confirm.data, cdata->args.verifier->data, + sizeof(clp->cl_confirm.data)); + } +out: + cdata->rpc_status = status; + return; +} + +static void nfs4_exchange_id_release(void *data) +{ + struct nfs41_exchange_id_data *cdata = + (struct nfs41_exchange_id_data *)data; + + nfs_put_client(cdata->args.client); + if (cdata->xprt) { + xprt_put(cdata->xprt); + rpc_clnt_xprt_switch_put(cdata->args.client->cl_rpcclient); + } + kfree(cdata->res.impl_id); + kfree(cdata->res.server_scope); + kfree(cdata->res.server_owner); + kfree(cdata); +} + +static const struct rpc_call_ops nfs4_exchange_id_call_ops = { + .rpc_call_done = nfs4_exchange_id_done, + .rpc_release = nfs4_exchange_id_release, +}; + /* * _nfs4_proc_exchange_id() * * Wrapper for EXCHANGE_ID operation. */ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, - u32 sp4_how) + u32 sp4_how, struct rpc_xprt *xprt) { nfs4_verifier verifier; - struct nfs41_exchange_id_args args = { - .verifier = &verifier, - .client = clp, -#ifdef CONFIG_NFS_V4_1_MIGRATION - .flags = EXCHGID4_FLAG_SUPP_MOVED_REFER | - EXCHGID4_FLAG_BIND_PRINC_STATEID | - EXCHGID4_FLAG_SUPP_MOVED_MIGR, -#else - .flags = EXCHGID4_FLAG_SUPP_MOVED_REFER | - EXCHGID4_FLAG_BIND_PRINC_STATEID, -#endif - }; - struct nfs41_exchange_id_res res = { - 0 - }; - int status; struct rpc_message msg = { .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID], - .rpc_argp = &args, - .rpc_resp = &res, .rpc_cred = cred, }; + struct rpc_task_setup task_setup_data = { + .rpc_client = clp->cl_rpcclient, + .callback_ops = &nfs4_exchange_id_call_ops, + .rpc_message = &msg, + .flags = RPC_TASK_ASYNC | RPC_TASK_TIMEOUT, + }; + struct nfs41_exchange_id_data *calldata; + struct rpc_task *task; + int status = -EIO; - nfs4_init_boot_verifier(clp, &verifier); + if (!atomic_inc_not_zero(&clp->cl_count)) + goto out; + + status = -ENOMEM; + calldata = kzalloc(sizeof(*calldata), GFP_NOFS); + if (!calldata) + goto out; + + if (!xprt) + nfs4_init_boot_verifier(clp, &verifier); status = nfs4_init_uniform_client_string(clp); if (status) - goto out; + goto out_calldata; dprintk("NFS call exchange_id auth=%s, '%s'\n", clp->cl_rpcclient->cl_auth->au_ops->au_name, clp->cl_owner_id); - res.server_owner = kzalloc(sizeof(struct nfs41_server_owner), - GFP_NOFS); - if (unlikely(res.server_owner == NULL)) { - status = -ENOMEM; - goto out; - } + calldata->res.server_owner = kzalloc(sizeof(struct nfs41_server_owner), + GFP_NOFS); + status = -ENOMEM; + if (unlikely(calldata->res.server_owner == NULL)) + goto out_calldata; - res.server_scope = kzalloc(sizeof(struct nfs41_server_scope), + calldata->res.server_scope = kzalloc(sizeof(struct nfs41_server_scope), GFP_NOFS); - if (unlikely(res.server_scope == NULL)) { - status = -ENOMEM; + if (unlikely(calldata->res.server_scope == NULL)) goto out_server_owner; - } - res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS); - if (unlikely(res.impl_id == NULL)) { - status = -ENOMEM; + calldata->res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS); + if (unlikely(calldata->res.impl_id == NULL)) goto out_server_scope; - } switch (sp4_how) { case SP4_NONE: - args.state_protect.how = SP4_NONE; + calldata->args.state_protect.how = SP4_NONE; break; case SP4_MACH_CRED: - args.state_protect = nfs4_sp4_mach_cred_request; + calldata->args.state_protect = nfs4_sp4_mach_cred_request; break; default: @@ -7128,56 +7503,42 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, status = -EINVAL; goto out_impl_id; } + if (xprt) { + calldata->xprt = xprt; + task_setup_data.rpc_xprt = xprt; + task_setup_data.flags = + RPC_TASK_SOFT|RPC_TASK_SOFTCONN|RPC_TASK_ASYNC; + calldata->args.verifier = &clp->cl_confirm; + } else { + calldata->args.verifier = &verifier; + } + calldata->args.client = clp; +#ifdef CONFIG_NFS_V4_1_MIGRATION + calldata->args.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER | + EXCHGID4_FLAG_BIND_PRINC_STATEID | + EXCHGID4_FLAG_SUPP_MOVED_MIGR, +#else + calldata->args.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER | + EXCHGID4_FLAG_BIND_PRINC_STATEID, +#endif + msg.rpc_argp = &calldata->args; + msg.rpc_resp = &calldata->res; + task_setup_data.callback_data = calldata; - status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); - trace_nfs4_exchange_id(clp, status); - if (status == 0) - status = nfs4_check_cl_exchange_flags(res.flags); - - if (status == 0) - status = nfs4_sp4_select_mode(clp, &res.state_protect); - - if (status == 0) { - clp->cl_clientid = res.clientid; - clp->cl_exchange_flags = res.flags; - /* Client ID is not confirmed */ - if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R)) { - clear_bit(NFS4_SESSION_ESTABLISHED, - &clp->cl_session->session_state); - clp->cl_seqid = res.seqid; - } - - kfree(clp->cl_serverowner); - clp->cl_serverowner = res.server_owner; - res.server_owner = NULL; - - /* use the most recent implementation id */ - kfree(clp->cl_implid); - clp->cl_implid = res.impl_id; - res.impl_id = NULL; - - if (clp->cl_serverscope != NULL && - !nfs41_same_server_scope(clp->cl_serverscope, - res.server_scope)) { - dprintk("%s: server_scope mismatch detected\n", - __func__); - set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state); - kfree(clp->cl_serverscope); - clp->cl_serverscope = NULL; - } - - if (clp->cl_serverscope == NULL) { - clp->cl_serverscope = res.server_scope; - res.server_scope = NULL; - } + task = rpc_run_task(&task_setup_data); + if (IS_ERR(task)) { + status = PTR_ERR(task); + goto out_impl_id; } -out_impl_id: - kfree(res.impl_id); -out_server_scope: - kfree(res.server_scope); -out_server_owner: - kfree(res.server_owner); + if (!xprt) { + status = rpc_wait_for_completion_task(task); + if (!status) + status = calldata->rpc_status; + } else /* session trunking test */ + status = calldata->rpc_status; + + rpc_put_task(task); out: if (clp->cl_implid != NULL) dprintk("NFS reply exchange_id: Server Implementation ID: " @@ -7187,6 +7548,16 @@ out: clp->cl_implid->date.nseconds); dprintk("NFS reply exchange_id: %d\n", status); return status; + +out_impl_id: + kfree(calldata->res.impl_id); +out_server_scope: + kfree(calldata->res.server_scope); +out_server_owner: + kfree(calldata->res.server_owner); +out_calldata: + kfree(calldata); + goto out; } /* @@ -7209,15 +7580,46 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) /* try SP4_MACH_CRED if krb5i/p */ if (authflavor == RPC_AUTH_GSS_KRB5I || authflavor == RPC_AUTH_GSS_KRB5P) { - status = _nfs4_proc_exchange_id(clp, cred, SP4_MACH_CRED); + status = _nfs4_proc_exchange_id(clp, cred, SP4_MACH_CRED, NULL); if (!status) return 0; } /* try SP4_NONE */ - return _nfs4_proc_exchange_id(clp, cred, SP4_NONE); + return _nfs4_proc_exchange_id(clp, cred, SP4_NONE, NULL); } +/** + * nfs4_test_session_trunk + * + * This is an add_xprt_test() test function called from + * rpc_clnt_setup_test_and_add_xprt. + * + * The rpc_xprt_switch is referrenced by rpc_clnt_setup_test_and_add_xprt + * and is dereferrenced in nfs4_exchange_id_release + * + * Upon success, add the new transport to the rpc_clnt + * + * @clnt: struct rpc_clnt to get new transport + * @xprt: the rpc_xprt to test + * @data: call data for _nfs4_proc_exchange_id. + */ +int nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, + void *data) +{ + struct nfs4_add_xprt_data *adata = (struct nfs4_add_xprt_data *)data; + u32 sp4_how; + + dprintk("--> %s try %s\n", __func__, + xprt->address_strings[RPC_DISPLAY_ADDR]); + + sp4_how = (adata->clp->cl_sp4_flags == 0 ? SP4_NONE : SP4_MACH_CRED); + + /* Test connection for session trunking. Async exchange_id call */ + return _nfs4_proc_exchange_id(adata->clp, adata->cred, sp4_how, xprt); +} +EXPORT_SYMBOL_GPL(nfs4_test_session_trunk); + static int _nfs4_proc_destroy_clientid(struct nfs_client *clp, struct rpc_cred *cred) { @@ -7410,7 +7812,7 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args, args->bc_attrs.max_resp_sz = max_bc_payload; args->bc_attrs.max_resp_sz_cached = 0; args->bc_attrs.max_ops = NFS4_MAX_BACK_CHANNEL_OPS; - args->bc_attrs.max_reqs = NFS41_BC_MAX_CALLBACKS; + args->bc_attrs.max_reqs = min_t(unsigned short, max_session_cb_slots, 1); dprintk("%s: Back Channel : max_rqst_sz=%u max_resp_sz=%u " "max_resp_sz_cached=%u max_ops=%u max_reqs=%u\n", @@ -7457,10 +7859,9 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args return -EINVAL; if (rcvd->max_resp_sz_cached > sent->max_resp_sz_cached) return -EINVAL; - /* These would render the backchannel useless: */ - if (rcvd->max_ops != sent->max_ops) + if (rcvd->max_ops > sent->max_ops) return -EINVAL; - if (rcvd->max_reqs != sent->max_reqs) + if (rcvd->max_reqs > sent->max_reqs) return -EINVAL; out: return 0; @@ -7517,12 +7918,20 @@ static int _nfs4_proc_create_session(struct nfs_client *clp, status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); trace_nfs4_create_session(clp, status); + switch (status) { + case -NFS4ERR_STALE_CLIENTID: + case -NFS4ERR_DELAY: + case -ETIMEDOUT: + case -EACCES: + case -EAGAIN: + goto out; + }; + + clp->cl_seqid++; if (!status) { /* Verify the session's negotiated channel_attrs values */ status = nfs4_verify_channel_attrs(&args, &res); /* Increment the clientid slot sequence id */ - if (clp->cl_seqid == res.seqid) - clp->cl_seqid++; if (status) goto out; nfs4_update_session(session, &res); @@ -7867,7 +8276,7 @@ static void nfs4_layoutget_done(struct rpc_task *task, void *calldata) struct nfs4_layoutget *lgp = calldata; dprintk("--> %s\n", __func__); - nfs41_sequence_done(task, &lgp->res.seq_res); + nfs41_sequence_process(task, &lgp->res.seq_res); dprintk("<-- %s\n", __func__); } @@ -7921,6 +8330,8 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, case -NFS4ERR_RECALLCONFLICT: status = -ERECALLCONFLICT; break; + case -NFS4ERR_DELEG_REVOKED: + case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_EXPIRED: case -NFS4ERR_BAD_STATEID: exception->timeout = 0; @@ -7932,6 +8343,7 @@ nfs4_layoutget_handle_exception(struct rpc_task *task, &lgp->args.ctx->state->stateid)) { spin_unlock(&inode->i_lock); exception->state = lgp->args.ctx->state; + exception->stateid = &lgp->args.stateid; break; } @@ -8083,6 +8495,7 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags) /* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */ if (status == 0 && lgp->res.layoutp->len) lseg = pnfs_layout_process(lgp); + nfs4_sequence_free_slot(&lgp->res.seq_res); rpc_put_task(task); dprintk("<-- %s status=%d\n", __func__, status); if (status) @@ -8109,7 +8522,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) dprintk("--> %s\n", __func__); - if (!nfs41_sequence_done(task, &lrp->res.seq_res)) + if (!nfs41_sequence_process(task, &lrp->res.seq_res)) return; server = NFS_SERVER(lrp->args.inode); @@ -8121,6 +8534,7 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata) case -NFS4ERR_DELAY: if (nfs4_async_handle_error(task, server, NULL, NULL) != -EAGAIN) break; + nfs4_sequence_free_slot(&lrp->res.seq_res); rpc_restart_call_prepare(task); return; } @@ -8135,12 +8549,16 @@ static void nfs4_layoutreturn_release(void *calldata) dprintk("--> %s\n", __func__); spin_lock(&lo->plh_inode->i_lock); - pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range, - be32_to_cpu(lrp->args.stateid.seqid)); - if (lrp->res.lrs_present && pnfs_layout_is_valid(lo)) + if (lrp->res.lrs_present) { + pnfs_mark_matching_lsegs_invalid(lo, &freeme, + &lrp->args.range, + be32_to_cpu(lrp->args.stateid.seqid)); pnfs_set_layout_stateid(lo, &lrp->res.stateid, true); + } else + pnfs_mark_layout_stateid_invalid(lo, &freeme); pnfs_clear_layoutreturn_waitbit(lo); spin_unlock(&lo->plh_inode->i_lock); + nfs4_sequence_free_slot(&lrp->res.seq_res); pnfs_free_lseg_list(&freeme); pnfs_put_layout_hdr(lrp->args.layout); nfs_iput_and_deactive(lrp->inode); @@ -8524,6 +8942,24 @@ static int _nfs41_test_stateid(struct nfs_server *server, return -res.status; } +static void nfs4_handle_delay_or_session_error(struct nfs_server *server, + int err, struct nfs4_exception *exception) +{ + exception->retry = 0; + switch(err) { + case -NFS4ERR_DELAY: + case -NFS4ERR_RETRY_UNCACHED_REP: + nfs4_handle_exception(server, err, exception); + break; + case -NFS4ERR_BADSESSION: + case -NFS4ERR_BADSLOT: + case -NFS4ERR_BAD_HIGH_SLOT: + case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION: + case -NFS4ERR_DEADSESSION: + nfs4_do_handle_exception(server, err, exception); + } +} + /** * nfs41_test_stateid - perform a TEST_STATEID operation * @@ -8543,9 +8979,7 @@ static int nfs41_test_stateid(struct nfs_server *server, int err; do { err = _nfs41_test_stateid(server, stateid, cred); - if (err != -NFS4ERR_DELAY) - break; - nfs4_handle_exception(server, err, &exception); + nfs4_handle_delay_or_session_error(server, err, &exception); } while (exception.retry); return err; } @@ -8590,7 +9024,7 @@ static const struct rpc_call_ops nfs41_free_stateid_ops = { }; static struct rpc_task *_nfs41_free_stateid(struct nfs_server *server, - nfs4_stateid *stateid, + const nfs4_stateid *stateid, struct rpc_cred *cred, bool privileged) { @@ -8620,7 +9054,7 @@ static struct rpc_task *_nfs41_free_stateid(struct nfs_server *server, msg.rpc_argp = &data->args; msg.rpc_resp = &data->res; - nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 0); + nfs4_init_sequence(&data->args.seq_args, &data->res.seq_res, 1); if (privileged) nfs4_set_sequence_privileged(&data->args.seq_args); @@ -8633,38 +9067,31 @@ static struct rpc_task *_nfs41_free_stateid(struct nfs_server *server, * @server: server / transport on which to perform the operation * @stateid: state ID to release * @cred: credential + * @is_recovery: set to true if this call needs to be privileged * - * Returns NFS_OK if the server freed "stateid". Otherwise a - * negative NFS4ERR value is returned. + * Note: this function is always asynchronous. */ static int nfs41_free_stateid(struct nfs_server *server, - nfs4_stateid *stateid, - struct rpc_cred *cred) + const nfs4_stateid *stateid, + struct rpc_cred *cred, + bool is_recovery) { struct rpc_task *task; - int ret; - task = _nfs41_free_stateid(server, stateid, cred, true); + task = _nfs41_free_stateid(server, stateid, cred, is_recovery); if (IS_ERR(task)) return PTR_ERR(task); - ret = rpc_wait_for_completion_task(task); - if (!ret) - ret = task->tk_status; rpc_put_task(task); - return ret; + return 0; } static void nfs41_free_lock_state(struct nfs_server *server, struct nfs4_lock_state *lsp) { - struct rpc_task *task; struct rpc_cred *cred = lsp->ls_state->owner->so_cred; - task = _nfs41_free_stateid(server, &lsp->ls_stateid, cred, false); + nfs41_free_stateid(server, &lsp->ls_stateid, cred, false); nfs4_free_lock_state(server, lsp); - if (IS_ERR(task)) - return; - rpc_put_task(task); } static bool nfs41_match_stateid(const nfs4_stateid *s1, @@ -8768,6 +9195,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = { .match_stateid = nfs4_match_stateid, .find_root_sec = nfs4_find_root_sec, .free_lock_state = nfs4_release_lockowner, + .test_and_free_expired = nfs40_test_and_free_expired_stateid, .alloc_seqid = nfs_alloc_seqid, .call_sync_ops = &nfs40_call_sync_ops, .reboot_recovery_ops = &nfs40_reboot_recovery_ops, @@ -8795,7 +9223,9 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = { .match_stateid = nfs41_match_stateid, .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, + .test_and_free_expired = nfs41_test_and_free_expired_stateid, .alloc_seqid = nfs_alloc_no_seqid, + .session_trunk = nfs4_test_session_trunk, .call_sync_ops = &nfs41_call_sync_ops, .reboot_recovery_ops = &nfs41_reboot_recovery_ops, .nograce_recovery_ops = &nfs41_nograce_recovery_ops, @@ -8824,7 +9254,9 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = { .find_root_sec = nfs41_find_root_sec, .free_lock_state = nfs41_free_lock_state, .call_sync_ops = &nfs41_call_sync_ops, + .test_and_free_expired = nfs41_test_and_free_expired_stateid, .alloc_seqid = nfs_alloc_no_seqid, + .session_trunk = nfs4_test_session_trunk, .reboot_recovery_ops = &nfs41_reboot_recovery_ops, .nograce_recovery_ops = &nfs41_nograce_recovery_ops, .state_renewal_ops = &nfs41_state_renewal_ops, @@ -8874,20 +9306,14 @@ static const struct inode_operations nfs4_dir_inode_operations = { .permission = nfs_permission, .getattr = nfs_getattr, .setattr = nfs_setattr, - .getxattr = generic_getxattr, - .setxattr = generic_setxattr, .listxattr = nfs4_listxattr, - .removexattr = generic_removexattr, }; static const struct inode_operations nfs4_file_inode_operations = { .permission = nfs_permission, .getattr = nfs_getattr, .setattr = nfs_setattr, - .getxattr = generic_getxattr, - .setxattr = generic_setxattr, .listxattr = nfs4_listxattr, - .removexattr = generic_removexattr, }; const struct nfs_rpc_ops nfs_v4_clientops = { diff --git a/fs/nfs/nfs4renewd.c b/fs/nfs/nfs4renewd.c index e1ba58c3d1ad..82e77198d17e 100644 --- a/fs/nfs/nfs4renewd.c +++ b/fs/nfs/nfs4renewd.c @@ -136,6 +136,26 @@ nfs4_kill_renewd(struct nfs_client *clp) cancel_delayed_work_sync(&clp->cl_renewd); } +/** + * nfs4_set_lease_period - Sets the