Merge commit '24bab491220f' into client-4.2
- Pull in patch 'NFSD: Implement SEEK' from Bruce's nfsd-next tree for dependencies.
This commit is contained in:
commit
4a3a0ebad1
|
@ -233,9 +233,13 @@ if NETWORK_FILESYSTEMS
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source "fs/nfs/Kconfig"
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source "fs/nfsd/Kconfig"
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config GRACE_PERIOD
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tristate
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config LOCKD
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tristate
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depends on FILE_LOCKING
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select GRACE_PERIOD
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config LOCKD_V4
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bool
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@ -249,7 +253,7 @@ config NFS_ACL_SUPPORT
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config NFS_COMMON
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bool
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depends on NFSD || NFS_FS
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depends on NFSD || NFS_FS || LOCKD
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default y
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source "net/sunrpc/Kconfig"
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@ -5,6 +5,7 @@
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obj-$(CONFIG_LOCKD) += lockd.o
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lockd-objs-y := clntlock.o clntproc.o clntxdr.o host.o svc.o svclock.o \
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svcshare.o svcproc.o svcsubs.o mon.o xdr.o grace.o
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svcshare.o svcproc.o svcsubs.o mon.o xdr.o
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lockd-objs-$(CONFIG_LOCKD_V4) += clnt4xdr.o xdr4.o svc4proc.o
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lockd-objs-$(CONFIG_PROC_FS) += procfs.o
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lockd-objs := $(lockd-objs-y)
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@ -11,7 +11,6 @@ struct lockd_net {
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struct delayed_work grace_period_end;
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struct lock_manager lockd_manager;
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struct list_head grace_list;
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spinlock_t nsm_clnt_lock;
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unsigned int nsm_users;
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92
fs/lockd/procfs.c
Normal file
92
fs/lockd/procfs.c
Normal file
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@ -0,0 +1,92 @@
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/*
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* Procfs support for lockd
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*
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* Copyright (c) 2014 Jeff Layton <jlayton@primarydata.com>
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*/
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#include <linux/fs.h>
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#include <linux/proc_fs.h>
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#include <linux/module.h>
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#include <linux/nsproxy.h>
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#include <net/net_namespace.h>
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#include "netns.h"
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#include "procfs.h"
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/*
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* We only allow strings that start with 'Y', 'y', or '1'.
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*/
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static ssize_t
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nlm_end_grace_write(struct file *file, const char __user *buf, size_t size,
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loff_t *pos)
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{
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char *data;
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struct lockd_net *ln = net_generic(current->nsproxy->net_ns,
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lockd_net_id);
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if (size < 1)
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return -EINVAL;
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data = simple_transaction_get(file, buf, size);
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if (IS_ERR(data))
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return PTR_ERR(data);
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switch(data[0]) {
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case 'Y':
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case 'y':
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case '1':
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locks_end_grace(&ln->lockd_manager);
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break;
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default:
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return -EINVAL;
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}
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return size;
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}
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static ssize_t
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nlm_end_grace_read(struct file *file, char __user *buf, size_t size,
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loff_t *pos)
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{
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struct lockd_net *ln = net_generic(current->nsproxy->net_ns,
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lockd_net_id);
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char resp[3];
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resp[0] = list_empty(&ln->lockd_manager.list) ? 'Y' : 'N';
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resp[1] = '\n';
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resp[2] = '\0';
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return simple_read_from_buffer(buf, size, pos, resp, sizeof(resp));
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}
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static const struct file_operations lockd_end_grace_operations = {
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.write = nlm_end_grace_write,
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.read = nlm_end_grace_read,
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.llseek = default_llseek,
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.release = simple_transaction_release,
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.owner = THIS_MODULE,
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};
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int __init
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lockd_create_procfs(void)
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{
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struct proc_dir_entry *entry;
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entry = proc_mkdir("fs/lockd", NULL);
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if (!entry)
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return -ENOMEM;
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entry = proc_create("nlm_end_grace", S_IRUGO|S_IWUSR, entry,
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&lockd_end_grace_operations);
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if (!entry) {
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remove_proc_entry("fs/lockd", NULL);
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return -ENOMEM;
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}
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return 0;
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}
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void __exit
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lockd_remove_procfs(void)
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{
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remove_proc_entry("fs/lockd/nlm_end_grace", NULL);
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remove_proc_entry("fs/lockd", NULL);
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}
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28
fs/lockd/procfs.h
Normal file
28
fs/lockd/procfs.h
Normal file
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@ -0,0 +1,28 @@
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/*
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* Procfs support for lockd
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*
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* Copyright (c) 2014 Jeff Layton <jlayton@primarydata.com>
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*/
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#ifndef _LOCKD_PROCFS_H
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#define _LOCKD_PROCFS_H
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#include <linux/kconfig.h>
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#if IS_ENABLED(CONFIG_PROC_FS)
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int lockd_create_procfs(void);
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void lockd_remove_procfs(void);
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#else
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static inline int
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lockd_create_procfs(void)
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{
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return 0;
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}
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static inline void
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lockd_remove_procfs(void)
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{
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return;
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}
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#endif /* IS_ENABLED(CONFIG_PROC_FS) */
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#endif /* _LOCKD_PROCFS_H */
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@ -36,6 +36,7 @@
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#include <linux/nfs.h>
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#include "netns.h"
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#include "procfs.h"
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#define NLMDBG_FACILITY NLMDBG_SVC
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#define LOCKD_BUFSIZE (1024 + NLMSVC_XDRSIZE)
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@ -306,13 +307,16 @@ static int lockd_start_svc(struct svc_serv *serv)
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svc_sock_update_bufs(serv);
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serv->sv_maxconn = nlm_max_connections;
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nlmsvc_task = kthread_run(lockd, nlmsvc_rqst, "%s", serv->sv_name);
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nlmsvc_task = kthread_create(lockd, nlmsvc_rqst, "%s", serv->sv_name);
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if (IS_ERR(nlmsvc_task)) {
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error = PTR_ERR(nlmsvc_task);
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printk(KERN_WARNING
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"lockd_up: kthread_run failed, error=%d\n", error);
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goto out_task;
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}
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nlmsvc_rqst->rq_task = nlmsvc_task;
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wake_up_process(nlmsvc_task);
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dprintk("lockd_up: service started\n");
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return 0;
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@ -583,7 +587,7 @@ static int lockd_init_net(struct net *net)
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struct lockd_net *ln = net_generic(net, lockd_net_id);
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INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
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INIT_LIST_HEAD(&ln->grace_list);
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INIT_LIST_HEAD(&ln->lockd_manager.list);
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spin_lock_init(&ln->nsm_clnt_lock);
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return 0;
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}
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@ -617,8 +621,15 @@ static int __init init_nlm(void)
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err = register_pernet_subsys(&lockd_net_ops);
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if (err)
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goto err_pernet;
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err = lockd_create_procfs();
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if (err)
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goto err_procfs;
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return 0;
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err_procfs:
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unregister_pernet_subsys(&lockd_net_ops);
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err_pernet:
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#ifdef CONFIG_SYSCTL
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unregister_sysctl_table(nlm_sysctl_table);
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@ -631,6 +642,7 @@ static void __exit exit_nlm(void)
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{
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/* FIXME: delete all NLM clients */
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nlm_shutdown_hosts();
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lockd_remove_procfs();
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unregister_pernet_subsys(&lockd_net_ops);
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#ifdef CONFIG_SYSCTL
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unregister_sysctl_table(nlm_sysctl_table);
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|
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@ -235,7 +235,7 @@ static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt,
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cb_info->serv = serv;
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cb_info->rqst = rqstp;
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cb_info->task = kthread_run(callback_svc, cb_info->rqst,
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cb_info->task = kthread_create(callback_svc, cb_info->rqst,
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"nfsv4.%u-svc", minorversion);
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if (IS_ERR(cb_info->task)) {
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ret = PTR_ERR(cb_info->task);
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@ -244,6 +244,8 @@ static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt,
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cb_info->task = NULL;
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return ret;
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}
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rqstp->rq_task = cb_info->task;
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wake_up_process(cb_info->task);
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dprintk("nfs_callback_up: service started\n");
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return 0;
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}
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|
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@ -3,5 +3,6 @@
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#
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obj-$(CONFIG_NFS_ACL_SUPPORT) += nfs_acl.o
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nfs_acl-objs := nfsacl.o
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obj-$(CONFIG_GRACE_PERIOD) += grace.o
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|
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@ -1,17 +1,20 @@
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/*
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* Common code for control of lockd and nfsv4 grace periods.
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*
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* Transplanted from lockd code
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*/
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#include <linux/module.h>
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#include <linux/lockd/bind.h>
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#include <net/net_namespace.h>
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#include <net/netns/generic.h>
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#include <linux/fs.h>
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#include "netns.h"
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static int grace_net_id;
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static DEFINE_SPINLOCK(grace_lock);
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/**
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* locks_start_grace
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* @net: net namespace that this lock manager belongs to
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* @lm: who this grace period is for
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*
|
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* A grace period is a period during which locks should not be given
|
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|
@ -21,18 +24,20 @@ static DEFINE_SPINLOCK(grace_lock);
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*
|
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* This function is called to start a grace period.
|
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*/
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void locks_start_grace(struct net *net, struct lock_manager *lm)
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void
|
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locks_start_grace(struct net *net, struct lock_manager *lm)
|
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{
|
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struct lockd_net *ln = net_generic(net, lockd_net_id);
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struct list_head *grace_list = net_generic(net, grace_net_id);
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|
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spin_lock(&grace_lock);
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list_add(&lm->list, &ln->grace_list);
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list_add(&lm->list, grace_list);
|
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spin_unlock(&grace_lock);
|
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}
|
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EXPORT_SYMBOL_GPL(locks_start_grace);
|
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|
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/**
|
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* locks_end_grace
|
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* @net: net namespace that this lock manager belongs to
|
||||
* @lm: who this grace period is for
|
||||
*
|
||||
* Call this function to state that the given lock manager is ready to
|
||||
|
@ -41,7 +46,8 @@ EXPORT_SYMBOL_GPL(locks_start_grace);
|
|||
* Note that callers count on it being safe to call this more than once,
|
||||
* and the second call should be a no-op.
|
||||
*/
|
||||
void locks_end_grace(struct lock_manager *lm)
|
||||
void
|
||||
locks_end_grace(struct lock_manager *lm)
|
||||
{
|
||||
spin_lock(&grace_lock);
|
||||
list_del_init(&lm->list);
|
||||
|
@ -56,10 +62,52 @@ EXPORT_SYMBOL_GPL(locks_end_grace);
|
|||
* to answer ordinary lock requests, and when they should accept only
|
||||
* lock reclaims.
|
||||
*/
|
||||
int locks_in_grace(struct net *net)
|
||||
int
|
||||
locks_in_grace(struct net *net)
|
||||
{
|
||||
struct lockd_net *ln = net_generic(net, lockd_net_id);
|
||||
struct list_head *grace_list = net_generic(net, grace_net_id);
|
||||
|
||||
return !list_empty(&ln->grace_list);
|
||||
return !list_empty(grace_list);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(locks_in_grace);
|
||||
|
||||
static int __net_init
|
||||
grace_init_net(struct net *net)
|
||||
{
|
||||
struct list_head *grace_list = net_generic(net, grace_net_id);
|
||||
|
||||
INIT_LIST_HEAD(grace_list);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __net_exit
|
||||
grace_exit_net(struct net *net)
|
||||
{
|
||||
struct list_head *grace_list = net_generic(net, grace_net_id);
|
||||
|
||||
BUG_ON(!list_empty(grace_list));
|
||||
}
|
||||
|
||||
static struct pernet_operations grace_net_ops = {
|
||||
.init = grace_init_net,
|
||||
.exit = grace_exit_net,
|
||||
.id = &grace_net_id,
|
||||
.size = sizeof(struct list_head),
|
||||
};
|
||||
|
||||
static int __init
|
||||
init_grace(void)
|
||||
{
|
||||
return register_pernet_subsys(&grace_net_ops);
|
||||
}
|
||||
|
||||
static void __exit
|
||||
exit_grace(void)
|
||||
{
|
||||
unregister_pernet_subsys(&grace_net_ops);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Jeff Layton <jlayton@primarydata.com>");
|
||||
MODULE_LICENSE("GPL");
|
||||
module_init(init_grace)
|
||||
module_exit(exit_grace)
|
|
@ -71,6 +71,7 @@ config NFSD_V4
|
|||
select FS_POSIX_ACL
|
||||
select SUNRPC_GSS
|
||||
select CRYPTO
|
||||
select GRACE_PERIOD
|
||||
help
|
||||
This option enables support in your system's NFS server for
|
||||
version 4 of the NFS protocol (RFC 3530).
|
||||
|
@ -94,9 +95,6 @@ config NFSD_V4_SECURITY_LABEL
|
|||
If you do not wish to enable fine-grained security labels SELinux or
|
||||
Smack policies on NFSv4 files, say N.
|
||||
|
||||
WARNING: there is still a chance of backwards-incompatible protocol changes.
|
||||
For now we recommend "Y" only for developers and testers.
|
||||
|
||||
config NFSD_FAULT_INJECTION
|
||||
bool "NFS server manual fault injection"
|
||||
depends on NFSD_V4 && DEBUG_KERNEL
|
||||
|
|
|
@ -18,7 +18,6 @@
|
|||
* is much larger than a sockaddr_in6.
