Merge bk://gkernel.bkbits.net/libata-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

15 files changed, 158 insertions, 279 deletions

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 3be133aa4a79..4c873236d06a 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -37,6 +37,7 @@
 #include <linux/pagemap.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/random.h>
 
 #include <asm/uaccess.h>
 #include <asm/param.h>
@@ -165,21 +166,14 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr * exec,
 	if (k_platform) {
 		size_t len = strlen(k_platform) + 1;
 
-#ifdef CONFIG_X86_HT
 		/*
 		 * In some cases (e.g. Hyper-Threading), we want to avoid L1
 		 * evictions by the processes running on the same package. One
 		 * thing we can do is to shuffle the initial stack for them.
-		 *
-		 * The conditionals here are unneeded, but kept in to make the
-		 * code behaviour the same as pre change unless we have
-		 * hyperthreaded processors. This should be cleaned up
-		 * before 2.6
 		 */
 	 
-		if (smp_num_siblings > 1)
-			STACK_ALLOC(p, ((current->pid % 64) << 7));
-#endif
+		p = arch_align_stack(p);
+
 		u_platform = (elf_addr_t __user *)STACK_ALLOC(p, len);
 		if (__copy_to_user(u_platform, k_platform, len))
 			return -EFAULT;
@@ -501,6 +495,19 @@ out:
 #define INTERPRETER_ELF 2
 
 
+static unsigned long randomize_stack_top(unsigned long stack_top)
+{
+	unsigned int random_variable = 0;
+
+	if (current->flags & PF_RANDOMIZE)
+		random_variable = get_random_int() % (8*1024*1024);
+#ifdef CONFIG_STACK_GROWSUP
+	return PAGE_ALIGN(stack_top + random_variable);
+#else
+	return PAGE_ALIGN(stack_top - random_variable);
+#endif
+}
+
 static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 {
 	struct file *interpreter = NULL; /* to shut gcc up */
@@ -760,18 +767,29 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	if (elf_read_implies_exec(loc->elf_ex, executable_stack))
 		current->personality |= READ_IMPLIES_EXEC;
 
+	if ( !(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+		current->flags |= PF_RANDOMIZE;
 	arch_pick_mmap_layout(current->mm);
 
 	/* Do this so that we can load the interpreter, if need be.  We will
 	   change some of these later */
 	current->mm->rss = 0;
 	current->mm->free_area_cache = current->mm->mmap_base;
-	retval = setup_arg_pages(bprm, STACK_TOP, executable_stack);
+	retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
+				 executable_stack);
 	if (retval < 0) {
 		send_sig(SIGKILL, current, 0);
 		goto out_free_dentry;
 	}
 	
+#ifdef ARCH_HAS_SETUP_ADDITIONAL_PAGES
+	retval = arch_setup_additional_pages(bprm, executable_stack);
+	if (retval < 0) {
+		send_sig(SIGKILL, current, 0);
+		goto out_free_dentry;
+	}
+#endif /* ARCH_HAS_SETUP_ADDITIONAL_PAGES */
+
 	current->mm->start_stack = bprm->p;
 
 	/* Now we do a little grungy work by mmaping the ELF image into
diff --git a/fs/buffer.c b/fs/buffer.c
index 3c40d6382925..ed6458f00d64 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -875,7 +875,7 @@ int __set_page_dirty_buffers(struct page *page)
 	spin_unlock(&mapping->private_lock);
 
 	if (!TestSetPageDirty(page)) {
-		spin_lock_irq(&mapping->tree_lock);
+		write_lock_irq(&mapping->tree_lock);
 		if (page->mapping) {	/* Race with truncate? */
 			if (!mapping->backing_dev_info->memory_backed)
 				inc_page_state(nr_dirty);
@@ -883,7 +883,7 @@ int __set_page_dirty_buffers(struct page *page)
 						page_index(page),
 						PAGECACHE_TAG_DIRTY);
 		}
-		spin_unlock_irq(&mapping->tree_lock);
+		write_unlock_irq(&mapping->tree_lock);
 		__mark_inode_dirty(mapping->host, I_DIRTY_PAGES);
 	}
 	