lease period on a nfs_client + * + * @clp: pointer to nfs_client + * @lease: new value for lease period + * @lastrenewed: time at which lease was last renewed + */ +void nfs4_set_lease_period(struct nfs_client *clp, + unsigned long lease, + unsigned long lastrenewed) +{ + spin_lock(&clp->cl_lock); + clp->cl_lease_time = lease; + clp->cl_last_renewal = lastrenewed; + spin_unlock(&clp->cl_lock); + + /* Cap maximum reconnect timeout at 1/2 lease period */ + rpc_cap_max_reconnect_timeout(clp->cl_rpcclient, lease >> 1); +} + /* * Local variables: * c-basic-offset: 8 diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c index 332d06e64fa9..b62973045a3e 100644 --- a/fs/nfs/nfs4session.c +++ b/fs/nfs/nfs4session.c @@ -28,6 +28,7 @@ static void nfs4_init_slot_table(struct nfs4_slot_table *tbl, const char *queue) tbl->highest_used_slotid = NFS4_NO_SLOT; spin_lock_init(&tbl->slot_tbl_lock); rpc_init_priority_wait_queue(&tbl->slot_tbl_waitq, queue); + init_waitqueue_head(&tbl->slot_waitq); init_completion(&tbl->complete); } @@ -172,6 +173,58 @@ struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid) return ERR_PTR(-E2BIG); } +static int nfs4_slot_get_seqid(struct nfs4_slot_table *tbl, u32 slotid, + u32 *seq_nr) + __must_hold(&tbl->slot_tbl_lock) +{ + struct nfs4_slot *slot; + + slot = nfs4_lookup_slot(tbl, slotid); + if (IS_ERR(slot)) + return PTR_ERR(slot); + *seq_nr = slot->seq_nr; + return 0; +} + +/* + * nfs4_slot_seqid_in_use - test if a slot sequence id is still in use + * + * Given a slot table, slot id and sequence number, determine if the + * RPC call in question is still in flight. This function is mainly + * intended for use by the callback channel. + */ +static bool nfs4_slot_seqid_in_use(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr) +{ + u32 cur_seq; + bool ret = false; + + spin_lock(&tbl->slot_tbl_lock); + if (nfs4_slot_get_seqid(tbl, slotid, &cur_seq) == 0 && + cur_seq == seq_nr && test_bit(slotid, tbl->used_slots)) + ret = true; + spin_unlock(&tbl->slot_tbl_lock); + return ret; +} + +/* + * nfs4_slot_wait_on_seqid - wait until a slot sequence id is complete + * + * Given a slot table, slot id and sequence number, wait until the + * corresponding RPC call completes. This function is mainly + * intended for use by the callback channel. + */ +int nfs4_slot_wait_on_seqid(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr, + unsigned long timeout) +{ + if (wait_event_timeout(tbl->slot_waitq, + !nfs4_slot_seqid_in_use(tbl, slotid, seq_nr), + timeout) == 0) + return -ETIMEDOUT; + return 0; +} + /* * nfs4_alloc_slot - efficiently look for a free slot * diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h index 5b51298d1d03..dae385500005 100644 --- a/fs/nfs/nfs4session.h +++ b/fs/nfs/nfs4session.h @@ -9,6 +9,7 @@ /* maximum number of slots to use */ #define NFS4_DEF_SLOT_TABLE_SIZE (64U) +#define NFS4_DEF_CB_SLOT_TABLE_SIZE (1U) #define NFS4_MAX_SLOT_TABLE (1024U) #define NFS4_NO_SLOT ((u32)-1) @@ -21,7 +22,9 @@ struct nfs4_slot { unsigned long generation; u32 slot_nr; u32 seq_nr; - unsigned int interrupted : 1; + unsigned int interrupted : 1, + privileged : 1, + seq_done : 1; }; /* Sessions */ @@ -36,6 +39,7 @@ struct nfs4_slot_table { unsigned long used_slots[SLOT_TABLE_SZ]; /* used/unused bitmap */ spinlock_t slot_tbl_lock; struct rpc_wait_queue slot_tbl_waitq; /* allocators may wait here */ + wait_queue_head_t slot_waitq; /* Completion wait on slot */ u32 max_slots; /* # slots in table */ u32 max_slotid; /* Max allowed slotid value */ u32 highest_used_slotid; /* sent to server on each SEQ. @@ -78,6 +82,9 @@ extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl, extern void nfs4_shutdown_slot_table(struct nfs4_slot_table *tbl); extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl); extern struct nfs4_slot *nfs4_lookup_slot(struct nfs4_slot_table *tbl, u32 slotid); +extern int nfs4_slot_wait_on_seqid(struct nfs4_slot_table *tbl, + u32 slotid, u32 seq_nr, + unsigned long timeout); extern bool nfs4_try_to_lock_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot); extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot); extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl); diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 834b875900d6..5f4281ec5f72 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -277,20 +277,17 @@ static int nfs41_setup_state_renewal(struct nfs_client *clp) { int status; struct nfs_fsinfo fsinfo; + unsigned long now; if (!test_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state)) { nfs4_schedule_state_renewal(clp); return 0; } + now = jiffies; status = nfs4_proc_get_lease_time(clp, &fsinfo); if (status == 0) { - /* Update lease time and schedule renewal */ - spin_lock(&clp->cl_lock); - clp->cl_lease_time = fsinfo.lease_time * HZ; - clp->cl_last_renewal = jiffies; - spin_unlock(&clp->cl_lock); - + nfs4_set_lease_period(clp, fsinfo.lease_time * HZ, now); nfs4_schedule_state_renewal(clp); } @@ -994,6 +991,8 @@ int nfs4_select_rw_stateid(struct nfs4_state *state, { int ret; + if (!nfs4_valid_open_stateid(state)) + return -EIO; if (cred != NULL) *cred = NULL; ret = nfs4_copy_lock_stateid(dst, state, lockowner); @@ -1306,6 +1305,8 @@ void nfs4_schedule_path_down_recovery(struct nfs_client *clp) static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state) { + if (!nfs4_valid_open_stateid(state)) + return 0; set_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags); /* Don't recover state that expired before the reboot */ if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags)) { @@ -1319,6 +1320,8 @@ static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_st