Automerge with /usr/src/ntfs-2.6.git.

68 files changed, 1833 insertions, 1019 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index a7c0cc3..8157f2e 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -50,6 +50,23 @@ config EXT2_FS_SECURITY
 	  If you are not using a security module that requires using
 	  extended attributes for file security labels, say N.
 
+config EXT2_FS_XIP
+	bool "Ext2 execute in place support"
+	depends on EXT2_FS
+	help
+	  Execute in place can be used on memory-backed block devices. If you
+	  enable this option, you can select to mount block devices which are
+	  capable of this feature without using the page cache.
+
+	  If you do not use a block device that is capable of using this,
+	  or if unsure, say N.
+
+config FS_XIP
+# execute in place
+	bool
+	depends on EXT2_FS_XIP
+	default y
+
 config EXT3_FS
 	tristate "Ext3 journalling file system support"
 	help
@@ -1413,6 +1430,8 @@ config NFSD_V4
 	bool "Provide NFSv4 server support (EXPERIMENTAL)"
 	depends on NFSD_V3 && EXPERIMENTAL
 	select NFSD_TCP
+	select CRYPTO_MD5
+	select CRYPTO
 	help
 	  If you would like to include the NFSv4 server as well as the NFSv2
 	  and NFSv3 servers, say Y here.  This feature is experimental, and
diff --git a/fs/block_dev.c b/fs/block_dev.c
index c0cbd1b..e0df94c 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -777,8 +777,7 @@ static ssize_t blkdev_file_aio_write(struct kiocb *iocb, const char __user *buf,
 	return generic_file_aio_write_nolock(iocb, &local_iov, 1, &iocb->ki_pos);
 }
 
-static int block_ioctl(struct inode *inode, struct file *file, unsigned cmd,
-			unsigned long arg)
+static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 {
 	return blkdev_ioctl(file->f_mapping->host, file, cmd, arg);
 }
@@ -803,7 +802,7 @@ struct file_operations def_blk_fops = {
   	.aio_write	= blkdev_file_aio_write, 
 	.mmap		= generic_file_mmap,
 	.fsync		= block_fsync,
-	.ioctl		= block_ioctl,
+	.unlocked_ioctl	= block_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= compat_blkdev_ioctl,
 #endif
diff --git a/fs/buffer.c b/fs/buffer.c
index 0befa72..13e5938 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -331,7 +331,7 @@ int file_fsync(struct file *filp, struct dentry *dentry, int datasync)
 	return ret;
 }
 
-asmlinkage long sys_fsync(unsigned int fd)
+static long do_fsync(unsigned int fd, int datasync)
 {
 	struct file * file;
 	struct address_space *mapping;
@@ -342,14 +342,14 @@ asmlinkage long sys_fsync(unsigned int fd)
 	if (!file)
 		goto out;
 
-	mapping = file->f_mapping;
-
 	ret = -EINVAL;
 	if (!file->f_op || !file->f_op->fsync) {
 		/* Why?  We can still call filemap_fdatawrite */
 		goto out_putf;
 	}
 
+	mapping = file->f_mapping;
+
 	current->flags |= PF_SYNCWRITE;
 	ret = filemap_fdatawrite(mapping);
 
@@ -358,7 +358,7 @@ asmlinkage long sys_fsync(unsigned int fd)
 	 * which could cause livelocks in fsync_buffers_list
 	 */
 	down(&mapping->host->i_sem);
-	err = file->f_op->fsync(file, file->f_dentry, 0);
+	err = file->f_op->fsync(file, file->f_dentry, datasync);
 	if (!ret)
 		ret = err;
 	up(&mapping->host->i_sem);
@@ -373,39 +373,14 @@ out:
 	return ret;
 }
 
-asmlinkage long sys_fdatasync(unsigned int fd)
+asmlinkage long sys_fsync(unsigned int fd)
 {
-	struct file * file;
-	struct address_space *mapping;
-	int ret, err;
-
-	ret = -EBADF;
-	file = fget(fd);
-	if (!file)
-		goto out;
-
-	ret = -EINVAL;
-	if (!file->f_op || !file->f_op->fsync)
-		goto out_putf;
-
-	mapping = file->f_mapping;
-
-	current->flags |= PF_SYNCWRITE;
-	ret = filemap_fdatawrite(mapping);
-	down(&mapping->host->i_sem);
-	err = file->f_op->fsync(file, file->f_dentry, 1);
-	if (!ret)
-		ret = err;
-	up(&mapping->host->i_sem);
-	err = filemap_fdatawait(mapping);
-	if (!ret)
-		ret = err;
-	current->flags &= ~PF_SYNCWRITE;
+	return do_fsync(fd, 0);
+}
 
-out_putf:
-	fput(file);
-out:
-	return ret;
+asmlinkage long sys_fdatasync(unsigned int fd)
+{
+	return do_fsync(fd, 1);
 }
 
 /*
@@ -1951,7 +1926,6 @@ static int __block_prepare_write(struct inode *inode, struct page *page,
 			if (err)
 				break;
 			if (buffer_new(bh)) {
-				clear_buffer_new(bh);
 				unmap_underlying_metadata(bh->b_bdev,
 							bh->b_blocknr);
 				if (PageUptodate(page)) {
@@ -1993,9 +1967,14 @@ static int __block_prepare_write(struct inode *inode, struct page *page,
 		if (!buffer_uptodate(*wait_bh))
 			err = -EIO;
 	}
-	if (!err)
-		return err;
-
+	if (!err) {
+		bh = head;
+		do {
+			if (buffer_new(bh))
+				clear_buffer_new(bh);
+		} while ((bh = bh->b_this_page) != head);
+		return 0;
+	}
 	/* Error case: */
 	/*
 	 * Zero out any newly allocated blocks to avoid exposing stale
diff --git a/fs/char_dev.c b/fs/char_dev.c
index c1e3537..e82aac9 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -56,10 +56,21 @@ int get_chrdev_list(char *page)
 
 	down(&chrdevs_lock);
 	for (i = 0; i < ARRAY_SIZE(chrdevs) ; i++) {
-		for (cd = chrdevs[i]; cd; cd = cd->next)
+		for (cd = chrdevs[i]; cd; cd = cd->next) {
+			/*
+			 * if the current name, plus the 5 extra characters
+			 * in the device line for this entry
+			 * would run us off the page, we're done
+			 */
+			if ((len+strlen(cd->name) + 5) >= PAGE_SIZE)
+				goto page_full;
+
+
 			len += sprintf(page+len, "%3d %s\n",
 				       cd->major, cd->name);
+		}
 	}
+page_full:
 	up(&chrdevs_lock);
 
 	return len;
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b529786..a86ac4a 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -110,16 +110,6 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent)
 	return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files);
 }
 
-static struct dentry * get_dentry(struct dentry *parent, const char *name)
-{               
-	struct qstr qstr;
-
-	qstr.name = name;
-	qstr.len = strlen(name);
-	qstr.hash = full_name_hash(name,qstr.len);
-	return lookup_hash(&qstr,parent);
-}               
-
 static struct super_block *debug_get_sb(struct file_system_type *fs_type,
 				        int flags, const char *dev_name,
 					void *data)
@@ -157,7 +147,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
 
 	*dentry = NULL;
 	down(&parent->d_inode->i_sem);
-	*dentry = get_dentry (parent, name);
+	*dentry = lookup_one_len(name, parent, strlen(name));
 	if (!IS_ERR(dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = debugfs_mkdir(parent->d_inode, *dentry, mode);
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 1d55e7e..0d06097 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -215,7 +215,7 @@ static struct page *dio_get_page(struct dio *dio)
 static void dio_complete(struct dio *dio, loff_t offset, ssize_t bytes)
 {
 	if (dio->end_io && dio->result)
-		dio->end_io(dio->inode, offset, bytes, dio->map_bh.b_private);
+		dio->end_io(dio->iocb, offset, bytes, dio->map_bh.b_private);
 	if (dio->lock_type == DIO_LOCKING)
 		up_read(&dio->inode->i_alloc_sem);
 }
diff --git a/fs/dquot.c b/fs/dquot.c
index 3995ce7..37212b0 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1519,14 +1519,22 @@ out_path:
  * This function is used when filesystem needs to initialize quotas
  * during mount time.
  */
-int vfs_quota_on_mount(int type, int format_id, struct dentry *dentry)
+int vfs_quota_on_mount(struct super_block *sb, char *qf_name,
+		int format_id, int type)
 {
+	struct dentry *dentry;
 	int error;
 
+	dentry = lookup_one_len(qf_name, sb->s_root, strlen(qf_name));
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+
 	error = security_quota_on(dentry);
-	if (error)
-		return error;
-	return vfs_quota_on_inode(dentry->d_inode, type, format_id);
+	if (!error)
+		error = vfs_quota_on_inode(dentry->d_inode, type, format_id);
+
+	dput(dentry);
+	return error;
 }
 
 /* Generic routine for getting common part of quota structure */
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 9900e33..6ab1dd0 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -101,57 +101,6 @@
 /* Maximum number of poll wake up nests we are allowing */
 #define EP_MAX_POLLWAKE_NESTS 4
 