|
||||
*/
|
||||
struct svc_cacherep {
|
||||
struct hlist_node c_hash;
|
||||
struct list_head c_lru;
|
||||
|
||||
unsigned char c_state, /* unused, inprog, done */
|
||||
|
|
|
@ -1145,6 +1145,7 @@ static struct flags {
|
|||
{ NFSEXP_ALLSQUASH, {"all_squash", ""}},
|
||||
{ NFSEXP_ASYNC, {"async", "sync"}},
|
||||
{ NFSEXP_GATHERED_WRITES, {"wdelay", "no_wdelay"}},
|
||||
{ NFSEXP_NOREADDIRPLUS, {"nordirplus", ""}},
|
||||
{ NFSEXP_NOHIDE, {"nohide", ""}},
|
||||
{ NFSEXP_CROSSMOUNT, {"crossmnt", ""}},
|
||||
{ NFSEXP_NOSUBTREECHECK, {"no_subtree_check", ""}},
|
||||
|
|
|
@ -223,11 +223,6 @@ nfsd3_proc_create(struct svc_rqst *rqstp, struct nfsd3_createargs *argp,
|
|||
newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
|
||||
attr = &argp->attrs;
|
||||
|
||||
/* Get the directory inode */
|
||||
nfserr = fh_verify(rqstp, dirfhp, S_IFDIR, NFSD_MAY_CREATE);
|
||||
if (nfserr)
|
||||
RETURN_STATUS(nfserr);
|
||||
|
||||
/* Unfudge the mode bits */
|
||||
attr->ia_mode &= ~S_IFMT;
|
||||
if (!(attr->ia_valid & ATTR_MODE)) {
|
||||
|
@ -471,6 +466,14 @@ nfsd3_proc_readdirplus(struct svc_rqst *rqstp, struct nfsd3_readdirargs *argp,
|
|||
resp->buflen = resp->count;
|
||||
resp->rqstp = rqstp;
|
||||
offset = argp->cookie;
|
||||
|
||||
nfserr = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
|
||||
if (nfserr)
|
||||
RETURN_STATUS(nfserr);
|
||||
|
||||
if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS)
|
||||
RETURN_STATUS(nfserr_notsupp);
|
||||
|
||||
nfserr = nfsd_readdir(rqstp, &resp->fh,
|
||||
&offset,
|
||||
&resp->common,
|
||||
|
|
|
@ -49,11 +49,8 @@ static void nfsd4_mark_cb_fault(struct nfs4_client *, int reason);
|
|||
|
||||
/* Index of predefined Linux callback client operations */
|
||||
|
||||
enum {
|
||||
NFSPROC4_CLNT_CB_NULL = 0,
|
||||
NFSPROC4_CLNT_CB_RECALL,
|
||||
NFSPROC4_CLNT_CB_SEQUENCE,
|
||||
};
|
||||
#define to_delegation(cb) \
|
||||
container_of(cb, struct nfs4_delegation, dl_recall)
|
||||
|
||||
struct nfs4_cb_compound_hdr {
|
||||
/* args */
|
||||
|
@ -494,7 +491,7 @@ static void nfs4_xdr_enc_cb_null(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|||
static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
|
||||
const struct nfsd4_callback *cb)
|
||||
{
|
||||
const struct nfs4_delegation *args = cb->cb_op;
|
||||
const struct nfs4_delegation *dp = to_delegation(cb);
|
||||
struct nfs4_cb_compound_hdr hdr = {
|
||||
.ident = cb->cb_clp->cl_cb_ident,
|
||||
.minorversion = cb->cb_minorversion,
|
||||
|
@ -502,7 +499,7 @@ static void nfs4_xdr_enc_cb_recall(struct rpc_rqst *req, struct xdr_stream *xdr,
|
|||
|
||||
encode_cb_compound4args(xdr, &hdr);
|
||||
encode_cb_sequence4args(xdr, cb, &hdr);
|
||||
encode_cb_recall4args(xdr, args, &hdr);
|
||||
encode_cb_recall4args(xdr, dp, &hdr);
|
||||
encode_cb_nops(&hdr);
|
||||
}
|
||||
|
||||
|
@ -746,27 +743,6 @@ static const struct rpc_call_ops nfsd4_cb_probe_ops = {
|
|||
|
||||
static struct workqueue_struct *callback_wq;
|
||||
|
||||
static void run_nfsd4_cb(struct nfsd4_callback *cb)
|
||||
{
|
||||
queue_work(callback_wq, &cb->cb_work);
|
||||
}
|
||||
|
||||
static void do_probe_callback(struct nfs4_client *clp)
|
||||
{
|
||||
struct nfsd4_callback *cb = &clp->cl_cb_null;
|
||||
|
||||
cb->cb_op = NULL;
|
||||
cb->cb_clp = clp;
|
||||
|
||||
cb->cb_msg.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL];
|
||||
cb->cb_msg.rpc_argp = NULL;
|
||||
cb->cb_msg.rpc_resp = NULL;
|
||||
|
||||
cb->cb_ops = &nfsd4_cb_probe_ops;
|
||||
|
||||
run_nfsd4_cb(cb);
|
||||
}
|
||||
|
||||
/*
|
||||
* Poke the callback thread to process any updates to the callback
|
||||
* parameters, and send a null probe.
|
||||
|
@ -775,7 +751,7 @@ void nfsd4_probe_callback(struct nfs4_client *clp)
|
|||
{
|
||||
clp->cl_cb_state = NFSD4_CB_UNKNOWN;
|
||||
set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags);
|
||||
do_probe_callback(clp);
|
||||
nfsd4_run_cb(&clp->cl_cb_null);
|
||||
}
|
||||
|
||||
void nfsd4_probe_callback_sync(struct nfs4_client *clp)
|
||||
|
@ -847,23 +823,9 @@ static void nfsd4_cb_done(struct rpc_task *task, void *calldata)
|
|||
rpc_wake_up_next(&clp->cl_cb_waitq);
|
||||
dprintk("%s: freed slot, new seqid=%d\n", __func__,
|
||||
clp->cl_cb_session->se_cb_seq_nr);
|
||||
|
||||
/* We're done looking into the sequence information */
|
||||
task->tk_msg.rpc_resp = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
|
||||
{
|
||||
struct nfsd4_callback *cb = calldata;
|
||||
struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
|
||||
struct nfs4_client *clp = cb->cb_clp;
|
||||
struct rpc_clnt *current_rpc_client = clp->cl_cb_client;
|
||||
|
||||
nfsd4_cb_done(task, calldata);
|
||||
|
||||
if (current_rpc_client != task->tk_client) {
|
||||
if (clp->cl_cb_client != task->tk_client) {
|
||||
/* We're shutting down or changing cl_cb_client; leave
|
||||
* it to nfsd4_process_cb_update to restart the call if
|
||||
* necessary. */
|
||||
|
@ -872,47 +834,42 @@ static void nfsd4_cb_recall_done(struct rpc_task *task, void *calldata)
|
|||
|
||||
if (cb->cb_done)
|
||||
return;
|
||||
switch (task->tk_status) {
|
||||
|
||||
switch (cb->cb_ops->done(cb, task)) {
|
||||
case 0:
|
||||
cb->cb_done = true;
|
||||
return;
|
||||
case -EBADHANDLE:
|
||||
case -NFS4ERR_BAD_STATEID:
|
||||
/* Race: client probably got cb_recall
|
||||
* before open reply granting delegation */
|
||||
break;
|
||||
default:
|
||||
/* Network partition? */
|
||||
nfsd4_mark_cb_down(clp, task->tk_status);
|
||||
}
|
||||
if (dp->dl_retries--) {
|
||||
rpc_delay(task, 2*HZ);
|
||||
task->tk_status = 0;
|
||||
rpc_restart_call_prepare(task);
|
||||
return;
|
||||
case 1:
|
||||
break;
|
||||
case -1:
|
||||
/* Network partition? */
|
||||
nfsd4_mark_cb_down(clp, task->tk_status);
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
nfsd4_mark_cb_down(clp, task->tk_status);
|
||||
cb->cb_done = true;
|
||||
}
|
||||
|
||||
static void nfsd4_cb_recall_release(void *calldata)
|
||||
static void nfsd4_cb_release(void *calldata)
|
||||
{
|
||||
struct nfsd4_callback *cb = calldata;
|
||||
struct nfs4_client *clp = cb->cb_clp;
|
||||
struct nfs4_delegation *dp = container_of(cb, struct nfs4_delegation, dl_recall);
|
||||
|
||||
if (cb->cb_done) {
|
||||
spin_lock(&clp->cl_lock);
|
||||
list_del(&cb->cb_per_client);
|
||||
spin_unlock(&clp->cl_lock);
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
|
||||
cb->cb_ops->release(cb);
|
||||
}
|
||||
}
|
||||
|
||||
static const struct rpc_call_ops nfsd4_cb_recall_ops = {
|
||||
static const struct rpc_call_ops nfsd4_cb_ops = {
|
||||
.rpc_call_prepare = nfsd4_cb_prepare,
|
||||
.rpc_call_done = nfsd4_cb_recall_done,
|
||||
.rpc_release = nfsd4_cb_recall_release,
|
||||
.rpc_call_done = nfsd4_cb_done,
|
||||
.rpc_release = nfsd4_cb_release,
|
||||
};
|
||||
|
||||
int nfsd4_create_callback_queue(void)
|
||||
|
@ -937,16 +894,10 @@ void nfsd4_shutdown_callback(struct nfs4_client *clp)
|
|||
* instead, nfsd4_run_cb_null() will detect the killed
|
||||
* client, destroy the rpc client, and stop:
|
||||
*/
|
||||
do_probe_callback(clp);
|
||||
nfsd4_run_cb(&clp->cl_cb_null);
|
||||
flush_workqueue(callback_wq);
|
||||
}
|
||||
|
||||
static void nfsd4_release_cb(struct nfsd4_callback *cb)
|
||||
{
|
||||
if (cb->cb_ops->rpc_release)
|
||||
cb->cb_ops->rpc_release(cb);
|
||||
}
|
||||
|
||||
/* requires cl_lock: */
|
||||
static struct nfsd4_conn * __nfsd4_find_backchannel(struct nfs4_client *clp)
|
||||
{
|
||||
|
@ -1009,63 +960,49 @@ static void nfsd4_process_cb_update(struct nfsd4_callback *cb)
|
|||
}
|
||||
/* Yay, the callback channel's back! Restart any callbacks: */
|
||||
list_for_each_entry(cb, &clp->cl_callbacks, cb_per_client)
|
||||
run_nfsd4_cb(cb);
|
||||
queue_work(callback_wq, &cb->cb_work);
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_run_callback_rpc(struct nfsd4_callback *cb)
|
||||
nfsd4_run_cb_work(struct work_struct *work)
|
||||
{
|
||||
struct nfsd4_callback *cb =
|
||||
container_of(work, struct nfsd4_callback, cb_work);
|
||||
struct nfs4_client *clp = cb->cb_clp;
|
||||
struct rpc_clnt *clnt;
|
||||
|
||||
if (cb->cb_ops && cb->cb_ops->prepare)
|
||||
cb->cb_ops->prepare(cb);
|
||||
|
||||
if (clp->cl_flags & NFSD4_CLIENT_CB_FLAG_MASK)
|
||||
nfsd4_process_cb_update(cb);
|
||||
|
||||
clnt = clp->cl_cb_client;
|
||||
if (!clnt) {
|
||||
/* Callback channel broken, or client killed; give up: */
|
||||
nfsd4_release_cb(cb);
|
||||
if (cb->cb_ops && cb->cb_ops->release)
|
||||
cb->cb_ops->release(cb);
|
||||
return;
|
||||
}
|
||||
cb->cb_msg.rpc_cred = clp->cl_cb_cred;
|
||||
rpc_call_async(clnt, &cb->cb_msg, RPC_TASK_SOFT | RPC_TASK_SOFTCONN,
|
||||
cb->cb_ops, cb);
|
||||
cb->cb_ops ? &nfsd4_cb_ops : &nfsd4_cb_probe_ops, cb);
|
||||
}
|
||||
|
||||
void
|
||||
nfsd4_run_cb_null(struct work_struct *w)
|
||||
void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
|
||||
struct nfsd4_callback_ops *ops, enum nfsd4_cb_op op)
|
||||
{
|
||||
struct nfsd4_callback *cb = container_of(w, struct nfsd4_callback,
|
||||
cb_work);
|
||||
nfsd4_run_callback_rpc(cb);
|
||||
}
|
||||
|
||||
void
|
||||
nfsd4_run_cb_recall(struct work_struct *w)
|
||||
{
|
||||
struct nfsd4_callback *cb = container_of(w, struct nfsd4_callback,
|
||||
cb_work);
|
||||
|
||||
nfsd4_prepare_cb_recall(cb->cb_op);
|
||||
nfsd4_run_callback_rpc(cb);
|
||||
}
|
||||
|
||||
void nfsd4_cb_recall(struct nfs4_delegation *dp)
|
||||
{
|
||||
struct nfsd4_callback *cb = &dp->dl_recall;
|
||||
struct nfs4_client *clp = dp->dl_stid.sc_client;
|
||||
|
||||
dp->dl_retries = 1;
|
||||
cb->cb_op = dp;
|
||||
cb->cb_clp = clp;
|
||||
cb->cb_msg.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL];
|
||||
cb->cb_msg.rpc_proc = &nfs4_cb_procedures[op];
|
||||
cb->cb_msg.rpc_argp = cb;
|
||||
cb->cb_msg.rpc_resp = cb;
|
||||
|
||||
cb->cb_ops = &nfsd4_cb_recall_ops;
|
||||
|
||||
cb->cb_ops = ops;
|
||||
INIT_WORK(&cb->cb_work, nfsd4_run_cb_work);
|
||||
INIT_LIST_HEAD(&cb->cb_per_client);
|
||||
cb->cb_done = true;
|
||||
|
||||
run_nfsd4_cb(&dp->dl_recall);
|
||||
}
|
||||
|
||||
void nfsd4_run_cb(struct nfsd4_callback *cb)
|
||||
{
|
||||
queue_work(callback_wq, &cb->cb_work);
|
||||
}
|
||||
|
|
|
@ -215,7 +215,8 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
memset(&ent, 0, sizeof(ent));
|
||||
|
||||
/* Authentication name */
|
||||
if (qword_get(&buf, buf1, PAGE_SIZE) <= 0)
|
||||
len = qword_get(&buf, buf1, PAGE_SIZE);
|
||||
if (len <= 0 || len >= IDMAP_NAMESZ)
|
||||
goto out;
|
||||
memcpy(ent.authname, buf1, sizeof(ent.authname));
|
||||
|
||||
|
@ -245,12 +246,10 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
/* Name */
|
||||
error = -EINVAL;
|
||||
len = qword_get(&buf, buf1, PAGE_SIZE);
|
||||
if (len < 0)
|
||||
if (len < 0 || len >= IDMAP_NAMESZ)
|
||||
goto out;
|
||||
if (len == 0)
|
||||
set_bit(CACHE_NEGATIVE, &ent.h.flags);
|
||||
else if (len >= IDMAP_NAMESZ)
|
||||
goto out;
|
||||
else
|
||||
memcpy(ent.name, buf1, sizeof(ent.name));
|
||||
error = -ENOMEM;
|
||||
|
@ -259,15 +258,12 @@ idtoname_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
goto out;
|
||||
|
||||
cache_put(&res->h, cd);
|
||||
|
||||
error = 0;
|
||||
out:
|
||||
kfree(buf1);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
|
||||
static struct ent *
|
||||
idtoname_lookup(struct cache_detail *cd, struct ent *item)
|
||||
{
|
||||
|
@ -368,7 +364,7 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
{
|
||||
struct ent ent, *res;
|
||||
char *buf1;
|
||||
int error = -EINVAL;
|
||||
int len, error = -EINVAL;
|
||||
|
||||
if (buf[buflen - 1] != '\n')
|
||||
return (-EINVAL);
|
||||
|
@ -381,7 +377,8 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
memset(&ent, 0, sizeof(ent));
|
||||
|
||||
/* Authentication name */
|
||||
if (qword_get(&buf, buf1, PAGE_SIZE) <= 0)
|
||||
len = qword_get(&buf, buf1, PAGE_SIZE);
|
||||
if (len <= 0 || len >= IDMAP_NAMESZ)
|
||||
goto out;
|
||||
memcpy(ent.authname, buf1, sizeof(ent.authname));
|
||||
|
||||
|
@ -392,8 +389,8 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
IDMAP_TYPE_USER : IDMAP_TYPE_GROUP;
|
||||
|
||||
/* Name */
|
||||
error = qword_get(&buf, buf1, PAGE_SIZE);
|
||||
if (error <= 0 || error >= IDMAP_NAMESZ)
|
||||
len = qword_get(&buf, buf1, PAGE_SIZE);
|
||||
if (len <= 0 || len >= IDMAP_NAMESZ)
|
||||
goto out;
|
||||
memcpy(ent.name, buf1, sizeof(ent.name));
|
||||
|
||||
|
@ -421,7 +418,6 @@ nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
|
|||
error = 0;
|
||||
out:
|
||||
kfree(buf1);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
|
|
|
@ -1013,6 +1013,49 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
|
|||
return status;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_seek(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
|
||||
struct nfsd4_seek *seek)
|
||||
{
|
||||
int whence;
|
||||
__be32 status;
|
||||
struct file *file;
|
||||
|
||||
status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
|
||||
&seek->seek_stateid,
|
||||
RD_STATE, &file);
|
||||
if (status) {
|
||||
dprintk("NFSD: nfsd4_seek: couldn't process stateid!\n");
|
||||
return status;
|
||||
}
|
||||
|
||||
switch (seek->seek_whence) {
|
||||
case NFS4_CONTENT_DATA:
|
||||
whence = SEEK_DATA;
|
||||
break;
|
||||
case NFS4_CONTENT_HOLE:
|
||||
whence = SEEK_HOLE;
|
||||
break;
|
||||
default:
|
||||
status = nfserr_union_notsupp;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* Note: This call does change file->f_pos, but nothing in NFSD
|
||||
* should ever file->f_pos.
