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Merge branch 'nfsd-next' of git://linux-nfs.org/~bfields/linux

Browse Source 
Pull nfsd changes from J. Bruce Fields:
 "This has been an unusually quiet cycle--mostly bugfixes and cleanup.
  The one large piece is Stanislav's work to containerize the server's
  grace period--but that in itself is just one more step in a
  not-yet-complete project to allow fully containerized nfs service.

  There are a number of outstanding delegation, container, v4 state, and
  gss patches that aren't quite ready yet; 3.7 may be wilder."

* 'nfsd-next' of git://linux-nfs.org/~bfields/linux: (35 commits)
  NFSd: make boot_time variable per network namespace
  NFSd: make grace end flag per network namespace
  Lockd: move grace period management from lockd() to per-net functions
  LockD: pass actual network namespace to grace period management functions
  LockD: manage grace list per network namespace
  SUNRPC: service request network namespace helper introduced
  NFSd: make nfsd4_manager allocated per network namespace context.
  LockD: make lockd manager allocated per network namespace
  LockD: manage grace period per network namespace
  Lockd: add more debug to host shutdown functions
  Lockd: host complaining function introduced
  LockD: manage used host count per networks namespace
  LockD: manage garbage collection timeout per networks namespace
  LockD: make garbage collector network namespace aware.
  LockD: mark host per network namespace on garbage collect
  nfsd4: fix missing fault_inject.h include
  locks: move lease-specific code out of locks_delete_lock
  locks: prevent side-effects of locks_release_private before file_lock is initialized
  NFSd: set nfsd_serv to NULL after service destruction
  NFSd: introduce nfsd_destroy() helper
  ...
This commit is contained in:
Linus Torvalds 2012-07-31 14:42:28 -07:00
commit 08843b79fb
27 changed files with 368 additions and 237 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
fs/lockd/grace.c
View File

@ -4,8 +4,10 @@
#include <linux/module.h>
#include <linux/lockd/bind.h>
#include <net/net_namespace.h>
#include "netns.h"
static LIST_HEAD(grace_list);
static DEFINE_SPINLOCK(grace_lock);
/**
@ -19,10 +21,12 @@ static DEFINE_SPINLOCK(grace_lock);
*
* This function is called to start a grace period.
*/
void locks_start_grace(struct lock_manager *lm)
void locks_start_grace(struct net *net, struct lock_manager *lm)
{
struct lockd_net *ln = net_generic(net, lockd_net_id);
spin_lock(&grace_lock);
list_add(&lm->list, &grace_list);
list_add(&lm->list, &ln->grace_list);
spin_unlock(&grace_lock);
}
EXPORT_SYMBOL_GPL(locks_start_grace);
@ -52,8 +56,10 @@ EXPORT_SYMBOL_GPL(locks_end_grace);
* to answer ordinary lock requests, and when they should accept only
* lock reclaims.
*/
int locks_in_grace(void)
int locks_in_grace(struct net *net)
{
return !list_empty(&grace_list);
struct lockd_net *ln = net_generic(net, lockd_net_id);
return !list_empty(&ln->grace_list);
}
EXPORT_SYMBOL_GPL(locks_in_grace);

92
fs/lockd/host.c
View File

@ -21,6 +21,8 @@
#include <net/ipv6.h>
#include "netns.h"
#define NLMDBG_FACILITY NLMDBG_HOSTCACHE
#define NLM_HOST_NRHASH 32
#define NLM_HOST_REBIND (60 * HZ)
@ -41,11 +43,10 @@ static struct hlist_head nlm_client_hosts[NLM_HOST_NRHASH];
hlist_for_each_entry_safe((host), (pos), (next), \
(chain), h_hash)
static unsigned long next_gc;
static unsigned long nrhosts;
static DEFINE_MUTEX(nlm_host_mutex);
static void nlm_gc_hosts(void);
static void nlm_gc_hosts(struct net *net);
struct nlm_lookup_host_info {
const int server; /* search for server|client */
@ -172,6 +173,7 @@ static struct nlm_host *nlm_alloc_host(struct nlm_lookup_host_info *ni,
static void nlm_destroy_host_locked(struct nlm_host *host)
{
struct rpc_clnt *clnt;
struct lockd_net *ln = net_generic(host->net, lockd_net_id);
dprintk("lockd: destroy host %s\n", host->h_name);
@ -188,6 +190,7 @@ static void nlm_destroy_host_locked(struct nlm_host *host)
rpc_shutdown_client(clnt);
kfree(host);
ln->nrhosts--;
nrhosts--;
}
@ -228,6 +231,7 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
struct hlist_node *pos;
struct nlm_host *host;
struct nsm_handle *nsm = NULL;
struct lockd_net *ln = net_generic(net, lockd_net_id);
dprintk("lockd: %s(host='%s', vers=%u, proto=%s)\n", __func__,
(hostname ? hostname : "<none>"), version,
@ -262,6 +266,7 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
goto out;
hlist_add_head(&host->h_hash, chain);
ln->nrhosts++;
nrhosts++;
dprintk("lockd: %s created host %s (%s)\n", __func__,
@ -326,7 +331,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
struct nsm_handle *nsm = NULL;
struct sockaddr *src_sap = svc_daddr(rqstp);
size_t src_len = rqstp->rq_daddrlen;
struct net *net = rqstp->rq_xprt->xpt_net;
struct net *net = SVC_NET(rqstp);
struct nlm_lookup_host_info ni = {
.server = 1,
.sap = svc_addr(rqstp),
@ -337,6 +342,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
.hostname_len = hostname_len,
.net = net,
};
struct lockd_net *ln = net_generic(net, lockd_net_id);
dprintk("lockd: %s(host='%*s', vers=%u, proto=%s)\n", __func__,
(int)hostname_len, hostname, rqstp->rq_vers,
@ -344,8 +350,8 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
mutex_lock(&nlm_host_mutex);
if (time_after_eq(jiffies, next_gc))
nlm_gc_hosts();
if (time_after_eq(jiffies, ln->next_gc))
nlm_gc_hosts(net);
chain = &nlm_server_hosts[nlm_hash_address(ni.sap)];
hlist_for_each_entry(host, pos, chain, h_hash) {
@ -382,6 +388,7 @@ struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
memcpy(nlm_srcaddr(host), src_sap, src_len);
host->h_srcaddrlen = src_len;
hlist_add_head(&host->h_hash, chain);
ln->nrhosts++;
nrhosts++;
dprintk("lockd: %s created host %s (%s)\n",
@ -565,6 +572,35 @@ void nlm_host_rebooted(const struct nlm_reboot *info)
nsm_release(nsm);
}
static void nlm_complain_hosts(struct net *net)
{
struct hlist_head *chain;
struct hlist_node *pos;
struct nlm_host *host;
if (net) {
struct lockd_net *ln = net_generic(net, lockd_net_id);
if (ln->nrhosts == 0)
return;
printk(KERN_WARNING "lockd: couldn't shutdown host module for net %p!\n", net);
dprintk("lockd: %lu hosts left in net %p:\n", ln->nrhosts, net);
} else {
if (nrhosts == 0)
return;
printk(KERN_WARNING "lockd: couldn't shutdown host module!\n");
dprintk("lockd: %lu hosts left:\n", nrhosts);
}
for_each_host(host, pos, chain, nlm_server_hosts) {
if (net && host->net != net)
continue;
dprintk(" %s (cnt %d use %d exp %ld net %p)\n",
host->h_name, atomic_read(&host->h_count),
host->h_inuse, host->h_expires, host->net);
}
}
void
nlm_shutdown_hosts_net(struct net *net)
{
@ -572,11 +608,10 @@ nlm_shutdown_hosts_net(struct net *net)
struct hlist_node *pos;
struct nlm_host *host;
dprintk("lockd: shutting down host module\n");
mutex_lock(&nlm_host_mutex);
/* First, make all hosts eligible for gc */
dprintk("lockd: nuking all hosts...\n");
dprintk("lockd: nuking all hosts in net %p...\n", net);
for_each_host(host, pos, chain, nlm_server_hosts) {
if (net && host->net != net)
continue;
@ -588,8 +623,10 @@ nlm_shutdown_hosts_net(struct net *net)
}
/* Then, perform a garbage collection pass */
nlm_gc_hosts();
nlm_gc_hosts(net);
mutex_unlock(&nlm_host_mutex);
nlm_complain_hosts(net);
}
/*
@ -599,22 +636,8 @@ nlm_shutdown_hosts_net(struct net *net)
void
nlm_shutdown_hosts(void)
{
struct hlist_head *chain;
struct hlist_node *pos;
struct nlm_host *host;
dprintk("lockd: shutting down host module\n");
nlm_shutdown_hosts_net(NULL);
/* complain if any hosts are left */
if (nrhosts != 0) {
printk(KERN_WARNING "lockd: couldn't shutdown host module!\n");
dprintk("lockd: %lu hosts left:\n", nrhosts);
for_each_host(host, pos, chain, nlm_server_hosts) {
dprintk(" %s (cnt %d use %d exp %ld net %p)\n",
host->h_name, atomic_read(&host->h_count),
host->h_inuse, host->h_expires, host->net);
}
}
}
/*
@ -623,30 +646,39 @@ nlm_shutdown_hosts(void)
* mark & sweep for resources held by remote clients.
*/
static void
nlm_gc_hosts(void)
nlm_gc_hosts(struct net *net)
{
struct hlist_head *chain;
struct hlist_node *pos, *next;
struct nlm_host *host;
dprintk("lockd: host garbage collection\n");
for_each_host(host, pos, chain, nlm_server_hosts)
dprintk("lockd: host garbage collection for net %p\n", net);
for_each_host(host, pos, chain, nlm_server_hosts) {
if (net && host->net != net)
continue;
host->h_inuse = 0;
}
/* Mark all hosts that hold locks, blocks or shares */
nlmsvc_mark_resources();
nlmsvc_mark_resources(net);
for_each_host_safe(host, pos, next, chain, nlm_server_hosts) {
if (net && host->net != net)
continue;
if (atomic_read(&host->h_count) || host->h_inuse
|| time_before(jiffies, host->h_expires)) {
dprintk("nlm_gc_hosts skipping %s "
"(cnt %d use %d exp %ld)\n",
"(cnt %d use %d exp %ld net %p)\n",
host->h_name, atomic_read(&host->h_count),
host->h_inuse, host->h_expires);
host->h_inuse, host->h_expires, host->net);
continue;
}
nlm_destroy_host_locked(host);
}
next_gc = jiffies + NLM_HOST_COLLECT;
if (net) {
struct lockd_net *ln = net_generic(net, lockd_net_id);
ln->next_gc = jiffies + NLM_HOST_COLLECT;
}
}