-/* Macro to allocate a "struct epitem" from the slab cache */
-#define EPI_MEM_ALLOC()	(struct epitem *) kmem_cache_alloc(epi_cache, SLAB_KERNEL)
-
-/* Macro to free a "struct epitem" to the slab cache */
-#define EPI_MEM_FREE(p) kmem_cache_free(epi_cache, p)
-
-/* Macro to allocate a "struct eppoll_entry" from the slab cache */
-#define PWQ_MEM_ALLOC()	(struct eppoll_entry *) kmem_cache_alloc(pwq_cache, SLAB_KERNEL)
-
-/* Macro to free a "struct eppoll_entry" to the slab cache */
-#define PWQ_MEM_FREE(p) kmem_cache_free(pwq_cache, p)
-
-/* Fast test to see if the file is an evenpoll file */
-#define IS_FILE_EPOLL(f) ((f)->f_op == &eventpoll_fops)
-
-/* Setup the structure that is used as key for the rb-tree */
-#define EP_SET_FFD(p, f, d) do { (p)->file = (f); (p)->fd = (d); } while (0)
-
-/* Compare rb-tree keys */
-#define EP_CMP_FFD(p1, p2) ((p1)->file > (p2)->file ? +1: \
-			    ((p1)->file < (p2)->file ? -1: (p1)->fd - (p2)->fd))
-
-/* Special initialization for the rb-tree node to detect linkage */
-#define EP_RB_INITNODE(n) (n)->rb_parent = (n)
-
-/* Removes a node from the rb-tree and marks it for a fast is-linked check */
-#define EP_RB_ERASE(n, r) do { rb_erase(n, r); (n)->rb_parent = (n); } while (0)
-
-/* Fast check to verify that the item is linked to the main rb-tree */
-#define EP_RB_LINKED(n) ((n)->rb_parent != (n))
-
-/*
- * Remove the item from the list and perform its initialization.
- * This is useful for us because we can test if the item is linked
- * using "EP_IS_LINKED(p)".
- */
-#define EP_LIST_DEL(p) do { list_del(p); INIT_LIST_HEAD(p); } while (0)
-
-/* Tells us if the item is currently linked */
-#define EP_IS_LINKED(p) (!list_empty(p))
-
-/* Get the "struct epitem" from a wait queue pointer */
-#define EP_ITEM_FROM_WAIT(p) ((struct epitem *) container_of(p, struct eppoll_entry, wait)->base)
-
-/* Get the "struct epitem" from an epoll queue wrapper */
-#define EP_ITEM_FROM_EPQUEUE(p) (container_of(p, struct ep_pqueue, pt)->epi)
-
-/* Tells if the epoll_ctl(2) operation needs an event copy from userspace */
-#define EP_OP_HASH_EVENT(op) ((op) != EPOLL_CTL_DEL)
-
-
 struct epoll_filefd {
 	struct file *file;
 	int fd;
@@ -357,6 +306,82 @@ static struct dentry_operations eventpollfs_dentry_operations = {
 
 
 
+/* Fast test to see if the file is an evenpoll file */
+static inline int is_file_epoll(struct file *f)
+{
+	return f->f_op == &eventpoll_fops;
+}
+
+/* Setup the structure that is used as key for the rb-tree */
+static inline void ep_set_ffd(struct epoll_filefd *ffd,
+			      struct file *file, int fd)
+{
+	ffd->file = file;
+	ffd->fd = fd;
+}
+
+/* Compare rb-tree keys */
+static inline int ep_cmp_ffd(struct epoll_filefd *p1,
+			     struct epoll_filefd *p2)
+{
+	return (p1->file > p2->file ? +1:
+	        (p1->file < p2->file ? -1 : p1->fd - p2->fd));
+}
+
+/* Special initialization for the rb-tree node to detect linkage */
+static inline void ep_rb_initnode(struct rb_node *n)
+{
+	n->rb_parent = n;
+}
+
+/* Removes a node from the rb-tree and marks it for a fast is-linked check */
+static inline void ep_rb_erase(struct rb_node *n, struct rb_root *r)
+{
+	rb_erase(n, r);
+	n->rb_parent = n;
+}
+
+/* Fast check to verify that the item is linked to the main rb-tree */
+static inline int ep_rb_linked(struct rb_node *n)
+{
+	return n->rb_parent != n;
+}
+
+/*
+ * Remove the item from the list and perform its initialization.
+ * This is useful for us because we can test if the item is linked
+ * using "ep_is_linked(p)".
+ */
+static inline void ep_list_del(struct list_head *p)
+{
+	list_del(p);
+	INIT_LIST_HEAD(p);
+}
+
+/* Tells us if the item is currently linked */
+static inline int ep_is_linked(struct list_head *p)
+{
+	return !list_empty(p);
+}
+
+/* Get the "struct epitem" from a wait queue pointer */
+static inline struct epitem * ep_item_from_wait(wait_queue_t *p)
+{
+	return container_of(p, struct eppoll_entry, wait)->base;
+}
+
+/* Get the "struct epitem" from an epoll queue wrapper */
+static inline struct epitem * ep_item_from_epqueue(poll_table *p)
+{
+	return container_of(p, struct ep_pqueue, pt)->epi;
+}
+
+/* Tells if the epoll_ctl(2) operation needs an event copy from userspace */
+static inline int ep_op_hash_event(int op)
+{
+	return op != EPOLL_CTL_DEL;
+}
+
 /* Initialize the poll safe wake up structure */
 static void ep_poll_safewake_init(struct poll_safewake *psw)
 {
@@ -456,7 +481,7 @@ void eventpoll_release_file(struct file *file)
 		epi = list_entry(lsthead->next, struct epitem, fllink);
 
 		ep = epi->ep;
-		EP_LIST_DEL(&epi->fllink);
+		ep_list_del(&epi->fllink);
 		down_write(&ep->sem);
 		ep_remove(ep, epi);
 		up_write(&ep->sem);
@@ -534,7 +559,7 @@ sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event)
 		     current, epfd, op, fd, event));
 
 	error = -EFAULT;
-	if (EP_OP_HASH_EVENT(op) &&
+	if (ep_op_hash_event(op) &&
 	    copy_from_user(&epds, event, sizeof(struct epoll_event)))
 		goto eexit_1;
 
@@ -560,7 +585,7 @@ sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event)
 	 * adding an epoll file descriptor inside itself.
 	 */
 	error = -EINVAL;
-	if (file == tfile || !IS_FILE_EPOLL(file))
+	if (file == tfile || !is_file_epoll(file))
 		goto eexit_3;
 
 	/*
@@ -656,7 +681,7 @@ asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
 	 * the user passed to us _is_ an eventpoll file.
 	 */
 	error = -EINVAL;
-	if (!IS_FILE_EPOLL(file))
+	if (!is_file_epoll(file))
 		goto eexit_2;
 
 	/*
@@ -831,11 +856,11 @@ static struct epitem *ep_find(struct eventpoll *ep, struct file *file, int fd)
 	struct epitem *epi, *epir = NULL;
 	struct epoll_filefd ffd;
 
-	EP_SET_FFD(&ffd, file, fd);
+	ep_set_ffd(&ffd, file, fd);
 	read_lock_irqsave(&ep->lock, flags);
 	for (rbp = ep->rbr.rb_node; rbp; ) {
 		epi = rb_entry(rbp, struct epitem, rbn);
-		kcmp = EP_CMP_FFD(&ffd, &epi->ffd);
+		kcmp = ep_cmp_ffd(&ffd, &epi->ffd);
 		if (kcmp > 0)
 			rbp = rbp->rb_right;
 		else if (kcmp < 0)
@@ -875,7 +900,7 @@ static void ep_release_epitem(struct epitem *epi)
 {
 
 	if (atomic_dec_and_test(&epi->usecnt))
-		EPI_MEM_FREE(epi);
+		kmem_cache_free(epi_cache, epi);
 }
 
 
@@ -886,10 +911,10 @@ static void ep_release_epitem(struct epitem *epi)
 static void ep_ptable_queue_proc(struct file *file, wait_queue_head_t *whead,
 				 poll_table *pt)
 {
-	struct epitem *epi = EP_ITEM_FROM_EPQUEUE(pt);
+	struct epitem *epi = ep_item_from_epqueue(pt);
 	struct eppoll_entry *pwq;
 
-	if (epi->nwait >= 0 && (pwq = PWQ_MEM_ALLOC())) {
+	if (epi->nwait >= 0 && (pwq = kmem_cache_alloc(pwq_cache, SLAB_KERNEL))) {
 		init_waitqueue_func_entry(&pwq->wait, ep_poll_callback);
 		pwq->whead = whead;
 		pwq->base = epi;
@@ -912,7 +937,7 @@ static void ep_rbtree_insert(struct eventpoll *ep, struct epitem *epi)
 	while (*p) {
 		parent = *p;
 		epic = rb_entry(parent, struct epitem, rbn);
-		kcmp = EP_CMP_FFD(&epi->ffd, &epic->ffd);
+		kcmp = ep_cmp_ffd(&epi->ffd, &epic->ffd);
 		if (kcmp > 0)
 			p = &parent->rb_right;
 		else
@@ -932,17 +957,17 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 	struct ep_pqueue epq;
 
 	error = -ENOMEM;
-	if (!(epi = EPI_MEM_ALLOC()))
+	if (!(epi = kmem_cache_alloc(epi_cache, SLAB_KERNEL)))
 		goto eexit_1;
 
 	/* Item initialization follow here ... */
-	EP_RB_INITNODE(&epi->rbn);
+	ep_rb_initnode(&epi->rbn);
 	INIT_LIST_HEAD(&epi->rdllink);
 	INIT_LIST_HEAD(&epi->fllink);
 	INIT_LIST_HEAD(&epi->txlink);
 	INIT_LIST_HEAD(&epi->pwqlist);
 	epi->ep = ep;
-	EP_SET_FFD(&epi->ffd, tfile, fd);
+	ep_set_ffd(&epi->ffd, tfile, fd);
 	epi->event = *event;
 	atomic_set(&epi->usecnt, 1);
 	epi->nwait = 0;
@@ -978,7 +1003,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 	ep_rbtree_insert(ep, epi);
 
 	/* If the file is already "ready" we drop it inside the ready list */
-	if ((revents & event->events) && !EP_IS_LINKED(&epi->rdllink)) {
+	if ((revents & event->events) && !ep_is_linked(&epi->rdllink)) {
 		list_add_tail(&epi->rdllink, &ep->rdllist);
 
 		/* Notify waiting tasks that events are available */
@@ -1007,11 +1032,11 @@ eexit_2:
 	 * allocated wait queue.
 	 */
 	write_lock_irqsave(&ep->lock, flags);
-	if (EP_IS_LINKED(&epi->rdllink))
-		EP_LIST_DEL(&epi->rdllink);
+	if (ep_is_linked(&epi->rdllink))
+		ep_list_del(&epi->rdllink);
 	write_unlock_irqrestore(&ep->lock, flags);
 