|
||||
*/
|
||||
seek->seek_pos = vfs_llseek(file, seek->seek_offset, whence);
|
||||
if (seek->seek_pos < 0)
|
||||
status = nfserrno(seek->seek_pos);
|
||||
else if (seek->seek_pos >= i_size_read(file_inode(file)))
|
||||
seek->seek_eof = true;
|
||||
|
||||
out:
|
||||
fput(file);
|
||||
return status;
|
||||
}
|
||||
|
||||
/* This routine never returns NFS_OK! If there are no other errors, it
|
||||
* will return NFSERR_SAME or NFSERR_NOT_SAME depending on whether the
|
||||
* attributes matched. VERIFY is implemented by mapping NFSERR_SAME
|
||||
|
@ -1881,6 +1924,12 @@ static struct nfsd4_operation nfsd4_ops[] = {
|
|||
.op_get_currentstateid = (stateid_getter)nfsd4_get_freestateid,
|
||||
.op_rsize_bop = (nfsd4op_rsize)nfsd4_only_status_rsize,
|
||||
},
|
||||
|
||||
/* NFSv4.2 operations */
|
||||
[OP_SEEK] = {
|
||||
.op_func = (nfsd4op_func)nfsd4_seek,
|
||||
.op_name = "OP_SEEK",
|
||||
},
|
||||
};
|
||||
|
||||
int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op)
|
||||
|
|
|
@ -58,7 +58,7 @@ struct nfsd4_client_tracking_ops {
|
|||
void (*create)(struct nfs4_client *);
|
||||
void (*remove)(struct nfs4_client *);
|
||||
int (*check)(struct nfs4_client *);
|
||||
void (*grace_done)(struct nfsd_net *, time_t);
|
||||
void (*grace_done)(struct nfsd_net *);
|
||||
};
|
||||
|
||||
/* Globals */
|
||||
|
@ -188,7 +188,7 @@ nfsd4_create_clid_dir(struct nfs4_client *clp)
|
|||
|
||||
status = mnt_want_write_file(nn->rec_file);
|
||||
if (status)
|
||||
return;
|
||||
goto out_creds;
|
||||
|
||||
dir = nn->rec_file->f_path.dentry;
|
||||
/* lock the parent */
|
||||
|
@ -228,6 +228,7 @@ out_unlock:
|
|||
user_recovery_dirname);
|
||||
}
|
||||
mnt_drop_write_file(nn->rec_file);
|
||||
out_creds:
|
||||
nfs4_reset_creds(original_cred);
|
||||
}
|
||||
|
||||
|
@ -392,7 +393,7 @@ purge_old(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
|
|||
}
|
||||
|
||||
static void
|
||||
nfsd4_recdir_purge_old(struct nfsd_net *nn, time_t boot_time)
|
||||
nfsd4_recdir_purge_old(struct nfsd_net *nn)
|
||||
{
|
||||
int status;
|
||||
|
||||
|
@ -479,6 +480,16 @@ nfsd4_init_recdir(struct net *net)
|
|||
return status;
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_shutdown_recdir(struct net *net)
|
||||
{
|
||||
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
|
||||
|
||||
if (!nn->rec_file)
|
||||
return;
|
||||
fput(nn->rec_file);
|
||||
nn->rec_file = NULL;
|
||||
}
|
||||
|
||||
static int
|
||||
nfs4_legacy_state_init(struct net *net)
|
||||
|
@ -512,10 +523,13 @@ nfsd4_load_reboot_recovery_data(struct net *net)
|
|||
int status;
|
||||
|
||||
status = nfsd4_init_recdir(net);
|
||||
if (!status)
|
||||
status = nfsd4_recdir_load(net);
|
||||
if (status)
|
||||
printk(KERN_ERR "NFSD: Failure reading reboot recovery data\n");
|
||||
return status;
|
||||
|
||||
status = nfsd4_recdir_load(net);
|
||||
if (status)
|
||||
nfsd4_shutdown_recdir(net);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
|
@ -545,22 +559,13 @@ err:
|
|||
return status;
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_shutdown_recdir(struct nfsd_net *nn)
|
||||
{
|
||||
if (!nn->rec_file)
|
||||
return;
|
||||
fput(nn->rec_file);
|
||||
nn->rec_file = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_legacy_tracking_exit(struct net *net)
|
||||
{
|
||||
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
|
||||
|
||||
nfs4_release_reclaim(nn);
|
||||
nfsd4_shutdown_recdir(nn);
|
||||
nfsd4_shutdown_recdir(net);
|
||||
nfs4_legacy_state_shutdown(net);
|
||||
}
|
||||
|
||||
|
@ -1016,7 +1021,7 @@ nfsd4_cld_check(struct nfs4_client *clp)
|
|||
}
|
||||
|
||||
static void
|
||||
nfsd4_cld_grace_done(struct nfsd_net *nn, time_t boot_time)
|
||||
nfsd4_cld_grace_done(struct nfsd_net *nn)
|
||||
{
|
||||
int ret;
|
||||
struct cld_upcall *cup;
|
||||
|
@ -1029,7 +1034,7 @@ nfsd4_cld_grace_done(struct nfsd_net *nn, time_t boot_time)
|
|||
}
|
||||
|
||||
cup->cu_msg.cm_cmd = Cld_GraceDone;
|
||||
cup->cu_msg.cm_u.cm_gracetime = (int64_t)boot_time;
|
||||
cup->cu_msg.cm_u.cm_gracetime = (int64_t)nn->boot_time;
|
||||
ret = cld_pipe_upcall(cn->cn_pipe, &cup->cu_msg);
|
||||
if (!ret)
|
||||
ret = cup->cu_msg.cm_status;
|
||||
|
@ -1062,6 +1067,8 @@ MODULE_PARM_DESC(cltrack_legacy_disable,
|
|||
|
||||
#define LEGACY_TOPDIR_ENV_PREFIX "NFSDCLTRACK_LEGACY_TOPDIR="
|
||||
#define LEGACY_RECDIR_ENV_PREFIX "NFSDCLTRACK_LEGACY_RECDIR="
|
||||
#define HAS_SESSION_ENV_PREFIX "NFSDCLTRACK_CLIENT_HAS_SESSION="
|
||||
#define GRACE_START_ENV_PREFIX "NFSDCLTRACK_GRACE_START="
|
||||
|
||||
static char *
|
||||
nfsd4_cltrack_legacy_topdir(void)
|
||||
|
@ -1126,10 +1133,60 @@ nfsd4_cltrack_legacy_recdir(const struct xdr_netobj *name)
|
|||
return result;
|
||||
}
|
||||
|
||||
static int
|
||||
nfsd4_umh_cltrack_upcall(char *cmd, char *arg, char *legacy)
|
||||
static char *
|
||||
nfsd4_cltrack_client_has_session(struct nfs4_client *clp)
|
||||
{
|
||||
char *envp[2];
|
||||
int copied;
|
||||
size_t len;
|
||||
char *result;
|
||||
|
||||
/* prefix + Y/N character + terminating NULL */
|
||||
len = strlen(HAS_SESSION_ENV_PREFIX) + 1 + 1;
|
||||
|
||||
result = kmalloc(len, GFP_KERNEL);
|
||||
if (!result)
|
||||
return result;
|
||||
|
||||
copied = snprintf(result, len, HAS_SESSION_ENV_PREFIX "%c",
|
||||
clp->cl_minorversion ? 'Y' : 'N');
|
||||
if (copied >= len) {
|
||||
/* just return nothing if output was truncated */
|
||||
kfree(result);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static char *
|
||||
nfsd4_cltrack_grace_start(time_t grace_start)
|
||||
{
|
||||
int copied;
|
||||
size_t len;
|
||||
char *result;
|
||||
|
||||
/* prefix + max width of int64_t string + terminating NULL */
|
||||
len = strlen(GRACE_START_ENV_PREFIX) + 22 + 1;
|
||||
|
||||
result = kmalloc(len, GFP_KERNEL);
|
||||
if (!result)
|
||||
return result;
|
||||
|
||||
copied = snprintf(result, len, GRACE_START_ENV_PREFIX "%ld",
|
||||
grace_start);
|
||||
if (copied >= len) {
|
||||
/* just return nothing if output was truncated */
|
||||
kfree(result);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static int
|
||||
nfsd4_umh_cltrack_upcall(char *cmd, char *arg, char *env0, char *env1)
|
||||
{
|
||||
char *envp[3];
|
||||
char *argv[4];
|
||||
int ret;
|
||||
|
||||
|
@ -1140,10 +1197,12 @@ nfsd4_umh_cltrack_upcall(char *cmd, char *arg, char *legacy)
|
|||
|
||||
dprintk("%s: cmd: %s\n", __func__, cmd);
|
||||
dprintk("%s: arg: %s\n", __func__, arg ? arg : "(null)");
|
||||
dprintk("%s: legacy: %s\n", __func__, legacy ? legacy : "(null)");
|
||||
dprintk("%s: env0: %s\n", __func__, env0 ? env0 : "(null)");
|
||||
dprintk("%s: env1: %s\n", __func__, env1 ? env1 : "(null)");
|
||||
|
||||
envp[0] = legacy;
|
||||
envp[1] = NULL;
|
||||
envp[0] = env0;
|
||||
envp[1] = env1;
|
||||
envp[2] = NULL;
|
||||
|
||||
argv[0] = (char *)cltrack_prog;
|
||||
argv[1] = cmd;
|
||||
|
@ -1187,28 +1246,78 @@ bin_to_hex_dup(const unsigned char *src, int srclen)
|
|||
}
|
||||
|
||||
static int
|
||||
nfsd4_umh_cltrack_init(struct net __attribute__((unused)) *net)
|
||||
nfsd4_umh_cltrack_init(struct net *net)
|
||||
{
|
||||
int ret;
|
||||
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
|
||||
char *grace_start = nfsd4_cltrack_grace_start(nn->boot_time);
|
||||
|
||||
/* XXX: The usermode helper s not working in container yet. */
|
||||
if (net != &init_net) {
|
||||
WARN(1, KERN_ERR "NFSD: attempt to initialize umh client "
|
||||
"tracking in a container!\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
return nfsd4_umh_cltrack_upcall("init", NULL, NULL);
|
||||
|
||||
ret = nfsd4_umh_cltrack_upcall("init", NULL, grace_start, NULL);
|
||||
kfree(grace_start);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_cltrack_upcall_lock(struct nfs4_client *clp)
|
||||
{
|
||||
wait_on_bit_lock(&clp->cl_flags, NFSD4_CLIENT_UPCALL_LOCK,
|
||||
TASK_UNINTERRUPTIBLE);
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_cltrack_upcall_unlock(struct nfs4_client *clp)
|
||||
{
|
||||
smp_mb__before_atomic();
|
||||
clear_bit(NFSD4_CLIENT_UPCALL_LOCK, &clp->cl_flags);
|
||||
smp_mb__after_atomic();
|
||||
wake_up_bit(&clp->cl_flags, NFSD4_CLIENT_UPCALL_LOCK);
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_umh_cltrack_create(struct nfs4_client *clp)
|
||||
{
|
||||
char *hexid;
|
||||
char *hexid, *has_session, *grace_start;
|
||||
struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
|
||||
|
||||
/*
|
||||
* With v4.0 clients, there's little difference in outcome between a
|
||||
* create and check operation, and we can end up calling into this
|
||||
* function multiple times per client (once for each openowner). So,
|
||||
* for v4.0 clients skip upcalling once the client has been recorded
|
||||
* on stable storage.
|
||||
*
|
||||
* For v4.1+ clients, the outcome of the two operations is different,
|
||||
* so we must ensure that we upcall for the create operation. v4.1+
|
||||
* clients call this on RECLAIM_COMPLETE though, so we should only end
|
||||
* up doing a single create upcall per client.