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 283268396a15..5a674a0c7146 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1206,7 +1206,8 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 	 */
 	dio->lock_type = dio_lock_type;
 	if (dio_lock_type != DIO_NO_LOCKING) {
-		if (rw == READ) {
+		/* watch out for a 0 len io from a tricksy fs */
+		if (rw == READ && end > offset) {
 			struct address_space *mapping;
 
 			mapping = iocb->ki_filp->f_mapping;
@@ -1214,7 +1215,9 @@ __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
 				down(&inode->i_sem);
 				reader_with_isem = 1;
 			}
-			retval = filemap_write_and_wait(mapping);
+
+			retval = filemap_write_and_wait_range(mapping, offset,
+							      end - 1);
 			if (retval) {
 				kfree(dio);
 				goto out;
diff --git a/fs/exec.c b/fs/exec.c
index ee58e91a9d7f..393605cdc101 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -400,7 +400,8 @@ int setup_arg_pages(struct linux_binprm *bprm,
 	while (i < MAX_ARG_PAGES)
 		bprm->page[i++] = NULL;
 #else
-	stack_base = stack_top - MAX_ARG_PAGES * PAGE_SIZE;
+	stack_base = arch_align_stack(stack_top - MAX_ARG_PAGES*PAGE_SIZE);
+	stack_base = PAGE_ALIGN(stack_base);
 	bprm->p += stack_base;
 	mm->arg_start = bprm->p;
 	arg_size = stack_top - (PAGE_MASK & (unsigned long) mm->arg_start);
@@ -877,6 +878,7 @@ int flush_old_exec(struct linux_binprm * bprm)
 	tcomm[i] = '\0';
 	set_task_comm(current, tcomm);
 
+	current->flags &= ~PF_RANDOMIZE;
 	flush_thread();
 
 	if (bprm->e_uid != current->euid || bprm->e_gid != current->egid || 
@@ -1191,8 +1193,8 @@ int do_execve(char * filename,
 
 		/* execve success */
 		security_bprm_free(bprm);
-		acct_update_integrals();
-		update_mem_hiwater();
+		acct_update_integrals(current);
+		update_mem_hiwater(current);
 		kfree(bprm);
 		return retval;
 	}
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 0a6f7b06b8d7..c49d6254379a 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -55,7 +55,7 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent,
 	struct list_head *le, *head;
 	struct dentry *toput = NULL;
 	int noprogress;
-
+	char nbuf[NAME_MAX+1];
 
 	/*
 	 * Attempt to find the inode.
@@ -176,7 +176,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent,
 			 */
 			struct dentry *ppd;
 			struct dentry *npd;
-			char nbuf[NAME_MAX+1];
 
 			down(&pd->d_inode->i_sem);
 			ppd = CALL(nops,get_parent)(pd);
@@ -241,7 +240,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent,
 	/* if we weren't after a directory, have one more step to go */
 	if (result != target_dir) {
 		struct dentry *nresult;
-		char nbuf[NAME_MAX+1];
 		err = CALL(nops,get_name)(target_dir, nbuf, result);
 		if (!err) {
 			down(&target_dir->d_inode->i_sem);
diff --git a/fs/inode.c b/fs/inode.c
index d76a6e4b3ee1..ff654a268331 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -196,7 +196,7 @@ void inode_init_once(struct inode *inode)
 	sema_init(&inode->i_sem, 1);
 	init_rwsem(&inode->i_alloc_sem);
 	INIT_RADIX_TREE(&inode->i_data.page_tree, GFP_ATOMIC);
-	spin_lock_init(&inode->i_data.tree_lock);
+	rwlock_init(&inode->i_data.tree_lock);
 	spin_lock_init(&inode->i_data.i_mmap_lock);
 	INIT_LIST_HEAD(&inode->i_data.private_list);
 	spin_lock_init(&inode->i_data.private_lock);
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index d3ee09c5196e..b82e470912e8 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -403,6 +403,38 @@ static int param_set_##name(const char *val, struct kernel_param *kp)	\
 	return 0;							\
 }
 
