Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

35 files changed, 1678 insertions, 1016 deletions

diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index c5a33648e9fd..145524039577 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -26,11 +26,12 @@
 static int	nlmclnt_test(struct nlm_rqst *, struct file_lock *);
 static int	nlmclnt_lock(struct nlm_rqst *, struct file_lock *);
 static int	nlmclnt_unlock(struct nlm_rqst *, struct file_lock *);
-static void	nlmclnt_unlock_callback(struct rpc_task *);
-static void	nlmclnt_cancel_callback(struct rpc_task *);
 static int	nlm_stat_to_errno(u32 stat);
 static void	nlmclnt_locks_init_private(struct file_lock *fl, struct nlm_host *host);
 
+static const struct rpc_call_ops nlmclnt_unlock_ops;
+static const struct rpc_call_ops nlmclnt_cancel_ops;
+
 /*
  * Cookie counter for NLM requests
  */
@@ -221,8 +222,7 @@ nlmclnt_proc(struct inode *inode, int cmd, struct file_lock *fl)
 			goto done;
 		}
 		clnt->cl_softrtry = nfssrv->client->cl_softrtry;
-		clnt->cl_intr     = nfssrv->client->cl_intr;
-		clnt->cl_chatty   = nfssrv->client->cl_chatty;
+		clnt->cl_intr = nfssrv->client->cl_intr;
 	}
 
 	/* Keep the old signal mask */
@@ -399,8 +399,7 @@ in_grace_period:
 /*
  * Generic NLM call, async version.
  */
-int
-nlmsvc_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
+int nlmsvc_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
 {
 	struct nlm_host	*host = req->a_host;
 	struct rpc_clnt	*clnt;
@@ -419,13 +418,12 @@ nlmsvc_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
 	msg.rpc_proc = &clnt->cl_procinfo[proc];
 
         /* bootstrap and kick off the async RPC call */
-        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, callback, req);
+        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, tk_ops, req);
 
 	return status;
 }
 
-static int
-nlmclnt_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
+static int nlmclnt_async_call(struct nlm_rqst *req, u32 proc, const struct rpc_call_ops *tk_ops)
 {
 	struct nlm_host	*host = req->a_host;
 	struct rpc_clnt	*clnt;
@@ -448,7 +446,7 @@ nlmclnt_async_call(struct nlm_rqst *req, u32 proc, rpc_action callback)
 	/* Increment host refcount */
 	nlm_get_host(host);
         /* bootstrap and kick off the async RPC call */
-        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, callback, req);
+        status = rpc_call_async(clnt, &msg, RPC_TASK_ASYNC, tk_ops, req);
 	if (status < 0)
 		nlm_release_host(host);
 	return status;
@@ -664,7 +662,7 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
 
 	if (req->a_flags & RPC_TASK_ASYNC) {
 		status = nlmclnt_async_call(req, NLMPROC_UNLOCK,
-					nlmclnt_unlock_callback);
+					&nlmclnt_unlock_ops);
 		/* Hrmf... Do the unlock early since locks_remove_posix()
 		 * really expects us to free the lock synchronously */
 		do_vfs_lock(fl);
@@ -692,10 +690,9 @@ nlmclnt_unlock(struct nlm_rqst *req, struct file_lock *fl)
 	return -ENOLCK;
 }
 
-static void
-nlmclnt_unlock_callback(struct rpc_task *task)
+static void nlmclnt_unlock_callback(struct rpc_task *task, void *data)
 {
-	struct nlm_rqst	*req = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_rqst	*req = data;
 	int		status = req->a_res.status;
 
 	if (RPC_ASSASSINATED(task))
@@ -722,6 +719,10 @@ die:
 	rpc_restart_call(task);
 }
 
+static const struct rpc_call_ops nlmclnt_unlock_ops = {
+	.rpc_call_done = nlmclnt_unlock_callback,
+};
+
 /*
  * Cancel a blocked lock request.
  * We always use an async RPC call for this in order not to hang a
@@ -750,8 +751,7 @@ nlmclnt_cancel(struct nlm_host *host, struct file_lock *fl)
 
 	nlmclnt_setlockargs(req, fl);
 