-	EPI_MEM_FREE(epi);
+	kmem_cache_free(epi_cache, epi);
 eexit_1:
 	return error;
 }
@@ -1050,14 +1075,14 @@ static int ep_modify(struct eventpoll *ep, struct epitem *epi, struct epoll_even
 	 * If the item is not linked to the hash it means that it's on its
 	 * way toward the removal. Do nothing in this case.
 	 */
-	if (EP_RB_LINKED(&epi->rbn)) {
+	if (ep_rb_linked(&epi->rbn)) {
 		/*
 		 * If the item is "hot" and it is not registered inside the ready
 		 * list, push it inside. If the item is not "hot" and it is currently
 		 * registered inside the ready list, unlink it.
 		 */
 		if (revents & event->events) {
-			if (!EP_IS_LINKED(&epi->rdllink)) {
+			if (!ep_is_linked(&epi->rdllink)) {
 				list_add_tail(&epi->rdllink, &ep->rdllist);
 
 				/* Notify waiting tasks that events are available */
@@ -1097,9 +1122,9 @@ static void ep_unregister_pollwait(struct eventpoll *ep, struct epitem *epi)
 		while (!list_empty(lsthead)) {
 			pwq = list_entry(lsthead->next, struct eppoll_entry, llink);
 
-			EP_LIST_DEL(&pwq->llink);
+			ep_list_del(&pwq->llink);
 			remove_wait_queue(pwq->whead, &pwq->wait);
-			PWQ_MEM_FREE(pwq);
+			kmem_cache_free(pwq_cache, pwq);
 		}
 	}
 }
@@ -1118,7 +1143,7 @@ static int ep_unlink(struct eventpoll *ep, struct epitem *epi)
 	 * The check protect us from doing a double unlink ( crash ).
 	 */
 	error = -ENOENT;
-	if (!EP_RB_LINKED(&epi->rbn))
+	if (!ep_rb_linked(&epi->rbn))
 		goto eexit_1;
 
 	/*
@@ -1133,14 +1158,14 @@ static int ep_unlink(struct eventpoll *ep, struct epitem *epi)
 	 * This operation togheter with the above check closes the door to
 	 * double unlinks.
 	 */
-	EP_RB_ERASE(&epi->rbn, &ep->rbr);
+	ep_rb_erase(&epi->rbn, &ep->rbr);
 
 	/*
 	 * If the item we are going to remove is inside the ready file descriptors
 	 * we want to remove it from this list to avoid stale events.
 	 */
-	if (EP_IS_LINKED(&epi->rdllink))
-		EP_LIST_DEL(&epi->rdllink);
+	if (ep_is_linked(&epi->rdllink))
+		ep_list_del(&epi->rdllink);
 
 	error = 0;
 eexit_1:
@@ -1174,8 +1199,8 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
 
 	/* Remove the current item from the list of epoll hooks */
 	spin_lock(&file->f_ep_lock);
-	if (EP_IS_LINKED(&epi->fllink))
-		EP_LIST_DEL(&epi->fllink);
+	if (ep_is_linked(&epi->fllink))
+		ep_list_del(&epi->fllink);
 	spin_unlock(&file->f_ep_lock);
 
 	/* We need to acquire the write IRQ lock before calling ep_unlink() */
@@ -1210,7 +1235,7 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k
 {
 	int pwake = 0;
 	unsigned long flags;
-	struct epitem *epi = EP_ITEM_FROM_WAIT(wait);
+	struct epitem *epi = ep_item_from_wait(wait);
 	struct eventpoll *ep = epi->ep;
 
 	DNPRINTK(3, (KERN_INFO "[%p] eventpoll: poll_callback(%p) epi=%p ep=%p\n",
@@ -1228,7 +1253,7 @@ static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *k
 		goto is_disabled;
 
 	/* If this file is already in the ready list we exit soon */
-	if (EP_IS_LINKED(&epi->rdllink))
+	if (ep_is_linked(&epi->rdllink))
 		goto is_linked;
 
 	list_add_tail(&epi->rdllink, &ep->rdllist);
@@ -1307,7 +1332,7 @@ static int ep_collect_ready_items(struct eventpoll *ep, struct list_head *txlist
 		lnk = lnk->next;
 
 		/* If this file is already in the ready list we exit soon */
-		if (!EP_IS_LINKED(&epi->txlink)) {
+		if (!ep_is_linked(&epi->txlink)) {
 			/*
 			 * This is initialized in this way so that the default
 			 * behaviour of the reinjecting code will be to push back
@@ -1322,7 +1347,7 @@ static int ep_collect_ready_items(struct eventpoll *ep, struct list_head *txlist
 			/*
 			 * Unlink the item from the ready list.
 			 */
-			EP_LIST_DEL(&epi->rdllink);
+			ep_list_del(&epi->rdllink);
 		}
 	}
 
@@ -1401,7 +1426,7 @@ static void ep_reinject_items(struct eventpoll *ep, struct list_head *txlist)
 		epi = list_entry(txlist->next, struct epitem, txlink);
 
 		/* Unlink the current item from the transfer list */
-		EP_LIST_DEL(&epi->txlink);
+		ep_list_del(&epi->txlink);
 
 		/*
 		 * If the item is no more linked to the interest set, we don't
@@ -1410,8 +1435,8 @@ static void ep_reinject_items(struct eventpoll *ep, struct list_head *txlist)
 		 * item is set to have an Edge Triggered behaviour, we don't have
 		 * to push it back either.
 		 */
-		if (EP_RB_LINKED(&epi->rbn) && !(epi->event.events & EPOLLET) &&
-		    (epi->revents & epi->event.events) && !EP_IS_LINKED(&epi->rdllink)) {
+		if (ep_rb_linked(&epi->rbn) && !(epi->event.events & EPOLLET) &&
+		    (epi->revents & epi->event.events) && !ep_is_linked(&epi->rdllink)) {
 			list_add_tail(&epi->rdllink, &ep->rdllist);
 			ricnt++;
 		}
diff --git a/fs/exec.c b/fs/exec.c
index 3a4b35a..4887191 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -58,6 +58,9 @@
 
 int core_uses_pid;
 char core_pattern[65] = "core";
+int suid_dumpable = 0;
+
+EXPORT_SYMBOL(suid_dumpable);
 /* The maximal length of core_pattern is also specified in sysctl.c */
 
 static struct linux_binfmt *formats;
@@ -864,6 +867,9 @@ int flush_old_exec(struct linux_binprm * bprm)
 
 	if (current->euid == current->uid && current->egid == current->gid)
 		current->mm->dumpable = 1;
+	else
+		current->mm->dumpable = suid_dumpable;
+
 	name = bprm->filename;
 
 	/* Copies the binary name from after last slash */
@@ -884,7 +890,7 @@ int flush_old_exec(struct linux_binprm * bprm)
 	    permission(bprm->file->f_dentry->d_inode,MAY_READ, NULL) ||
 	    (bprm->interp_flags & BINPRM_FLAGS_ENFORCE_NONDUMP)) {
 		suid_keys(current);
-		current->mm->dumpable = 0;
+		current->mm->dumpable = suid_dumpable;
 	}
 
 	/* An exec changes our domain. We are no longer part of the thread
@@ -1432,6 +1438,8 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
 	struct inode * inode;
 	struct file * file;
 	int retval = 0;
+	int fsuid = current->fsuid;
+	int flag = 0;
 
 	binfmt = current->binfmt;
 	if (!binfmt || !binfmt->core_dump)
@@ -1441,6 +1449,16 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
 		up_write(&mm->mmap_sem);
 		goto fail;
 	}
+
+	/*
+	 *	We cannot trust fsuid as being the "true" uid of the
+	 *	process nor do we know its entire history. We only know it
+	 *	was tainted so we dump it as root in mode 2.
+	 */
+	if (mm->dumpable == 2) {	/* Setuid core dump mode */
+		flag = O_EXCL;		/* Stop rewrite attacks */
+		current->fsuid = 0;	/* Dump root private */
+	}
 	mm->dumpable = 0;
 	init_completion(&mm->core_done);
 	spin_lock_irq(&current->sighand->siglock);
@@ -1466,7 +1484,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
  	lock_kernel();
 	format_corename(corename, core_pattern, signr);
 	unlock_kernel();
-	file = filp_open(corename, O_CREAT | 2 | O_NOFOLLOW | O_LARGEFILE, 0600);
+	file = filp_open(corename, O_CREAT | 2 | O_NOFOLLOW | O_LARGEFILE | flag, 0600);
 	if (IS_ERR(file))
 		goto fail_unlock;
 	inode = file->f_dentry->d_inode;
@@ -1491,6 +1509,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
 close_fail:
 	filp_close(file, NULL);
 fail_unlock:
+	current->fsuid = fsuid;
 	complete_all(&mm->core_done);
 fail:
 	return retval;
diff --git a/fs/ext2/Makefile b/fs/ext2/Makefile
index ee240a1..c5d02da 100644
--- a/fs/ext2/Makefile
+++ b/fs/ext2/Makefile
@@ -10,3 +10,4 @@ ext2-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
 ext2-$(CONFIG_EXT2_FS_XATTR)	 += xattr.o xattr_user.o xattr_trusted.o
 ext2-$(CONFIG_EXT2_FS_POSIX_ACL) += acl.o
 ext2-$(CONFIG_EXT2_FS_SECURITY)	 += xattr_security.o
+ext2-$(CONFIG_EXT2_FS_XIP)	 += xip.o
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 25f4a64..213148c 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -396,12 +396,12 @@ static size_t
 ext2_xattr_list_acl_access(struct inode *inode, char *list, size_t list_size,
 			   const char *name, size_t name_len)
 {
-	const size_t size = sizeof(XATTR_NAME_ACL_ACCESS);
+	const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
 
 	if (!test_opt(inode->i_sb, POSIX_ACL))
 		return 0;
 	if (list && size <= list_size)
-		memcpy(list, XATTR_NAME_ACL_ACCESS, size);
+		memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
 	return size;
 }
 