7
fs/lockd/netns.h
View File

@ -1,10 +1,17 @@
#ifndef __LOCKD_NETNS_H__
#define __LOCKD_NETNS_H__
#include <linux/fs.h>
#include <net/netns/generic.h>
struct lockd_net {
unsigned int nlmsvc_users;
unsigned long next_gc;
unsigned long nrhosts;
struct delayed_work grace_period_end;
struct lock_manager lockd_manager;
struct list_head grace_list;
};
extern int lockd_net_id;

43
fs/lockd/svc.c
View File

@ -87,32 +87,36 @@ static unsigned long get_lockd_grace_period(void)
return nlm_timeout * 5 * HZ;
}
static struct lock_manager lockd_manager = {
};
static void grace_ender(struct work_struct *not_used)
static void grace_ender(struct work_struct *grace)
{
locks_end_grace(&lockd_manager);
struct delayed_work *dwork = container_of(grace, struct delayed_work,
work);
struct lockd_net *ln = container_of(dwork, struct lockd_net,
grace_period_end);
locks_end_grace(&ln->lockd_manager);
}
static DECLARE_DELAYED_WORK(grace_period_end, grace_ender);
static void set_grace_period(void)
static void set_grace_period(struct net *net)
{
unsigned long grace_period = get_lockd_grace_period();
struct lockd_net *ln = net_generic(net, lockd_net_id);
locks_start_grace(&lockd_manager);
cancel_delayed_work_sync(&grace_period_end);
schedule_delayed_work(&grace_period_end, grace_period);
locks_start_grace(net, &ln->lockd_manager);
cancel_delayed_work_sync(&ln->grace_period_end);
schedule_delayed_work(&ln->grace_period_end, grace_period);
}
static void restart_grace(void)
{
if (nlmsvc_ops) {
cancel_delayed_work_sync(&grace_period_end);
locks_end_grace(&lockd_manager);
struct net *net = &init_net;
struct lockd_net *ln = net_generic(net, lockd_net_id);
cancel_delayed_work_sync(&ln->grace_period_end);
locks_end_grace(&ln->lockd_manager);
nlmsvc_invalidate_all();
set_grace_period();
set_grace_period(net);
}
}
@ -137,8 +141,6 @@ lockd(void *vrqstp)
nlm_timeout = LOCKD_DFLT_TIMEO;
nlmsvc_timeout = nlm_timeout * HZ;
set_grace_period();
/*
* The main request loop. We don't terminate until the last
* NFS mount or NFS daemon has gone away.
@ -184,8 +186,6 @@ lockd(void *vrqstp)
svc_process(rqstp);
}
flush_signals(current);
cancel_delayed_work_sync(&grace_period_end);
locks_end_grace(&lockd_manager);
if (nlmsvc_ops)
nlmsvc_invalidate_all();
nlm_shutdown_hosts();
@ -266,6 +266,7 @@ static int lockd_up_net(struct svc_serv *serv, struct net *net)
error = make_socks(serv, net);
if (error < 0)
goto err_socks;
set_grace_period(net);
dprintk("lockd_up_net: per-net data created; net=%p\n", net);
return 0;
@ -283,6 +284,8 @@ static void lockd_down_net(struct svc_serv *serv, struct net *net)
if (ln->nlmsvc_users) {
if (--ln->nlmsvc_users == 0) {
nlm_shutdown_hosts_net(net);
cancel_delayed_work_sync(&ln->grace_period_end);
locks_end_grace(&ln->lockd_manager);
svc_shutdown_net(serv, net);
dprintk("lockd_down_net: per-net data destroyed; net=%p\n", net);
}
@ -589,6 +592,10 @@ module_param(nlm_max_connections, uint, 0644);
static int lockd_init_net(struct net *net)
{
struct lockd_net *ln = net_generic(net, lockd_net_id);
INIT_DELAYED_WORK(&ln->grace_period_end, grace_ender);
INIT_LIST_HEAD(&ln->grace_list);
return 0;
}

