diff options
Diffstat (limited to 'fs/nfs/nfs4proc.c')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 124 |
1 files changed, 92 insertions, 32 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 76d37161409a..69b7ab7a5815 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1097,11 +1097,12 @@ static int nfs4_call_sync_custom(struct rpc_task_setup *task_setup) return ret; } -static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, - struct nfs_server *server, - struct rpc_message *msg, - struct nfs4_sequence_args *args, - struct nfs4_sequence_res *res) +static int nfs4_do_call_sync(struct rpc_clnt *clnt, + struct nfs_server *server, + struct rpc_message *msg, + struct nfs4_sequence_args *args, + struct nfs4_sequence_res *res, + unsigned short task_flags) { struct nfs_client *clp = server->nfs_client; struct nfs4_call_sync_data data = { @@ -1113,12 +1114,23 @@ static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, .rpc_client = clnt, .rpc_message = msg, .callback_ops = clp->cl_mvops->call_sync_ops, - .callback_data = &data + .callback_data = &data, + .flags = task_flags, }; return nfs4_call_sync_custom(&task_setup); } +static int nfs4_call_sync_sequence(struct rpc_clnt *clnt, + struct nfs_server *server, + struct rpc_message *msg, + struct nfs4_sequence_args *args, + struct nfs4_sequence_res *res) +{ + return nfs4_do_call_sync(clnt, server, msg, args, res, 0); +} + + int nfs4_call_sync(struct rpc_clnt *clnt, struct nfs_server *server, struct rpc_message *msg, @@ -2962,10 +2974,13 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, struct dentry *dentry; struct nfs4_state *state; fmode_t acc_mode = _nfs4_ctx_to_accessmode(ctx); + struct inode *dir = d_inode(opendata->dir); + unsigned long dir_verifier; unsigned int seq; int ret; seq = raw_seqcount_begin(&sp->so_reclaim_seqcount); + dir_verifier = nfs_save_change_attribute(dir); ret = _nfs4_proc_open(opendata, ctx); if (ret != 0) @@ -2993,8 +3008,19 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata, dput(ctx->dentry); ctx->dentry = dentry = alias; } - nfs_set_verifier(dentry, - nfs_save_change_attribute(d_inode(opendata->dir))); + } + + switch(opendata->o_arg.claim) { + default: + break; + case NFS4_OPEN_CLAIM_NULL: + case NFS4_OPEN_CLAIM_DELEGATE_CUR: + case NFS4_OPEN_CLAIM_DELEGATE_PREV: + if (!opendata->rpc_done) + break; + if (opendata->o_res.delegation_type != 0) + dir_verifier = nfs_save_change_attribute(dir); + nfs_set_verifier(dentry, dir_verifier); } /* Parse layoutget results before we check for access */ @@ -3187,6 +3213,11 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, exception.retry = 1; continue; } + if (status == -NFS4ERR_EXPIRED) { + nfs4_schedule_lease_recovery(server->nfs_client); + exception.retry = 1; + continue; + } if (status == -EAGAIN) { /* We must have found a delegation */ exception.retry = 1; @@ -3239,6 +3270,8 @@ static int _nfs4_do_setattr(struct inode *inode, nfs_put_lock_context(l_ctx); if (status == -EIO) return -EBADF; + else if (status == -EAGAIN) + goto zero_stateid; } else { zero_stateid: nfs4_stateid_copy(&arg->stateid, &zero_stateid); @@ -4064,11 +4097,18 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, .rpc_argp = &args, .rpc_resp = &res, }; + unsigned short task_flags = 0; + + /* Is this is an attribute revalidation, subject to softreval? */ + if (inode && (server->flags & NFS_MOUNT_SOFTREVAL)) + task_flags |= RPC_TASK_TIMEOUT; nfs4_bitmap_copy_adjust(bitmask, nfs4_bitmask(server, label), inode); nfs_fattr_init(fattr); - return nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); + nfs4_init_sequence(&args.seq_args, &res.seq_res, 