+static inline int is_callback(u32 proc)
+{
+	return proc == NLMPROC_GRANTED
+		|| proc == NLMPROC_GRANTED_MSG
+		|| proc == NLMPROC_TEST_RES
+		|| proc == NLMPROC_LOCK_RES
+		|| proc == NLMPROC_CANCEL_RES
+		|| proc == NLMPROC_UNLOCK_RES
+		|| proc == NLMPROC_NSM_NOTIFY;
+}
+
+
+static int lockd_authenticate(struct svc_rqst *rqstp)
+{
+	rqstp->rq_client = NULL;
+	switch (rqstp->rq_authop->flavour) {
+		case RPC_AUTH_NULL:
+		case RPC_AUTH_UNIX:
+			if (rqstp->rq_proc == 0)
+				return SVC_OK;
+			if (is_callback(rqstp->rq_proc)) {
+				/* Leave it to individual procedures to
+				 * call nlmsvc_lookup_host(rqstp)
+				 */
+				return SVC_OK;
+			}
+			return svc_set_client(rqstp);
+	}
+	return SVC_DENIED;
+}
+
+
 param_set_min_max(port, int, simple_strtol, 0, 65535)
 param_set_min_max(grace_period, unsigned long, simple_strtoul,
 		  nlm_grace_period_min, nlm_grace_period_max)
@@ -483,4 +515,5 @@ static struct svc_program	nlmsvc_program = {
 	.pg_name		= "lockd",		/* service name */
 	.pg_class		= "nfsd",		/* share authentication with nfsd */
 	.pg_stats		= &nlmsvc_stats,	/* stats table */
+	.pg_authenticate = &lockd_authenticate	/* export authentication */
 };
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index ad7677b4f21d..560d6175dd58 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -139,133 +139,10 @@ out:
 	return ret;
 }
 