|
||||
*/
|
||||
if (clp->cl_minorversion == 0 &&
|
||||
test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
|
||||
return;
|
||||
|
||||
hexid = bin_to_hex_dup(clp->cl_name.data, clp->cl_name.len);
|
||||
if (!hexid) {
|
||||
dprintk("%s: can't allocate memory for upcall!\n", __func__);
|
||||
return;
|
||||
}
|
||||
nfsd4_umh_cltrack_upcall("create", hexid, NULL);
|
||||
|
||||
has_session = nfsd4_cltrack_client_has_session(clp);
|
||||
grace_start = nfsd4_cltrack_grace_start(nn->boot_time);
|
||||
|
||||
nfsd4_cltrack_upcall_lock(clp);
|
||||
if (!nfsd4_umh_cltrack_upcall("create", hexid, has_session, grace_start))
|
||||
set_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags);
|
||||
nfsd4_cltrack_upcall_unlock(clp);
|
||||
|
||||
kfree(has_session);
|
||||
kfree(grace_start);
|
||||
kfree(hexid);
|
||||
}
|
||||
|
||||
|
@ -1217,12 +1326,21 @@ nfsd4_umh_cltrack_remove(struct nfs4_client *clp)
|
|||
{
|
||||
char *hexid;
|
||||
|
||||
if (!test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
|
||||
return;
|
||||
|
||||
hexid = bin_to_hex_dup(clp->cl_name.data, clp->cl_name.len);
|
||||
if (!hexid) {
|
||||
dprintk("%s: can't allocate memory for upcall!\n", __func__);
|
||||
return;
|
||||
}
|
||||
nfsd4_umh_cltrack_upcall("remove", hexid, NULL);
|
||||
|
||||
nfsd4_cltrack_upcall_lock(clp);
|
||||
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags) &&
|
||||
nfsd4_umh_cltrack_upcall("remove", hexid, NULL, NULL) == 0)
|
||||
clear_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags);
|
||||
nfsd4_cltrack_upcall_unlock(clp);
|
||||
|
||||
kfree(hexid);
|
||||
}
|
||||
|
||||
|
@ -1230,30 +1348,45 @@ static int
|
|||
nfsd4_umh_cltrack_check(struct nfs4_client *clp)
|
||||
{
|
||||
int ret;
|
||||
char *hexid, *legacy;
|
||||
char *hexid, *has_session, *legacy;
|
||||
|
||||
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags))
|
||||
return 0;
|
||||
|
||||
hexid = bin_to_hex_dup(clp->cl_name.data, clp->cl_name.len);
|
||||
if (!hexid) {
|
||||
dprintk("%s: can't allocate memory for upcall!\n", __func__);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
has_session = nfsd4_cltrack_client_has_session(clp);
|
||||
legacy = nfsd4_cltrack_legacy_recdir(&clp->cl_name);
|
||||
ret = nfsd4_umh_cltrack_upcall("check", hexid, legacy);
|
||||
|
||||
nfsd4_cltrack_upcall_lock(clp);
|
||||
if (test_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags)) {
|
||||
ret = 0;
|
||||
} else {
|
||||
ret = nfsd4_umh_cltrack_upcall("check", hexid, has_session, legacy);
|
||||
if (ret == 0)
|
||||
set_bit(NFSD4_CLIENT_STABLE, &clp->cl_flags);
|
||||
}
|
||||
nfsd4_cltrack_upcall_unlock(clp);
|
||||
kfree(has_session);
|
||||
kfree(legacy);
|
||||
kfree(hexid);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd4_umh_cltrack_grace_done(struct nfsd_net __attribute__((unused)) *nn,
|
||||
time_t boot_time)
|
||||
nfsd4_umh_cltrack_grace_done(struct nfsd_net *nn)
|
||||
{
|
||||
char *legacy;
|
||||
char timestr[22]; /* FIXME: better way to determine max size? */
|
||||
|
||||
sprintf(timestr, "%ld", boot_time);
|
||||
sprintf(timestr, "%ld", nn->boot_time);
|
||||
legacy = nfsd4_cltrack_legacy_topdir();
|
||||
nfsd4_umh_cltrack_upcall("gracedone", timestr, legacy);
|
||||
nfsd4_umh_cltrack_upcall("gracedone", timestr, legacy, NULL);
|
||||
kfree(legacy);
|
||||
}
|
||||
|
||||
|
@ -1356,10 +1489,10 @@ nfsd4_client_record_check(struct nfs4_client *clp)
|
|||
}
|
||||
|
||||
void
|
||||
nfsd4_record_grace_done(struct nfsd_net *nn, time_t boot_time)
|
||||
nfsd4_record_grace_done(struct nfsd_net *nn)
|
||||
{
|
||||
if (nn->client_tracking_ops)
|
||||
nn->client_tracking_ops->grace_done(nn, boot_time);
|
||||
nn->client_tracking_ops->grace_done(nn);
|
||||
}
|
||||
|
||||
static int
|
||||
|
|
|
@ -96,6 +96,8 @@ static struct kmem_cache *deleg_slab;
|
|||
|
||||
static void free_session(struct nfsd4_session *);
|
||||
|
||||
static struct nfsd4_callback_ops nfsd4_cb_recall_ops;
|
||||
|
||||
static bool is_session_dead(struct nfsd4_session *ses)
|
||||
{
|
||||
return ses->se_flags & NFS4_SESSION_DEAD;
|
||||
|
@ -645,7 +647,9 @@ alloc_init_deleg(struct nfs4_client *clp, struct svc_fh *current_fh)
|
|||
INIT_LIST_HEAD(&dp->dl_perclnt);
|
||||
INIT_LIST_HEAD(&dp->dl_recall_lru);
|
||||
dp->dl_type = NFS4_OPEN_DELEGATE_READ;
|
||||
INIT_WORK(&dp->dl_recall.cb_work, nfsd4_run_cb_recall);
|
||||
dp->dl_retries = 1;
|
||||
nfsd4_init_cb(&dp->dl_recall, dp->dl_stid.sc_client,
|
||||
&nfsd4_cb_recall_ops, NFSPROC4_CLNT_CB_RECALL);
|
||||
return dp;
|
||||
out_dec:
|
||||
atomic_long_dec(&num_delegations);
|
||||
|
@ -673,15 +677,20 @@ nfs4_put_stid(struct nfs4_stid *s)
|
|||
|
||||
static void nfs4_put_deleg_lease(struct nfs4_file *fp)
|
||||
{
|
||||
lockdep_assert_held(&state_lock);
|
||||
struct file *filp = NULL;
|
||||
struct file_lock *fl;
|
||||
|
||||
if (!fp->fi_lease)
|
||||
return;
|
||||
if (atomic_dec_and_test(&fp->fi_delegees)) {
|
||||
vfs_setlease(fp->fi_deleg_file, F_UNLCK, &fp->fi_lease);
|
||||
spin_lock(&fp->fi_lock);
|
||||
if (fp->fi_lease && atomic_dec_and_test(&fp->fi_delegees)) {
|
||||
swap(filp, fp->fi_deleg_file);
|
||||
fl = fp->fi_lease;
|
||||
fp->fi_lease = NULL;
|
||||
fput(fp->fi_deleg_file);
|
||||
fp->fi_deleg_file = NULL;
|
||||
}
|
||||
spin_unlock(&fp->fi_lock);
|
||||
|
||||
if (filp) {
|
||||
vfs_setlease(filp, F_UNLCK, &fl);
|
||||
fput(filp);
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -717,8 +726,6 @@ unhash_delegation_locked(struct nfs4_delegation *dp)
|
|||
list_del_init(&dp->dl_recall_lru);
|
||||
list_del_init(&dp->dl_perfile);
|
||||
spin_unlock(&fp->fi_lock);
|
||||
if (fp)
|
||||
nfs4_put_deleg_lease(fp);
|
||||
}
|
||||
|
||||
static void destroy_delegation(struct nfs4_delegation *dp)
|
||||
|
@ -726,6 +733,7 @@ static void destroy_delegation(struct nfs4_delegation *dp)
|
|||
spin_lock(&state_lock);
|
||||
unhash_delegation_locked(dp);
|
||||
spin_unlock(&state_lock);
|
||||
nfs4_put_deleg_lease(dp->dl_stid.sc_file);
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
}
|
||||
|
||||
|
@ -735,6 +743,8 @@ static void revoke_delegation(struct nfs4_delegation *dp)
|
|||
|
||||
WARN_ON(!list_empty(&dp->dl_recall_lru));
|
||||
|
||||
nfs4_put_deleg_lease(dp->dl_stid.sc_file);
|
||||
|
||||
if (clp->cl_minorversion == 0)
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
else {
|
||||
|
@ -1635,6 +1645,7 @@ __destroy_client(struct nfs4_client *clp)
|
|||
while (!list_empty(&reaplist)) {
|
||||
dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
|
||||
list_del_init(&dp->dl_recall_lru);
|
||||
nfs4_put_deleg_lease(dp->dl_stid.sc_file);
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
}
|
||||
while (!list_empty(&clp->cl_revoked)) {
|
||||
|
@ -1862,7 +1873,7 @@ static struct nfs4_client *create_client(struct xdr_netobj name,
|
|||
free_client(clp);
|
||||
return NULL;
|
||||
}
|
||||
INIT_WORK(&clp->cl_cb_null.cb_work, nfsd4_run_cb_null);
|
||||
nfsd4_init_cb(&clp->cl_cb_null, clp, NULL, NFSPROC4_CLNT_CB_NULL);
|
||||
clp->cl_time = get_seconds();
|
||||
clear_bit(0, &clp->cl_cb_slot_busy);
|
||||
copy_verf(clp, verf);
|
||||
|
@ -3349,8 +3360,12 @@ nfs4_share_conflict(struct svc_fh *current_fh, unsigned int deny_type)
|
|||
return ret;
|
||||
}
|
||||
|
||||
void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp)
|
||||
#define cb_to_delegation(cb) \
|
||||
container_of(cb, struct nfs4_delegation, dl_recall)
|
||||
|
||||
static void nfsd4_cb_recall_prepare(struct nfsd4_callback *cb)
|
||||
{
|
||||
struct nfs4_delegation *dp = cb_to_delegation(cb);
|
||||
struct nfsd_net *nn = net_generic(dp->dl_stid.sc_client->net,
|
||||
nfsd_net_id);
|
||||
|
||||
|
@ -3371,6 +3386,43 @@ void nfsd4_prepare_cb_recall(struct nfs4_delegation *dp)
|
|||
spin_unlock(&state_lock);
|
||||
}
|
||||
|
||||
static int nfsd4_cb_recall_done(struct nfsd4_callback *cb,
|
||||
struct rpc_task *task)
|
||||
{
|
||||
struct nfs4_delegation *dp = cb_to_delegation(cb);
|
||||
|
||||
switch (task->tk_status) {
|
||||
case 0:
|
||||
return 1;
|
||||
case -EBADHANDLE:
|
||||
case -NFS4ERR_BAD_STATEID:
|
||||
/*
|
||||
* Race: client probably got cb_recall before open reply
|
||||
* granting delegation.
|
||||
*/
|
||||
if (dp->dl_retries--) {
|
||||
rpc_delay(task, 2 * HZ);
|
||||
return 0;
|
||||
}
|
||||
/*FALLTHRU*/
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
static void nfsd4_cb_recall_release(struct nfsd4_callback *cb)
|
||||
{
|
||||
struct nfs4_delegation *dp = cb_to_delegation(cb);
|
||||
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
}
|
||||
|
||||
static struct nfsd4_callback_ops nfsd4_cb_recall_ops = {
|
||||
.prepare = nfsd4_cb_recall_prepare,
|
||||
.done = nfsd4_cb_recall_done,
|
||||
.release = nfsd4_cb_recall_release,
|
||||
};
|
||||
|
||||
static void nfsd_break_one_deleg(struct nfs4_delegation *dp)
|
||||
{
|
||||
/*
|
||||
|
@ -3381,7 +3433,7 @@ static void nfsd_break_one_deleg(struct nfs4_delegation *dp)
|
|||
* it's safe to take a reference.
|
||||
*/
|
||||
atomic_inc(&dp->dl_stid.sc_count);
|
||||
nfsd4_cb_recall(dp);
|
||||
nfsd4_run_cb(&dp->dl_recall);
|
||||
}
|
||||
|
||||
/* Called from break_lease() with i_lock held. */
|
||||
|
@ -3759,7 +3811,6 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_file *fp, int flag)
|
|||
fl = locks_alloc_lock();
|
||||
if (!fl)
|
||||
return NULL;
|
||||
locks_init_lock(fl);
|
||||
fl->fl_lmops = &nfsd_lease_mng_ops;
|
||||
fl->fl_flags = FL_DELEG;
|
||||
fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK;
|
||||
|
@ -4107,7 +4158,7 @@ out:
|
|||
return status;
|
||||
}
|
||||
|
||||
static void
|
||||
void
|
||||
nfsd4_end_grace(struct nfsd_net *nn)
|
||||
{
|
||||
/* do nothing if grace period already ended */
|
||||
|
@ -4116,14 +4167,28 @@ nfsd4_end_grace(struct nfsd_net *nn)
|
|||
|
||||
dprintk("NFSD: end of grace period\n");
|
||||
nn->grace_ended = true;
|
||||
nfsd4_record_grace_done(nn, nn->boot_time);
|
||||
/*
|
||||
* If the server goes down again right now, an NFSv4
|
||||
* client will still be allowed to reclaim after it comes back up,
|
||||
* even if it hasn't yet had a chance to reclaim state this time.
|
||||
*
|
||||
*/
|
||||
nfsd4_record_grace_done(nn);
|
||||
/*
|
||||
* At this point, NFSv4 clients can still reclaim. But if the
|
||||
* server crashes, any that have not yet reclaimed will be out
|
||||
* of luck on the next boot.
|
||||
*
|
||||
* (NFSv4.1+ clients are considered to have reclaimed once they
|
||||
* call RECLAIM_COMPLETE. NFSv4.0 clients are considered to
|
||||
* have reclaimed after their first OPEN.)
|
||||
*/
|
||||
locks_end_grace(&nn->nfsd4_manager);
|
||||
/*
|
||||
* Now that every NFSv4 client has had the chance to recover and
|
||||
* to see the (possibly new, possibly shorter) lease time, we
|
||||
* can safely set the next grace time to the current lease time:
|
||||
* At this point, and once lockd and/or any other containers
|
||||
* exit their grace period, further reclaims will fail and
|
||||
* regular locking can resume.