@@ -409,12 +409,12 @@ static size_t
 ext2_xattr_list_acl_default(struct inode *inode, char *list, size_t list_size,
 			    const char *name, size_t name_len)
 {
-	const size_t size = sizeof(XATTR_NAME_ACL_DEFAULT);
+	const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
 
 	if (!test_opt(inode->i_sb, POSIX_ACL))
 		return 0;
 	if (list && size <= list_size)
-		memcpy(list, XATTR_NAME_ACL_DEFAULT, size);
+		memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
 	return size;
 }
 
@@ -506,14 +506,14 @@ ext2_xattr_set_acl_default(struct inode *inode, const char *name,
 }
 
 struct xattr_handler ext2_xattr_acl_access_handler = {
-	.prefix	= XATTR_NAME_ACL_ACCESS,
+	.prefix	= POSIX_ACL_XATTR_ACCESS,
 	.list	= ext2_xattr_list_acl_access,
 	.get	= ext2_xattr_get_acl_access,
 	.set	= ext2_xattr_set_acl_access,
 };
 
 struct xattr_handler ext2_xattr_acl_default_handler = {
-	.prefix	= XATTR_NAME_ACL_DEFAULT,
+	.prefix	= POSIX_ACL_XATTR_DEFAULT,
 	.list	= ext2_xattr_list_acl_default,
 	.get	= ext2_xattr_get_acl_default,
 	.set	= ext2_xattr_set_acl_default,
diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h
index fed96ae..0bde85b 100644
--- a/fs/ext2/acl.h
+++ b/fs/ext2/acl.h
@@ -4,7 +4,7 @@
   (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
 */
 
-#include <linux/xattr_acl.h>
+#include <linux/posix_acl_xattr.h>
 
 #define EXT2_ACL_VERSION	0x0001
 
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 8f0fd72..eed521d 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -147,9 +147,11 @@ extern struct file_operations ext2_dir_operations;
 /* file.c */
 extern struct inode_operations ext2_file_inode_operations;
 extern struct file_operations ext2_file_operations;
+extern struct file_operations ext2_xip_file_operations;
 
 /* inode.c */
 extern struct address_space_operations ext2_aops;
+extern struct address_space_operations ext2_aops_xip;
 extern struct address_space_operations ext2_nobh_aops;
 
 /* namei.c */
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index f5e8614..a484412 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -55,6 +55,20 @@ struct file_operations ext2_file_operations = {
 	.sendfile	= generic_file_sendfile,
 };
 
+#ifdef CONFIG_EXT2_FS_XIP
+struct file_operations ext2_xip_file_operations = {
+	.llseek		= generic_file_llseek,
+	.read		= xip_file_read,
+	.write		= xip_file_write,
+	.ioctl		= ext2_ioctl,
+	.mmap		= xip_file_mmap,
+	.open		= generic_file_open,
+	.release	= ext2_release_file,
+	.fsync		= ext2_sync_file,
+	.sendfile	= xip_file_sendfile,
+};
+#endif
+
 struct inode_operations ext2_file_inode_operations = {
 	.truncate	= ext2_truncate,
 #ifdef CONFIG_EXT2_FS_XATTR
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index a50d9db..53dceb0 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -33,6 +33,7 @@
 #include <linux/mpage.h>
 #include "ext2.h"
 #include "acl.h"
+#include "xip.h"
 
 MODULE_AUTHOR("Remy Card and others");
 MODULE_DESCRIPTION("Second Extended Filesystem");
@@ -594,6 +595,16 @@ out:
 	if (err)
 		goto cleanup;
 
+	if (ext2_use_xip(inode->i_sb)) {
+		/*
+		 * we need to clear the block
+		 */
+		err = ext2_clear_xip_target (inode,
+			le32_to_cpu(chain[depth-1].key));
+		if (err)
+			goto cleanup;
+	}
+
 	if (ext2_splice_branch(inode, iblock, chain, partial, left) < 0)
 		goto changed;
 
@@ -691,6 +702,11 @@ struct address_space_operations ext2_aops = {
 	.writepages		= ext2_writepages,
 };
 
+struct address_space_operations ext2_aops_xip = {
+	.bmap			= ext2_bmap,
+	.get_xip_page		= ext2_get_xip_page,
+};
+
 struct address_space_operations ext2_nobh_aops = {
 	.readpage		= ext2_readpage,
 	.readpages		= ext2_readpages,
@@ -910,7 +926,9 @@ void ext2_truncate (struct inode * inode)
 	iblock = (inode->i_size + blocksize-1)
 					>> EXT2_BLOCK_SIZE_BITS(inode->i_sb);
 
-	if (test_opt(inode->i_sb, NOBH))
+	if (mapping_is_xip(inode->i_mapping))
+		xip_truncate_page(inode->i_mapping, inode->i_size);
+	else if (test_opt(inode->i_sb, NOBH))
 		nobh_truncate_page(inode->i_mapping, inode->i_size);
 	else
 		block_truncate_page(inode->i_mapping,
@@ -1110,11 +1128,16 @@ void ext2_read_inode (struct inode * inode)
 
 	if (S_ISREG(inode->i_mode)) {
 		inode->i_op = &ext2_file_inode_operations;
-		inode->i_fop = &ext2_file_operations;
-		if (test_opt(inode->i_sb, NOBH))
+		if (ext2_use_xip(inode->i_sb)) {
+			inode->i_mapping->a_ops = &ext2_aops_xip;
+			inode->i_fop = &ext2_xip_file_operations;
+		} else if (test_opt(inode->i_sb, NOBH)) {
 			inode->i_mapping->a_ops = &ext2_nobh_aops;
-		else
+			inode->i_fop = &ext2_file_operations;
+		} else {
 			inode->i_mapping->a_ops = &ext2_aops;
+			inode->i_fop = &ext2_file_operations;
+		}
 	} else if (S_ISDIR(inode->i_mode)) {
 		inode->i_op = &ext2_dir_inode_operations;
 		inode->i_fop = &ext2_dir_operations;
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 3176b3d..c551395 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -34,6 +34,7 @@
 #include "ext2.h"
 #include "xattr.h"
 #include "acl.h"
+#include "xip.h"
 
 /*
  * Couple of helper functions - make the code slightly cleaner.
@@ -127,11 +128,16 @@ static int ext2_create (struct inode * dir, struct dentry * dentry, int mode, st
 	int err = PTR_ERR(inode);
 	if (!IS_ERR(inode)) {
 		inode->i_op = &ext2_file_inode_operations;
-		inode->i_fop = &ext2_file_operations;
-		if (test_opt(inode->i_sb, NOBH))
+		if (ext2_use_xip(inode->i_sb)) {
+			inode->i_mapping->a_ops = &ext2_aops_xip;
+			inode->i_fop = &ext2_xip_file_operations;
+		} else if (test_opt(inode->i_sb, NOBH)) {
 			inode->i_mapping->a_ops = &ext2_nobh_aops;
-		else
+			inode->i_fop = &ext2_file_operations;
+		} else {
 			inode->i_mapping->a_ops = &ext2_aops;
+			inode->i_fop = &ext2_file_operations;
+		}
 		mark_inode_dirty(inode);
 		err = ext2_add_nondir(dentry, inode);
 	}
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 661c3d9..876e391 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -31,6 +31,7 @@
 #include "ext2.h"
 #include "xattr.h"
 #include "acl.h"
+#include "xip.h"
 
 static void ext2_sync_super(struct super_block *sb,
 			    struct ext2_super_block *es);
@@ -257,7 +258,7 @@ enum {
 	Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid,
 	Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
 	Opt_nouid32, Opt_check, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov, Opt_nobh,
-	Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
+	Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl, Opt_xip,
 	Opt_ignore, Opt_err,
 };
 
@@ -286,6 +287,7 @@ static match_table_t tokens = {
 	{Opt_nouser_xattr, "nouser_xattr"},
 	{Opt_acl, "acl"},
 	{Opt_noacl, "noacl"},
+	{Opt_xip, "xip"},
 	{Opt_ignore, "grpquota"},
 	{Opt_ignore, "noquota"},
 	{Opt_ignore, "quota"},
@@ -397,6 +399,13 @@ static int parse_options (char * options,
 			printk("EXT2 (no)acl options not supported\n");
 			break;
 #endif
+		case Opt_xip:
+#ifdef CONFIG_EXT2_FS_XIP
+			set_opt (sbi->s_mount_opt, XIP);
+#else
+			printk("EXT2 xip option not supported\n");
+#endif
+			break;
 		case Opt_ignore:
 			break;
 		default:
@@ -640,6 +649,9 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 		((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
 		 MS_POSIXACL : 0);
 
+	ext2_xip_verify_sb(sb); /* see if bdev supports xip, unset
+				    EXT2_MOUNT_XIP if not */
+
 	if (le32_to_cpu(es->s_rev_level) == EXT2_GOOD_OLD_REV &&
 	    (EXT2_HAS_COMPAT_FEATURE(sb, ~0U) ||
 	     EXT2_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
@@ -668,6 +680,13 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 
 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
 
+	if ((ext2_use_xip(sb)) && ((blocksize != PAGE_SIZE) ||
+				  (sb->s_blocksize != blocksize))) {
+		if (!silent)
+			printk("XIP: Unsupported blocksize\n");
+		goto failed_mount;
+	}
+
 	/* If the blocksize doesn't match, re-read the thing.. */
 	if (sb->s_blocksize != blocksize) {
 		brelse(bh);
@@ -916,6 +935,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 {
 	struct ext2_sb_info * sbi = EXT2_SB(sb);
 	struct ext2_super_block * es;
+	unsigned long old_mount_opt = sbi->s_mount_opt;
 