-/*
- * AUTH_NULL authentication
- */
-static int nfs_callback_null_accept(struct svc_rqst *rqstp, u32 *authp)
-{
-	struct kvec    *argv = &rqstp->rq_arg.head[0];
-	struct kvec    *resv = &rqstp->rq_res.head[0];
-
-	if (argv->iov_len < 3*4)
-		return SVC_GARBAGE;
-
-	if (svc_getu32(argv) != 0) {
-		dprintk("svc: bad null cred\n");
-		*authp = rpc_autherr_badcred;
-		return SVC_DENIED;
-	}
-	if (svc_getu32(argv) != RPC_AUTH_NULL || svc_getu32(argv) != 0) {
-		dprintk("svc: bad null verf\n");
-		 *authp = rpc_autherr_badverf;
-		 return SVC_DENIED;
-	}
-
-	/* Signal that mapping to nobody uid/gid is required */
-	rqstp->rq_cred.cr_uid = (uid_t) -1;
-	rqstp->rq_cred.cr_gid = (gid_t) -1;
-	rqstp->rq_cred.cr_group_info = groups_alloc(0);
-	if (rqstp->rq_cred.cr_group_info == NULL)
-		return SVC_DROP; /* kmalloc failure - client must retry */
-
-	/* Put NULL verifier */
-	svc_putu32(resv, RPC_AUTH_NULL);
-	svc_putu32(resv, 0);
-	dprintk("%s: success, returning %d!\n", __FUNCTION__, SVC_OK);
-	return SVC_OK;
-}
-
-static int nfs_callback_null_release(struct svc_rqst *rqstp)
-{
-	if (rqstp->rq_cred.cr_group_info)
-		put_group_info(rqstp->rq_cred.cr_group_info);
-	rqstp->rq_cred.cr_group_info = NULL;
-	return 0; /* don't drop */
-}
-
-static struct auth_ops nfs_callback_auth_null = {
-	.name = "null",
-	.flavour = RPC_AUTH_NULL,
-	.accept = nfs_callback_null_accept,
-	.release = nfs_callback_null_release,
-};
-
-/*
- * AUTH_SYS authentication
- */
-static int nfs_callback_unix_accept(struct svc_rqst *rqstp, u32 *authp)
-{
-	struct kvec    *argv = &rqstp->rq_arg.head[0];
-	struct kvec    *resv = &rqstp->rq_res.head[0];
-	struct svc_cred *cred = &rqstp->rq_cred;
-	u32 slen, i;
-	int len = argv->iov_len;
-
-	dprintk("%s: start\n", __FUNCTION__);
-	cred->cr_group_info = NULL;
-	rqstp->rq_client = NULL;
-	if ((len -= 3*4) < 0)
-		return SVC_GARBAGE;
-
-	/* Get length, time stamp and machine name */
-	svc_getu32(argv);
-	svc_getu32(argv);
-	slen = XDR_QUADLEN(ntohl(svc_getu32(argv)));
-	if (slen > 64 || (len -= (slen + 3)*4) < 0)
-		goto badcred;
-	argv->iov_base = (void*)((u32*)argv->iov_base + slen);
-	argv->iov_len -= slen*4;
-
-	cred->cr_uid = ntohl(svc_getu32(argv));
-	cred->cr_gid = ntohl(svc_getu32(argv));
-	slen = ntohl(svc_getu32(argv));
-	if (slen > 16 || (len -= (slen + 2)*4) < 0)
-		goto badcred;
-	cred->cr_group_info = groups_alloc(slen);
-	if (cred->cr_group_info == NULL)
-		return SVC_DROP;
-	for (i = 0; i < slen; i++)
-		GROUP_AT(cred->cr_group_info, i) = ntohl(svc_getu32(argv));
-
-	if (svc_getu32(argv) != RPC_AUTH_NULL || svc_getu32(argv) != 0) {
-		*authp = rpc_autherr_badverf;
-		return SVC_DENIED;
-	}
-	/* Put NULL verifier */
-	svc_putu32(resv, RPC_AUTH_NULL);
-	svc_putu32(resv, 0);
-	dprintk("%s: success, returning %d!\n", __FUNCTION__, SVC_OK);
-	return SVC_OK;
-badcred:
-	*authp = rpc_autherr_badcred;
-	return SVC_DENIED;
-}
-
-static int nfs_callback_unix_release(struct svc_rqst *rqstp)
-{
-	if (rqstp->rq_cred.cr_group_info)
-		put_group_info(rqstp->rq_cred.cr_group_info);
-	rqstp->rq_cred.cr_group_info = NULL;
-	return 0;
-}
-
-static struct auth_ops nfs_callback_auth_unix = {
-	.name = "unix",
-	.flavour = RPC_AUTH_UNIX,
-	.accept = nfs_callback_unix_accept,
-	.release = nfs_callback_unix_release,
-};
-
-/*
- * Hook the authentication protocol
- */
-static int nfs_callback_auth(struct svc_rqst *rqstp, u32 *authp)
+static int nfs_callback_authenticate(struct svc_rqst *rqstp)
 {
 	struct in_addr *addr = &rqstp->rq_addr.sin_addr;
 	struct nfs4_client *clp;
-	struct kvec *argv = &rqstp->rq_arg.head[0];
-	int flavour;
-	int retval;
 