|
||||
*/
|
||||
nn->nfsd4_grace = nn->nfsd4_lease;
|
||||
}
|
||||
|
||||
static time_t
|
||||
|
@ -5210,7 +5275,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
|
|||
}
|
||||
|
||||
fp = lock_stp->st_stid.sc_file;
|
||||
locks_init_lock(file_lock);
|
||||
switch (lock->lk_type) {
|
||||
case NFS4_READ_LT:
|
||||
case NFS4_READW_LT:
|
||||
|
@ -5354,7 +5418,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
|
|||
status = nfserr_jukebox;
|
||||
goto out;
|
||||
}
|
||||
locks_init_lock(file_lock);
|
||||
|
||||
switch (lockt->lt_type) {
|
||||
case NFS4_READ_LT:
|
||||
case NFS4_READW_LT:
|
||||
|
@ -5432,7 +5496,7 @@ nfsd4_locku(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
|
|||
status = nfserr_jukebox;
|
||||
goto fput;
|
||||
}
|
||||
locks_init_lock(file_lock);
|
||||
|
||||
file_lock->fl_type = F_UNLCK;
|
||||
file_lock->fl_owner = (fl_owner_t)lockowner(stp->st_stateowner);
|
||||
file_lock->fl_pid = current->tgid;
|
||||
|
@ -5645,6 +5709,9 @@ nfs4_check_open_reclaim(clientid_t *clid,
|
|||
if (status)
|
||||
return nfserr_reclaim_bad;
|
||||
|
||||
if (test_bit(NFSD4_CLIENT_RECLAIM_COMPLETE, &cstate->clp->cl_flags))
|
||||
return nfserr_no_grace;
|
||||
|
||||
if (nfsd4_client_record_check(cstate->clp))
|
||||
return nfserr_reclaim_bad;
|
||||
|
||||
|
@ -6342,10 +6409,10 @@ nfs4_state_start_net(struct net *net)
|
|||
ret = nfs4_state_create_net(net);
|
||||
if (ret)
|
||||
return ret;
|
||||
nfsd4_client_tracking_init(net);
|
||||
nn->boot_time = get_seconds();
|
||||
locks_start_grace(net, &nn->nfsd4_manager);
|
||||
nn->grace_ended = false;
|
||||
locks_start_grace(net, &nn->nfsd4_manager);
|
||||
nfsd4_client_tracking_init(net);
|
||||
printk(KERN_INFO "NFSD: starting %ld-second grace period (net %p)\n",
|
||||
nn->nfsd4_grace, net);
|
||||
queue_delayed_work(laundry_wq, &nn->laundromat_work, nn->nfsd4_grace * HZ);
|
||||
|
@ -6402,6 +6469,7 @@ nfs4_state_shutdown_net(struct net *net)
|
|||
list_for_each_safe(pos, next, &reaplist) {
|
||||
dp = list_entry (pos, struct nfs4_delegation, dl_recall_lru);
|
||||
list_del_init(&dp->dl_recall_lru);
|
||||
nfs4_put_deleg_lease(dp->dl_stid.sc_file);
|
||||
nfs4_put_stid(&dp->dl_stid);
|
||||
}
|
||||
|
||||
|
|
|
@ -31,13 +31,6 @@
|
|||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* TODO: Neil Brown made the following observation: We currently
|
||||
* initially reserve NFSD_BUFSIZE space on the transmit queue and
|
||||
* never release any of that until the request is complete.
|
||||
* It would be good to calculate a new maximum response size while
|
||||
* decoding the COMPOUND, and call svc_reserve with this number
|
||||
* at the end of nfs4svc_decode_compoundargs.
|
||||
*/
|
||||
|
||||
#include <linux/slab.h>
|
||||
|
@ -1520,6 +1513,22 @@ static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, str
|
|||
DECODE_TAIL;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_decode_seek(struct nfsd4_compoundargs *argp, struct nfsd4_seek *seek)
|
||||
{
|
||||
DECODE_HEAD;
|
||||
|
||||
status = nfsd4_decode_stateid(argp, &seek->seek_stateid);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
READ_BUF(8 + 4);
|
||||
p = xdr_decode_hyper(p, &seek->seek_offset);
|
||||
seek->seek_whence = be32_to_cpup(p);
|
||||
|
||||
DECODE_TAIL;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_decode_noop(struct nfsd4_compoundargs *argp, void *p)
|
||||
{
|
||||
|
@ -1593,6 +1602,20 @@ static nfsd4_dec nfsd4_dec_ops[] = {
|
|||
[OP_WANT_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_DESTROY_CLIENTID] = (nfsd4_dec)nfsd4_decode_destroy_clientid,
|
||||
[OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete,
|
||||
|
||||
/* new operations for NFSv4.2 */
|
||||
[OP_ALLOCATE] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_COPY] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_COPY_NOTIFY] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_DEALLOCATE] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_IO_ADVISE] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_LAYOUTERROR] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_LAYOUTSTATS] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_OFFLOAD_CANCEL] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_OFFLOAD_STATUS] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_READ_PLUS] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
[OP_SEEK] = (nfsd4_dec)nfsd4_decode_seek,
|
||||
[OP_WRITE_SAME] = (nfsd4_dec)nfsd4_decode_notsupp,
|
||||
};
|
||||
|
||||
static inline bool
|
||||
|
@ -1670,6 +1693,14 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
|
|||
readbytes += nfsd4_max_reply(argp->rqstp, op);
|
||||
} else
|
||||
max_reply += nfsd4_max_reply(argp->rqstp, op);
|
||||
/*
|
||||
* OP_LOCK may return a conflicting lock. (Special case
|
||||
* because it will just skip encoding this if it runs
|
||||
* out of xdr buffer space, and it is the only operation
|
||||
* that behaves this way.)
|
||||
*/
|
||||
if (op->opnum == OP_LOCK)
|
||||
max_reply += NFS4_OPAQUE_LIMIT;
|
||||
|
||||
if (op->status) {
|
||||
argp->opcnt = i+1;
|
||||
|
@ -3750,6 +3781,22 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, __be32 nfserr,
|
|||
return nfserr;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr,
|
||||
struct nfsd4_seek *seek)
|
||||
{
|
||||
__be32 *p;
|
||||
|
||||
if (nfserr)
|
||||
return nfserr;
|
||||
|
||||
p = xdr_reserve_space(&resp->xdr, 4 + 8);
|
||||
*p++ = cpu_to_be32(seek->seek_eof);
|
||||
p = xdr_encode_hyper(p, seek->seek_pos);
|
||||
|
||||
return nfserr;
|
||||
}
|
||||
|
||||
static __be32
|
||||
nfsd4_encode_noop(struct nfsd4_compoundres *resp, __be32 nfserr, void *p)
|
||||
{
|
||||
|
@ -3822,6 +3869,20 @@ static nfsd4_enc nfsd4_enc_ops[] = {
|
|||
[OP_WANT_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_DESTROY_CLIENTID] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_RECLAIM_COMPLETE] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
|
||||
/* NFSv4.2 operations */
|
||||
[OP_ALLOCATE] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_COPY] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_COPY_NOTIFY] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_DEALLOCATE] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_IO_ADVISE] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_LAYOUTERROR] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_LAYOUTSTATS] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_OFFLOAD_CANCEL] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_OFFLOAD_STATUS] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_READ_PLUS] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
[OP_SEEK] = (nfsd4_enc)nfsd4_encode_seek,
|
||||
[OP_WRITE_SAME] = (nfsd4_enc)nfsd4_encode_noop,
|
||||
};
|
||||
|
||||
/*
|
||||
|
|
|
@ -27,8 +27,12 @@
|
|||
*/
|
||||
#define TARGET_BUCKET_SIZE 64
|
||||
|
||||
static struct hlist_head * cache_hash;
|
||||
static struct list_head lru_head;
|
||||
struct nfsd_drc_bucket {
|
||||
struct list_head lru_head;
|
||||
spinlock_t cache_lock;
|
||||
};
|
||||
|
||||
static struct nfsd_drc_bucket *drc_hashtbl;
|
||||
static struct kmem_cache *drc_slab;
|
||||
|
||||
/* max number of entries allowed in the cache */
|
||||
|
@ -36,6 +40,7 @@ static unsigned int max_drc_entries;
|
|||
|
||||
/* number of significant bits in the hash value */
|
||||
static unsigned int maskbits;
|
||||
static unsigned int drc_hashsize;
|
||||
|
||||
/*
|
||||
* Stats and other tracking of on the duplicate reply cache. All of these and
|
||||
|
@ -43,7 +48,7 @@ static unsigned int maskbits;
|
|||
*/
|
||||
|
||||
/* total number of entries */
|
||||
static unsigned int num_drc_entries;
|
||||
static atomic_t num_drc_entries;
|
||||
|
||||
/* cache misses due only to checksum comparison failures */
|
||||
static unsigned int payload_misses;
|
||||
|
@ -75,7 +80,6 @@ static struct shrinker nfsd_reply_cache_shrinker = {
|
|||
* A cache entry is "single use" if c_state == RC_INPROG
|
||||
* Otherwise, it when accessing _prev or _next, the lock must be held.
|
||||
*/
|
||||
static DEFINE_SPINLOCK(cache_lock);
|
||||
static DECLARE_DELAYED_WORK(cache_cleaner, cache_cleaner_func);
|
||||
|
||||
/*
|
||||
|
@ -116,6 +120,12 @@ nfsd_hashsize(unsigned int limit)
|
|||
return roundup_pow_of_two(limit / TARGET_BUCKET_SIZE);
|
||||
}
|
||||
|
||||
static u32
|
||||
nfsd_cache_hash(__be32 xid)
|
||||
{
|
||||
return hash_32(be32_to_cpu(xid), maskbits);
|
||||
}
|
||||
|
||||
static struct svc_cacherep *
|
||||
nfsd_reply_cache_alloc(void)
|
||||
{
|
||||
|
@ -126,7 +136,6 @@ nfsd_reply_cache_alloc(void)
|
|||
rp->c_state = RC_UNUSED;
|
||||
rp->c_type = RC_NOCACHE;
|
||||
INIT_LIST_HEAD(&rp->c_lru);
|
||||
INIT_HLIST_NODE(&rp->c_hash);
|
||||
}
|
||||
return rp;
|
||||
}
|
||||
|
@ -138,29 +147,27 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp)
|
|||
drc_mem_usage -= rp->c_replvec.iov_len;
|
||||
kfree(rp->c_replvec.iov_base);
|
||||
}
|
||||
if (!hlist_unhashed(&rp->c_hash))
|
||||
hlist_del(&rp->c_hash);
|
||||
list_del(&rp->c_lru);
|
||||
--num_drc_entries;
|
||||
atomic_dec(&num_drc_entries);
|
||||
drc_mem_usage -= sizeof(*rp);
|
||||
kmem_cache_free(drc_slab, rp);
|
||||
}
|
||||
|
||||
static void
|
||||
nfsd_reply_cache_free(struct svc_cacherep *rp)
|
||||
nfsd_reply_cache_free(struct nfsd_drc_bucket *b, struct svc_cacherep *rp)
|
||||
{
|
||||
spin_lock(&cache_lock);
|
||||
spin_lock(&b->cache_lock);
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
spin_unlock(&cache_lock);
|
||||
spin_unlock(&b->cache_lock);
|
||||
}
|
||||
|
||||
int nfsd_reply_cache_init(void)
|
||||
{
|
||||
unsigned int hashsize;
|
||||
unsigned int i;
|
||||
|
||||
INIT_LIST_HEAD(&lru_head);
|
||||
max_drc_entries = nfsd_cache_size_limit();
|
||||
num_drc_entries = 0;
|
||||
atomic_set(&num_drc_entries, 0);
|
||||
hashsize = nfsd_hashsize(max_drc_entries);
|
||||
maskbits = ilog2(hashsize);
|
||||
|
||||
|
@ -170,9 +177,14 @@ int nfsd_reply_cache_init(void)
|
|||
if (!drc_slab)
|
||||
goto out_nomem;
|
||||
|
||||
cache_hash = kcalloc(hashsize, sizeof(struct hlist_head), GFP_KERNEL);
|
||||
if (!cache_hash)
|
||||
drc_hashtbl = kcalloc(hashsize, sizeof(*drc_hashtbl), GFP_KERNEL);
|
||||
if (!drc_hashtbl)
|
||||
goto out_nomem;
|
||||
for (i = 0; i < hashsize; i++) {
|
||||
INIT_LIST_HEAD(&drc_hashtbl[i].lru_head);
|
||||
spin_lock_init(&drc_hashtbl[i].cache_lock);
|
||||
}
|
||||
drc_hashsize = hashsize;
|
||||
|
||||
return 0;
|
||||
out_nomem:
|
||||
|
@ -184,17 +196,22 @@ out_nomem:
|
|||
void nfsd_reply_cache_shutdown(void)
|
||||
{
|
||||
struct svc_cacherep *rp;
|
||||
unsigned int i;
|
||||
|
||||
unregister_shrinker(&nfsd_reply_cache_shrinker);
|
||||
cancel_delayed_work_sync(&cache_cleaner);
|
||||
|
||||
while (!list_empty(&lru_head)) {
|
||||
rp = list_entry(lru_head.next, struct svc_cacherep, c_lru);
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
for (i = 0; i < drc_hashsize; i++) {
|
||||
struct list_head *head = &drc_hashtbl[i].lru_head;
|
||||
while (!list_empty(head)) {
|
||||
rp = list_first_entry(head, struct svc_cacherep, c_lru);
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
}
|
||||
}
|
||||
|
||||
kfree (cache_hash);
|
||||
cache_hash = NULL;
|
||||
kfree (drc_hashtbl);
|
||||
drc_hashtbl = NULL;
|
||||
drc_hashsize = 0;
|
||||
|
||||
if (drc_slab) {
|
||||
kmem_cache_destroy(drc_slab);
|
||||
|
@ -207,26 +224,33 @@ void nfsd_reply_cache_shutdown(void)
|
|||
* not already scheduled.
|
||||
*/
|
||||
static void
|
||||
lru_put_end(struct svc_cacherep *rp)
|
||||
lru_put_end(struct nfsd_drc_bucket *b, struct svc_cacherep *rp)
|
||||
{
|
||||
rp->c_timestamp = jiffies;
|
||||
list_move_tail(&rp->c_lru, &lru_head);
|
||||
list_move_tail(&rp->c_lru, &b->lru_head);
|
||||
schedule_delayed_work(&cache_cleaner, RC_EXPIRE);
|
||||
}
|
||||
|
||||
/*
|
||||
* Move a cache entry from one hash list to another
|
||||
*/
|
||||
static void
|
||||
hash_refile(struct svc_cacherep *rp)
|
||||
static long
|
||||
prune_bucket(struct nfsd_drc_bucket *b)
|
||||
{
|
||||
hlist_del_init(&rp->c_hash);
|
||||
/*
|
||||
* No point in byte swapping c_xid since we're just using it to pick
|
||||
* a hash bucket.
|
||||
*/
|
||||
hlist_add_head(&rp->c_hash, cache_hash +
|
||||
hash_32((__force u32)rp->c_xid, maskbits));
|
||||
struct svc_cacherep *rp, *tmp;
|
||||
long freed = 0;
|
||||
|
||||
list_for_each_entry_safe(rp, tmp, &b->lru_head, c_lru) {
|
||||
/*
|
||||
* Don't free entries attached to calls that are still
|
||||
* in-progress, but do keep scanning the list.