 	/*
 	 * Allow the "check" option to be passed as a remount option.
@@ -927,6 +947,11 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 
 	es = sbi->s_es;
+	if (((sbi->s_mount_opt & EXT2_MOUNT_XIP) !=
+	    (old_mount_opt & EXT2_MOUNT_XIP)) &&
+	    invalidate_inodes(sb))
+		ext2_warning(sb, __FUNCTION__, "busy inodes while remounting "\
+			     "xip remain in cache (no functional problem)");
 	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
 		return 0;
 	if (*flags & MS_RDONLY) {
diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c
new file mode 100644
index 0000000..d44431d
--- /dev/null
+++ b/fs/ext2/xip.c
@@ -0,0 +1,80 @@
+/*
+ *  linux/fs/ext2/xip.c
+ *
+ * Copyright (C) 2005 IBM Corporation
+ * Author: Carsten Otte (cotte@de.ibm.com)
+ */
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/genhd.h>
+#include <linux/buffer_head.h>
+#include <linux/ext2_fs_sb.h>
+#include <linux/ext2_fs.h>
+#include "ext2.h"
+#include "xip.h"
+
+static inline int
+__inode_direct_access(struct inode *inode, sector_t sector, unsigned long *data) {
+	BUG_ON(!inode->i_sb->s_bdev->bd_disk->fops->direct_access);
+	return inode->i_sb->s_bdev->bd_disk->fops
+		->direct_access(inode->i_sb->s_bdev,sector,data);
+}
+
+int
+ext2_clear_xip_target(struct inode *inode, int block) {
+	sector_t sector = block*(PAGE_SIZE/512);
+	unsigned long data;
+	int rc;
+
+	rc = __inode_direct_access(inode, sector, &data);
+	if (rc)
+		return rc;
+	clear_page((void*)data);
+	return 0;
+}
+
+void ext2_xip_verify_sb(struct super_block *sb)
+{
+	struct ext2_sb_info *sbi = EXT2_SB(sb);
+
+	if ((sbi->s_mount_opt & EXT2_MOUNT_XIP)) {
+		if ((sb->s_bdev == NULL) ||
+			sb->s_bdev->bd_disk == NULL ||
+			sb->s_bdev->bd_disk->fops == NULL ||
+			sb->s_bdev->bd_disk->fops->direct_access == NULL) {
+			sbi->s_mount_opt &= (~EXT2_MOUNT_XIP);
+			ext2_warning(sb, __FUNCTION__,
+				"ignoring xip option - not supported by bdev");
+		}
+	}
+}
+
+struct page*
+ext2_get_xip_page(struct address_space *mapping, sector_t blockno,
+		   int create)
+{
+	int rc;
+	unsigned long data;
+	struct buffer_head tmp;
+
+	tmp.b_state = 0;
+	tmp.b_blocknr = 0;
+	rc = ext2_get_block(mapping->host, blockno/(PAGE_SIZE/512) , &tmp,
+				create);
+	if (rc)
+		return ERR_PTR(rc);
+	if (tmp.b_blocknr == 0) {
+		/* SPARSE block */
+		BUG_ON(create);
+		return ERR_PTR(-ENODATA);
+	}
+
+	rc = __inode_direct_access
+		(mapping->host,tmp.b_blocknr*(PAGE_SIZE/512) ,&data);
+	if (rc)
+		return ERR_PTR(rc);
+
+	SetPageUptodate(virt_to_page(data));
+	return virt_to_page(data);
+}
diff --git a/fs/ext2/xip.h b/fs/ext2/xip.h
new file mode 100644
index 0000000..aa85331
--- /dev/null
+++ b/fs/ext2/xip.h
@@ -0,0 +1,25 @@
+/*
+ *  linux/fs/ext2/xip.h
+ *
+ * Copyright (C) 2005 IBM Corporation
+ * Author: Carsten Otte (cotte@de.ibm.com)
+ */
+
+#ifdef CONFIG_EXT2_FS_XIP
+extern void ext2_xip_verify_sb (struct super_block *);
+extern int ext2_clear_xip_target (struct inode *, int);
+
+static inline int ext2_use_xip (struct super_block *sb)
+{
+	struct ext2_sb_info *sbi = EXT2_SB(sb);
+	return (sbi->s_mount_opt & EXT2_MOUNT_XIP);
+}
+struct page* ext2_get_xip_page (struct address_space *, sector_t, int);
+#define mapping_is_xip(map) unlikely(map->a_ops->get_xip_page)
+#else
+#define mapping_is_xip(map)			0
+#define ext2_xip_verify_sb(sb)			do { } while (0)
+#define ext2_use_xip(sb)			0
+#define ext2_clear_xip_target(inode, chain)	0
+#define ext2_get_xip_page			NULL
+#endif
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 638c13a..3ac3826 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -393,7 +393,8 @@ ext3_acl_chmod(struct inode *inode)
 		int retries = 0;
 
 	retry:
-		handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS);
+		handle = ext3_journal_start(inode,
+				EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
 		if (IS_ERR(handle)) {
 			error = PTR_ERR(handle);
 			ext3_std_error(inode->i_sb, error);
@@ -417,12 +418,12 @@ static size_t
 ext3_xattr_list_acl_access(struct inode *inode, char *list, size_t list_len,
 			   const char *name, size_t name_len)
 {
-	const size_t size = sizeof(XATTR_NAME_ACL_ACCESS);
+	const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
 
 	if (!test_opt(inode->i_sb, POSIX_ACL))
 		return 0;
 	if (list && size <= list_len)
-		memcpy(list, XATTR_NAME_ACL_ACCESS, size);
+		memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
 	return size;
 }
 
@@ -430,12 +431,12 @@ static size_t
 ext3_xattr_list_acl_default(struct inode *inode, char *list, size_t list_len,
 			    const char *name, size_t name_len)
 {
-	const size_t size = sizeof(XATTR_NAME_ACL_DEFAULT);
+	const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
 
 	if (!test_opt(inode->i_sb, POSIX_ACL))
 		return 0;
 	if (list && size <= list_len)
-		memcpy(list, XATTR_NAME_ACL_DEFAULT, size);
+		memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
 	return size;
 }
 
@@ -503,7 +504,7 @@ ext3_xattr_set_acl(struct inode *inode, int type, const void *value,
 		acl = NULL;
 
 retry:
-	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS);
+	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	error = ext3_set_acl(handle, inode, type, acl);
@@ -535,14 +536,14 @@ ext3_xattr_set_acl_default(struct inode *inode, const char *name,
 }
 
 struct xattr_handler ext3_xattr_acl_access_handler = {
-	.prefix	= XATTR_NAME_ACL_ACCESS,
+	.prefix	= POSIX_ACL_XATTR_ACCESS,
 	.list	= ext3_xattr_list_acl_access,
 	.get	= ext3_xattr_get_acl_access,
 	.set	= ext3_xattr_set_acl_access,
 };
 
 struct xattr_handler ext3_xattr_acl_default_handler = {
-	.prefix	= XATTR_NAME_ACL_DEFAULT,
+	.prefix	= POSIX_ACL_XATTR_DEFAULT,
 	.list	= ext3_xattr_list_acl_default,
 	.get	= ext3_xattr_get_acl_default,
 	.set	= ext3_xattr_set_acl_default,
diff --git a/fs/ext3/acl.h b/fs/ext3/acl.h
index 98af0c0..92d50b5 100644
--- a/fs/ext3/acl.h
+++ b/fs/ext3/acl.h
@@ -4,7 +4,7 @@
   (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
 */
 
-#include <linux/xattr_acl.h>
+#include <linux/posix_acl_xattr.h>
 
 #define EXT3_ACL_VERSION	0x0001
 
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 0d5fa73..0b2db4f 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -128,7 +128,7 @@ static unsigned long blocks_for_truncate(struct inode *inode)
 	if (needed > EXT3_MAX_TRANS_DATA) 
 		needed = EXT3_MAX_TRANS_DATA;
 
-	return EXT3_DATA_TRANS_BLOCKS + needed;
+	return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
 }
 
 /* 
@@ -2763,7 +2763,8 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
 
 		/* (user+group)*(old+new) structure, inode write (sb,
 		 * inode block, ? - but truncate inode update has it) */
-		handle = ext3_journal_start(inode, 4*EXT3_QUOTA_INIT_BLOCKS+3);
+		handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+
+					EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
 		if (IS_ERR(handle)) {
 			error = PTR_ERR(handle);
 			goto err_out;
@@ -2861,7 +2862,7 @@ static int ext3_writepage_trans_blocks(struct inode *inode)
 #ifdef CONFIG_QUOTA
 	/* We know that structure was already allocated during DQUOT_INIT so
 	 * we will be updating only the data blocks + inodes */
-	ret += 2*EXT3_QUOTA_TRANS_BLOCKS;
+	ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb);
 #endif
 
 	return ret;
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 79742d8..50378d8 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -932,8 +932,16 @@ static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry,
 	struct inode *dir = dentry->d_parent->d_inode;
 
 	sb = dir->i_sb;
-	if (!(frame = dx_probe(dentry, NULL, &hinfo, frames, err)))
-		return NULL;
+	/* NFS may look up ".." - look at dx_root directory block */
+	if (namelen > 2 || name[0] != '.'||(name[1] != '.' && name[1] != '\0')){
+		if (!(frame = dx_probe(dentry, NULL, &hinfo, frames, err)))
+			return NULL;
+	} else {
+		frame = frames;
+		frame->bh = NULL;			/* for dx_release() */
+		frame->at = (struct dx_entry *)frames;	/* hack for zero entry*/
+		dx_set_block(frame->at, 0);		/* dx_root block is 0 */
+	}
 	hash = hinfo.hash;
 	do {
 		block = dx_get_block(frame->at);
@@ -1637,9 +1645,9 @@ static int ext3_create (struct inode * dir, struct dentry * dentry, int mode,
 	int err, retries = 0;
 
 retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
 					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					2*EXT3_QUOTA_INIT_BLOCKS);
+					2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -1671,9 +1679,9 @@ static int ext3_mknod (struct inode * dir, struct dentry *dentry,
 		return -EINVAL;
 
 retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
 			 		EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					2*EXT3_QUOTA_INIT_BLOCKS);
+					2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -1707,9 +1715,9 @@ static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
 		return -EMLINK;
 
 retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
 					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					2*EXT3_QUOTA_INIT_BLOCKS);
+					2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -1998,7 +2006,7 @@ static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
 	/* Initialize quotas before so that eventual writes go in
 	 * separate transaction */
 	DQUOT_INIT(dentry->d_inode);
-	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -2057,7 +2065,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
 	/* Initialize quotas before so that eventual writes go
 	 * in separate transaction */
 	DQUOT_INIT(dentry->d_inode);
-	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS);
+	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -2112,9 +2120,9 @@ static int ext3_symlink (struct inode * dir,
 		return -ENAMETOOLONG;
 
 retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
 			 		EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 +
-					2*EXT3_QUOTA_INIT_BLOCKS);
+					2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
@@ -2166,7 +2174,7 @@ static int ext3_link (struct dentry * old_dentry,
 		return -EMLINK;
 
 retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
 					EXT3_INDEX_EXTRA_TRANS_BLOCKS);
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
@@ -2208,7 +2216,8 @@ static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
 	 * in separate transaction */
 	if (new_dentry->d_inode)
 		DQUOT_INIT(new_dentry->d_inode);
-	handle = ext3_journal_start(old_dir, 2 * EXT3_DATA_TRANS_BLOCKS +
+	handle = ext3_journal_start(old_dir, 2 *
+					EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
 			 		EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 981ccb2..b4b3e8a 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -589,7 +589,7 @@ enum {
 	Opt_commit, Opt_journal_update, Opt_journal_inum,
 	Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
 	Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
-	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0,
+	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
 	Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
 };
 
@@ -634,10 +634,10 @@ static match_table_t tokens = {
 	{Opt_grpjquota, "grpjquota=%s"},
 	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
 	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
-	{Opt_ignore, "grpquota"},
-	{Opt_ignore, "noquota"},
-	{Opt_ignore, "quota"},
-	{Opt_ignore, "usrquota"},
+	{Opt_quota, "grpquota"},
+	{Opt_noquota, "noquota"},
+	{Opt_quota, "quota"},
+	{Opt_quota, "usrquota"},
 	{Opt_barrier, "barrier=%u"},
 	{Opt_err, NULL},
 	{Opt_resize, "resize"},
@@ -876,6 +876,7 @@ set_qf_name:
 				sbi->s_qf_names[qtype] = NULL;
 				return 0;
 			}
+			set_opt(sbi->s_mount_opt, QUOTA);
 			break;
 		case Opt_offusrjquota:
 			qtype = USRQUOTA;
@@ -898,6 +899,17 @@ clear_qf_name:
 		case Opt_jqfmt_vfsv0:
 			sbi->s_jquota_fmt = QFMT_VFS_V0;
 			break;
+		case Opt_quota:
+			set_opt(sbi->s_mount_opt, QUOTA);
+			break;
+		case Opt_noquota:
+			if (sb_any_quota_enabled(sb)) {
+				printk(KERN_ERR "EXT3-fs: Cannot change quota "
+					"options when quota turned on.\n");
+				return 0;
+			}
+			clear_opt(sbi->s_mount_opt, QUOTA);
+			break;
 #else
 		case Opt_usrjquota:
 		case Opt_grpjquota:
@@ -909,6 +921,9 @@ clear_qf_name:
 				"EXT3-fs: journalled quota options not "
 				"supported.\n");
 			break;
+		case Opt_quota:
+		case Opt_noquota:
+			break;
 #endif
 		case Opt_abort:
 			set_opt(sbi->s_mount_opt, ABORT);
@@ -2238,7 +2253,7 @@ static int ext3_dquot_initialize(struct inode *inode, int type)
 	int ret, err;
 
 	/* We may create quota structure so we need to reserve enough blocks */
-	handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
+	handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ret = dquot_initialize(inode, type);
@@ -2254,7 +2269,7 @@ static int ext3_dquot_drop(struct inode *inode)
 	int ret, err;
 
 	/* We may delete quota structure so we need to reserve enough blocks */
-	handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
+	handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ret = dquot_drop(inode);
@@ -2272,7 +2287,7 @@ static int ext3_write_dquot(struct dquot *dquot)
 
 	inode = dquot_to_inode(dquot);
 	handle = ext3_journal_start(inode,
-					EXT3_QUOTA_TRANS_BLOCKS);
+					EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ret = dquot_commit(dquot);
@@ -2288,7 +2303,7 @@ static int ext3_acquire_dquot(struct dquot *dquot)
 	handle_t *handle;
 
 	handle = ext3_journal_start(dquot_to_inode(dquot),
-					EXT3_QUOTA_INIT_BLOCKS);
+					EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ret = dquot_acquire(dquot);
@@ -2304,7 +2319,7 @@ static int ext3_release_dquot(struct dquot *dquot)
 	handle_t *handle;
 
 	handle = ext3_journal_start(dquot_to_inode(dquot),
-					EXT3_QUOTA_INIT_BLOCKS);
+					EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 	ret = dquot_release(dquot);
@@ -2348,22 +2363,8 @@ static int ext3_write_info(struct super_block *sb, int type)
  */
 static int ext3_quota_on_mount(struct super_block *sb, int type)
 {
-	int err;
-	struct dentry *dentry;
-	struct qstr name = { .name = EXT3_SB(sb)->s_qf_names[type],
-			     .hash = 0,
-			     .len = strlen(EXT3_SB(sb)->s_qf_names[type])};
-
-	dentry = lookup_hash(&name, sb->s_root);
-	if (IS_ERR(dentry))
-		return PTR_ERR(dentry);
-	err = vfs_quota_on_mount(type, EXT3_SB(sb)->s_jquota_fmt, dentry);
-	/* Now invalidate and put the dentry - quota got its own reference
-	 * to inode and dentry has at least wrong hash so we had better
-	 * throw it away */
-	d_invalidate(dentry);
-	dput(dentry);
-	return err;
+	return vfs_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type],
+			EXT3_SB(sb)->s_jquota_fmt, type);
 }
 
 /*
@@ -2375,6 +2376,8 @@ static int ext3_quota_on(struct super_block *sb, int type, int format_id,
 	int err;
 	struct nameidata nd;
 
+	if (!test_opt(sb, QUOTA))
+		return -EINVAL;
 	/* Not journalling quota? */
 	if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] &&
 	    !EXT3_SB(sb)->s_qf_names[GRPQUOTA])
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 4cbc6d0..3f9dfa6 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -1044,7 +1044,7 @@ ext3_xattr_set(struct inode *inode, int name_index, const char *name,
 	int error, retries = 0;
 
 retry:
-	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS);
+	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
 	if (IS_ERR(handle)) {
 		error = PTR_ERR(handle);
 	} else {
diff --git a/fs/file_table.c b/fs/file_table.c
index 03d83cb..fa7849f 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -63,42 +63,45 @@ static inline void file_free(struct file *f)
  */
 struct file *get_empty_filp(void)
 {
-static int old_max;
+	static int old_max;
 	struct file * f;
 
 	/*
 	 * Privileged users can go above max_files
 	 */
-	if (files_stat.nr_files < files_stat.max_files ||
-				capable(CAP_SYS_ADMIN)) {
-		f = kmem_cache_alloc(filp_cachep, GFP_KERNEL);
-		if (f) {
-			memset(f, 0, sizeof(*f));
-			if (security_file_alloc(f)) {
-				file_free(f);
-				goto fail;
-			}
-			eventpoll_init_file(f);
-			atomic_set(&f->f_count, 1);
-			f->f_uid = current->fsuid;
-			f->f_gid = current->fsgid;
-			rwlock_init(&f->f_owner.lock);
-			/* f->f_version: 0 */
-			INIT_LIST_HEAD(&f->f_list);
-			f->f_maxcount = INT_MAX;
-			return f;
-		}
-	}
-
+	if (files_stat.nr_files >= files_stat.max_files &&
+				!capable(CAP_SYS_ADMIN))
+		goto over;
+
+	f = kmem_cache_alloc(filp_cachep, GFP_KERNEL);
+	if (f == NULL)
+		goto fail;
+
+	memset(f, 0, sizeof(*f));
+	if (security_file_alloc(f))
+		goto fail_sec;
+
+	eventpoll_init_file(f);
+	atomic_set(&f->f_count, 1);
+	f->f_uid = current->fsuid;
+	f->f_gid = current->fsgid;
+	rwlock_init(&f->f_owner.lock);
+	/* f->f_version: 0 */
+	INIT_LIST_HEAD(&f->f_list);
+	f->f_maxcount = INT_MAX;
+	return f;
+
+over:
 	/* Ran out of filps - report that */
-	if (files_stat.max_files >= old_max) {
+	if (files_stat.nr_files > old_max) {
 		printk(KERN_INFO "VFS: file-max limit %d reached\n",
 					files_stat.max_files);
-		old_max = files_stat.max_files;
-	} else {
-		/* Big problems... */
-		printk(KERN_WARNING "VFS: filp allocation failed\n");
+		old_max = files_stat.nr_files;
 	}
+	goto fail;
+
+fail_sec:
+	file_free(f);
 fail:
 	return NULL;
 }
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 8e050fa..e94ab39 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -485,32 +485,6 @@ static void set_sb_syncing(int val)
 	spin_unlock(&sb_lock);
 }
 
-/*
- * Find a superblock with inodes that need to be synced
- */
-static struct super_block *get_super_to_sync(void)
-{
-	struct super_block *sb;
-restart:
-	spin_lock(&sb_lock);
-	sb = sb_entry(super_blocks.prev);
-	for (; sb != sb_entry(&super_blocks); sb = sb_entry(sb->s_list.prev)) {
-		if (sb->s_syncing)
-			continue;
-		sb->s_syncing = 1;
-		sb->s_count++;
-		spin_unlock(&sb_lock);
-		down_read(&sb->s_umount);
-		if (!sb->s_root) {
-			drop_super(sb);
-			goto restart;
-		}
-		return sb;
-	}
-	spin_unlock(&sb_lock);
-	return NULL;
-}
-
 /**
  * sync_inodes - writes all inodes to disk
  * @wait: wait for completion
@@ -530,23 +504,39 @@ restart:
  * outstanding dirty inodes, the writeback goes block-at-a-time within the
  * filesystem's write_inode().  This is extremely slow.
  */
-void sync_inodes(int wait)
+static void __sync_inodes(int wait)
 {
 	struct super_block *sb;
 