0, 0); + return nfs4_do_call_sync(server->client, server, &msg, + &args.seq_args, &res.seq_res, task_flags); } int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, @@ -4156,7 +4196,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, } static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, - const struct qstr *name, struct nfs_fh *fhandle, + struct dentry *dentry, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label) { struct nfs_server *server = NFS_SERVER(dir); @@ -4164,7 +4204,7 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct nfs4_lookup_arg args = { .bitmask = server->attr_bitmask, .dir_fh = NFS_FH(dir), - .name = name, + .name = &dentry->d_name, }; struct nfs4_lookup_res res = { .server = server, @@ -4177,13 +4217,20 @@ static int _nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, .rpc_argp = &args, .rpc_resp = &res, }; + unsigned short task_flags = 0; + + /* Is this is an attribute revalidation, subject to softreval? */ + if (nfs_lookup_is_soft_revalidate(dentry)) + task_flags |= RPC_TASK_TIMEOUT; args.bitmask = nfs4_bitmask(server, label); nfs_fattr_init(fattr); - dprintk("NFS call lookup %s\n", name->name); - status = nfs4_call_sync(clnt, server, &msg, &args.seq_args, &res.seq_res, 0); + dprintk("NFS call lookup %pd2\n", dentry); + nfs4_init_sequence(&args.seq_args, &res.seq_res, 0, 0); + status = nfs4_do_call_sync(clnt, server, &msg, + &args.seq_args, &res.seq_res, task_flags); dprintk("NFS reply lookup: %d\n", status); return status; } @@ -4197,16 +4244,17 @@ static void nfs_fixup_secinfo_attributes(struct nfs_fattr *fattr) } static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir, - const struct qstr *name, struct nfs_fh *fhandle, + struct dentry *dentry, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label) { struct nfs4_exception exception = { .interruptible = true, }; struct rpc_clnt *client = *clnt; + const struct qstr *name = &dentry->d_name; int err; do { - err = _nfs4_proc_lookup(client, dir, name, fhandle, fattr, label); + err = _nfs4_proc_lookup(client, dir, dentry, fhandle, fattr, label); trace_nfs4_lookup(dir, name, err); switch (err) { case -NFS4ERR_BADNAME: @@ -4241,14 +4289,14 @@ out: return err; } -static int nfs4_proc_lookup(struct inode *dir, const struct qstr *name, +static int nfs4_proc_lookup(struct inode *dir, struct dentry *dentry, struct nfs_fh *fhandle, struct nfs_fattr *fattr, struct nfs4_label *label) { int status; struct rpc_clnt *client = NFS_CLIENT(dir); - status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, label); + status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr, label); if (client != NFS_CLIENT(dir)) { rpc_shutdown_client(client); nfs_fixup_secinfo_attributes(fattr); @@ -4257,13 +4305,13 @@ static int nfs4_proc_lookup(struct inode *dir, const struct qstr *name, } struct rpc_clnt * -nfs4_proc_lookup_mountpoint(struct inode *dir, const struct qstr *name, +nfs4_proc_lookup_mountpoint(struct inode *dir, struct dentry *dentry, struct nfs_fh *fhandle, struct nfs_fattr *fattr) { struct rpc_clnt *client = NFS_CLIENT(dir); int status; - status = nfs4_proc_lookup_common(&client, dir, name, fhandle, fattr, NULL); + status = nfs4_proc_lookup_common(&client, dir, dentry, fhandle, fattr, NULL); if (status < 0) return ERR_PTR(status); return (client == NFS_CLIENT(dir)) ? rpc_clone_client(client) : client; @@ -5019,16 +5067,13 @@ static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, str struct nfs4_exception exception = { .interruptible = true, }; - unsigned long now = jiffies; int err; do { err = _nfs4_do_fsinfo(server, fhandle, fsinfo); trace_nfs4_fsinfo(server, fhandle, fsinfo->fattr, err); if (err == 0) { - nfs4_set_lease_period(server->nfs_client, - fsinfo->lease_time * HZ, - now); + nfs4_set_lease_period(server->nfs_client, fsinfo->lease_time * HZ); break; } err = nfs4_handle_exception(server, err, &exception); @@ -5291,7 +5336,7 @@ static void nfs4_proc_write_setup(struct nfs_pgio_header *hdr, hdr->timestamp = jiffies; msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE]; - nfs4_init_sequence(&hdr->args.seq_args, &hdr->res.seq_res, 1, 0); + nfs4_init_sequence(&hdr->args.seq_args, &hdr->res.seq_res, 0, 0); nfs4_state_protect_write(server->nfs_client, clnt, msg, hdr); } @@ -5582,10 +5627,9 @@ out: */ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen) { - struct page *pages[NFS4ACL_MAXPAGES + 1] = {NULL, }; + struct page **pages; struct nfs_getaclargs args = { .fh = NFS_FH(inode), - .acl_pages = pages, .acl_len = buflen, }; struct nfs_getaclres res = { @@ -5596,11 +5640,19 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu .rpc_argp = &args, .rpc_resp = &res, }; - unsigned int npages = DIV_ROUND_UP(buflen, PAGE_SIZE) + 1; + unsigned int npages; int ret = -ENOMEM, i; + struct nfs_server *server = NFS_SERVER(inode); - if (npages > ARRAY_SIZE(pages)) - return -ERANGE; + if (buflen == 0) + buflen = server->rsize; + + npages = DIV_ROUND_UP(buflen, PAGE_SIZE) + 1; + pages = kmalloc_array(npages, sizeof(struct page *), GFP_NOFS); + if (!pages) + return -ENOMEM; + + args.acl_pages = pages; for (i = 0; i < npages; i++) { pages[i] = alloc_page(GFP_KERNEL); @@ -5646,6 +5698,7 @@ out_free: __free_page(pages[i]); if (res.acl_scratch) __free_page(res.acl_scratch); + kfree(pages); return ret; } @@ -6084,6 +6137,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, .callback_data = &setclientid, .flags = RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN, }; + unsigned long now = jiffies; int status; /* nfs_client_id4 */ @@ -6116,6 +6170,9 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, clp->cl_acceptor = rpcauth_stringify_acceptor(setclientid.sc_cred); put_rpccred(setclientid.sc_cred); } + + if (status == 0) + do_renew_lease(clp, now); out: trace_nfs4_setclientid(clp, status); dprintk("NFS reply setclientid: %d\n", status); @@ -6859,7 +6916,7 @@ static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_ case -NFS4ERR_STALE_STATEID: lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; nfs4_schedule_lease_recovery(server->nfs_client); - }; + } } static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *fl, int recovery_type) @@ -8203,6 +8260,7 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cre struct rpc_task *task; struct nfs41_exchange_id_args *argp; struct nfs41_exchange_id_res *resp; + unsigned long now = jiffies; int status; task = nfs4_run_exchange_id(clp, cred, sp4_how, NULL); @@ -8223,6 +8281,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, const struct cred *cre if (status != 0) goto out; + do_renew_lease(clp, now); + clp->cl_clientid = resp->clientid; clp->cl_exchange_flags = resp->flags; clp->cl_seqid = resp->seqid; @@ -8626,7 +8686,7 @@ static int _nfs4_proc_create_session(struct nfs_client *clp, case -EACCES: case -EAGAIN: goto out; - }; + } clp->cl_seqid++; if (!status) { @@ -10001,7 +10061,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = { .file_ops = &nfs4_file_operations, .getroot = nfs4_proc_get_root, .submount = nfs4_submount, - .try_mount = nfs4_try_mount, + .try_get_tree = nfs4_try_get_tree, .getattr = nfs4_proc_getattr, .setattr = nfs4_proc_setattr, .lookup = nfs4_proc_lookup, |
