diff options
-rw-r--r-- | fs/lockd/grace.c | 16 | ||||
-rw-r--r-- | fs/lockd/host.c | 92 | ||||
-rw-r--r-- | fs/lockd/netns.h | 7 | ||||
-rw-r--r-- | fs/lockd/svc.c | 43 | ||||
-rw-r--r-- | fs/lockd/svc4proc.c | 13 | ||||
-rw-r--r-- | fs/lockd/svclock.c | 16 | ||||
-rw-r--r-- | fs/lockd/svcproc.c | 15 | ||||
-rw-r--r-- | fs/lockd/svcsubs.c | 19 | ||||
-rw-r--r-- | fs/locks.c | 28 | ||||
-rw-r--r-- | fs/nfs/callback_xdr.c | 4 | ||||
-rw-r--r-- | fs/nfsd/export.c | 10 | ||||
-rw-r--r-- | fs/nfsd/netns.h | 4 | ||||
-rw-r--r-- | fs/nfsd/nfs4callback.c | 1 | ||||
-rw-r--r-- | fs/nfsd/nfs4idmap.c | 4 | ||||
-rw-r--r-- | fs/nfsd/nfs4proc.c | 18 | ||||
-rw-r--r-- | fs/nfsd/nfs4state.c | 201 | ||||
-rw-r--r-- | fs/nfsd/nfs4xdr.c | 2 | ||||
-rw-r--r-- | fs/nfsd/nfsctl.c | 8 | ||||
-rw-r--r-- | fs/nfsd/nfsd.h | 13 | ||||
-rw-r--r-- | fs/nfsd/nfssvc.c | 24 | ||||
-rw-r--r-- | fs/nfsd/state.h | 5 | ||||
-rw-r--r-- | fs/nfsd/vfs.c | 10 | ||||
-rw-r--r-- | include/linux/fs.h | 5 | ||||
-rw-r--r-- | include/linux/lockd/lockd.h | 6 | ||||
-rw-r--r-- | include/linux/sunrpc/cache.h | 34 | ||||
-rw-r--r-- | include/linux/sunrpc/svc.h | 2 | ||||
-rw-r--r-- | net/sunrpc/cache.c | 5 |
27 files changed, 368 insertions, 237 deletions
diff --git a/fs/lockd/grace.c b/fs/lockd/grace.c index 183cc1f0af1c..6d1ee7204c88 100644 --- a/fs/lockd/grace.c +++ b/fs/lockd/grace.c @@ -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); diff --git a/fs/lockd/host.c b/fs/lockd/host.c index eb75ca7c2d6e..f9b22e58f78f 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c @@ -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 @@ out: 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; + } } diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h index ce227e0fbc5c..4eee248ba96e 100644 --- a/fs/lockd/netns.h +++ b/fs/lockd/netns.h @@ -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; diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index 80938fda67e0..31a63f87b806 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -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); -static DECLARE_DELAYED_WORK(grace_period_end, grace_ender); + locks_end_grace(&ln->lockd_manager); +} -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; } diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index 9a41fdc19511..4a43d253c045 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -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; } diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index e46353f41a42..afe4488c33d8 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -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 @@ out: * 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); diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c index d27aab11f324..de8f2caa2235 100644 --- a/fs/lockd/svcproc.c +++ b/fs/lockd/svcproc.c @@ -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; } diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index 2240d384d787..0deb5f6c9dd4 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c @@ -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); } /* diff --git a/fs/locks.c b/fs/locks.c index 82c353304f9e..cdcf219a7391 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -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; } diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c index e64b01d2a338..742ff4ffced7 100644 --- a/fs/nfs/callback_xdr.c +++ b/fs/nfs/callback_xdr.c @@ -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; } diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c index ba233499b9a5..a3946cf13fc8 100644 --- a/fs/nfsd/export.c +++ b/fs/nfsd/export.c @@ -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) diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 39365636b244..65c2431ea32f 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -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; diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index a5fd6b982f27..cbaf4f8bb7b7 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -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); diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index dae36f1dee95..fdc91a6fc9c4 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c @@ -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); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 987e719fbae8..c9c1c0a25417 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -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(); diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 94effd5bc4a1..cc894eda385a 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -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; @@ -3007,14 +3019,12 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf 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 @@ out: 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 @@ out: } 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(); diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 4949667c84ea..6322df36031f 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -2259,7 +2259,7 @@ out_acl: 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) diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index c55298ed5772..fa49cff5ee65 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -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 @@ out_close: 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; } diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h index 1671429ffa66..2244222368ab 100644 --- a/fs/nfsd/nfsd.h +++ b/fs/nfsd/nfsd.h @@ -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 diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index ee709fc8f58b..240473cb708f 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -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 @@ out_shutdown: 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; } diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h index 849091e16ea6..e6173147f982 100644 --- a/fs/nfsd/state.h +++ b/fs/nfsd/state.h @@ -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 */ diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 4700a0a929d7..702f64e820c3 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -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; diff --git a/include/linux/fs.h b/include/linux/fs.h index 8fabb037a48d..b178f9e91e23 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -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> diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index f04ce6ac6d04..f5a051a79273 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -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); diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index f5fd6160dbca..f792794f6634 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -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; } diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 40e0a273faea..d83db800fe02 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -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 */ diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 47ad2666fdf6..2afd2a84dc35 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -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); } |