|
||||
*/
|
||||
if (rp->c_state == RC_INPROG)
|
||||
continue;
|
||||
if (atomic_read(&num_drc_entries) <= max_drc_entries &&
|
||||
time_before(jiffies, rp->c_timestamp + RC_EXPIRE))
|
||||
break;
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
freed++;
|
||||
}
|
||||
return freed;
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -236,32 +260,27 @@ hash_refile(struct svc_cacherep *rp)
|
|||
static long
|
||||
prune_cache_entries(void)
|
||||
{
|
||||
struct svc_cacherep *rp, *tmp;
|
||||
unsigned int i;
|
||||
long freed = 0;
|
||||
bool cancel = true;
|
||||
|
||||
list_for_each_entry_safe(rp, tmp, &lru_head, c_lru) {
|
||||
/*
|
||||
* Don't free entries attached to calls that are still
|
||||
* in-progress, but do keep scanning the list.
|
||||
*/
|
||||
if (rp->c_state == RC_INPROG)
|
||||
for (i = 0; i < drc_hashsize; i++) {
|
||||
struct nfsd_drc_bucket *b = &drc_hashtbl[i];
|
||||
|
||||
if (list_empty(&b->lru_head))
|
||||
continue;
|
||||
if (num_drc_entries <= max_drc_entries &&
|
||||
time_before(jiffies, rp->c_timestamp + RC_EXPIRE))
|
||||
break;
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
freed++;
|
||||
spin_lock(&b->cache_lock);
|
||||
freed += prune_bucket(b);
|
||||
if (!list_empty(&b->lru_head))
|
||||
cancel = false;
|
||||
spin_unlock(&b->cache_lock);
|
||||
}
|
||||
|
||||
/*
|
||||
* Conditionally rearm the job. If we cleaned out the list, then
|
||||
* cancel any pending run (since there won't be any work to do).
|
||||
* Otherwise, we rearm the job or modify the existing one to run in
|
||||
* RC_EXPIRE since we just ran the pruner.
|
||||
* Conditionally rearm the job to run in RC_EXPIRE since we just
|
||||
* ran the pruner.
|
||||
*/
|
||||
if (list_empty(&lru_head))
|
||||
cancel_delayed_work(&cache_cleaner);
|
||||
else
|
||||
if (!cancel)
|
||||
mod_delayed_work(system_wq, &cache_cleaner, RC_EXPIRE);
|
||||
return freed;
|
||||
}
|
||||
|
@ -269,32 +288,19 @@ prune_cache_entries(void)
|
|||
static void
|
||||
cache_cleaner_func(struct work_struct *unused)
|
||||
{
|
||||
spin_lock(&cache_lock);
|
||||
prune_cache_entries();
|
||||
spin_unlock(&cache_lock);
|
||||
}
|
||||
|
||||
static unsigned long
|
||||
nfsd_reply_cache_count(struct shrinker *shrink, struct shrink_control *sc)
|
||||
{
|
||||
unsigned long num;
|
||||
|
||||
spin_lock(&cache_lock);
|
||||
num = num_drc_entries;
|
||||
spin_unlock(&cache_lock);
|
||||
|
||||
return num;
|
||||
return atomic_read(&num_drc_entries);
|
||||
}
|
||||
|
||||
static unsigned long
|
||||
nfsd_reply_cache_scan(struct shrinker *shrink, struct shrink_control *sc)
|
||||
{
|
||||
unsigned long freed;
|
||||
|
||||
spin_lock(&cache_lock);
|
||||
freed = prune_cache_entries();
|
||||
spin_unlock(&cache_lock);
|
||||
return freed;
|
||||
return prune_cache_entries();
|
||||
}
|
||||
/*
|
||||
* Walk an xdr_buf and get a CRC for at most the first RC_CSUMLEN bytes
|
||||
|
@ -332,20 +338,24 @@ nfsd_cache_csum(struct svc_rqst *rqstp)
|
|||
static bool
|
||||
nfsd_cache_match(struct svc_rqst *rqstp, __wsum csum, struct svc_cacherep *rp)
|
||||
{
|
||||
/* Check RPC header info first */
|
||||
if (rqstp->rq_xid != rp->c_xid || rqstp->rq_proc != rp->c_proc ||
|
||||
rqstp->rq_prot != rp->c_prot || rqstp->rq_vers != rp->c_vers ||
|
||||
rqstp->rq_arg.len != rp->c_len ||
|
||||
!rpc_cmp_addr(svc_addr(rqstp), (struct sockaddr *)&rp->c_addr) ||
|
||||
rpc_get_port(svc_addr(rqstp)) != rpc_get_port((struct sockaddr *)&rp->c_addr))
|
||||
/* Check RPC XID first */
|
||||
if (rqstp->rq_xid != rp->c_xid)
|
||||
return false;
|
||||
|
||||
/* compare checksum of NFS data */
|
||||
if (csum != rp->c_csum) {
|
||||
++payload_misses;
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Other discriminators */
|
||||
if (rqstp->rq_proc != rp->c_proc ||
|
||||
rqstp->rq_prot != rp->c_prot ||
|
||||
rqstp->rq_vers != rp->c_vers ||
|
||||
rqstp->rq_arg.len != rp->c_len ||
|
||||
!rpc_cmp_addr(svc_addr(rqstp), (struct sockaddr *)&rp->c_addr) ||
|
||||
rpc_get_port(svc_addr(rqstp)) != rpc_get_port((struct sockaddr *)&rp->c_addr))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
@ -355,18 +365,14 @@ nfsd_cache_match(struct svc_rqst *rqstp, __wsum csum, struct svc_cacherep *rp)
|
|||
* NULL on failure.
|
||||
*/
|
||||
static struct svc_cacherep *
|
||||
nfsd_cache_search(struct svc_rqst *rqstp, __wsum csum)
|
||||
nfsd_cache_search(struct nfsd_drc_bucket *b, struct svc_rqst *rqstp,
|
||||
__wsum csum)
|
||||
{
|
||||
struct svc_cacherep *rp, *ret = NULL;
|
||||
struct hlist_head *rh;
|
||||
struct list_head *rh = &b->lru_head;
|
||||
unsigned int entries = 0;
|
||||
|
||||
/*
|
||||
* No point in byte swapping rq_xid since we're just using it to pick
|
||||
* a hash bucket.
|
||||
*/
|
||||
rh = &cache_hash[hash_32((__force u32)rqstp->rq_xid, maskbits)];
|
||||
hlist_for_each_entry(rp, rh, c_hash) {
|
||||
list_for_each_entry(rp, rh, c_lru) {
|
||||
++entries;
|
||||
if (nfsd_cache_match(rqstp, csum, rp)) {
|
||||
ret = rp;
|
||||
|
@ -377,11 +383,12 @@ nfsd_cache_search(struct svc_rqst *rqstp, __wsum csum)
|
|||
/* tally hash chain length stats */
|
||||
if (entries > longest_chain) {
|
||||
longest_chain = entries;
|
||||
longest_chain_cachesize = num_drc_entries;
|
||||
longest_chain_cachesize = atomic_read(&num_drc_entries);
|
||||
} else if (entries == longest_chain) {
|
||||
/* prefer to keep the smallest cachesize possible here */
|
||||
longest_chain_cachesize = min(longest_chain_cachesize,
|
||||
num_drc_entries);
|
||||
longest_chain_cachesize = min_t(unsigned int,
|
||||
longest_chain_cachesize,
|
||||
atomic_read(&num_drc_entries));
|
||||
}
|
||||
|
||||
return ret;
|
||||
|
@ -403,6 +410,8 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
|
|||
vers = rqstp->rq_vers,
|
||||
proc = rqstp->rq_proc;
|
||||
__wsum csum;
|
||||
u32 hash = nfsd_cache_hash(xid);
|
||||
struct nfsd_drc_bucket *b = &drc_hashtbl[hash];
|
||||
unsigned long age;
|
||||
int type = rqstp->rq_cachetype;
|
||||
int rtn = RC_DOIT;
|
||||
|
@ -420,16 +429,16 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
|
|||
* preallocate an entry.
|
||||
*/
|
||||
rp = nfsd_reply_cache_alloc();
|
||||
spin_lock(&cache_lock);
|
||||
spin_lock(&b->cache_lock);
|
||||
if (likely(rp)) {
|
||||
++num_drc_entries;
|
||||
atomic_inc(&num_drc_entries);
|
||||
drc_mem_usage += sizeof(*rp);
|
||||
}
|
||||
|
||||
/* go ahead and prune the cache */
|
||||
prune_cache_entries();
|
||||
prune_bucket(b);
|
||||
|
||||
found = nfsd_cache_search(rqstp, csum);
|
||||
found = nfsd_cache_search(b, rqstp, csum);
|
||||
if (found) {
|
||||
if (likely(rp))
|
||||
nfsd_reply_cache_free_locked(rp);
|
||||
|
@ -454,8 +463,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
|
|||
rp->c_len = rqstp->rq_arg.len;
|
||||
rp->c_csum = csum;
|
||||
|
||||
hash_refile(rp);
|
||||
lru_put_end(rp);
|
||||
lru_put_end(b, rp);
|
||||
|
||||
/* release any buffer */
|
||||
if (rp->c_type == RC_REPLBUFF) {
|
||||
|
@ -465,14 +473,14 @@ nfsd_cache_lookup(struct svc_rqst *rqstp)
|
|||
}
|
||||
rp->c_type = RC_NOCACHE;
|
||||
out:
|
||||
spin_unlock(&cache_lock);
|
||||
spin_unlock(&b->cache_lock);
|
||||
return rtn;
|
||||
|
||||
found_entry:
|
||||
nfsdstats.rchits++;
|
||||
/* We found a matching entry which is either in progress or done. */
|
||||
age = jiffies - rp->c_timestamp;
|
||||
lru_put_end(rp);
|
||||
lru_put_end(b, rp);
|
||||
|
||||
rtn = RC_DROPIT;
|
||||
/* Request being processed or excessive rexmits */
|
||||
|
@ -527,18 +535,23 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
|
|||
{
|
||||
struct svc_cacherep *rp = rqstp->rq_cacherep;
|
||||
struct kvec *resv = &rqstp->rq_res.head[0], *cachv;
|
||||
u32 hash;
|
||||
struct nfsd_drc_bucket *b;
|
||||
int len;
|
||||
size_t bufsize = 0;
|
||||
|
||||
if (!rp)
|
||||
return;
|
||||
|
||||
hash = nfsd_cache_hash(rp->c_xid);
|
||||
b = &drc_hashtbl[hash];
|
||||
|
||||
len = resv->iov_len - ((char*)statp - (char*)resv->iov_base);
|
||||
len >>= 2;
|
||||
|
||||
/* Don't cache excessive amounts of data and XDR failures */
|
||||
if (!statp || len > (256 >> 2)) {
|
||||
nfsd_reply_cache_free(rp);
|
||||
nfsd_reply_cache_free(b, rp);
|
||||
return;
|
||||
}
|
||||
|
||||
|
@ -553,23 +566,23 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, __be32 *statp)
|
|||
bufsize = len << 2;
|
||||
cachv->iov_base = kmalloc(bufsize, GFP_KERNEL);
|
||||
if (!cachv->iov_base) {
|
||||
nfsd_reply_cache_free(rp);
|
||||
nfsd_reply_cache_free(b, rp);
|
||||
return;
|
||||
}
|
||||
cachv->iov_len = bufsize;
|
||||
memcpy(cachv->iov_base, statp, bufsize);
|
||||
break;
|
||||
case RC_NOCACHE:
|
||||
nfsd_reply_cache_free(rp);
|
||||
nfsd_reply_cache_free(b, rp);
|
||||
return;
|
||||
}
|
||||
spin_lock(&cache_lock);
|
||||
spin_lock(&b->cache_lock);
|
||||
drc_mem_usage += bufsize;
|
||||
lru_put_end(rp);
|
||||
lru_put_end(b, rp);
|
||||
rp->c_secure = rqstp->rq_secure;
|
||||
rp->c_type = cachetype;
|
||||
rp->c_state = RC_DONE;
|
||||
spin_unlock(&cache_lock);
|
||||
spin_unlock(&b->cache_lock);
|
||||
return;
|
||||
}
|
||||
|
||||
|
@ -600,9 +613,9 @@ nfsd_cache_append(struct svc_rqst *rqstp, struct kvec *data)
|
|||
*/
|
||||
static int nfsd_reply_cache_stats_show(struct seq_file *m, void *v)
|
||||
{
|
||||
spin_lock(&cache_lock);
|
||||
seq_printf(m, "max entries: %u\n", max_drc_entries);
|
||||
seq_printf(m, "num entries: %u\n", num_drc_entries);
|
||||
seq_printf(m, "num entries: %u\n",
|
||||
atomic_read(&num_drc_entries));
|
||||
seq_printf(m, "hash buckets: %u\n", 1 << maskbits);
|
||||
seq_printf(m, "mem usage: %u\n", drc_mem_usage);
|
||||
seq_printf(m, "cache hits: %u\n", nfsdstats.rchits);
|
||||
|
@ -611,7 +624,6 @@ static int nfsd_reply_cache_stats_show(struct seq_file *m, void *v)
|
|||
seq_printf(m, "payload misses: %u\n", payload_misses);
|
||||
seq_printf(m, "longest chain len: %u\n", longest_chain);
|
||||
seq_printf(m, "cachesize at longest: %u\n", longest_chain_cachesize);
|
||||
spin_unlock(&cache_lock);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -49,6 +49,7 @@ enum {
|
|||
NFSD_Leasetime,
|
||||
NFSD_Gracetime,
|
||||
NFSD_RecoveryDir,
|
||||
NFSD_V4EndGrace,
|
||||
#endif
|
||||
};
|
||||
|
||||
|
@ -68,6 +69,7 @@ static ssize_t write_maxconn(struct file *file, char *buf, size_t size);
|
|||
static ssize_t write_leasetime(struct file *file, char *buf, size_t size);
|
||||
static ssize_t write_gracetime(struct file *file, char *buf, size_t size);
|
||||
static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
|
||||
static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size);
|
||||
#endif
|
||||
|
||||
static ssize_t (*write_op[])(struct file *, char *, size_t) = {
|
||||
|
@ -84,6 +86,7 @@ static ssize_t (*write_op[])(struct file *, char *, size_t) = {
|
|||
[NFSD_Leasetime] = write_leasetime,
|
||||
[NFSD_Gracetime] = write_gracetime,
|
||||
[NFSD_RecoveryDir] = write_recoverydir,
|
||||
[NFSD_V4EndGrace] = write_v4_end_grace,
|
||||
#endif
|
||||
};
|
||||
|
||||
|
@ -1077,6 +1080,47 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
|
|||
return rv;
|
||||
}
|
||||
|
||||
/**
|
||||
* write_v4_end_grace - release grace period for nfsd's v4.x lock manager
|
||||
*
|
||||
* Input:
|
||||
* buf: ignored
|
||||
* size: zero
|
||||
* OR
|
||||
*
|
||||
* Input:
|
||||
* buf: any value
|
||||
* size: non-zero length of C string in @buf
|
||||
* Output:
|
||||
* passed-in buffer filled with "Y" or "N" with a newline
|
||||
* and NULL-terminated C string. This indicates whether
|
||||
* the grace period has ended in the current net
|
||||
* namespace. Return code is the size in bytes of the
|
||||
* string. Writing a string that starts with 'Y', 'y', or
|
||||
* '1' to the file will end the grace period for nfsd's v4
|
||||
* lock manager.