 	/* Don't talk to strangers */
 	clp = nfs4_find_client(addr);
@@ -273,34 +150,19 @@ static int nfs_callback_auth(struct svc_rqst *rqstp, u32 *authp)
 		return SVC_DROP;
 	dprintk("%s: %u.%u.%u.%u NFSv4 callback!\n", __FUNCTION__, NIPQUAD(addr));
 	nfs4_put_client(clp);
-	flavour = ntohl(svc_getu32(argv));
-	switch(flavour) {
+	switch (rqstp->rq_authop->flavour) {
 		case RPC_AUTH_NULL:
-			if (rqstp->rq_proc != CB_NULL) {
-				*authp = rpc_autherr_tooweak;
-				retval = SVC_DENIED;
-				break;
-			}
-			rqstp->rq_authop = &nfs_callback_auth_null;
-			retval = nfs_callback_null_accept(rqstp, authp);
+			if (rqstp->rq_proc != CB_NULL)
+				return SVC_DENIED;
 			break;
 		case RPC_AUTH_UNIX:
-			/* Eat the authentication flavour */
-			rqstp->rq_authop = &nfs_callback_auth_unix;
-			retval = nfs_callback_unix_accept(rqstp, authp);
 			break;
+		case RPC_AUTH_GSS:
+			/* FIXME: RPCSEC_GSS handling? */
 		default:
-			/* FIXME: need to add RPCSEC_GSS upcalls */
-#if 0
-			svc_ungetu32(argv);
-			retval = svc_authenticate(rqstp, authp);
-#else
-			*authp = rpc_autherr_rejectedcred;
-			retval = SVC_DENIED;
-#endif
+			return SVC_DENIED;
 	}
-	dprintk("%s: flavour %d returning error %d\n", __FUNCTION__, flavour, retval);
-	return retval;
+	return SVC_OK;
 }
 
 /*
@@ -321,5 +183,5 @@ static struct svc_program nfs4_callback_program = {
 	.pg_name = "NFSv4 callback",			/* service name */
 	.pg_class = "nfs",				/* authentication class */
 	.pg_stats = &nfs4_callback_stats,
-	.pg_authenticate = nfs_callback_auth,
+	.pg_authenticate = nfs_callback_authenticate,
 };
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 96c0ea8f60ce..9a11aa39e2e4 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -79,9 +79,9 @@ void expkey_put(struct cache_head *item, struct cache_detail *cd)
 	}
 }
 
-void expkey_request(struct cache_detail *cd,
-		    struct cache_head *h,
-		    char **bpp, int *blen)
+static void expkey_request(struct cache_detail *cd,
+			   struct cache_head *h,
+			   char **bpp, int *blen)
 {
 	/* client fsidtype \xfsid */
 	struct svc_expkey *ek = container_of(h, struct svc_expkey, h);
@@ -95,7 +95,7 @@ void expkey_request(struct cache_detail *cd,
 }
 
 static struct svc_expkey *svc_expkey_lookup(struct svc_expkey *, int);
-int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
+static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
 {
 	/* client fsidtype fsid [path] */
 	char *buf;
@@ -284,9 +284,9 @@ void svc_export_put(struct cache_head *item, struct cache_detail *cd)
 	}
 }
 
-void svc_export_request(struct cache_detail *cd,
-			struct cache_head *h,
-			char **bpp, int *blen)
+static void svc_export_request(struct cache_detail *cd,
+			       struct cache_head *h,
+			       char **bpp, int *blen)
 {
 	/*  client path */
 	struct svc_export *exp = container_of(h, struct svc_export, h);
@@ -340,7 +340,7 @@ static int check_export(struct inode *inode, int flags)
 
 }
 
-int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
+static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 {
 	/* client path expiry [flags anonuid anongid fsid] */
 	char *buf;
@@ -510,8 +510,8 @@ exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
 	return ek;
 }
 
-int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv, 
-		struct svc_export *exp)
+static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
+		       struct svc_export *exp)
 {
 	struct svc_expkey key, *ek;
 
@@ -999,7 +999,7 @@ static void e_stop(struct seq_file *m, void *p)
 	exp_readunlock();
 }
 
-struct flags {
+static struct flags {
 	int flag;
 	char *name[2];
 } expflags[] = {
diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
index 3397bec47085..7b889ff15ae6 100644
--- a/fs/nfsd/lockd.c
+++ b/fs/nfsd/lockd.c
@@ -60,7 +60,7 @@ nlm_fclose(struct file *filp)
 	fput(filp);
 }
 
-struct nlmsvc_binding		nfsd_nlm_ops = {
+static struct nlmsvc_binding	nfsd_nlm_ops = {
 	.fopen		= nlm_fopen,		/* open file for locking */
 	.fclose		= nlm_fclose,		/* close file */
 };
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 941881de48a1..11f806835c5a 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -801,6 +801,11 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp,
 	if (isdotent(name, namlen)) {
 		if (namlen == 2) {
 			dchild = dget_parent(dparent);
+			if (dchild == dparent) {
+				/* filesystem root - cannot return filehandle for ".." */
+				dput(dchild);
+				return 1;
+			}
 		} else
 			dchild = dget(dparent);
 	} else
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index a3236dfedf98..119e4d4495b8 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/spinlock.h>
+#include <linux/list.h>
 