-	status = nlmclnt_async_call(req, NLMPROC_CANCEL,
-					nlmclnt_cancel_callback);
+	status = nlmclnt_async_call(req, NLMPROC_CANCEL, &nlmclnt_cancel_ops);
 	if (status < 0) {
 		nlmclnt_release_lockargs(req);
 		kfree(req);
@@ -765,10 +765,9 @@ nlmclnt_cancel(struct nlm_host *host, struct file_lock *fl)
 	return status;
 }
 
-static void
-nlmclnt_cancel_callback(struct rpc_task *task)
+static void nlmclnt_cancel_callback(struct rpc_task *task, void *data)
 {
-	struct nlm_rqst	*req = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_rqst	*req = data;
 
 	if (RPC_ASSASSINATED(task))
 		goto die;
@@ -807,6 +806,10 @@ retry_cancel:
 	rpc_delay(task, 30 * HZ);
 }
 
+static const struct rpc_call_ops nlmclnt_cancel_ops = {
+	.rpc_call_done = nlmclnt_cancel_callback,
+};
+
 /*
  * Convert an NLM status code to a generic kernel errno
  */
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index c4c8601096e0..82f7a0b1d8ae 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -177,7 +177,7 @@ nlm_bind_host(struct nlm_host *host)
 	if ((clnt = host->h_rpcclnt) != NULL) {
 		xprt = clnt->cl_xprt;
 		if (time_after_eq(jiffies, host->h_nextrebind)) {
-			clnt->cl_port = 0;
+			rpc_force_rebind(clnt);
 			host->h_nextrebind = jiffies + NLM_HOST_REBIND;
 			dprintk("lockd: next rebind in %ld jiffies\n",
 					host->h_nextrebind - jiffies);
@@ -217,7 +217,7 @@ nlm_rebind_host(struct nlm_host *host)
 {
 	dprintk("lockd: rebind host %s\n", host->h_name);
 	if (host->h_rpcclnt && time_after_eq(jiffies, host->h_nextrebind)) {
-		host->h_rpcclnt->cl_port = 0;
+		rpc_force_rebind(host->h_rpcclnt);
 		host->h_nextrebind = jiffies + NLM_HOST_REBIND;
 	}
 }
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 2d144abe84ad..0edc03e67966 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -123,7 +123,6 @@ nsm_create(void)
 	if (IS_ERR(clnt))
 		goto out_err;
 	clnt->cl_softrtry = 1;
-	clnt->cl_chatty   = 1;
 	clnt->cl_oneshot  = 1;
 	return clnt;
 
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 12a857c29e25..71a30b416d1a 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -178,6 +178,8 @@ lockd(struct svc_rqst *rqstp)
 
 	}
 
+	flush_signals(current);
+
 	/*
 	 * Check whether there's a new lockd process before
 	 * shutting down the hosts and clearing the slot.
@@ -192,8 +194,6 @@ lockd(struct svc_rqst *rqstp)
 			"lockd: new process, skipping host shutdown\n");
 	wake_up(&lockd_exit);
 
-	flush_signals(current);
-
 	/* Exit the RPC thread */
 	svc_exit_thread(rqstp);
 
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 489670e21769..4063095d849e 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -22,7 +22,8 @@
 #define NLMDBG_FACILITY		NLMDBG_CLIENT
 
 static u32	nlm4svc_callback(struct svc_rqst *, u32, struct nlm_res *);
-static void	nlm4svc_callback_exit(struct rpc_task *);
+
+static const struct rpc_call_ops nlm4svc_callback_ops;
 
 /*
  * Obtain client and file from arguments
@@ -470,7 +471,6 @@ nlm4svc_proc_granted_res(struct svc_rqst *rqstp, struct nlm_res  *argp,
 }
 
 
-
 /*
  * This is the generic lockd callback for async RPC calls
  */
@@ -494,7 +494,7 @@ nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
 	call->a_host  = host;
 	memcpy(&call->a_args, resp, sizeof(*resp));
 
-	if (nlmsvc_async_call(call, proc, nlm4svc_callback_exit) < 0)
+	if (nlmsvc_async_call(call, proc, &nlm4svc_callback_ops) < 0)
 		goto error;
 
 	return rpc_success;
@@ -504,10 +504,9 @@ nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
 	return rpc_system_err;
 }
 