13
fs/lockd/svc4proc.c
View File

@ -11,6 +11,7 @@
#include <linux/time.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
#include <linux/sunrpc/svc_xprt.h>
#define NLMDBG_FACILITY NLMDBG_CLIENT
@ -151,7 +152,7 @@ nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(SVC_NET(rqstp))) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -161,7 +162,7 @@ nlm4svc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Try to cancel request. */
resp->status = nlmsvc_cancel_blocked(file, &argp->lock);
resp->status = nlmsvc_cancel_blocked(SVC_NET(rqstp), file, &argp->lock);
dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
nlmsvc_release_host(host);
@ -184,7 +185,7 @@ nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(SVC_NET(rqstp))) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -194,7 +195,7 @@ nlm4svc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now try to remove the lock */
resp->status = nlmsvc_unlock(file, &argp->lock);
resp->status = nlmsvc_unlock(SVC_NET(rqstp), file, &argp->lock);
dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
nlmsvc_release_host(host);
@ -321,7 +322,7 @@ nlm4svc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace() && !argp->reclaim) {
if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -354,7 +355,7 @@ nlm4svc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(SVC_NET(rqstp))) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}

16
fs/lockd/svclock.c
View File

@ -26,7 +26,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svc_xprt.h>
#include <linux/lockd/nlm.h>
#include <linux/lockd/lockd.h>
#include <linux/kthread.h>
@ -447,11 +447,11 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
goto out;
}
if (locks_in_grace() && !reclaim) {
if (locks_in_grace(SVC_NET(rqstp)) && !reclaim) {
ret = nlm_lck_denied_grace_period;
goto out;
}
if (reclaim && !locks_in_grace()) {
if (reclaim && !locks_in_grace(SVC_NET(rqstp))) {
ret = nlm_lck_denied_grace_period;
goto out;
}
@ -559,7 +559,7 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
goto out;
}
if (locks_in_grace()) {
if (locks_in_grace(SVC_NET(rqstp))) {
ret = nlm_lck_denied_grace_period;
goto out;
}
@ -603,7 +603,7 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
* must be removed.
*/
__be32
nlmsvc_unlock(struct nlm_file *file, struct nlm_lock *lock)
nlmsvc_unlock(struct net *net, struct nlm_file *file, struct nlm_lock *lock)
{
int error;
@ -615,7 +615,7 @@ nlmsvc_unlock(struct nlm_file *file, struct nlm_lock *lock)
(long long)lock->fl.fl_end);
/* First, cancel any lock that might be there */
nlmsvc_cancel_blocked(file, lock);
nlmsvc_cancel_blocked(net, file, lock);
lock->fl.fl_type = F_UNLCK;
error = vfs_lock_file(file->f_file, F_SETLK, &lock->fl, NULL);
@ -631,7 +631,7 @@ nlmsvc_unlock(struct nlm_file *file, struct nlm_lock *lock)
* The calling procedure must check whether the file can be closed.
*/
__be32
nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
nlmsvc_cancel_blocked(struct net *net, struct nlm_file *file, struct nlm_lock *lock)
{
struct nlm_block *block;
int status = 0;
@ -643,7 +643,7 @@ nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
(long long)lock->fl.fl_start,
(long long)lock->fl.fl_end);
if (locks_in_grace())
if (locks_in_grace(net))
return nlm_lck_denied_grace_period;
mutex_lock(&file->f_mutex);

15
fs/lockd/svcproc.c
View File

@ -11,6 +11,7 @@
#include <linux/time.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
#include <linux/sunrpc/svc_xprt.h>
#define NLMDBG_FACILITY NLMDBG_CLIENT
@ -175,13 +176,14 @@ nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
struct net *net = SVC_NET(rqstp);
dprintk("lockd: CANCEL called\n");
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(net)) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -191,7 +193,7 @@ nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Try to cancel request. */
resp->status = cast_status(nlmsvc_cancel_blocked(file, &argp->lock));
resp->status = cast_status(nlmsvc_cancel_blocked(net, file, &argp->lock));
dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
nlmsvc_release_host(host);
@ -208,13 +210,14 @@ nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
{
struct nlm_host *host;
struct nlm_file *file;
struct net *net = SVC_NET(rqstp);
dprintk("lockd: UNLOCK called\n");
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(net)) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -224,7 +227,7 @@ nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now try to remove the lock */
resp->status = cast_status(nlmsvc_unlock(file, &argp->lock));
resp->status = cast_status(nlmsvc_unlock(net, file, &argp->lock));
dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
nlmsvc_release_host(host);
@ -361,7 +364,7 @@ nlmsvc_proc_share(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace() && !argp->reclaim) {
if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
@ -394,7 +397,7 @@ nlmsvc_proc_unshare(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace()) {
if (locks_in_grace(SVC_NET(rqstp))) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}

19
fs/lockd/svcsubs.c
View File

@ -309,7 +309,8 @@ nlm_release_file(struct nlm_file *file)
* Helpers function for resource traversal
*
* nlmsvc_mark_host:
* used by the garbage collector; simply sets h_inuse.
* used by the garbage collector; simply sets h_inuse only for those
* hosts, which passed network check.
* Always returns 0.
*
* nlmsvc_same_host:
@ -320,12 +321,15 @@ nlm_release_file(struct nlm_file *file)
* returns 1 iff the host is a client.
* Used by nlmsvc_invalidate_all
*/
static int
nlmsvc_mark_host(void *data, struct nlm_host *dummy)
nlmsvc_mark_host(void *data, struct nlm_host *hint)
{
struct nlm_host *host = data;
host->h_inuse = 1;
if ((hint->net == NULL) ||
(host->net == hint->net))
host->h_inuse = 1;
return 0;
}
@ -358,10 +362,13 @@ nlmsvc_is_client(void *data, struct nlm_host *dummy)
* Mark all hosts that still hold resources
*/
void
nlmsvc_mark_resources(void)
nlmsvc_mark_resources(struct net *net)
{
dprintk("lockd: nlmsvc_mark_resources\n");
nlm_traverse_files(NULL, nlmsvc_mark_host, NULL);
struct nlm_host hint;
dprintk("lockd: nlmsvc_mark_resources for net %p\n", net);
hint.net = net;
nlm_traverse_files(&hint, nlmsvc_mark_host, NULL);
}
/*