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
@@ -30,15 +31,8 @@
 #define HASHSIZE		64
 #define REQHASH(xid)		((((xid) >> 24) ^ (xid)) & (HASHSIZE-1))
 
-struct nfscache_head {
-	struct svc_cacherep *	next;
-	struct svc_cacherep *	prev;
-};
-
-static struct nfscache_head *	hash_list;
-static struct svc_cacherep *	lru_head;
-static struct svc_cacherep *	lru_tail;
-static struct svc_cacherep *	nfscache;
+static struct hlist_head *	hash_list;
+static struct list_head 	lru_head;
 static int			cache_disabled = 1;
 
 static int	nfsd_cache_append(struct svc_rqst *rqstp, struct kvec *vec);
@@ -54,46 +48,32 @@ void
 nfsd_cache_init(void)
 {
 	struct svc_cacherep	*rp;
-	struct nfscache_head	*rh;
-	size_t			i;
-	unsigned long		order;
-
-
-	i = CACHESIZE * sizeof (struct svc_cacherep);
-	for (order = 0; (PAGE_SIZE << order) < i; order++)
-		;
-	nfscache = (struct svc_cacherep *)
-		__get_free_pages(GFP_KERNEL, order);
-	if (!nfscache) {
-		printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for reply cache\n", i);
-		return;
+	int			i;
+
+	INIT_LIST_HEAD(&lru_head);
+	i = CACHESIZE;
+	while(i) {
+		rp = kmalloc(sizeof(*rp), GFP_KERNEL);
+		if (!rp) break;
+		list_add(&rp->c_lru, &lru_head);
+		rp->c_state = RC_UNUSED;
+		rp->c_type = RC_NOCACHE;
+		INIT_HLIST_NODE(&rp->c_hash);
+		i--;
 	}
-	memset(nfscache, 0, i);
 
-	i = HASHSIZE * sizeof (struct nfscache_head);
-	hash_list = kmalloc (i, GFP_KERNEL);
+	if (i)
+		printk (KERN_ERR "nfsd: cannot allocate all %d cache entries, only got %d\n",
+			CACHESIZE, CACHESIZE-i);
+
+	hash_list = kmalloc (HASHSIZE * sizeof(struct hlist_head), GFP_KERNEL);
 	if (!hash_list) {
-		free_pages ((unsigned long)nfscache, order);
-		nfscache = NULL;
-		printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for hash list\n", i);
+		nfsd_cache_shutdown();
+		printk (KERN_ERR "nfsd: cannot allocate %Zd bytes for hash list\n",
+			HASHSIZE * sizeof(struct hlist_head));
 		return;
 	}
-
-	for (i = 0, rh = hash_list; i < HASHSIZE; i++, rh++)
-		rh->next = rh->prev = (struct svc_cacherep *) rh;
-
-	for (i = 0, rp = nfscache; i < CACHESIZE; i++, rp++) {
-		rp->c_state = RC_UNUSED;
-		rp->c_type = RC_NOCACHE;
-		rp->c_hash_next =
-		rp->c_hash_prev = rp;
-		rp->c_lru_next = rp + 1;
-		rp->c_lru_prev = rp - 1;
-	}
-	lru_head = nfscache;
-	lru_tail = nfscache + CACHESIZE - 1;
-	lru_head->c_lru_prev = NULL;
-	lru_tail->c_lru_next = NULL;
+	memset(hash_list, 0, HASHSIZE * sizeof(struct hlist_head));
 
 	cache_disabled = 0;
 }
@@ -102,48 +82,30 @@ void
 nfsd_cache_shutdown(void)
 {
 	struct svc_cacherep	*rp;
-	size_t			i;
-	unsigned long		order;
 