-	set_sb_syncing(0);
-	while ((sb = get_super_to_sync()) != NULL) {
-		sync_inodes_sb(sb, 0);
-		sync_blockdev(sb->s_bdev);
-		drop_super(sb);
+	spin_lock(&sb_lock);
+restart:
+	list_for_each_entry(sb, &super_blocks, s_list) {
+		if (sb->s_syncing)
+			continue;
+		sb->s_syncing = 1;
+		sb->s_count++;
+		spin_unlock(&sb_lock);
+		down_read(&sb->s_umount);
+		if (sb->s_root) {
+			sync_inodes_sb(sb, wait);
+			sync_blockdev(sb->s_bdev);
+		}
+		up_read(&sb->s_umount);
+		spin_lock(&sb_lock);
+		if (__put_super_and_need_restart(sb))
+			goto restart;
 	}
+	spin_unlock(&sb_lock);
+}
+
+void sync_inodes(int wait)
+{
+	set_sb_syncing(0);
+	__sync_inodes(0);
+
 	if (wait) {
 		set_sb_syncing(0);
-		while ((sb = get_super_to_sync()) != NULL) {
-			sync_inodes_sb(sb, 1);
-			sync_blockdev(sb->s_bdev);
-			drop_super(sb);
-		}
+		__sync_inodes(1);
 	}
 }
 
diff --git a/fs/inode.c b/fs/inode.c
index 801fe7f..1f9a3a2 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -500,7 +500,7 @@ repeat:
 			continue;
 		if (!test(inode, data))
 			continue;
-		if (inode->i_state & (I_FREEING|I_CLEAR)) {
+		if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
 		}
@@ -525,7 +525,7 @@ repeat:
 			continue;
 		if (inode->i_sb != sb)
 			continue;
-		if (inode->i_state & (I_FREEING|I_CLEAR)) {
+		if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
 		}
@@ -727,7 +727,7 @@ EXPORT_SYMBOL(iunique);
 struct inode *igrab(struct inode *inode)
 {
 	spin_lock(&inode_lock);
-	if (!(inode->i_state & I_FREEING))
+	if (!(inode->i_state & (I_FREEING|I_WILL_FREE)))
 		__iget(inode);
 	else
 		/*
@@ -1024,17 +1024,21 @@ static void generic_forget_inode(struct inode *inode)
 		if (!(inode->i_state & (I_DIRTY|I_LOCK)))
 			list_move(&inode->i_list, &inode_unused);
 		inodes_stat.nr_unused++;
-		spin_unlock(&inode_lock);
-		if (!sb || (sb->s_flags & MS_ACTIVE))
+		if (!sb || (sb->s_flags & MS_ACTIVE)) {
+			spin_unlock(&inode_lock);
 			return;
+		}
+		inode->i_state |= I_WILL_FREE;
+		spin_unlock(&inode_lock);
 		write_inode_now(inode, 1);
 		spin_lock(&inode_lock);
+		inode->i_state &= ~I_WILL_FREE;
 		inodes_stat.nr_unused--;
 		hlist_del_init(&inode->i_hash);
 	}
 	list_del_init(&inode->i_list);
 	list_del_init(&inode->i_sb_list);
-	inode->i_state|=I_FREEING;
+	inode->i_state |= I_FREEING;
 	inodes_stat.nr_inodes--;
 	spin_unlock(&inode_lock);
 	if (inode->i_data.nrpages)
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 30a2bf9..e892dab 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -21,6 +21,7 @@
 #include <linux/sched.h>
 #include <linux/fs.h>
 #include <linux/quotaops.h>
+#include <linux/posix_acl_xattr.h>
 #include "jfs_incore.h"
 #include "jfs_xattr.h"
 #include "jfs_acl.h"
@@ -36,11 +37,11 @@ static struct posix_acl *jfs_get_acl(struct inode *inode, int type)
 
 	switch(type) {
 		case ACL_TYPE_ACCESS:
-			ea_name = XATTR_NAME_ACL_ACCESS;
+			ea_name = POSIX_ACL_XATTR_ACCESS;
 			p_acl = &ji->i_acl;
 			break;
 		case ACL_TYPE_DEFAULT:
-			ea_name = XATTR_NAME_ACL_DEFAULT;
+			ea_name = POSIX_ACL_XATTR_DEFAULT;
 			p_acl = &ji->i_default_acl;
 			break;
 		default:
@@ -88,11 +89,11 @@ static int jfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 
 	switch(type) {
 		case ACL_TYPE_ACCESS:
-			ea_name = XATTR_NAME_ACL_ACCESS;
+			ea_name = POSIX_ACL_XATTR_ACCESS;
 			p_acl = &ji->i_acl;
 			break;
 		case ACL_TYPE_DEFAULT:
-			ea_name = XATTR_NAME_ACL_DEFAULT;
+			ea_name = POSIX_ACL_XATTR_DEFAULT;
 			p_acl = &ji->i_default_acl;
 			if (!S_ISDIR(inode->i_mode))
 				return acl ? -EACCES : 0;
@@ -101,7 +102,7 @@ static int jfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 			return -EINVAL;
 	}
 	if (acl) {
-		size = xattr_acl_size(acl->a_count);
+		size = posix_acl_xattr_size(acl->a_count);
 		value = kmalloc(size, GFP_KERNEL);
 		if (!value)
 			return -ENOMEM;
diff --git a/fs/jfs/jfs_acl.h b/fs/jfs/jfs_acl.h
index d2ae430..a3acd3e 100644
--- a/fs/jfs/jfs_acl.h
+++ b/fs/jfs/jfs_acl.h
@@ -20,8 +20,6 @@
 
 #ifdef CONFIG_JFS_POSIX_ACL
 
-#include <linux/xattr_acl.h>
-
 int jfs_permission(struct inode *, int, struct nameidata *);
 int jfs_init_acl(struct inode *, struct inode *);
 int jfs_setattr(struct dentry *, struct iattr *);
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 810a365..ee32211 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -24,6 +24,7 @@
 #include <linux/completion.h>
 #include <linux/vfs.h>
 #include <linux/moduleparam.h>
+#include <linux/posix_acl.h>
 #include <asm/uaccess.h>
 
 #include "jfs_incore.h"
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 6016373..ee438d4 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -19,6 +19,7 @@
 
 #include <linux/fs.h>
 #include <linux/xattr.h>
+#include <linux/posix_acl_xattr.h>
 #include <linux/quotaops.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
@@ -718,9 +719,9 @@ static int can_set_system_xattr(struct inode *inode, const char *name,
 		return -EPERM;
 
 	/*
-	 * XATTR_NAME_ACL_ACCESS is tied to i_mode
+	 * POSIX_ACL_XATTR_ACCESS is tied to i_mode
 	 */
-	if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0) {
+	if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0) {
 		acl = posix_acl_from_xattr(value, value_len);
 		if (IS_ERR(acl)) {
 			rc = PTR_ERR(acl);
@@ -750,7 +751,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name,
 		JFS_IP(inode)->i_acl = JFS_ACL_NOT_CACHED;
 
 		return 0;
-	} else if (strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0) {
+	} else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0) {
 		acl = posix_acl_from_xattr(value, value_len);
 		if (IS_ERR(acl)) {
 			rc = PTR_ERR(acl);
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index b82e470..6e24255 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -191,7 +191,9 @@ lockd(struct svc_rqst *rqstp)
 		printk(KERN_DEBUG
 			"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/namei.c b/fs/namei.c
index a7f7f44..fa8df81 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1577,19 +1577,35 @@ do_link:
  *
  * Simple function to lookup and return a dentry and create it
  * if it doesn't exist.  Is SMP-safe.
+ *
+ * Returns with nd->dentry->d_inode->i_sem locked.
  */
 struct dentry *lookup_create(struct nameidata *nd, int is_dir)
 {
-	struct dentry *dentry;
+	struct dentry *dentry = ERR_PTR(-EEXIST);
 
 	down(&nd->dentry->d_inode->i_sem);
-	dentry = ERR_PTR(-EEXIST);
+	/*
+	 * Yucky last component or no last component at all?
+	 * (foo/., foo/.., /////)
+	 */
 	if (nd->last_type != LAST_NORM)
 		goto fail;
 	nd->flags &= ~LOOKUP_PARENT;
+
+	/*
+	 * Do the final lookup.
+	 */
 	dentry = lookup_hash(&nd->last, nd->dentry);
 	if (IS_ERR(dentry))
 		goto fail;
+
+	/*
+	 * Special case - lookup gave negative, but... we had foo/bar/
+	 * From the vfs_mknod() POV we just have a negative dentry -
+	 * all is fine. Let's be bastards - you had / on the end, you've
+	 * been asking for (non-existent) directory. -ENOENT for you.
+	 */
 	if (!is_dir && nd->last.name[nd->last.len] && !dentry->d_inode)
 		goto enoent;
 	return dentry;
diff --git a/fs/namespace.c b/fs/namespace.c
index 3b93e5d..208c079 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -337,7 +337,7 @@ int may_umount(struct vfsmount *mnt)
 
 EXPORT_SYMBOL(may_umount);
 