-static void
-nlm4svc_callback_exit(struct rpc_task *task)
+static void nlm4svc_callback_exit(struct rpc_task *task, void *data)
 {
-	struct nlm_rqst	*call = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_rqst	*call = data;
 
 	if (task->tk_status < 0) {
 		dprintk("lockd: %4d callback failed (errno = %d)\n",
@@ -517,6 +516,10 @@ nlm4svc_callback_exit(struct rpc_task *task)
 	kfree(call);
 }
 
+static const struct rpc_call_ops nlm4svc_callback_ops = {
+	.rpc_call_done = nlm4svc_callback_exit,
+};
+
 /*
  * NLM Server procedures.
  */
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 49f959796b66..9cfced65d4a2 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -41,7 +41,8 @@
 
 static void	nlmsvc_insert_block(struct nlm_block *block, unsigned long);
 static int	nlmsvc_remove_block(struct nlm_block *block);
-static void	nlmsvc_grant_callback(struct rpc_task *task);
+
+static const struct rpc_call_ops nlmsvc_grant_ops;
 
 /*
  * The list of blocked locks to retry
@@ -226,31 +227,27 @@ failed:
  * It is the caller's responsibility to check whether the file
  * can be closed hereafter.
  */
-static void
+static int
 nlmsvc_delete_block(struct nlm_block *block, int unlock)
 {
 	struct file_lock	*fl = &block->b_call.a_args.lock.fl;
 	struct nlm_file		*file = block->b_file;
 	struct nlm_block	**bp;
+	int status = 0;
 
 	dprintk("lockd: deleting block %p...\n", block);
 
 	/* Remove block from list */
 	nlmsvc_remove_block(block);
-	if (fl->fl_next)
-		posix_unblock_lock(file->f_file, fl);
-	if (unlock) {
-		fl->fl_type = F_UNLCK;
-		posix_lock_file(file->f_file, fl);
-		block->b_granted = 0;
-	}
+	if (unlock)
+		status = posix_unblock_lock(file->f_file, fl);
 
 	/* If the block is in the middle of a GRANT callback,
 	 * don't kill it yet. */
 	if (block->b_incall) {
 		nlmsvc_insert_block(block, NLM_NEVER);
 		block->b_done = 1;
-		return;
+		return status;
 	}
 
 	/* Remove block from file's list of blocks */
@@ -265,6 +262,7 @@ nlmsvc_delete_block(struct nlm_block *block, int unlock)
 		nlm_release_host(block->b_host);
 	nlmclnt_freegrantargs(&block->b_call);
 	kfree(block);
+	return status;
 }
 
 /*
@@ -275,6 +273,7 @@ int
 nlmsvc_traverse_blocks(struct nlm_host *host, struct nlm_file *file, int action)
 {
 	struct nlm_block	*block, *next;
+	/* XXX: Will everything get cleaned up if we don't unlock here? */
 
 	down(&file->f_sema);
 	for (block = file->f_blocks; block; block = next) {
@@ -444,6 +443,7 @@ u32
 nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
 {
 	struct nlm_block	*block;
+	int status = 0;
 
 	dprintk("lockd: nlmsvc_cancel(%s/%ld, pi=%d, %Ld-%Ld)\n",
 				file->f_file->f_dentry->d_inode->i_sb->s_id,
@@ -454,9 +454,9 @@ nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
 
 	down(&file->f_sema);
 	if ((block = nlmsvc_lookup_block(file, lock, 1)) != NULL)
-		nlmsvc_delete_block(block, 1);
+		status = nlmsvc_delete_block(block, 1);
 	up(&file->f_sema);
-	return nlm_granted;
+	return status ? nlm_lck_denied : nlm_granted;
 }
 
 /*
@@ -562,7 +562,7 @@ callback:
 	/* Call the client */
 	nlm_get_host(block->b_call.a_host);
 	if (nlmsvc_async_call(&block->b_call, NLMPROC_GRANTED_MSG,
-						nlmsvc_grant_callback) < 0)
+						&nlmsvc_grant_ops) < 0)
 		nlm_release_host(block->b_call.a_host);
 	up(&file->f_sema);
 }
@@ -575,10 +575,9 @@ callback:
  * chain once more in order to have it removed by lockd itself (which can
  * then sleep on the file semaphore without disrupting e.g. the nfs client).
  */
-static void
-nlmsvc_grant_callback(struct rpc_task *task)
+static void nlmsvc_grant_callback(struct rpc_task *task, void *data)
 {
-	struct nlm_rqst		*call = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_rqst		*call = data;
 	struct nlm_block	*block;
 	unsigned long		timeout;
 	struct sockaddr_in	*peer_addr = RPC_PEERADDR(task->tk_client);
@@ -614,6 +613,10 @@ nlmsvc_grant_callback(struct rpc_task *task)
 	nlm_release_host(call->a_host);
 }
 