|
||||
*/
|
||||
static ssize_t write_v4_end_grace(struct file *file, char *buf, size_t size)
|
||||
{
|
||||
struct net *net = file->f_dentry->d_sb->s_fs_info;
|
||||
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
|
||||
|
||||
if (size > 0) {
|
||||
switch(buf[0]) {
|
||||
case 'Y':
|
||||
case 'y':
|
||||
case '1':
|
||||
nfsd4_end_grace(nn);
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return scnprintf(buf, SIMPLE_TRANSACTION_LIMIT, "%c\n",
|
||||
nn->grace_ended ? 'Y' : 'N');
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
/*----------------------------------------------------------------------------*/
|
||||
|
@ -1110,6 +1154,7 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
|
|||
[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
|
||||
[NFSD_Gracetime] = {"nfsv4gracetime", &transaction_ops, S_IWUSR|S_IRUSR},
|
||||
[NFSD_RecoveryDir] = {"nfsv4recoverydir", &transaction_ops, S_IWUSR|S_IRUSR},
|
||||
[NFSD_V4EndGrace] = {"v4_end_grace", &transaction_ops, S_IWUSR|S_IRUGO},
|
||||
#endif
|
||||
/* last one */ {""}
|
||||
};
|
||||
|
|
|
@ -251,7 +251,7 @@ void nfsd_lockd_shutdown(void);
|
|||
#define nfserr_deleg_revoked cpu_to_be32(NFS4ERR_DELEG_REVOKED)
|
||||
#define nfserr_partner_notsupp cpu_to_be32(NFS4ERR_PARTNER_NOTSUPP)
|
||||
#define nfserr_partner_no_auth cpu_to_be32(NFS4ERR_PARTNER_NO_AUTH)
|
||||
#define nfserr_metadata_notsupp cpu_to_be32(NFS4ERR_METADATA_NOTSUPP)
|
||||
#define nfserr_union_notsupp cpu_to_be32(NFS4ERR_UNION_NOTSUPP)
|
||||
#define nfserr_offload_denied cpu_to_be32(NFS4ERR_OFFLOAD_DENIED)
|
||||
#define nfserr_wrong_lfs cpu_to_be32(NFS4ERR_WRONG_LFS)
|
||||
#define nfserr_badlabel cpu_to_be32(NFS4ERR_BADLABEL)
|
||||
|
|
|
@ -209,8 +209,10 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)
|
|||
* fix that case easily.
|
||||
*/
|
||||
struct cred *new = prepare_creds();
|
||||
if (!new)
|
||||
return nfserrno(-ENOMEM);
|
||||
if (!new) {
|
||||
error = nfserrno(-ENOMEM);
|
||||
goto out;
|
||||
}
|
||||
new->cap_effective =
|
||||
cap_raise_nfsd_set(new->cap_effective,
|
||||
new->cap_permitted);
|
||||
|
|
|
@ -62,16 +62,21 @@ typedef struct {
|
|||
(s)->si_generation
|
||||
|
||||
struct nfsd4_callback {
|
||||
void *cb_op;
|
||||
struct nfs4_client *cb_clp;
|
||||
struct list_head cb_per_client;
|
||||
u32 cb_minorversion;
|
||||
struct rpc_message cb_msg;
|
||||
const struct rpc_call_ops *cb_ops;
|
||||
struct nfsd4_callback_ops *cb_ops;
|
||||
struct work_struct cb_work;
|
||||
bool cb_done;
|
||||
};
|
||||
|
||||
struct nfsd4_callback_ops {
|
||||
void (*prepare)(struct nfsd4_callback *);
|
||||
int (*done)(struct nfsd4_callback *, struct rpc_task *);
|
||||
void (*release)(struct nfsd4_callback *);
|
||||
};
|
||||
|
||||
/*
|
||||
* A core object that represents a "common" stateid. These are generally
|
||||
* embedded within the different (more specific) stateid objects and contain
|
||||
|
@ -306,6 +311,7 @@ struct nfs4_client {
|
|||
#define NFSD4_CLIENT_STABLE (2) /* client on stable storage */
|
||||
#define NFSD4_CLIENT_RECLAIM_COMPLETE (3) /* reclaim_complete done */
|
||||
#define NFSD4_CLIENT_CONFIRMED (4) /* client is confirmed */
|
||||
#define NFSD4_CLIENT_UPCALL_LOCK (5) /* upcall serialization */
|
||||
#define NFSD4_CLIENT_CB_FLAG_MASK (1 << NFSD4_CLIENT_CB_UPDATE | \
|
||||
1 << NFSD4_CLIENT_CB_KILL)
|
||||
unsigned long cl_flags;
|
||||
|
@ -517,6 +523,13 @@ static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
|
|||
#define RD_STATE 0x00000010
|
||||
#define WR_STATE 0x00000020
|
||||
|
||||
enum nfsd4_cb_op {
|
||||
NFSPROC4_CLNT_CB_NULL = 0,
|
||||
NFSPROC4_CLNT_CB_RECALL,
|
||||
NFSPROC4_CLNT_CB_SEQUENCE,
|
||||
};
|
||||
|
||||
|
||||
struct nfsd4_compound_state;
|
||||
struct nfsd_net;
|
||||
|
||||
|
@ -531,12 +544,12 @@ extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(const char *recdir,
|
|||
extern __be32 nfs4_check_open_reclaim(clientid_t *clid,
|
||||
struct nfsd4_compound_state *cstate, struct nfsd_net *nn);
|
||||
extern int set_callback_cred(void);
|
||||
void nfsd4_run_cb_null(struct work_struct *w);
|
||||
void nfsd4_run_cb_recall(struct work_struct *w);
|
||||
extern void nfsd4_probe_callback(struct nfs4_client *clp);
|
||||
extern void nfsd4_probe_callback_sync(struct nfs4_client *clp);
|
||||
extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *);
|
||||
extern void nfsd4_cb_recall(struct nfs4_delegation *dp);
|
||||
extern void nfsd4_init_cb(struct nfsd4_callback *cb, struct nfs4_client *clp,
|
||||
struct nfsd4_callback_ops *ops, enum nfsd4_cb_op op);
|
||||
extern void nfsd4_run_cb(struct nfsd4_callback *cb);
|
||||
extern int nfsd4_create_callback_queue(void);
|
||||
extern void nfsd4_destroy_callback_queue(void);
|
||||
extern void nfsd4_shutdown_callback(struct nfs4_client *);
|
||||
|
@ -545,13 +558,16 @@ extern struct nfs4_client_reclaim *nfs4_client_to_reclaim(const char *name,
|
|||
struct nfsd_net *nn);
|
||||
extern bool nfs4_has_reclaimed_state(const char *name, struct nfsd_net *nn);
|
||||
|
||||
/* grace period management */
|
||||
void nfsd4_end_grace(struct nfsd_net *nn);
|
||||
|
||||
/* nfs4recover operations */
|
||||
extern int nfsd4_client_tracking_init(struct net *net);
|
||||
extern void nfsd4_client_tracking_exit(struct net *net);
|
||||
extern void nfsd4_client_record_create(struct nfs4_client *clp);
|
||||
extern void nfsd4_client_record_remove(struct nfs4_client *clp);
|
||||
extern int nfsd4_client_record_check(struct nfs4_client *clp);
|
||||
extern void nfsd4_record_grace_done(struct nfsd_net *nn, time_t boot_time);
|
||||
extern void nfsd4_record_grace_done(struct nfsd_net *nn);
|
||||
|
||||
/* nfs fault injection functions */
|
||||
#ifdef CONFIG_NFSD_FAULT_INJECTION
|
||||
|
|
|
@ -445,6 +445,16 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
|
|||
if (err)
|
||||
goto out;
|
||||
size_change = 1;
|
||||
|
||||
/*
|
||||
* RFC5661, Section 18.30.4:
|
||||
* Changing the size of a file with SETATTR indirectly
|
||||
* changes the time_modify and change attributes.
|
||||
*
|
||||
* (and similar for the older RFCs)
|
||||
*/
|
||||
if (iap->ia_size != i_size_read(inode))
|
||||
iap->ia_valid |= ATTR_MTIME;
|
||||
}
|
||||
|
||||
iap->ia_valid |= ATTR_CTIME;
|
||||
|
@ -649,6 +659,7 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
|
|||
{
|
||||
struct path path;
|
||||
struct inode *inode;
|
||||
struct file *file;
|
||||
int flags = O_RDONLY|O_LARGEFILE;
|
||||
__be32 err;
|
||||
int host_err = 0;
|
||||
|
@ -703,19 +714,25 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
|
|||
else
|
||||
flags = O_WRONLY|O_LARGEFILE;
|
||||
}
|
||||
*filp = dentry_open(&path, flags, current_cred());
|
||||
if (IS_ERR(*filp)) {
|
||||
host_err = PTR_ERR(*filp);
|
||||
*filp = NULL;
|
||||
} else {
|
||||
host_err = ima_file_check(*filp, may_flags);
|
||||
|
||||
if (may_flags & NFSD_MAY_64BIT_COOKIE)
|
||||
(*filp)->f_mode |= FMODE_64BITHASH;
|
||||
else
|
||||
(*filp)->f_mode |= FMODE_32BITHASH;
|
||||
file = dentry_open(&path, flags, current_cred());
|
||||
if (IS_ERR(file)) {
|
||||
host_err = PTR_ERR(file);
|
||||
goto out_nfserr;
|
||||
}
|
||||
|
||||
host_err = ima_file_check(file, may_flags);
|
||||
if (host_err) {
|
||||
nfsd_close(file);
|
||||
goto out_nfserr;
|
||||
}
|
||||
|
||||
if (may_flags & NFSD_MAY_64BIT_COOKIE)
|
||||
file->f_mode |= FMODE_64BITHASH;
|
||||
else
|
||||
file->f_mode |= FMODE_32BITHASH;
|
||||
|
||||
*filp = file;
|
||||
out_nfserr:
|
||||
err = nfserrno(host_err);
|
||||
out:
|
||||
|
|
|
@ -428,6 +428,17 @@ struct nfsd4_reclaim_complete {
|
|||
u32 rca_one_fs;
|
||||
};
|
||||
|
||||
struct nfsd4_seek {
|
||||
/* request */
|
||||
stateid_t seek_stateid;
|
||||
loff_t seek_offset;
|
||||
u32 seek_whence;
|
||||
|
||||
/* response */
|
||||
u32 seek_eof;
|
||||
loff_t seek_pos;
|
||||
};
|
||||
|
||||
struct nfsd4_op {
|
||||
int opnum;
|
||||
__be32 status;
|
||||
|
@ -473,6 +484,9 @@ struct nfsd4_op {
|
|||
struct nfsd4_reclaim_complete reclaim_complete;
|
||||
struct nfsd4_test_stateid test_stateid;
|
||||
struct nfsd4_free_stateid free_stateid;
|
||||
|
||||
/* NFSv4.2 */
|
||||
struct nfsd4_seek seek;
|
||||
} u;
|
||||
struct nfs4_replay * replay;
|
||||
};
|
||||
|
|
|
@ -110,6 +110,20 @@ enum nfs_opnum4 {
|
|||
OP_DESTROY_CLIENTID = 57,
|
||||
OP_RECLAIM_COMPLETE = 58,
|
||||
|
||||
/* nfs42 */
|
||||
OP_ALLOCATE = 59,
|
||||
OP_COPY = 60,
|
||||
OP_COPY_NOTIFY = 61,
|
||||
OP_DEALLOCATE = 62,
|
||||
OP_IO_ADVISE = 63,
|
||||
OP_LAYOUTERROR = 64,
|
||||
OP_LAYOUTSTATS = 65,
|
||||
OP_OFFLOAD_CANCEL = 66,
|
||||
OP_OFFLOAD_STATUS = 67,
|
||||
OP_READ_PLUS = 68,
|
||||
OP_SEEK = 69,
|
||||
OP_WRITE_SAME = 70,
|
||||
|
||||
OP_ILLEGAL = 10044,
|
||||
};
|
||||
|
||||
|
@ -117,10 +131,10 @@ enum nfs_opnum4 {
|
|||
Needs to be updated if more operations are defined in future.*/
|
||||
|
||||
#define FIRST_NFS4_OP OP_ACCESS
|
||||
#define LAST_NFS4_OP OP_RECLAIM_COMPLETE
|
||||
#define LAST_NFS4_OP OP_WRITE_SAME
|
||||
#define LAST_NFS40_OP OP_RELEASE_LOCKOWNER
|
||||
#define LAST_NFS41_OP OP_RECLAIM_COMPLETE
|
||||
#define LAST_NFS42_OP OP_RECLAIM_COMPLETE
|
||||
#define LAST_NFS42_OP OP_WRITE_SAME
|
||||
|
||||
enum nfsstat4 {
|
||||
NFS4_OK = 0,
|
||||
|
@ -235,10 +249,11 @@ enum nfsstat4 {
|
|||
/* nfs42 */
|
||||
NFS4ERR_PARTNER_NOTSUPP = 10088,
|
||||
NFS4ERR_PARTNER_NO_AUTH = 10089,
|
||||
NFS4ERR_METADATA_NOTSUPP = 10090,
|
||||
NFS4ERR_UNION_NOTSUPP = 10090,
|
||||
NFS4ERR_OFFLOAD_DENIED = 10091,
|
||||
NFS4ERR_WRONG_LFS = 10092,
|
||||
NFS4ERR_BADLABEL = 10093,
|
||||
NFS4ERR_OFFLOAD_NO_REQS = 10094,
|
||||
};
|
||||
|
||||
static inline bool seqid_mutating_err(u32 err)
|
||||
|
@ -535,4 +550,9 @@ struct nfs4_deviceid {
|
|||
char data[NFS4_DEVICEID4_SIZE];
|
||||
};
|
||||
|
||||
enum data_content4 {
|
||||
NFS4_CONTENT_DATA = 0,
|
||||
NFS4_CONTENT_HOLE = 1,
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
|
@ -74,6 +74,8 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
|
|||
|
||||
#endif /* CONFIG_PROC_FS */
|
||||
|
||||
struct net;
|
||||
|
||||
static inline struct proc_dir_entry *proc_net_mkdir(
|
||||
struct net *net, const char *name, struct proc_dir_entry *parent)
|
||||
{
|
||||
|
|
|
@ -280,7 +280,6 @@ struct svc_rqst {
|
|||
bool rq_splice_ok; /* turned off in gss privacy
|
||||
* to prevent encrypting page
|
||||
* cache pages */
|
||||
wait_queue_head_t rq_wait; /* synchronization */
|
||||
struct task_struct *rq_task; /* service thread */