28
fs/locks.c
View File

@ -427,18 +427,8 @@ static void lease_break_callback(struct file_lock *fl)
kill_fasync(&fl->fl_fasync, SIGIO, POLL_MSG);
}
static void lease_release_private_callback(struct file_lock *fl)
{
if (!fl->fl_file)
return;
f_delown(fl->fl_file);
fl->fl_file->f_owner.signum = 0;
}
static const struct lock_manager_operations lease_manager_ops = {
.lm_break = lease_break_callback,
.lm_release_private = lease_release_private_callback,
.lm_change = lease_modify,
};
@ -580,12 +570,6 @@ static void locks_delete_lock(struct file_lock **thisfl_p)
fl->fl_next = NULL;
list_del_init(&fl->fl_link);
fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync);
if (fl->fl_fasync != NULL) {
printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
fl->fl_fasync = NULL;
}
if (fl->fl_nspid) {
put_pid(fl->fl_nspid);
fl->fl_nspid = NULL;
@ -1155,8 +1139,18 @@ int lease_modify(struct file_lock **before, int arg)
return error;
lease_clear_pending(fl, arg);
locks_wake_up_blocks(fl);
if (arg == F_UNLCK)
if (arg == F_UNLCK) {
struct file *filp = fl->fl_file;
f_delown(filp);
filp->f_owner.signum = 0;
fasync_helper(0, fl->fl_file, 0, &fl->fl_fasync);
if (fl->fl_fasync != NULL) {
printk(KERN_ERR "locks_delete_lock: fasync == %p\n", fl->fl_fasync);
fl->fl_fasync = NULL;
}
locks_delete_lock(before);
}
return 0;
}

4
fs/nfs/callback_xdr.c
View File

@ -863,7 +863,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
.drc_status = 0,
.clp = NULL,
.slotid = NFS4_NO_SLOT,
.net = rqstp->rq_xprt->xpt_net,
.net = SVC_NET(rqstp),
};
unsigned int nops = 0;
@ -879,7 +879,7 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp, void *argp, void *r
return rpc_garbage_args;
if (hdr_arg.minorversion == 0) {
cps.clp = nfs4_find_client_ident(rqstp->rq_xprt->xpt_net, hdr_arg.cb_ident);
cps.clp = nfs4_find_client_ident(SVC_NET(rqstp), hdr_arg.cb_ident);
if (!cps.clp || !check_gss_callback_principal(cps.clp, rqstp))
return rpc_drop_reply;
}

10
fs/nfsd/export.c
View File

@ -398,7 +398,7 @@ fsloc_parse(char **mesg, char *buf, struct nfsd4_fs_locations *fsloc)
int migrated, i, err;
/* listsize */
err = get_int(mesg, &fsloc->locations_count);
err = get_uint(mesg, &fsloc->locations_count);
if (err)
return err;
if (fsloc->locations_count > MAX_FS_LOCATIONS)
@ -456,7 +456,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
return -EINVAL;
for (f = exp->ex_flavors; f < exp->ex_flavors + listsize; f++) {
err = get_int(mesg, &f->pseudoflavor);
err = get_uint(mesg, &f->pseudoflavor);
if (err)
return err;
/*
@ -465,7 +465,7 @@ static int secinfo_parse(char **mesg, char *buf, struct svc_export *exp)
* problem at export time instead of when a client fails
* to authenticate.
*/
err = get_int(mesg, &f->flags);
err = get_uint(mesg, &f->flags);
if (err)
return err;
/* Only some flags are allowed to differ between flavors: */
@ -929,7 +929,7 @@ struct svc_export *
rqst_exp_get_by_name(struct svc_rqst *rqstp, struct path *path)
{
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct cache_detail *cd = nn->svc_export_cache;
if (rqstp->rq_client == NULL)
@ -960,7 +960,7 @@ struct svc_export *
rqst_exp_find(struct svc_rqst *rqstp, int fsid_type, u32 *fsidv)
{
struct svc_export *gssexp, *exp = ERR_PTR(-ENOENT);
struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
struct cache_detail *cd = nn->svc_export_cache;
if (rqstp->rq_client == NULL)

4
fs/nfsd/netns.h
View File

@ -34,6 +34,10 @@ struct nfsd_net {
struct cache_detail *idtoname_cache;
struct cache_detail *nametoid_cache;
struct lock_manager nfsd4_manager;
bool grace_ended;
time_t boot_time;
};
extern int nfsd_net_id;

1
fs/nfsd/nfs4callback.c
View File

@ -756,7 +756,6 @@ static void do_probe_callback(struct nfs4_client *clp)
*/
void nfsd4_probe_callback(struct nfs4_client *clp)
{
/* XXX: atomicity? Also, should we be using cl_flags? */
clp->cl_cb_state = NFSD4_CB_UNKNOWN;
set_bit(NFSD4_CLIENT_CB_UPDATE, &clp->cl_flags);
do_probe_callback(clp);

4
fs/nfsd/nfs4idmap.c
View File

@ -546,7 +546,7 @@ idmap_name_to_id(struct svc_rqst *rqstp, int type, const char *name, u32 namelen
.type = type,
};
int ret;
struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
if (namelen + 1 > sizeof(key.name))
return nfserr_badowner;
@ -571,7 +571,7 @@ idmap_id_to_name(struct svc_rqst *rqstp, int type, uid_t id, char *name)
.type = type,
};
int ret;
struct nfsd_net *nn = net_generic(rqstp->rq_xprt->xpt_net, nfsd_net_id);
struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
strlcpy(key.authname, rqst_authname(rqstp), sizeof(key.authname));
ret = idmap_lookup(rqstp, idtoname_lookup, &key, nn->idtoname_cache, &item);

18
fs/nfsd/nfs4proc.c
View File

@ -354,10 +354,10 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
/* Openowner is now set, so sequence id will get bumped. Now we need
* these checks before we do any creates: */
status = nfserr_grace;
if (locks_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
if (locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
goto out;
status = nfserr_no_grace;
if (!locks_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
if (!locks_in_grace(SVC_NET(rqstp)) && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
goto out;
switch (open->op_claim_type) {
@ -686,7 +686,8 @@ nfsd4_read(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
/* check stateid */
if ((status = nfs4_preprocess_stateid_op(cstate, &read->rd_stateid,
if ((status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
cstate, &read->rd_stateid,
RD_STATE, &read->rd_filp))) {
dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
goto out;
@ -741,7 +742,7 @@ nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{
__be32 status;
if (locks_in_grace())
if (locks_in_grace(SVC_NET(rqstp)))
return nfserr_grace;
status = nfsd_unlink(rqstp, &cstate->current_fh, 0,
remove->rm_name, remove->rm_namelen);
@ -760,8 +761,8 @@ nfsd4_rename(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (!cstate->save_fh.fh_dentry)
return status;
if (locks_in_grace() && !(cstate->save_fh.fh_export->ex_flags
& NFSEXP_NOSUBTREECHECK))
if (locks_in_grace(SVC_NET(rqstp)) &&
!(cstate->save_fh.fh_export->ex_flags & NFSEXP_NOSUBTREECHECK))
return nfserr_grace;
status = nfsd_rename(rqstp, &cstate->save_fh, rename->rn_sname,
rename->rn_snamelen, &cstate->current_fh,
@ -845,7 +846,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (setattr->sa_iattr.ia_valid & ATTR_SIZE) {
nfs4_lock_state();
status = nfs4_preprocess_stateid_op(cstate,
status = nfs4_preprocess_stateid_op(SVC_NET(rqstp), cstate,
&setattr->sa_stateid, WR_STATE, NULL);
nfs4_unlock_state();
if (status) {
@ -890,7 +891,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return nfserr_inval;
nfs4_lock_state();
status = nfs4_preprocess_stateid_op(cstate, stateid, WR_STATE, &filp);
status = nfs4_preprocess_stateid_op(SVC_NET(rqstp),
cstate, stateid, WR_STATE, &filp);
if (filp)
get_file(filp);
nfs4_unlock_state();