+static const struct rpc_call_ops nlmsvc_grant_ops = {
+	.rpc_call_done = nlmsvc_grant_callback,
+};
+
 /*
  * We received a GRANT_RES callback. Try to find the corresponding
  * block.
@@ -633,11 +636,12 @@ nlmsvc_grant_reply(struct svc_rqst *rqstp, struct nlm_cookie *cookie, u32 status
 
 	file->f_count++;
 	down(&file->f_sema);
-	if ((block = nlmsvc_find_block(cookie,&rqstp->rq_addr)) != NULL) {
+	block = nlmsvc_find_block(cookie, &rqstp->rq_addr);
+	if (block) {
 		if (status == NLM_LCK_DENIED_GRACE_PERIOD) {
 			/* Try again in a couple of seconds */
 			nlmsvc_insert_block(block, 10 * HZ);
-			block = NULL;
+			up(&file->f_sema);
 		} else {
 			/* Lock is now held by client, or has been rejected.
 			 * In both cases, the block should be removed. */
@@ -648,8 +652,6 @@ nlmsvc_grant_reply(struct svc_rqst *rqstp, struct nlm_cookie *cookie, u32 status
 				nlmsvc_delete_block(block, 1);
 		}
 	}
-	if (!block)
-		up(&file->f_sema);
 	nlm_release_file(file);
 }
 
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 757e344cf200..3bc437e0cf5b 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -23,7 +23,8 @@
 #define NLMDBG_FACILITY		NLMDBG_CLIENT
 
 static u32	nlmsvc_callback(struct svc_rqst *, u32, struct nlm_res *);
-static void	nlmsvc_callback_exit(struct rpc_task *);
+
+static const struct rpc_call_ops nlmsvc_callback_ops;
 
 #ifdef CONFIG_LOCKD_V4
 static u32
@@ -518,7 +519,7 @@ nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
 	call->a_host  = host;
 	memcpy(&call->a_args, resp, sizeof(*resp));
 
-	if (nlmsvc_async_call(call, proc, nlmsvc_callback_exit) < 0)
+	if (nlmsvc_async_call(call, proc, &nlmsvc_callback_ops) < 0)
 		goto error;
 
 	return rpc_success;
@@ -528,10 +529,9 @@ nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_res *resp)
 	return rpc_system_err;
 }
 
-static void
-nlmsvc_callback_exit(struct rpc_task *task)
+static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
 {
-	struct nlm_rqst	*call = (struct nlm_rqst *) task->tk_calldata;
+	struct nlm_rqst	*call = data;
 
 	if (task->tk_status < 0) {
 		dprintk("lockd: %4d callback failed (errno = %d)\n",
@@ -541,6 +541,10 @@ nlmsvc_callback_exit(struct rpc_task *task)
 	kfree(call);
 }
 
+static const struct rpc_call_ops nlmsvc_callback_ops = {
+	.rpc_call_done = nlmsvc_callback_exit,
+};
+
 /*
  * NLM Server procedures.
  */
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index ae4d6b426c62..fdcf105a5303 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -354,7 +354,9 @@ nlm4svc_decode_reboot(struct svc_rqst *rqstp, u32 *p, struct nlm_reboot *argp)
 		return 0;
 	argp->state = ntohl(*p++);
 	/* Preserve the address in network byte order */
-	argp->addr = *p++;
+	argp->addr  = *p++;
+	argp->vers  = *p++;
+	argp->proto = *p++;
 	return xdr_argsize_check(rqstp, p);
 }
 