-	for (rp = lru_head; rp; rp = rp->c_lru_next) {
+	while (!list_empty(&lru_head)) {
+		rp = list_entry(lru_head.next, struct svc_cacherep, c_lru);
 		if (rp->c_state == RC_DONE && rp->c_type == RC_REPLBUFF)
 			kfree(rp->c_replvec.iov_base);
+		list_del(&rp->c_lru);
+		kfree(rp);
 	}
 
 	cache_disabled = 1;
 
-	i = CACHESIZE * sizeof (struct svc_cacherep);
-	for (order = 0; (PAGE_SIZE << order) < i; order++)
-		;
-	free_pages ((unsigned long)nfscache, order);
-	nfscache = NULL;
-	kfree (hash_list);
+	if (hash_list)
+		kfree (hash_list);
 	hash_list = NULL;
 }
 
 /*
- * Move cache entry to front of LRU list
+ * Move cache entry to end of LRU list
  */
 static void
-lru_put_front(struct svc_cacherep *rp)
+lru_put_end(struct svc_cacherep *rp)
 {
-	struct svc_cacherep	*prev = rp->c_lru_prev,
-				*next = rp->c_lru_next;
-
-	if (prev)
-		prev->c_lru_next = next;
-	else
-		lru_head = next;
-	if (next)
-		next->c_lru_prev = prev;
-	else
-		lru_tail = prev;
-
-	rp->c_lru_next = lru_head;
-	rp->c_lru_prev = NULL;
-	if (lru_head)
-		lru_head->c_lru_prev = rp;
-	lru_head = rp;
+	list_del(&rp->c_lru);
+	list_add_tail(&rp->c_lru, &lru_head);
 }
 
 /*
@@ -152,17 +114,8 @@ lru_put_front(struct svc_cacherep *rp)
 static void
 hash_refile(struct svc_cacherep *rp)
 {
-	struct svc_cacherep	*prev = rp->c_hash_prev,
-				*next = rp->c_hash_next;
-	struct nfscache_head	*head = hash_list + REQHASH(rp->c_xid);
-
-	prev->c_hash_next = next;
-	next->c_hash_prev = prev;
-
-	rp->c_hash_next = head->next;
-	rp->c_hash_prev = (struct svc_cacherep *) head;
-	head->next->c_hash_prev = rp;
-	head->next = rp;
+	hlist_del_init(&rp->c_hash);
+	hlist_add_head(&rp->c_hash, hash_list + REQHASH(rp->c_xid));
 }
 
 /*
@@ -173,7 +126,9 @@ hash_refile(struct svc_cacherep *rp)
 int
 nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
 {
-	struct svc_cacherep	*rh, *rp;
+	struct hlist_node	*hn;
+	struct hlist_head 	*rh;
+	struct svc_cacherep	*rp;
 	u32			xid = rqstp->rq_xid,
 				proto =  rqstp->rq_prot,
 				vers = rqstp->rq_vers,
@@ -190,8 +145,8 @@ nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
 	spin_lock(&cache_lock);
 	rtn = RC_DOIT;
 
-	rp = rh = (struct svc_cacherep *) &hash_list[REQHASH(xid)];
-	while ((rp = rp->c_hash_next) != rh) {
+	rh = &hash_list[REQHASH(xid)];
+	hlist_for_each_entry(rp, hn, rh, c_hash) {
 		if (rp->c_state != RC_UNUSED &&
 		    xid == rp->c_xid && proc == rp->c_proc &&
 		    proto == rp->c_prot && vers == rp->c_vers &&
@@ -206,7 +161,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
 	/* This loop shouldn't take more than a few iterations normally */
 	{
 	int	safe = 0;
-	for (rp = lru_tail; rp; rp = rp->c_lru_prev) {
+	list_for_each_entry(rp, &lru_head, c_lru) {
 		if (rp->c_state != RC_INPROG)
 			break;
 		if (safe++ > CACHESIZE) {
@@ -254,7 +209,7 @@ found_entry:
 	/* We found a matching entry which is either in progress or done. */
 	age = jiffies - rp->c_timestamp;
 	rp->c_timestamp = jiffies;
-	lru_put_front(rp);
+	lru_put_end(rp);
 