int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state) { + if (!nfs4_valid_open_stateid(state)) + return 0; set_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags); clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags); set_bit(NFS_OWNER_RECLAIM_NOGRACE, &state->owner->so_flags); @@ -1330,9 +1333,8 @@ int nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4_ { struct nfs_client *clp = server->nfs_client; - if (!nfs4_valid_open_stateid(state)) + if (!nfs4_state_mark_reclaim_nograce(clp, state)) return -EBADF; - nfs4_state_mark_reclaim_nograce(clp, state); dprintk("%s: scheduling stateid recovery for server %s\n", __func__, clp->cl_hostname); nfs4_schedule_state_manager(clp); @@ -1340,6 +1342,35 @@ int nfs4_schedule_stateid_recovery(const struct nfs_server *server, struct nfs4_ } EXPORT_SYMBOL_GPL(nfs4_schedule_stateid_recovery); +static struct nfs4_lock_state * +nfs_state_find_lock_state_by_stateid(struct nfs4_state *state, + const nfs4_stateid *stateid) +{ + struct nfs4_lock_state *pos; + + list_for_each_entry(pos, &state->lock_states, ls_locks) { + if (!test_bit(NFS_LOCK_INITIALIZED, &pos->ls_flags)) + continue; + if (nfs4_stateid_match_other(&pos->ls_stateid, stateid)) + return pos; + } + return NULL; +} + +static bool nfs_state_lock_state_matches_stateid(struct nfs4_state *state, + const nfs4_stateid *stateid) +{ + bool found = false; + + if (test_bit(LK_STATE_IN_USE, &state->flags)) { + spin_lock(&state->state_lock); + if (nfs_state_find_lock_state_by_stateid(state, stateid)) + found = true; + spin_unlock(&state->state_lock); + } + return found; +} + void nfs_inode_find_state_and_recover(struct inode *inode, const nfs4_stateid *stateid) { @@ -1354,14 +1385,18 @@ void nfs_inode_find_state_and_recover(struct inode *inode, state = ctx->state; if (state == NULL) continue; - if (!test_bit(NFS_DELEGATED_STATE, &state->flags)) - continue; - if (!nfs4_stateid_match(&state->stateid, stateid)) + if (nfs4_stateid_match_other(&state->stateid, stateid) && + nfs4_state_mark_reclaim_nograce(clp, state)) { + found = true; continue; - nfs4_state_mark_reclaim_nograce(clp, state); - found = true; + } + if (nfs_state_lock_state_matches_stateid(state, stateid) && + nfs4_state_mark_reclaim_nograce(clp, state)) + found = true; } spin_unlock(&inode->i_lock); + + nfs_inode_find_delegation_state_and_recover(inode, stateid); if (found) nfs4_schedule_state_manager(clp); } @@ -1501,6 +1536,9 @@ restart: __func__, status); case -ENOENT: case -ENOMEM: + case -EACCES: + case -EROFS: + case -EIO: case -ESTALE: /* Open state on this file cannot be recovered */ nfs4_state_mark_recovery_failed(state, status); @@ -1659,15 +1697,9 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp) put_rpccred(cred); } -static void nfs_delegation_clear_all(struct nfs_client *clp) -{ - nfs_delegation_mark_reclaim(clp); - nfs_delegation_reap_unclaimed(clp); -} - static void nfs4_state_start_reclaim_nograce(struct nfs_client *clp) { - nfs_delegation_clear_all(clp); + nfs_mark_test_expired_all_delegations(clp); nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce); } @@ -2198,7 +2230,7 @@ static void nfs41_handle_all_state_revoked(struct nfs_client *clp) static void nfs41_handle_some_state_revoked(struct nfs_client *clp) { - nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce); + nfs4_state_start_reclaim_nograce(clp); nfs4_schedule_state_manager(clp); dprintk("%s: state revoked on server %s\n", __func__, clp->cl_hostname); @@ -2230,13 +2262,22 @@ static void nfs41_handle_cb_path_down(struct nfs_client *clp) nfs4_schedule_state_manager(clp); } -void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags) +void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags, + bool recovery) { if (!flags) return; dprintk("%s: \"%s\" (client ID %llx) flags=0x%08x\n", __func__, clp->cl_hostname, clp->cl_clientid, flags); + /* + * If we're called from the state manager thread, then assume we're + * already handling the RECLAIM_NEEDED and/or STATE_REVOKED. + * Those flags are expected to remain set until we're done + * recovering (see RFC5661, section 18.46.3). + */ + if (recovery) + goto out_recovery; if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED) nfs41_handle_server_reboot(clp); @@ -2249,6 +2290,7 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags) nfs4_schedule_lease_moved_recovery(clp); if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED) nfs41_handle_recallable_state_revoked(clp); +out_recovery: if (flags & SEQ4_STATUS_BACKCHANNEL_FAULT) nfs41_handle_backchannel_fault(clp); else if (flags & (SEQ4_STATUS_CB_PATH_DOWN | @@ -2413,6 +2455,13 @@ static void nfs4_state_manager(struct nfs_client *clp) nfs4_state_end_reclaim_reboot(clp); } + /* Detect expired delegations... */ + if (test_and_clear_bit(NFS4CLNT_DELEGATION_EXPIRED, &clp->cl_state)) { + section = "detect expired delegations"; + nfs_reap_expired_delegations(clp); + continue; + } + /* Now recover expired state... */ if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) { section = "reclaim nograce"; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 7bd3a5c09d31..fc89e5ed07ee 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1850,7 +1850,7 @@ static void encode_create_session(struct xdr_stream *xdr, *p++ = cpu_to_be32(RPC_AUTH_UNIX); /* auth_sys */ /* authsys_parms rfc1831 */ - *p++ = cpu_to_be32(nn->boot_time.tv_nsec); /* stamp */ + *p++ = cpu_to_be32(ktime_to_ns(nn->boot_time)); /* stamp */ p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); *p++ = cpu_to_be32(0); /* UID */ *p++ = cpu_to_be32(0); /* GID */ @@ -4725,34 +4725,37 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, } /* - * Decode