201
fs/nfsd/nfs4state.c
View File

@ -38,18 +38,21 @@
#include <linux/namei.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
#include <linux/ratelimit.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/clnt.h>
#include "xdr4.h"
#include "vfs.h"
#include "current_stateid.h"
#include "fault_inject.h"
#include "netns.h"
#define NFSDDBG_FACILITY NFSDDBG_PROC
/* Globals */
time_t nfsd4_lease = 90; /* default lease time */
time_t nfsd4_grace = 90;
static time_t boot_time;
#define all_ones {{~0,~0},~0}
static const stateid_t one_stateid = {
@ -862,6 +865,11 @@ static __be32 nfsd4_new_conn(struct svc_rqst *rqstp, struct nfsd4_session *ses,
if (ret)
/* oops; xprt is already down: */
nfsd4_conn_lost(&conn->cn_xpt_user);
if (ses->se_client->cl_cb_state == NFSD4_CB_DOWN &&
dir & NFS4_CDFC4_BACK) {
/* callback channel may be back up */
nfsd4_probe_callback(ses->se_client);
}
return nfs_ok;
}
@ -1047,12 +1055,12 @@ renew_client(struct nfs4_client *clp)
/* SETCLIENTID and SETCLIENTID_CONFIRM Helper functions */
static int
STALE_CLIENTID(clientid_t *clid)
STALE_CLIENTID(clientid_t *clid, struct nfsd_net *nn)
{
if (clid->cl_boot == boot_time)
if (clid->cl_boot == nn->boot_time)
return 0;
dprintk("NFSD stale clientid (%08x/%08x) boot_time %08lx\n",
clid->cl_boot, clid->cl_id, boot_time);
clid->cl_boot, clid->cl_id, nn->boot_time);
return 1;
}
@ -1215,7 +1223,7 @@ static bool groups_equal(struct group_info *g1, struct group_info *g2)
return true;
}
static int
static bool
same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
{
if ((cr1->cr_flavor != cr2->cr_flavor)
@ -1227,14 +1235,15 @@ same_creds(struct svc_cred *cr1, struct svc_cred *cr2)
return true;
if (!cr1->cr_principal || !cr2->cr_principal)
return false;
return 0 == strcmp(cr1->cr_principal, cr1->cr_principal);
return 0 == strcmp(cr1->cr_principal, cr2->cr_principal);
}
static void gen_clid(struct nfs4_client *clp)
{
static u32 current_clientid = 1;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
clp->cl_clientid.cl_boot = boot_time;
clp->cl_clientid.cl_boot = nn->boot_time;
clp->cl_clientid.cl_id = current_clientid++;
}
@ -2217,8 +2226,9 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp,
nfs4_verifier confirm = setclientid_confirm->sc_confirm;
clientid_t * clid = &setclientid_confirm->sc_clientid;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (STALE_CLIENTID(clid))
if (STALE_CLIENTID(clid, nn))
return nfserr_stale_clientid;
nfs4_lock_state();
@ -2577,8 +2587,9 @@ nfsd4_process_open1(struct nfsd4_compound_state *cstate,
unsigned int strhashval;
struct nfs4_openowner *oo = NULL;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (STALE_CLIENTID(&open->op_clientid))
if (STALE_CLIENTID(&open->op_clientid, nn))
return nfserr_stale_clientid;
/*
* In case we need it later, after we've already created the
@ -2876,7 +2887,8 @@ static void nfsd4_open_deleg_none_ext(struct nfsd4_open *open, int status)
* Attempt to hand out a delegation.
*/
static void
nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_ol_stateid *stp)
nfs4_open_delegation(struct net *net, struct svc_fh *fh,
struct nfsd4_open *open, struct nfs4_ol_stateid *stp)
{
struct nfs4_delegation *dp;
struct nfs4_openowner *oo = container_of(stp->st_stateowner, struct nfs4_openowner, oo_owner);
@ -2897,7 +2909,7 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_ol_
case NFS4_OPEN_CLAIM_NULL:
/* Let's not give out any delegations till everyone's
* had the chance to reclaim theirs.... */
if (locks_in_grace())
if (locks_in_grace(net))
goto out;
if (!cb_up || !(oo->oo_flags & NFS4_OO_CONFIRMED))
goto out;
@ -3005,16 +3017,14 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
goto out;
} else {
status = nfs4_get_vfs_file(rqstp, fp, current_fh, open);
if (status)
goto out;
status = nfsd4_truncate(rqstp, current_fh, open);
if (status)
goto out;
stp = open->op_stp;
open->op_stp = NULL;
init_open_stateid(stp, fp, open);
status = nfsd4_truncate(rqstp, current_fh, open);
if (status) {
release_open_stateid(stp);
goto out;
}
}
update_stateid(&stp->st_stid.sc_stateid);
memcpy(&open->op_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
@ -3033,7 +3043,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
* Attempt to hand out a delegation. No error return, because the
* OPEN succeeds even if we fail.
*/
nfs4_open_delegation(current_fh, open, stp);
nfs4_open_delegation(SVC_NET(rqstp), current_fh, open, stp);
nodeleg:
status = nfs_ok;
@ -3087,12 +3097,13 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
{
struct nfs4_client *clp;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
nfs4_lock_state();
dprintk("process_renew(%08x/%08x): starting\n",
clid->cl_boot, clid->cl_id);
status = nfserr_stale_clientid;
if (STALE_CLIENTID(clid))
if (STALE_CLIENTID(clid, nn))
goto out;
clp = find_confirmed_client(clid);
status = nfserr_expired;
@ -3111,22 +3122,19 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
return status;
}
static struct lock_manager nfsd4_manager = {
};
static bool grace_ended;
static void
nfsd4_end_grace(void)
nfsd4_end_grace(struct net *net)
{
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
/* do nothing if grace period already ended */
if (grace_ended)
if (nn->grace_ended)
return;
dprintk("NFSD: end of grace period\n");
grace_ended = true;
nfsd4_record_grace_done(&init_net, boot_time);
locks_end_grace(&nfsd4_manager);
nn->grace_ended = true;
nfsd4_record_grace_done(net, nn->boot_time);
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
@ -3149,7 +3157,7 @@ nfs4_laundromat(void)
nfs4_lock_state();
dprintk("NFSD: laundromat service - starting\n");
nfsd4_end_grace();
nfsd4_end_grace(&init_net);
INIT_LIST_HEAD(&reaplist);
spin_lock(&client_lock);
list_for_each_safe(pos, next, &client_lru) {
@ -3231,9 +3239,9 @@ static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *s
}
static int
STALE_STATEID(stateid_t *stateid)
STALE_STATEID(stateid_t *stateid, struct nfsd_net *nn)
{
if (stateid->si_opaque.so_clid.cl_boot == boot_time)
if (stateid->si_opaque.so_clid.cl_boot == nn->boot_time)
return 0;
dprintk("NFSD: stale stateid " STATEID_FMT "!\n",
STATEID_VAL(stateid));
@ -3273,11 +3281,11 @@ __be32 nfs4_check_openmode(struct nfs4_ol_stateid *stp, int flags)
}
static inline __be32
check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags)
check_special_stateids(struct net *net, svc_fh *current_fh, stateid_t *stateid, int flags)
{
if (ONE_STATEID(stateid) && (flags & RD_STATE))
return nfs_ok;
else if (locks_in_grace()) {
else if (locks_in_grace(net)) {
/* Answer in remaining cases depends on existence of
* conflicting state; so we must wait out the grace period. */
return nfserr_grace;
@ -3294,9 +3302,9 @@ check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags)
* that are not able to provide mandatory locking.
*/
static inline int
grace_disallows_io(struct inode *inode)
grace_disallows_io(struct net *net, struct inode *inode)
{
return locks_in_grace() && mandatory_lock(inode);
return locks_in_grace(net) && mandatory_lock(inode);
}
/* Returns true iff a is later than b: */
@ -3333,18 +3341,26 @@ static __be32 check_stateid_generation(stateid_t *in, stateid_t *ref, bool has_s
return nfserr_old_stateid;
}
__be32 nfs4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
static __be32 nfsd4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
{
struct nfs4_stid *s;
struct nfs4_ol_stateid *ols;
__be32 status;
if (STALE_STATEID(stateid))
return nfserr_stale_stateid;
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return nfserr_bad_stateid;
/* Client debugging aid. */
if (!same_clid(&stateid->si_opaque.so_clid, &cl->cl_clientid)) {
char addr_str[INET6_ADDRSTRLEN];
rpc_ntop((struct sockaddr *)&cl->cl_addr, addr_str,
sizeof(addr_str));
pr_warn_ratelimited("NFSD: client %s testing state ID "
"with incorrect client ID\n", addr_str);
return nfserr_bad_stateid;
}
s = find_stateid(cl, stateid);
if (!s)
return nfserr_stale_stateid;
return nfserr_bad_stateid;
status = check_stateid_generation(stateid, &s->sc_stateid, 1);
if (status)
return status;
@ -3360,10 +3376,11 @@ __be32 nfs4_validate_stateid(struct nfs4_client *cl, stateid_t *stateid)