diff --git a/fs/locks.c b/fs/locks.c
index 250ef53d25ef..fb32d6218e21 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1958,22 +1958,18 @@ EXPORT_SYMBOL(posix_block_lock);
  *
  *	lockd needs to block waiting for locks.
  */
-void
+int
 posix_unblock_lock(struct file *filp, struct file_lock *waiter)
 {
-	/* 
-	 * A remote machine may cancel the lock request after it's been
-	 * granted locally.  If that happens, we need to delete the lock.
-	 */
+	int status = 0;
+
 	lock_kernel();
-	if (waiter->fl_next) {
+	if (waiter->fl_next)
 		__locks_delete_block(waiter);
-		unlock_kernel();
-	} else {
-		unlock_kernel();
-		waiter->fl_type = F_UNLCK;
-		posix_lock_file(filp, waiter);
-	}
+	else
+		status = -ENOENT;
+	unlock_kernel();
+	return status;
 }
 
 EXPORT_SYMBOL(posix_unblock_lock);
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 8b3bb715d177..ec61fd56a1a9 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -13,4 +13,5 @@ nfs-$(CONFIG_NFS_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o \
 			   delegation.o idmap.o \
 			   callback.o callback_xdr.o callback_proc.o
 nfs-$(CONFIG_NFS_DIRECTIO) += direct.o
+nfs-$(CONFIG_SYSCTL) += sysctl.o
 nfs-objs		:= $(nfs-y)
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 30cae3602867..fcd97406a778 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -34,6 +34,7 @@ static struct nfs_callback_data nfs_callback_info;
 static DECLARE_MUTEX(nfs_callback_sema);
 static struct svc_program nfs4_callback_program;
 
+unsigned int nfs_callback_set_tcpport;
 unsigned short nfs_callback_tcpport;
 
 /*
@@ -98,7 +99,7 @@ int nfs_callback_up(void)
 	if (!serv)
 		goto out_err;
 	/* FIXME: We don't want to register this socket with the portmapper */
-	ret = svc_makesock(serv, IPPROTO_TCP, 0);
+	ret = svc_makesock(serv, IPPROTO_TCP, nfs_callback_set_tcpport);
 	if (ret < 0)
 		goto out_destroy;
 	if (!list_empty(&serv->sv_permsocks)) {
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index a0db2d4f9415..b252e7fe53a5 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -65,6 +65,7 @@ extern unsigned nfs4_callback_recall(struct cb_recallargs *args, void *dummy);
 extern int nfs_callback_up(void);
 extern int nfs_callback_down(void);
 
+extern unsigned int nfs_callback_set_tcpport;
 extern unsigned short nfs_callback_tcpport;
 
 #endif /* __LINUX_FS_NFS_CALLBACK_H */
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 65f1e19e4d19..462cfceb50c5 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -35,7 +35,9 @@ unsigned nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres
 	if (delegation == NULL || (delegation->type & FMODE_WRITE) == 0)
 		goto out_iput;
 	res->size = i_size_read(inode);
-	res->change_attr = NFS_CHANGE_ATTR(inode);
+	res->change_attr = delegation->change_attr;
+	if (nfsi->npages != 0)
+		res->change_attr++;
 	res->ctime = inode->i_ctime;
 	res->mtime = inode->i_mtime;
 	res->bitmap[0] = (FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE) &
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 618a327027b3..c6f07c1c71e6 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -8,6 +8,7 @@
  */
 #include <linux/config.h>
 #include <linux/completion.h>
+#include <linux/kthread.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/spinlock.h>
@@ -130,6 +131,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
 			sizeof(delegation->stateid.data));
 	delegation->type = res->delegation_type;
 	delegation->maxsize = res->maxsize;
+	delegation->change_attr = nfsi->change_attr;
 	delegation->cred = get_rpccred(cred);
 	delegation->inode = inode;
 
@@ -157,8 +159,6 @@ static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation *
 {
 	int res = 0;
 
-	__nfs_revalidate_inode(NFS_SERVER(inode), inode);
-
 	res = nfs4_proc_delegreturn(inode, delegation->cred, &delegation->stateid);
 	nfs_free_delegation(delegation);
 	return res;
@@ -231,6 +231,49 @@ restart:
 	spin_unlock(&clp->cl_lock);
 }
 