potentially multiple layout types. Currently we only support - * one layout driver per file system. + * Decode potentially multiple layout types. */ -static int decode_first_pnfs_layout_type(struct xdr_stream *xdr, - uint32_t *layouttype) +static int decode_pnfs_layout_types(struct xdr_stream *xdr, + struct nfs_fsinfo *fsinfo) { __be32 *p; - int num; + uint32_t i; p = xdr_inline_decode(xdr, 4); if (unlikely(!p)) goto out_overflow; - num = be32_to_cpup(p); + fsinfo->nlayouttypes = be32_to_cpup(p); /* pNFS is not supported by the underlying file system */ - if (num == 0) { - *layouttype = 0; + if (fsinfo->nlayouttypes == 0) return 0; - } - if (num > 1) - printk(KERN_INFO "NFS: %s: Warning: Multiple pNFS layout " - "drivers per filesystem not supported\n", __func__); /* Decode and set first layout type, move xdr->p past unused types */ - p = xdr_inline_decode(xdr, num * 4); + p = xdr_inline_decode(xdr, fsinfo->nlayouttypes * 4); if (unlikely(!p)) goto out_overflow; - *layouttype = be32_to_cpup(p); + + /* If we get too many, then just cap it at the max */ + if (fsinfo->nlayouttypes > NFS_MAX_LAYOUT_TYPES) { + printk(KERN_INFO "NFS: %s: Warning: Too many (%u) pNFS layout types\n", + __func__, fsinfo->nlayouttypes); + fsinfo->nlayouttypes = NFS_MAX_LAYOUT_TYPES; + } + + for(i = 0; i < fsinfo->nlayouttypes; ++i) + fsinfo->layouttype[i] = be32_to_cpup(p++); return 0; out_overflow: print_overflow_msg(__func__, xdr); @@ -4764,7 +4767,7 @@ out_overflow: * Note we must ensure that layouttype is set in any non-error case. */ static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, - uint32_t *layouttype) + struct nfs_fsinfo *fsinfo) { int status = 0; @@ -4772,10 +4775,9 @@ static int decode_attr_pnfstype(struct xdr_stream *xdr, uint32_t *bitmap, if (unlikely(bitmap[1] & (FATTR4_WORD1_FS_LAYOUT_TYPES - 1U))) return -EIO; if (bitmap[1] & FATTR4_WORD1_FS_LAYOUT_TYPES) { - status = decode_first_pnfs_layout_type(xdr, layouttype); + status = decode_pnfs_layout_types(xdr, fsinfo); bitmap[1] &= ~FATTR4_WORD1_FS_LAYOUT_TYPES; - } else - *layouttype = 0; + } return status; } @@ -4856,7 +4858,7 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo) status = decode_attr_time_delta(xdr, bitmap, &fsinfo->time_delta); if (status != 0) goto xdr_error; - status = decode_attr_pnfstype(xdr, bitmap, &fsinfo->layouttype); + status = decode_attr_pnfstype(xdr, bitmap, fsinfo); if (status != 0) goto xdr_error; diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 174dd4cf5747..965db474f4b0 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -342,7 +342,7 @@ nfs_create_request(struct nfs_open_context *ctx, struct page *page, * update_nfs_request below if the region is not locked. */ req->wb_page = page; if (page) { - req->wb_index = page_file_index(page); + req->wb_index = page_index(page); get_page(page); } req->wb_offset = offset; diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 70806cae0d36..56b2d96f9103 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -30,6 +30,7 @@ #include <linux/nfs_fs.h> #include <linux/nfs_page.h> #include <linux/module.h> +#include <linux/sort.h> #include "internal.h" #include "pnfs.h" #include "iostat.h" @@ -99,35 +100,79 @@ unset_pnfs_layoutdriver(struct nfs_server *nfss) } /* + * When the server sends a list of layout types, we choose one in the order + * given in the list below. + * + * FIXME: should this list be configurable in some fashion? module param? + * mount option? something else? + */ +static const u32 ld_prefs[] = { + LAYOUT_SCSI, + LAYOUT_BLOCK_VOLUME, + LAYOUT_OSD2_OBJECTS, + LAYOUT_FLEX_FILES, + LAYOUT_NFSV4_1_FILES, + 0 +}; + +static int +ld_cmp(const void *e1, const void *e2) +{ + u32 ld1 = *((u32 *)e1); + u32 ld2 = *((u32 *)e2); + int i; + + for (i = 0; ld_prefs[i] != 0; i++) { + if (ld1 == ld_prefs[i]) + return -1; + + if (ld2 == ld_prefs[i]) + return 1; + } + return 0; +} + +/* * Try to set the server's pnfs module to the pnfs layout type specified by id. * Currently only one pNFS layout driver per filesystem is supported. * - * @id layout type. Zero (illegal layout type) indicates pNFS not in use. + * @ids array of layout types supported by MDS. */ void set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh, - u32 id) + struct nfs_fsinfo *fsinfo) { struct pnfs_layoutdriver_type *ld_type = NULL; + u32 id; + int i; - if (id == 0) - goto out_no_driver; if (!(server->nfs_client->cl_exchange_flags & (EXCHGID4_FLAG_USE_NON_PNFS | EXCHGID4_FLAG_USE_PNFS_MDS))) { - printk(KERN_ERR "NFS: %s: id %u cl_exchange_flags 0x%x\n", - __func__, id, server->nfs_client->cl_exchange_flags); + printk(KERN_ERR "NFS: %s: cl_exchange_flags 0x%x\n", + __func__, server->nfs_client->cl_exchange_flags); goto out_no_driver; } - ld_type = find_pnfs_driver(id); - if (!ld_type) { - request_module("%s-%u", LAYOUT_NFSV4_1_MODULE_PREFIX, id); + + sort(fsinfo->layouttype, fsinfo->nlayouttypes, + sizeof(*fsinfo->layouttype), ld_cmp, NULL); + + for (i = 0; i < fsinfo->nlayouttypes; i++) { + id = fsinfo->layouttype[i]; ld_type = find_pnfs_driver(id); if (!ld_type) { - dprintk("%s: No pNFS module found for %u.\n", - __func__, id); - goto out_no_driver; + request_module("%s-%u", LAYOUT_NFSV4_1_MODULE_PREFIX, + id); + ld_type = find_pnfs_driver(id); } + if (ld_type) + break; } + + if (!ld_type) { + dprintk("%s: No pNFS module found!