static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, struct nfs4_stid **s)
{
struct nfs4_client *cl;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return nfserr_bad_stateid;
if (STALE_STATEID(stateid))
if (STALE_STATEID(stateid, nn))
return nfserr_stale_stateid;
cl = find_confirmed_client(&stateid->si_opaque.so_clid);
if (!cl)
@ -3379,7 +3396,7 @@ static __be32 nfsd4_lookup_stateid(stateid_t *stateid, unsigned char typemask, s
* Checks for stateid operations
*/
__be32
nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
nfs4_preprocess_stateid_op(struct net *net, struct nfsd4_compound_state *cstate,
stateid_t *stateid, int flags, struct file **filpp)
{
struct nfs4_stid *s;
@ -3392,11 +3409,11 @@ nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
if (filpp)
*filpp = NULL;
if (grace_disallows_io(ino))
if (grace_disallows_io(net, ino))
return nfserr_grace;
if (ZERO_STATEID(stateid) || ONE_STATEID(stateid))
return check_special_stateids(current_fh, stateid, flags);
return check_special_stateids(net, current_fh, stateid, flags);
status = nfsd4_lookup_stateid(stateid, NFS4_DELEG_STID|NFS4_OPEN_STID|NFS4_LOCK_STID, &s);
if (status)
@ -3463,7 +3480,8 @@ nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
list_for_each_entry(stateid, &test_stateid->ts_stateid_list, ts_id_list)
stateid->ts_id_status = nfs4_validate_stateid(cl, &stateid->ts_id_stateid);
stateid->ts_id_status =
nfsd4_validate_stateid(cl, &stateid->ts_id_stateid);
nfs4_unlock_state();
return nfs_ok;
@ -3750,12 +3768,19 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfsd4_close_open_stateid(stp);
oo->oo_last_closed_stid = stp;
/* place unused nfs4_stateowners on so_close_lru list to be
* released by the laundromat service after the lease period
* to enable us to handle CLOSE replay
*/
if (list_empty(&oo->oo_owner.so_stateids))
move_to_close_lru(oo);
if (list_empty(&oo->oo_owner.so_stateids)) {
if (cstate->minorversion) {
release_openowner(oo);
cstate->replay_owner = NULL;
} else {
/*
* In the 4.0 case we need to keep the owners around a
* little while to handle CLOSE replay.
*/
if (list_empty(&oo->oo_owner.so_stateids))
move_to_close_lru(oo);
}
}
out:
if (!cstate->replay_owner)
nfs4_unlock_state();
@ -4027,6 +4052,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
bool new_state = false;
int lkflg;
int err;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
dprintk("NFSD: nfsd4_lock: start=%Ld length=%Ld\n",
(long long) lock->lk_offset,
@ -4044,11 +4070,6 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
if (lock->lk_is_new) {
/*
* Client indicates that this is a new lockowner.
* Use open owner and open stateid to create lock owner and
* lock stateid.
*/
struct nfs4_ol_stateid *open_stp = NULL;
if (nfsd4_has_session(cstate))
@ -4058,7 +4079,7 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
sizeof(clientid_t));
status = nfserr_stale_clientid;
if (STALE_CLIENTID(&lock->lk_new_clientid))
if (STALE_CLIENTID(&lock->lk_new_clientid, nn))
goto out;
/* validate and update open stateid and open seqid */
@ -4075,17 +4096,13 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
status = lookup_or_create_lock_state(cstate, open_stp, lock,
&lock_stp, &new_state);
if (status)
goto out;
} else {
/* lock (lock owner + lock stateid) already exists */
} else
status = nfs4_preprocess_seqid_op(cstate,
lock->lk_old_lock_seqid,
&lock->lk_old_lock_stateid,
NFS4_LOCK_STID, &lock_stp);
if (status)
goto out;
}
if (status)
goto out;
lock_sop = lockowner(lock_stp->st_stateowner);
lkflg = setlkflg(lock->lk_type);
@ -4094,10 +4111,10 @@ nfsd4_lock(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
goto out;
status = nfserr_grace;
if (locks_in_grace() && !lock->lk_reclaim)
if (locks_in_grace(SVC_NET(rqstp)) && !lock->lk_reclaim)
goto out;
status = nfserr_no_grace;
if (!locks_in_grace() && lock->lk_reclaim)
if (!locks_in_grace(SVC_NET(rqstp)) && lock->lk_reclaim)
goto out;
locks_init_lock(&file_lock);
@ -4196,8 +4213,9 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct file_lock file_lock;
struct nfs4_lockowner *lo;
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
if (locks_in_grace())
if (locks_in_grace(SVC_NET(rqstp)))
return nfserr_grace;
if (check_lock_length(lockt->lt_offset, lockt->lt_length))
@ -4206,7 +4224,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfs4_lock_state();
status = nfserr_stale_clientid;
if (!nfsd4_has_session(cstate) && STALE_CLIENTID(&lockt->lt_clientid))
if (!nfsd4_has_session(cstate) && STALE_CLIENTID(&lockt->lt_clientid, nn))
goto out;
if ((status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0)))
@ -4355,6 +4373,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
struct list_head matches;
unsigned int hashval = ownerstr_hashval(clid->cl_id, owner);
__be32 status;
struct nfsd_net *nn = net_generic(&init_net, nfsd_net_id);
dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
clid->cl_boot, clid->cl_id);
@ -4362,7 +4381,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp,
/* XXX check for lease expiration */
status = nfserr_stale_clientid;
if (STALE_CLIENTID(clid))
if (STALE_CLIENTID(clid, nn))
return status;
nfs4_lock_state();
@ -4564,7 +4583,7 @@ void nfsd_forget_openowners(u64 num)
printk(KERN_INFO "NFSD: Forgot %d open owners", count);
}
int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegation *))
int nfsd_process_n_delegations(u64 num, struct list_head *list)
{
int i, count = 0;
struct nfs4_file *fp, *fnext;
@ -4573,7 +4592,7 @@ int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegatio
for (i = 0; i < FILE_HASH_SIZE; i++) {
list_for_each_entry_safe(fp, fnext, &file_hashtbl[i], fi_hash) {
list_for_each_entry_safe(dp, dnext, &fp->fi_delegations, dl_perfile) {
deleg_func(dp);
list_move(&dp->dl_recall_lru, list);
if (++count == num)
return count;
}
@ -4586,9 +4605,16 @@ int nfsd_process_n_delegations(u64 num, void (*deleg_func)(struct nfs4_delegatio
void nfsd_forget_delegations(u64 num)
{
unsigned int count;
LIST_HEAD(victims);
struct nfs4_delegation *dp, *dnext;
spin_lock(&recall_lock);
count = nfsd_process_n_delegations(num, &victims);
spin_unlock(&recall_lock);
nfs4_lock_state();
count = nfsd_process_n_delegations(num, unhash_delegation);
list_for_each_entry_safe(dp, dnext, &victims, dl_recall_lru)
unhash_delegation(dp);
nfs4_unlock_state();
printk(KERN_INFO "NFSD: Forgot %d delegations", count);
@ -4597,12 +4623,16 @@ void nfsd_forget_delegations(u64 num)
void nfsd_recall_delegations(u64 num)
{
unsigned int count;
LIST_HEAD(victims);
struct nfs4_delegation *dp, *dnext;
nfs4_lock_state();
spin_lock(&recall_lock);
count = nfsd_process_n_delegations(num, nfsd_break_one_deleg);
count = nfsd_process_n_delegations(num, &victims);
list_for_each_entry_safe(dp, dnext, &victims, dl_recall_lru) {
list_del(&dp->dl_recall_lru);
nfsd_break_one_deleg(dp);
}
spin_unlock(&recall_lock);
nfs4_unlock_state();
printk(KERN_INFO "NFSD: Recalled %d delegations", count);
}
@ -4665,6 +4695,8 @@ set_max_delegations(void)
int
nfs4_state_start(void)
{
struct net *net = &init_net;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
int ret;
/*
@ -4674,11 +4706,11 @@ nfs4_state_start(void)
* to that instead and then do most of the rest of this on a per-net
* basis.
*/
get_net(&init_net);
nfsd4_client_tracking_init(&init_net);
boot_time = get_seconds();
locks_start_grace(&nfsd4_manager);
grace_ended = false;
get_net(net);
nfsd4_client_tracking_init(net);
nn->boot_time = get_seconds();
locks_start_grace(net, &nn->nfsd4_manager);
nn->grace_ended = false;
printk(KERN_INFO "NFSD: starting %ld-second grace period\n",
nfsd4_grace);
ret = set_callback_cred();
@ -4700,8 +4732,8 @@ nfs4_state_start(void)
out_free_laundry:
destroy_workqueue(laundry_wq);
out_recovery:
nfsd4_client_tracking_exit(&init_net);
put_net(&init_net);
nfsd4_client_tracking_exit(net);
put_net(net);
return ret;
}
@ -4742,9 +4774,12 @@ __nfs4_state_shutdown(void)
void
nfs4_state_shutdown(void)
{
struct net *net = &init_net;
struct nfsd_net *nn = net_generic(net, nfsd_net_id);
cancel_delayed_work_sync(&laundromat_work);
destroy_workqueue(laundry_wq);
locks_end_grace(&nfsd4_manager);
locks_end_grace(&nn->nfsd4_manager);
nfs4_lock_state();
__nfs4_state_shutdown();
nfs4_unlock_state();