 	rtn = RC_DROPIT;
 	/* Request being processed or excessive rexmits */
@@ -343,7 +298,7 @@ nfsd_cache_update(struct svc_rqst *rqstp, int cachetype, u32 *statp)
 		break;
 	}
 	spin_lock(&cache_lock);
-	lru_put_front(rp);
+	lru_put_end(rp);
 	rp->c_secure = rqstp->rq_secure;
 	rp->c_type = cachetype;
 	rp->c_state = RC_DONE;
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 0cf106106674..7a3e397b4ed3 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -41,7 +41,7 @@ extern struct export_operations export_op_default;
  * if not, require that we can walk up to exp->ex_dentry
  * doing some checks on the 'x' bits
  */
-int nfsd_acceptable(void *expv, struct dentry *dentry)
+static int nfsd_acceptable(void *expv, struct dentry *dentry)
 {
 	struct svc_export *exp = expv;
 	int rv;
@@ -280,8 +280,8 @@ out:
  * an inode.  In this case a call to fh_update should be made
  * before the fh goes out on the wire ...
  */
-inline int _fh_update(struct dentry *dentry, struct svc_export *exp,
-		      __u32 *datap, int *maxsize)
+static inline int _fh_update(struct dentry *dentry, struct svc_export *exp,
+			     __u32 *datap, int *maxsize)
 {
 	struct export_operations *nop = exp->ex_mnt->mnt_sb->s_export_op;
 	
@@ -297,8 +297,9 @@ inline int _fh_update(struct dentry *dentry, struct svc_export *exp,
 /*
  * for composing old style file handles
  */
-inline void _fh_update_old(struct dentry *dentry, struct svc_export *exp,
-			   struct knfsd_fh *fh)
+static inline void _fh_update_old(struct dentry *dentry,
+				  struct svc_export *exp,
+				  struct knfsd_fh *fh)
 {
 	fh->ofh_ino = ino_t_to_u32(dentry->d_inode->i_ino);
 	fh->ofh_generation = dentry->d_inode->i_generation;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 291dd8cd3214..f7e41965b043 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -60,7 +60,7 @@ struct nfsd_list {
 	struct list_head 	list;
 	struct task_struct	*task;
 };
-struct list_head nfsd_list = LIST_HEAD_INIT(nfsd_list);
+static struct list_head nfsd_list = LIST_HEAD_INIT(nfsd_list);
 
 /*
  * Maximum number of nfsd processes
@@ -378,4 +378,6 @@ struct svc_program		nfsd_program = {
 	.pg_name		= "nfsd",		/* program name */
 	.pg_class		= "nfsd",		/* authentication class */
 	.pg_stats		= &nfsd_svcstats,	/* version table */
+	.pg_authenticate	= &svc_set_client,	/* export authentication */
+
 };
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index a5a58a1dba0a..e86ee9ac6654 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -707,8 +707,8 @@ nfsd_close(struct file *filp)
  * As this calls fsync (not fdatasync) there is no need for a write_inode
  * after it.
  */
-inline void nfsd_dosync(struct file *filp, struct dentry *dp, 
-			struct file_operations *fop)
+static inline void nfsd_dosync(struct file *filp, struct dentry *dp,
+			       struct file_operations *fop)
 {
 	struct inode *inode = dp->d_inode;
 	int (*fsync) (struct file *, struct dentry *, int);
@@ -720,7 +720,7 @@ inline void nfsd_dosync(struct file *filp, struct dentry *dp,
 }
 	
 
-void
+static void
 nfsd_sync(struct file *filp)
 {
 	struct inode *inode = filp->f_dentry->d_inode;
@@ -730,7 +730,7 @@ nfsd_sync(struct file *filp)
 	up(&inode->i_sem);
 }
 
-void
+static void
 nfsd_sync_dir(struct dentry *dp)
 {
 	nfsd_dosync(NULL, dp, dp->d_inode->i_fop);