+int nfs_do_expire_all_delegations(void *ptr)
+{
+	struct nfs4_client *clp = ptr;
+	struct nfs_delegation *delegation;
+	struct inode *inode;
+
+	allow_signal(SIGKILL);
+restart:
+	spin_lock(&clp->cl_lock);
+	if (test_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) != 0)
+		goto out;
+	if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0)
+		goto out;
+	list_for_each_entry(delegation, &clp->cl_delegations, super_list) {
+		inode = igrab(delegation->inode);
+		if (inode == NULL)
+			continue;
+		spin_unlock(&clp->cl_lock);
+		nfs_inode_return_delegation(inode);
+		iput(inode);
+		goto restart;
+	}
+out:
+	spin_unlock(&clp->cl_lock);
+	nfs4_put_client(clp);
+	module_put_and_exit(0);
+}
+
+void nfs_expire_all_delegations(struct nfs4_client *clp)
+{
+	struct task_struct *task;
+
+	__module_get(THIS_MODULE);
+	atomic_inc(&clp->cl_count);
+	task = kthread_run(nfs_do_expire_all_delegations, clp,
+			"%u.%u.%u.%u-delegreturn",
+			NIPQUAD(clp->cl_addr));
+	if (!IS_ERR(task))
+		return;
+	nfs4_put_client(clp);
+	module_put(THIS_MODULE);
+}
+
 /*
  * Return all delegations following an NFS4ERR_CB_PATH_DOWN error.
  */
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 2fcc30de924b..7a0b2bfce771 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -21,6 +21,7 @@ struct nfs_delegation {
 #define NFS_DELEGATION_NEED_RECLAIM 1
 	long flags;
 	loff_t maxsize;
+	__u64 change_attr;
 };
 
 int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
@@ -30,6 +31,7 @@ int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *s
 
 struct inode *nfs_delegation_find_inode(struct nfs4_client *clp, const struct nfs_fh *fhandle);
 void nfs_return_all_delegations(struct super_block *sb);
+void nfs_expire_all_delegations(struct nfs4_client *clp);
 void nfs_handle_cb_pathdown(struct nfs4_client *clp);
 
 void nfs_delegation_mark_reclaim(struct nfs4_client *clp);
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c0d1a214572c..e9255198f767 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1550,8 +1550,10 @@ go_ahead:
 	}
 	nfs_inode_return_delegation(old_inode);
 
-	if (new_inode)
+	if (new_inode != NULL) {
+		nfs_inode_return_delegation(new_inode);
 		d_delete(new_dentry);
+	}
 
 	nfs_begin_data_update(old_dir);
 	nfs_begin_data_update(new_dir);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 079228817603..10ae377e68ff 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -122,9 +122,10 @@ nfs_free_user_pages(struct page **pages, int npages, int do_dirty)
 {
 	int i;
 	for (i = 0; i < npages; i++) {
-		if (do_dirty)
-			set_page_dirty_lock(pages[i]);
-		page_cache_release(pages[i]);
+		struct page *page = pages[i];
+		if (do_dirty && !PageCompound(page))
+			set_page_dirty_lock(page);
+		page_cache_release(page);
 	}
 	kfree(pages);
 }
@@ -154,6 +155,7 @@ static struct nfs_direct_req *nfs_direct_read_alloc(size_t nbytes, unsigned int
 	struct list_head *list;
 	struct nfs_direct_req *dreq;
 	unsigned int reads = 0;
+	unsigned int rpages = (rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
 
 	dreq = kmem_cache_alloc(nfs_direct_cachep, SLAB_KERNEL);
 	if (!dreq)
@@ -167,7 +169,7 @@ static struct nfs_direct_req *nfs_direct_read_alloc(size_t nbytes, unsigned int
 
 	list = &dreq->list;
 	for(;;) {
-		struct nfs_read_data *data = nfs_readdata_alloc();
+		struct nfs_read_data *data = nfs_readdata_alloc(rpages);
 
 		if (unlikely(!data)) {
 			while (!list_empty(list)) {
@@ -268,8 +270,6 @@ static void nfs_direct_read_schedule(struct nfs_direct_req *dreq,
 		NFS_PROTO(inode)->read_setup(data);
 
 		data->task.tk_cookie = (unsigned long) inode;
-		data->task.tk_calldata = data;
-		data->task.tk_release = nfs_readdata_release;
 		data->complete = nfs_direct_read_result;
 
 		lock_kernel();
@@ -433,7 +433,7 @@ static ssize_t nfs_direct_write_seg(struct inode *inode,
 	struct nfs_writeverf first_verf;
 	struct nfs_write_data *wdata;
 