2
fs/nfsd/nfs4xdr.c
View File

@ -2259,7 +2259,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
if (bmval0 & FATTR4_WORD0_CASE_INSENSITIVE) {
if ((buflen -= 4) < 0)
goto out_resource;
WRITE32(1);
WRITE32(0);
}
if (bmval0 & FATTR4_WORD0_CASE_PRESERVING) {
if ((buflen -= 4) < 0)

8
fs/nfsd/nfsctl.c
View File

@ -673,9 +673,7 @@ static ssize_t __write_ports_addfd(char *buf)
err = svc_addsock(nfsd_serv, fd, buf, SIMPLE_TRANSACTION_LIMIT);
if (err < 0) {
if (nfsd_serv->sv_nrthreads == 1)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
nfsd_destroy(net);
return err;
}
@ -744,9 +742,7 @@ static ssize_t __write_ports_addxprt(char *buf)
svc_xprt_put(xprt);
}
out_err:
if (nfsd_serv->sv_nrthreads == 1)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
nfsd_destroy(net);
return err;
}

13
fs/nfsd/nfsd.h
View File

@ -72,6 +72,19 @@ int nfsd_nrthreads(void);
int nfsd_nrpools(void);
int nfsd_get_nrthreads(int n, int *);
int nfsd_set_nrthreads(int n, int *);
int nfsd_pool_stats_open(struct inode *, struct file *);
int nfsd_pool_stats_release(struct inode *, struct file *);
static inline void nfsd_destroy(struct net *net)
{
int destroy = (nfsd_serv->sv_nrthreads == 1);
if (destroy)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
if (destroy)
nfsd_serv = NULL;
}
#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
#ifdef CONFIG_NFSD_V2_ACL