|
||||
};
|
||||
|
||||
|
|
|
@ -28,7 +28,8 @@
|
|||
#define NFSEXP_ALLSQUASH 0x0008
|
||||
#define NFSEXP_ASYNC 0x0010
|
||||
#define NFSEXP_GATHERED_WRITES 0x0020
|
||||
/* 40 80 100 currently unused */
|
||||
#define NFSEXP_NOREADDIRPLUS 0x0040
|
||||
/* 80 100 currently unused */
|
||||
#define NFSEXP_NOHIDE 0x0200
|
||||
#define NFSEXP_NOSUBTREECHECK 0x0400
|
||||
#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
|
||||
|
@ -47,7 +48,7 @@
|
|||
*/
|
||||
#define NFSEXP_V4ROOT 0x10000
|
||||
/* All flags that we claim to support. (Note we don't support NOACL.) */
|
||||
#define NFSEXP_ALLFLAGS 0x17E3F
|
||||
#define NFSEXP_ALLFLAGS 0x1FE7F
|
||||
|
||||
/* The flags that may vary depending on security flavor: */
|
||||
#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
|
||||
|
|
|
@ -612,8 +612,6 @@ svc_prepare_thread(struct svc_serv *serv, struct svc_pool *pool, int node)
|
|||
if (!rqstp)
|
||||
goto out_enomem;
|
||||
|
||||
init_waitqueue_head(&rqstp->rq_wait);
|
||||
|
||||
serv->sv_nrthreads++;
|
||||
spin_lock_bh(&pool->sp_lock);
|
||||
pool->sp_nrthreads++;
|
||||
|
|
|
@ -346,20 +346,6 @@ static void svc_xprt_do_enqueue(struct svc_xprt *xprt)
|
|||
if (!svc_xprt_has_something_to_do(xprt))
|
||||
return;
|
||||
|
||||
cpu = get_cpu();
|
||||
pool = svc_pool_for_cpu(xprt->xpt_server, cpu);
|
||||
put_cpu();
|
||||
|
||||
spin_lock_bh(&pool->sp_lock);
|
||||
|
||||
if (!list_empty(&pool->sp_threads) &&
|
||||
!list_empty(&pool->sp_sockets))
|
||||
printk(KERN_ERR
|
||||
"svc_xprt_enqueue: "
|
||||
"threads and transports both waiting??\n");
|
||||
|
||||
pool->sp_stats.packets++;
|
||||
|
||||
/* Mark transport as busy. It will remain in this state until
|
||||
* the provider calls svc_xprt_received. We update XPT_BUSY
|
||||
* atomically because it also guards against trying to enqueue
|
||||
|
@ -368,9 +354,15 @@ static void svc_xprt_do_enqueue(struct svc_xprt *xprt)
|
|||
if (test_and_set_bit(XPT_BUSY, &xprt->xpt_flags)) {
|
||||
/* Don't enqueue transport while already enqueued */
|
||||
dprintk("svc: transport %p busy, not enqueued\n", xprt);
|
||||
goto out_unlock;
|
||||
return;
|
||||
}
|
||||
|
||||
cpu = get_cpu();
|
||||
pool = svc_pool_for_cpu(xprt->xpt_server, cpu);
|
||||
spin_lock_bh(&pool->sp_lock);
|
||||
|
||||
pool->sp_stats.packets++;
|
||||
|
||||
if (!list_empty(&pool->sp_threads)) {
|
||||
rqstp = list_entry(pool->sp_threads.next,
|
||||
struct svc_rqst,
|
||||
|
@ -382,18 +374,23 @@ static void svc_xprt_do_enqueue(struct svc_xprt *xprt)
|
|||
printk(KERN_ERR
|
||||
"svc_xprt_enqueue: server %p, rq_xprt=%p!\n",
|
||||
rqstp, rqstp->rq_xprt);
|
||||
rqstp->rq_xprt = xprt;
|
||||
/* Note the order of the following 3 lines:
|
||||
* We want to assign xprt to rqstp->rq_xprt only _after_
|
||||
* we've woken up the process, so that we don't race with
|
||||
* the lockless check in svc_get_next_xprt().
|
||||
*/
|
||||
svc_xprt_get(xprt);
|
||||
wake_up_process(rqstp->rq_task);
|
||||
rqstp->rq_xprt = xprt;
|
||||
pool->sp_stats.threads_woken++;
|
||||
wake_up(&rqstp->rq_wait);
|
||||
} else {
|
||||
dprintk("svc: transport %p put into queue\n", xprt);
|
||||
list_add_tail(&xprt->xpt_ready, &pool->sp_sockets);
|
||||
pool->sp_stats.sockets_queued++;
|
||||
}
|
||||
|
||||
out_unlock:
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
put_cpu();
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -509,7 +506,7 @@ void svc_wake_up(struct svc_serv *serv)
|
|||
svc_thread_dequeue(pool, rqstp);
|
||||
rqstp->rq_xprt = NULL;
|
||||
*/
|
||||
wake_up(&rqstp->rq_wait);
|
||||
wake_up_process(rqstp->rq_task);
|
||||
} else
|
||||
pool->sp_task_pending = 1;
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
|
@ -628,8 +625,7 @@ static struct svc_xprt *svc_get_next_xprt(struct svc_rqst *rqstp, long timeout)
|
|||
{
|
||||
struct svc_xprt *xprt;
|
||||
struct svc_pool *pool = rqstp->rq_pool;
|
||||
DECLARE_WAITQUEUE(wait, current);
|
||||
long time_left;
|
||||
long time_left = 0;
|
||||
|
||||
/* Normally we will wait up to 5 seconds for any required
|
||||
* cache information to be provided.
|
||||
|
@ -651,40 +647,32 @@ static struct svc_xprt *svc_get_next_xprt(struct svc_rqst *rqstp, long timeout)
|
|||
} else {
|
||||
if (pool->sp_task_pending) {
|
||||
pool->sp_task_pending = 0;
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
return ERR_PTR(-EAGAIN);
|
||||
xprt = ERR_PTR(-EAGAIN);
|
||||
goto out;
|
||||
}
|
||||
/* No data pending. Go to sleep */
|
||||
svc_thread_enqueue(pool, rqstp);
|
||||
|
||||
/*
|
||||
* We have to be able to interrupt this wait
|
||||
* to bring down the daemons ...
|
||||
*/
|
||||
set_current_state(TASK_INTERRUPTIBLE);
|
||||
|
||||
/*
|
||||
* checking kthread_should_stop() here allows us to avoid
|
||||
* locking and signalling when stopping kthreads that call
|
||||
* svc_recv. If the thread has already been woken up, then
|
||||
* we can exit here without sleeping. If not, then it
|
||||
* it'll be woken up quickly during the schedule_timeout
|
||||
*/
|
||||
if (kthread_should_stop()) {
|
||||
set_current_state(TASK_RUNNING);
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
return ERR_PTR(-EINTR);
|
||||
}
|
||||
|
||||
add_wait_queue(&rqstp->rq_wait, &wait);
|
||||
/* No data pending. Go to sleep */
|
||||
svc_thread_enqueue(pool, rqstp);
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
|
||||
time_left = schedule_timeout(timeout);
|
||||
if (!(signalled() || kthread_should_stop())) {
|
||||
time_left = schedule_timeout(timeout);
|
||||
__set_current_state(TASK_RUNNING);
|
||||
|
||||
try_to_freeze();
|
||||
try_to_freeze();
|
||||
|
||||
xprt = rqstp->rq_xprt;
|
||||
if (xprt != NULL)
|
||||
return xprt;
|
||||
} else
|
||||
__set_current_state(TASK_RUNNING);
|
||||
|
||||
spin_lock_bh(&pool->sp_lock);
|
||||
remove_wait_queue(&rqstp->rq_wait, &wait);
|
||||
if (!time_left)
|
||||
pool->sp_stats.threads_timedout++;
|
||||
|
||||
|
@ -699,6 +687,7 @@ static struct svc_xprt *svc_get_next_xprt(struct svc_rqst *rqstp, long timeout)
|
|||
return ERR_PTR(-EAGAIN);
|
||||
}
|
||||
}
|
||||
out:
|
||||
spin_unlock_bh(&pool->sp_lock);
|
||||
return xprt;
|
||||
}
|
||||
|
@ -744,7 +733,7 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt)
|
|||
svc_add_new_temp_xprt(serv, newxpt);
|
||||
else
|
||||
module_put(xprt->xpt_class->xcl_owner);
|
||||
} else if (xprt->xpt_ops->xpo_has_wspace(xprt)) {
|
||||
} else {
|
||||
/* XPT_DATA|XPT_DEFERRED case: */
|
||||
dprintk("svc: server %p, pool %u, transport %p, inuse=%d\n",
|
||||
rqstp, rqstp->rq_pool->sp_id, xprt,
|
||||
|
@ -781,10 +770,6 @@ int svc_recv(struct svc_rqst *rqstp, long timeout)
|
|||
printk(KERN_ERR
|
||||
"svc_recv: service %p, transport not NULL!\n",
|
||||
rqstp);
|
||||
if (waitqueue_active(&rqstp->rq_wait))
|
||||
printk(KERN_ERR
|
||||
"svc_recv: service %p, wait queue active!\n",
|
||||
rqstp);
|
||||
|
||||
err = svc_alloc_arg(rqstp);
|
||||
if (err)
|
||||
|
|
|
@ -311,19 +311,6 @@ static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining)
|
|||
return len;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check input queue length
|
||||
*/
|
||||
static int svc_recv_available(struct svc_sock *svsk)
|
||||
{
|
||||
struct socket *sock = svsk->sk_sock;
|
||||
int avail, err;
|
||||
|
||||
err = kernel_sock_ioctl(sock, TIOCINQ, (unsigned long) &avail);
|
||||
|
||||
return (err >= 0)? avail : err;
|
||||
}
|
||||
|
||||
/*
|
||||
* Generic recvfrom routine.
|
||||
*/
|
||||
|
@ -339,8 +326,14 @@ static int svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr,
|
|||
|
||||
rqstp->rq_xprt_hlen = 0;
|
||||
|
||||
clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
|
||||
len = kernel_recvmsg(svsk->sk_sock, &msg, iov, nr, buflen,
|
||||
msg.msg_flags);
|
||||
/* If we read a full record, then assume there may be more
|
||||
* data to read (stream based sockets only!)
|
||||
*/
|
||||
if (len == buflen)
|
||||
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
|
||||
|
||||
dprintk("svc: socket %p recvfrom(%p, %Zu) = %d\n",
|
||||
svsk, iov[0].iov_base, iov[0].iov_len, len);
|
||||
|
@ -980,8 +973,6 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp)
|
|||
unsigned int want;
|
||||
int len;
|
||||
|
||||
clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
|
||||
|
||||
if (svsk->sk_tcplen < sizeof(rpc_fraghdr)) {
|
||||
struct kvec iov;
|
||||
|
||||
|
@ -1036,7 +1027,7 @@ static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp)
|
|||
"%s: Got unrecognized reply: "
|
||||
"calldir 0x%x xpt_bc_xprt %p xid %08x\n",
|
||||
__func__, ntohl(calldir),
|
||||
bc_xprt, xid);
|
||||
bc_xprt, ntohl(xid));
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
|
@ -1073,8 +1064,6 @@ static int copy_pages_to_kvecs(struct kvec *vec, struct page **pages, int len)
|
|||
static void svc_tcp_fragment_received(struct svc_sock *svsk)
|
||||
{
|
||||
/* If we have more data, signal svc_xprt_enqueue() to try again */
|
||||
if (svc_recv_available(svsk) > sizeof(rpc_fraghdr))
|
||||
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
|
||||
dprintk("svc: TCP %s record (%d bytes)\n",
|
||||
svc_sock_final_rec(svsk) ? "final" : "nonfinal",
|
||||
svc_sock_reclen(svsk));
|
||||
|
|
|
@ -91,7 +91,7 @@ struct svc_xprt_class svc_rdma_class = {
|
|||
.xcl_name = "rdma",
|
||||
.xcl_owner = THIS_MODULE,
|
||||
.xcl_ops = &svc_rdma_ops,
|
||||
.xcl_max_payload = RPCSVC_MAXPAYLOAD_TCP,
|
||||
.xcl_max_payload = RPCSVC_MAXPAYLOAD_RDMA,
|
||||
.xcl_ident = XPRT_TRANSPORT_RDMA,
|
||||
};
|
||||
|
||||
|
|
|
@ -51,6 +51,7 @@
|
|||
#include <linux/sunrpc/clnt.h> /* rpc_xprt */
|
||||
#include <linux/sunrpc/rpc_rdma.h> /* RPC/RDMA protocol */
|
||||
#include <linux/sunrpc/xprtrdma.h> /* xprt parameters */
|
||||
#include <linux/sunrpc/svc.h> /* RPCSVC_MAXPAYLOAD */
|
||||
|
||||
#define RDMA_RESOLVE_TIMEOUT (5000) /* 5 seconds */
|
||||
#define RDMA_CONNECT_RETRY_MAX (2) /* retries if no listener backlog */
|
||||
|
@ -392,4 +393,10 @@ extern struct kmem_cache *svc_rdma_ctxt_cachep;
|
|||
/* Workqueue created in svc_rdma.c */
|
||||
extern struct workqueue_struct *svc_rdma_wq;
|
||||
|
||||
#if RPCSVC_MAXPAYLOAD < (RPCRDMA_MAX_DATA_SEGS << PAGE_SHIFT)
|
||||
#define RPCSVC_MAXPAYLOAD_RDMA RPCSVC_MAXPAYLOAD
|
||||
#else
|
||||
#define RPCSVC_MAXPAYLOAD_RDMA (RPCRDMA_MAX_DATA_SEGS << PAGE_SHIFT)
|
||||
#endif
|
||||
|
||||
#endif /* _LINUX_SUNRPC_XPRT_RDMA_H */
|
||||
|
|
Loading…
Reference in a new issue