-	wdata = nfs_writedata_alloc();
+	wdata = nfs_writedata_alloc(NFS_SERVER(inode)->wpages);
 	if (!wdata)
 		return -ENOMEM;
 
@@ -662,10 +662,10 @@ nfs_file_direct_read(struct kiocb *iocb, char __user *buf, size_t count, loff_t
 		.iov_len = count,
 	};
 
-	dprintk("nfs: direct read(%s/%s, %lu@%lu)\n",
+	dprintk("nfs: direct read(%s/%s, %lu@%Ld)\n",
 		file->f_dentry->d_parent->d_name.name,
 		file->f_dentry->d_name.name,
-		(unsigned long) count, (unsigned long) pos);
+		(unsigned long) count, (long long) pos);
 
 	if (!is_sync_kiocb(iocb))
 		goto out;
@@ -718,9 +718,7 @@ out:
 ssize_t
 nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count, loff_t pos)
 {
-	ssize_t retval = -EINVAL;
-	loff_t *ppos = &iocb->ki_pos;
-	unsigned long limit = current->signal->rlim[RLIMIT_FSIZE].rlim_cur;
+	ssize_t retval;
 	struct file *file = iocb->ki_filp;
 	struct nfs_open_context *ctx =
 			(struct nfs_open_context *) file->private_data;
@@ -728,35 +726,32 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count,
 	struct inode *inode = mapping->host;
 	struct iovec iov = {
 		.iov_base = (char __user *)buf,
-		.iov_len = count,
 	};
 
-	dfprintk(VFS, "nfs: direct write(%s/%s(%ld), %lu@%lu)\n",
+	dfprintk(VFS, "nfs: direct write(%s/%s, %lu@%Ld)\n",
 		file->f_dentry->d_parent->d_name.name,
-		file->f_dentry->d_name.name, inode->i_ino,
-		(unsigned long) count, (unsigned long) pos);
+		file->f_dentry->d_name.name,
+		(unsigned long) count, (long long) pos);
 
+	retval = -EINVAL;
 	if (!is_sync_kiocb(iocb))
 		goto out;
-	if (count < 0)
-		goto out;
-        if (pos < 0)
+
+	retval = generic_write_checks(file, &pos, &count, 0);
+	if (retval)
 		goto out;
-	retval = -EFAULT;
-	if (!access_ok(VERIFY_READ, iov.iov_base, iov.iov_len))
+
+	retval = -EINVAL;
+	if ((ssize_t) count < 0)
 		goto out;
-	retval = -EFBIG;
-	if (limit != RLIM_INFINITY) {
-		if (pos >= limit) {
-			send_sig(SIGXFSZ, current, 0);
-			goto out;
-		}
-		if (count > limit - (unsigned long) pos)
-			count = limit - (unsigned long) pos;
-	}
 	retval = 0;
 	if (!count)
 		goto out;
+	iov.iov_len = count,
+
+	retval = -EFAULT;
+	if (!access_ok(VERIFY_READ, iov.iov_base, iov.iov_len))
+		goto out;
 
 	retval = nfs_sync_mapping(mapping);
 	if (retval)
@@ -766,7 +761,7 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count,
 	if (mapping->nrpages)
 		invalidate_inode_pages2(mapping);
 	if (retval > 0)
-		*ppos = pos + retval;
+		iocb->ki_pos = pos + retval;
 
 out:
 	return retval;
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index ffb8df91dc34..821edd30333b 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -54,7 +54,11 @@
 
 #define IDMAP_HASH_SZ          128
 
+/* Default cache timeout is 10 minutes */
+unsigned int nfs_idmap_cache_timeout = 600 * HZ;
+
 struct idmap_hashent {
+	unsigned long ih_expires;
 	__u32 ih_id;
 	int ih_namelen;
 	char ih_name[IDMAP_NAMESZ];
@@ -149,6 +153,8 @@ idmap_lookup_name(struct idmap_hashtable *h, const char *name, size_t len)
 
 	if (he->ih_namelen != len || memcmp(he->ih_name, name