24
fs/nfsd/nfssvc.c
View File

@ -254,8 +254,6 @@ static void nfsd_shutdown(void)
static void nfsd_last_thread(struct svc_serv *serv, struct net *net)
{
/* When last nfsd thread exits we need to do some clean-up */
nfsd_serv = NULL;
nfsd_shutdown();
svc_rpcb_cleanup(serv, net);
@ -332,6 +330,7 @@ static int nfsd_get_default_max_blksize(void)
int nfsd_create_serv(void)
{
int error;
struct net *net = current->nsproxy->net_ns;
WARN_ON(!mutex_is_locked(&nfsd_mutex));
if (nfsd_serv) {
@ -346,7 +345,7 @@ int nfsd_create_serv(void)
if (nfsd_serv == NULL)
return -ENOMEM;
error = svc_bind(nfsd_serv, current->nsproxy->net_ns);
error = svc_bind(nfsd_serv, net);
if (error < 0) {
svc_destroy(nfsd_serv);
return error;
@ -427,11 +426,7 @@ int nfsd_set_nrthreads(int n, int *nthreads)
if (err)
break;
}
if (nfsd_serv->sv_nrthreads == 1)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
nfsd_destroy(net);
return err;
}
@ -478,9 +473,7 @@ nfsd_svc(unsigned short port, int nrservs)
if (error < 0 && !nfsd_up_before)
nfsd_shutdown();
out_destroy:
if (nfsd_serv->sv_nrthreads == 1)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv); /* Release server */
nfsd_destroy(net); /* Release server */
out:
mutex_unlock(&nfsd_mutex);
return error;
@ -563,12 +556,13 @@ nfsd(void *vrqstp)
nfsdstats.th_cnt --;
out:
if (rqstp->rq_server->sv_nrthreads == 1)
svc_shutdown_net(rqstp->rq_server, &init_net);
rqstp->rq_server = NULL;
/* Release the thread */
svc_exit_thread(rqstp);
nfsd_destroy(&init_net);
/* Release module */
mutex_unlock(&nfsd_mutex);
module_put_and_exit(0);
@ -682,9 +676,7 @@ int nfsd_pool_stats_release(struct inode *inode, struct file *file)
mutex_lock(&nfsd_mutex);
/* this function really, really should have been called svc_put() */
if (nfsd_serv->sv_nrthreads == 1)
svc_shutdown_net(nfsd_serv, net);
svc_destroy(nfsd_serv);
nfsd_destroy(net);
mutex_unlock(&nfsd_mutex);
return ret;
}

5
fs/nfsd/state.h
View File

@ -450,8 +450,10 @@ static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s)
#define WR_STATE 0x00000020
struct nfsd4_compound_state;
struct nfsd_net;
extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate,
extern __be32 nfs4_preprocess_stateid_op(struct net *net,
struct nfsd4_compound_state *cstate,
stateid_t *stateid, int flags, struct file **filp);
extern void nfs4_lock_state(void);
extern void nfs4_unlock_state(void);
@ -475,7 +477,6 @@ extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname);
extern int nfs4_client_to_reclaim(const char *name);
extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id);
extern void release_session_client(struct nfsd4_session *);
extern __be32 nfs4_validate_stateid(struct nfs4_client *, stateid_t *);
extern void nfsd4_purge_closed_stateid(struct nfs4_stateowner *);
/* nfs4recover operations */

10
fs/nfsd/vfs.c
View File

@ -757,8 +757,16 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type,
* If we get here, then the client has already done an "open",
* and (hopefully) checked permission - so allow OWNER_OVERRIDE
* in case a chmod has now revoked permission.
*
* Arguably we should also allow the owner override for
* directories, but we never have and it doesn't seem to have
* caused anyone a problem. If we were to change this, note
* also that our filldir callbacks would need a variant of
* lookup_one_len that doesn't check permissions.
*/
err = fh_verify(rqstp, fhp, type, may_flags | NFSD_MAY_OWNER_OVERRIDE);
if (type == S_IFREG)
may_flags |= NFSD_MAY_OWNER_OVERRIDE;
err = fh_verify(rqstp, fhp, type, may_flags);
if (err)
goto out;

5
include/linux/fs.h
View File

@ -1163,9 +1163,10 @@ struct lock_manager {
struct list_head list;
};
void locks_start_grace(struct lock_manager *);
struct net;
void locks_start_grace(struct net *, struct lock_manager *);
void locks_end_grace(struct lock_manager *);
int locks_in_grace(void);
int locks_in_grace(struct net *);
/* that will die - we need it for nfs_lock_info */
#include <linux/nfs_fs_i.h>

6
include/linux/lockd/lockd.h
View File

@ -262,11 +262,11 @@ typedef int (*nlm_host_match_fn_t)(void *cur, struct nlm_host *ref);
__be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
struct nlm_host *, struct nlm_lock *, int,
struct nlm_cookie *, int);
__be32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
__be32 nlmsvc_unlock(struct net *net, struct nlm_file *, struct nlm_lock *);
__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *,
struct nlm_host *, struct nlm_lock *,
struct nlm_lock *, struct nlm_cookie *);
__be32 nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *);
__be32 nlmsvc_cancel_blocked(struct net *net, struct nlm_file *, struct nlm_lock *);
unsigned long nlmsvc_retry_blocked(void);
void nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *,
nlm_host_match_fn_t match);
@ -279,7 +279,7 @@ void nlmsvc_release_call(struct nlm_rqst *);
__be32 nlm_lookup_file(struct svc_rqst *, struct nlm_file **,
struct nfs_fh *);
void nlm_release_file(struct nlm_file *);
void nlmsvc_mark_resources(void);
void nlmsvc_mark_resources(struct net *);
void nlmsvc_free_host_resources(struct nlm_host *);
void nlmsvc_invalidate_all(void);

34
include/linux/sunrpc/cache.h
View File

@ -217,14 +217,32 @@ extern int qword_get(char **bpp, char *dest, int bufsize);
static inline int get_int(char **bpp, int *anint)
{
char buf[50];
char *ep;
int rv;
int len = qword_get(bpp, buf, 50);
if (len < 0) return -EINVAL;
if (len ==0) return -ENOENT;
rv = simple_strtol(buf, &ep, 0);
if (*ep) return -EINVAL;
*anint = rv;
int len = qword_get(bpp, buf, sizeof(buf));
if (len < 0)
return -EINVAL;
if (len == 0)
return -ENOENT;
if (kstrtoint(buf, 0, anint))
return -EINVAL;
return 0;
}
static inline int get_uint(char **bpp, unsigned int *anint)
{
char buf[50];
int len = qword_get(bpp, buf, sizeof(buf));
if (len < 0)
return -EINVAL;
if (len == 0)
return -ENOENT;
if (kstrtouint(buf, 0, anint))
return -EINVAL;
return 0;
}

2
include/linux/sunrpc/svc.h
View File

@ -278,6 +278,8 @@ struct svc_rqst {
struct task_struct *rq_task; /* service thread */
};
#define SVC_NET(svc_rqst) (svc_rqst->rq_xprt->xpt_net)
/*
* Rigorous type checking on sockaddr type conversions
*/

5
net/sunrpc/cache.c
View File

@ -1349,8 +1349,11 @@ static int c_show(struct seq_file *m, void *p)
if (cache_check(cd, cp, NULL))
/* cache_check does a cache_put on failure */
seq_printf(m, "# ");
else
else {
if (cache_is_expired(cd, cp))
seq_printf(m, "# ");
cache_put(cp, cd);
}
return cd->cache_show(m, cd, cp);
}