\n", __func__); + goto out_no_driver; + } + server->pnfs_curr_ld = ld_type; if (ld_type->set_layoutdriver && ld_type->set_layoutdriver(server, mntfh)) { @@ -365,7 +410,8 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo, /* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */ atomic_dec(&lo->plh_refcount); if (list_empty(&lo->plh_segs)) { - set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + if (atomic_read(&lo->plh_outstanding) == 0) + set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags); } rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq); @@ -768,17 +814,32 @@ pnfs_destroy_all_layouts(struct nfs_client *clp) pnfs_destroy_layouts_byclid(clp, false); } +static void +pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) +{ + lo->plh_return_iomode = 0; + lo->plh_return_seq = 0; + clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); +} + /* update lo->plh_stateid with new if is more recent */ void pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, bool update_barrier) { u32 oldseq, newseq, new_barrier = 0; - bool invalid = !pnfs_layout_is_valid(lo); oldseq = be32_to_cpu(lo->plh_stateid.seqid); newseq = be32_to_cpu(new->seqid); - if (invalid || pnfs_seqid_is_newer(newseq, oldseq)) { + + if (!pnfs_layout_is_valid(lo)) { + nfs4_stateid_copy(&lo->plh_stateid, new); + lo->plh_barrier = newseq; + pnfs_clear_layoutreturn_info(lo); + clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); + return; + } + if (pnfs_seqid_is_newer(newseq, oldseq)) { nfs4_stateid_copy(&lo->plh_stateid, new); /* * Because of wraparound, we want to keep the barrier @@ -790,7 +851,7 @@ pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, new_barrier = be32_to_cpu(new->seqid); else if (new_barrier == 0) return; - if (invalid || pnfs_seqid_is_newer(new_barrier, lo->plh_barrier)) + if (pnfs_seqid_is_newer(new_barrier, lo->plh_barrier)) lo->plh_barrier = new_barrier; } @@ -886,19 +947,14 @@ void pnfs_clear_layoutreturn_waitbit(struct pnfs_layout_hdr *lo) rpc_wake_up(&NFS_SERVER(lo->plh_inode)->roc_rpcwaitq); } -static void -pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo) -{ - lo->plh_return_iomode = 0; - lo->plh_return_seq = 0; - clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags); -} - static bool pnfs_prepare_layoutreturn(struct pnfs_layout_hdr *lo, nfs4_stateid *stateid, enum pnfs_iomode *iomode) { + /* Serialise LAYOUTGET/LAYOUTRETURN */ + if (atomic_read(&lo->plh_outstanding) != 0) + return false; if (test_and_set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags)) return false; pnfs_get_layout_hdr(lo); @@ -1555,6 +1611,7 @@ pnfs_update_layout(struct inode *ino, } lookup_again: + nfs4_client_recover_expired_lease(clp); first = false; spin_lock(&ino->i_lock); lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); @@ -1797,16 +1854,11 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) */ pnfs_mark_layout_stateid_invalid(lo, &free_me); - nfs4_stateid_copy(&lo->plh_stateid, &res->stateid); - lo->plh_barrier = be32_to_cpu(res->stateid.seqid); + pnfs_set_layout_stateid(lo, &res->stateid, true); } pnfs_get_lseg(lseg); pnfs_layout_insert_lseg(lo, lseg, &free_me); - if (!pnfs_layout_is_valid(lo)) { - pnfs_clear_layoutreturn_info(lo); - clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags); - } if (res->return_on_close) @@ -2178,10 +2230,8 @@ static void pnfs_ld_handle_read_error(struct nfs_pgio_header *hdr) */ void pnfs_ld_read_done(struct nfs_pgio_header *hdr) { - if (likely(!hdr->pnfs_error)) { - __nfs4_read_done_cb(hdr); + if (likely(!hdr->pnfs_error)) hdr->mds_ops->rpc_call_done(&hdr->task, hdr); - } trace_nfs4_pnfs_read(hdr, hdr->pnfs_error); if (unlikely(hdr->pnfs_error)) pnfs_ld_handle_read_error(hdr); @@ -2510,7 +2560,6 @@ pnfs_report_layoutstat(struct inode *inode, gfp_t gfp_flags) data->args.fh = NFS_FH(inode); data->args.inode = inode; - nfs4_stateid_copy(&data->args.stateid, &hdr->plh_stateid); status = ld->prepare_layoutstats(&data->args); if (status) goto out_free; diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 31d99b2927b0..5c295512c967 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -236,7 +236,7 @@ void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo); void pnfs_put_lseg(struct pnfs_layout_segment *lseg); void pnfs_put_lseg_locked(struct pnfs_layout_segment *lseg); -void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, u32); +void set_pnfs_layoutdriver(struct nfs_server *, const struct nfs_fh *, struct nfs_fsinfo *); void unset_pnfs_layoutdriver(struct nfs_server *); void pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *, struct nfs_page *); int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc); @@ -657,7 +657,8 @@ pnfs_wait_on_layoutreturn(struct inode *ino, struct rpc_task *task) } static inline void set_pnfs_layoutdriver(struct nfs_server *s, - const struct nfs_fh *mntfh, u32 id) + const struct nfs_fh *mntfh, + struct nfs_fsinfo *fsinfo) { } diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index f3468b57a32a..53b4705abcc7 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -690,13 +690,50 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, dprintk("%s: DS %s: trying address %s\n", __func__, ds->ds_remotestr, da->da_remotestr); - clp = nfs4_set_ds_client(mds_srv, - (struct sockaddr *)&da->da_addr, - da->da_addrlen, IPPROTO_TCP, - timeo, retrans, minor_version, - au_flavor); - if (!IS_ERR(clp)) - break; + if (!IS_ERR(clp) && clp->cl_mvops->session_trunk) { + struct xprt_create xprt_args = { + .ident = XPRT_TRANSPORT_TCP, + .net = clp->cl_net, + .dstaddr = (struct sockaddr *)&da->da_addr, + .addrlen = da->da_addrlen, + .servername = clp->cl_hostname, + }; + struct nfs4_add_xprt_data xprtdata = { + .clp = clp, + .cred = nfs4_get_clid_cred(clp), + }; + struct rpc_add_xprt_test rpcdata = { + .add_xprt_test = clp->cl_mvops->session_trunk, + .data = &xprtdata, + }; + + /** + * Test this address for session trunking and + * add as an alias + */ + rpc_clnt_add_xprt(clp->cl_rpcclient, &xprt_args, + rpc_clnt_setup_test_and_add_xprt, + &rpcdata); + if (xprtdata.cred) + put_rpccred(xprtdata.cred); + } else { + clp = nfs4_set_ds_client(mds_srv, + (struct sockaddr *)&da->da_addr, + da->da_addrlen, IPPROTO_TCP, + timeo, retrans, minor_version, + au_flavor); + if (IS_ERR(clp)) + continue; + + status = nfs4_init_ds_session(clp, + mds_srv->nfs_client->cl_lease_time); + if (status) { + nfs_put_client(clp); + clp = ERR_PTR(-EIO); + continue; + } + + } } if (IS_ERR(clp)) { @@ -704,18 +741,11 @@ static int _nfs4_pnfs_v4_ds_connect(struct nfs_server *mds_srv, goto out; } - status = nfs4_init_ds_session(clp, mds_srv->nfs_client->cl_lease_time); - if (status) - goto out_put; - smp_wmb(); ds->ds_clp = clp; dprintk("%s [new] addr: %s\n", __func__, ds->ds_remotestr); out: return status; -out_put: - nfs_put_client(clp); - goto out; } /* diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 572e5b3b06f1..defc9233e985 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -295,7 +295,7 @@ int nfs_readpage(struct file *file, struct page *page) int error; dprintk("NFS: nfs_readpage (%p %ld@%lu)\n", - page, PAGE_SIZE, page_file_index(page)); + page, PAGE_SIZE, page_index(page)); nfs_inc_stats(inode, NFSIOS_VFSREADPAGE); nfs_add_stats(inode, NFSIOS_READPAGES, 1); diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 18d446e1a82b..001796bcd6c8 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -923,6 +923,8 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void) data = kzalloc(sizeof(*data), GFP_KERNEL); if (data) { + data->timeo = NFS_UNSPEC_TIMEO; + data->retrans = NFS_UNSPEC_RETRANS; data->acregmin = NFS_DEF_ACREGMIN; data->acregmax = NFS_DEF_ACREGMAX; data->acdirmin = NFS_DEF_ACDIRMIN; @@ -1189,6 +1191,19 @@ static int nfs_get_option_ul(substring_t args[], unsigned long *option) return rc; } +static int nfs_get_option_ul_bound(substring_t args[], unsigned long *option, + unsigned long l_bound, unsigned long u_bound) +{ + int ret; + + ret = nfs_get_option_ul(args, option); + if (ret != 0) + return ret; + if (*option < l_bound || *option > u_bound) + return -ERANGE; + return 0; +} + /* * Error-check and convert a string of mount options from user space into * a data structure. The whole mount string is processed; bad options are @@ -1352,12 +1367,12 @@ static int nfs_parse_mount_options(char *raw, mnt->bsize = option; break; case Opt_timeo: - if (nfs_get_option_ul(args, &option) || option == 0) + if (nfs_get_option_ul_bound(args, &option, 1, INT_MAX)) goto out_invalid_value; mnt->timeo = option; break; case Opt_retrans: - if (nfs_get_option_ul(args, &option) || option == 0) + if (nfs_get_option_ul_bound(args, &option, 0, INT_MAX)) goto out_invalid_value; mnt->retrans = option; break; @@ -2833,19 +2848,23 @@ out_invalid_transport_udp: * NFS client for backwards compatibility */ unsigned int nfs_callback_set_tcpport; +unsigned short nfs_callback_nr_threads; /* Default cache timeout is 10 minutes */ unsigned int nfs_idmap_cache_timeout = 600; /* Turn off NFSv4 uid/gid mapping when using AUTH_SYS */ bool nfs4_disable_idmapping = true; unsigned short max_session_slots = NFS4_DEF_SLOT_TABLE_SIZE; +unsigned short max_session_cb_slots = NFS4_DEF_CB_SLOT_TABLE_SIZE; unsigned short send_implementation_id = 1; char nfs4_client_id_uniquifier[NFS4_CLIENT_ID_UNIQ_LEN] = ""; bool recover_lost_locks = false; +EXPORT_SYMBOL_GPL(nfs_callback_nr_threads); EXPORT_SYMBOL_GPL(nfs_callback_set_tcpport); EXPORT_SYMBOL_GPL(nfs_idmap_cache_timeout); EXPORT_SYMBOL_GPL(nfs4_disable_idmapping); EXPORT_SYMBOL_GPL(max_session_slots); +EXPORT_SYMBOL_GPL(max_session_cb_slots); EXPORT_SYMBOL_GPL(send_implementation_id); EXPORT_SYMBOL_GPL(nfs4_client_id_uniquifier); EXPORT_SYMBOL_GPL(recover_lost_locks); @@ -2872,6 +2891,9 @@ static const struct kernel_param_ops param_ops_portnr = { #define param_check_portnr(name, p) __param_check(name, p, unsigned int); module_param_named(callback_tcpport, nfs_callback_set_tcpport, portnr, 0644); +module_param_named(callback_nr_threads, nfs_callback_nr_threads, ushort, 0644); +MODULE_PARM_DESC(callback_nr_threads, "Number of threads that will be " + "assigned to the NFSv4 callback channels."); module_param(nfs_idmap_cache_timeout, int, 0644); module_param(nfs4_disable_idmapping, bool, 0644); module_param_string(nfs4_unique_id, nfs4_client_id_uniquifier, @@ -2881,6 +2903,9 @@ MODULE_PARM_DESC(nfs4_disable_idmapping, module_param(max_session_slots, ushort, 0644); MODULE_PARM_DESC(max_session_slots, "Maximum number of outstanding NFSv4.1 " "requests the client will negotiate"); +module_param(max_session_cb_slots, ushort, 0644); +MODULE_PARM_DESC(max_session_slots, "Maximum number of parallel NFSv4.1 " + "callbacks the client will process for a given server"); module_param(send_implementation_id, ushort, 0644); MODULE_PARM_DESC(send_implementation_id, "Send implementation ID with NFSv4.1 exchange_id"); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3a6724c6eb5f..53211838f72a 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -151,7 +151,7 @@ static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int c spin_lock(&inode->i_lock); i_size = i_size_read(inode); end_index = (i_size - 1) >> PAGE_SHIFT; - if (i_size > 0 && page_file_index(page) < end_index) + if (i_size > 0 && page_index(page) < end_index) goto out; end = page_file_offset(page) + ((loff_t)offset+count); if (i_size >= end) @@ -603,7 +603,7 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, { int ret; - nfs_pageio_cond_complete(pgio, page_file_index(page)); + nfs_pageio_cond_complete(pgio, page_index(page)); ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE, launder); if (ret == -EAGAIN) { |