-void umount_tree(struct vfsmount *mnt)
+static void umount_tree(struct vfsmount *mnt)
 {
 	struct vfsmount *p;
 	LIST_HEAD(kill);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index d6a30c8..6537f2c 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -751,11 +751,6 @@ nfs_file_direct_write(struct kiocb *iocb, const char __user *buf, size_t count,
 	retval = -EFAULT;
 	if (!access_ok(VERIFY_READ, iov.iov_base, iov.iov_len))
 		goto out;
-        if (file->f_error) {
-                retval = file->f_error;
-                file->f_error = 0;
-                goto out;
-        }
 	retval = -EFBIG;
 	if (limit != RLIM_INFINITY) {
 		if (pos >= limit) {
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index 9f043f4..ce341dc 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -10,5 +10,5 @@ nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o
 nfsd-$(CONFIG_NFSD_V3)	+= nfs3proc.o nfs3xdr.o
 nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o
 nfsd-$(CONFIG_NFSD_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4idmap.o \
-			   nfs4acl.o nfs4callback.o
+			   nfs4acl.o nfs4callback.o nfs4recover.o
 nfsd-objs		:= $(nfsd-y)
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 11ebf6c..4a21055 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -125,7 +125,7 @@ static short ace2type(struct nfs4_ace *);
 static int _posix_to_nfsv4_one(struct posix_acl *, struct nfs4_acl *, unsigned int);
 static struct posix_acl *_nfsv4_to_posix_one(struct nfs4_acl *, unsigned int);
 int nfs4_acl_add_ace(struct nfs4_acl *, u32, u32, u32, int, uid_t);
-int nfs4_acl_split(struct nfs4_acl *, struct nfs4_acl *);
+static int nfs4_acl_split(struct nfs4_acl *, struct nfs4_acl *);
 
 struct nfs4_acl *
 nfs4_acl_posix_to_nfsv4(struct posix_acl *pacl, struct posix_acl *dpacl,
@@ -775,7 +775,7 @@ out_err:
 	return pacl;
 }
 
-int
+static int
 nfs4_acl_split(struct nfs4_acl *acl, struct nfs4_acl *dacl)
 {
 	struct list_head *h, *n;
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 634465e..583c071 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -54,7 +54,6 @@
 
 /* declarations */
 static void nfs4_cb_null(struct rpc_task *task);
-extern spinlock_t recall_lock;
 
 /* Index of predefined Linux callback client operations */
 
@@ -329,12 +328,12 @@ out:
         .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2,  \
 }
 
-struct rpc_procinfo     nfs4_cb_procedures[] = {
+static struct rpc_procinfo     nfs4_cb_procedures[] = {
     PROC(CB_NULL,      NULL,     enc_cb_null,     dec_cb_null),
     PROC(CB_RECALL,    COMPOUND,   enc_cb_recall,      dec_cb_recall),
 };
 
-struct rpc_version              nfs_cb_version4 = {
+static struct rpc_version       nfs_cb_version4 = {
         .number                 = 1,
         .nrprocs                = sizeof(nfs4_cb_procedures)/sizeof(nfs4_cb_procedures[0]),
         .procs                  = nfs4_cb_procedures
@@ -348,7 +347,7 @@ static struct rpc_version *	nfs_cb_version[] = {
 /*
  * Use the SETCLIENTID credential
  */
-struct rpc_cred *
+static struct rpc_cred *
 nfsd4_lookupcred(struct nfs4_client *clp, int taskflags)
 {
         struct auth_cred acred;
@@ -387,9 +386,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	char                    hostname[32];
 	int status;
 
-	dprintk("NFSD: probe_callback. cb_parsed %d cb_set %d\n",
-			cb->cb_parsed, atomic_read(&cb->cb_set));
-	if (!cb->cb_parsed || atomic_read(&cb->cb_set))
+	if (atomic_read(&cb->cb_set))
 		return;
 
 	/* Initialize address */
@@ -427,7 +424,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	 * XXX AUTH_UNIX only - need AUTH_GSS....
 	 */
 	sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(addr.sin_addr.s_addr));
-	clnt = rpc_create_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
+	clnt = rpc_new_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
 	if (IS_ERR(clnt)) {
 		dprintk("NFSD: couldn't create callback client\n");
 		goto out_err;
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 4ba5408..5605a26 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -104,7 +104,7 @@ ent_update(struct ent *new, struct ent *itm)
 	ent_init(new, itm);
 }
 
-void
+static void
 ent_put(struct cache_head *ch, struct cache_detail *cd)
 {
 	if (cache_put(ch, cd)) {
@@ -186,7 +186,7 @@ warn_no_idmapd(struct cache_detail *detail)
 static int         idtoname_parse(struct cache_detail *, char *, int);
 static struct ent *idtoname_lookup(struct ent *, int);
 
-struct cache_detail idtoname_cache = {
+static struct cache_detail idtoname_cache = {
 	.hash_size	= ENT_HASHMAX,
 	.hash_table	= idtoname_table,
 	.name		= "nfs4.idtoname",
@@ -277,7 +277,7 @@ nametoid_hash(struct ent *ent)
 	return hash_str(ent->name, ENT_HASHBITS);
 }
 
-void
+static void
 nametoid_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
     int *blen)
 {
@@ -317,9 +317,9 @@ nametoid_show(struct seq_file *m, struct cache_detail *cd, struct cache_head *h)
 }
 
 static struct ent *nametoid_lookup(struct ent *, int);
-int                nametoid_parse(struct cache_detail *, char *, int);
+static int         nametoid_parse(struct cache_detail *, char *, int);
 
-struct cache_detail nametoid_cache = {
+static struct cache_detail nametoid_cache = {
 	.hash_size	= ENT_HASHMAX,
 	.hash_table	= nametoid_table,
 	.name		= "nfs4.nametoid",
@@ -330,7 +330,7 @@ struct cache_detail nametoid_cache = {
 	.warn_no_listener = warn_no_idmapd,
 };
 
-int
+static int
 nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
 {
 	struct ent ent, *res;
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e815874..d71f145 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -45,6 +45,7 @@
 #include <linux/param.h>
 #include <linux/major.h>
 #include <linux/slab.h>
+#include <linux/file.h>
 
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
@@ -198,6 +199,11 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 	if (status)
 		goto out;
 	switch (open->op_claim_type) {
+		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+			status = nfserr_inval;
+			if (open->op_create)
+				goto out;
+			/* fall through */
 		case NFS4_OPEN_CLAIM_NULL:
 			/*
 			 * (1) set CURRENT_FH to the file being opened,
@@ -220,7 +226,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 			if (status)
 				goto out;
 			break;
-		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
              	case NFS4_OPEN_CLAIM_DELEGATE_PREV:
 			printk("NFSD: unsupported OPEN claim type %d\n",
 				open->op_claim_type);
@@ -473,26 +478,27 @@ static inline int
 nfsd4_read(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_read *read)
 {
 	int status;
-	struct file *filp = NULL;
 
 	/* no need to check permission - this will be done in nfsd_read() */
 
+	read->rd_filp = NULL;
 	if (read->rd_offset >= OFFSET_MAX)
 		return nfserr_inval;
 
 	nfs4_lock_state();
 	/* check stateid */
 	if ((status = nfs4_preprocess_stateid_op(current_fh, &read->rd_stateid,
-					CHECK_FH | RD_STATE, &filp))) {
+				CHECK_FH | RD_STATE, &read->rd_filp))) {
 		dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
 		goto out;
 	}
+	if (read->rd_filp)
+		get_file(read->rd_filp);
 	status = nfs_ok;
 out:
 	nfs4_unlock_state();
 	read->rd_rqstp = rqstp;
 	read->rd_fhp = current_fh;
-	read->rd_filp = filp;
 	return status;
 }
 
@@ -532,6 +538,8 @@ nfsd4_remove(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_rem
 {
 	int status;
 
+	if (nfs4_in_grace())
+		return nfserr_grace;
 	status = nfsd_unlink(rqstp, current_fh, 0, remove->rm_name, remove->rm_namelen);
 	if (status == nfserr_symlink)
 		return nfserr_notdir;
@@ -550,6 +558,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct svc_fh *current_fh,
 
 	if (!save_fh->fh_dentry)
 		return status;
+	if (nfs4_in_grace() && !(save_fh->fh_export->ex_flags
+					& NFSEXP_NOSUBTREECHECK))
+		return nfserr_grace;
 	status = nfsd_rename(rqstp, save_fh, rename->rn_sname,
 			     rename->rn_snamelen, current_fh,
 			     rename->rn_tname, rename->rn_tnamelen);
@@ -624,6 +635,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
 		dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
 		goto out;
 	}
+	if (filp)
+		get_file(filp);
 	nfs4_unlock_state();
 
 	write->wr_bytes_written = write->wr_buflen;
@@ -635,6 +648,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
 	status =  nfsd_write(rqstp, current_fh, filp, write->wr_offset,
 			write->wr_vec, write->wr_vlen, write->wr_buflen,
 			&write->wr_how_written);
+	if (filp)
+		fput(filp);
 
 	if (status == nfserr_symlink)
 		status = nfserr_inval;
@@ -923,6 +938,9 @@ encode_op:
 			nfs4_put_stateowner(replay_owner);
 			replay_owner = NULL;
 		}
+		/* XXX Ugh, we need to get rid of this kind of special case: */
+		if (op->opnum == OP_READ && op->u.read.rd_filp)
+			fput(op->u.read.rd_filp);
 	}
 
 out:
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
new file mode 100644
index 0000000..095f174
--- /dev/null
+++ b/fs/nfsd/nfs4recover.c
@@ -0,0 +1,431 @@
+/*
+*  linux/fs/nfsd/nfs4recover.c
+*
+*  Copyright (c) 2004 The Regents of the University of Michigan.
+*  All rights reserved.
+*
+*  Andy Adamson <andros@citi.umich.edu>
+*
+*  Redistribution and use in source and binary forms, with or without
+*  modification, are permitted provided that the following conditions
+*  are met:
+*
+*  1. Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*  2. Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in the
+*     documentation and/or other materials provided with the distribution.
+*  3. Neither the name of the University nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+*  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+*  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+*  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+*  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+*  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+*  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+*  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+*  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfs4.h>
+#include <linux/nfsd/state.h>
+#include <linux/nfsd/xdr4.h>
+#include <linux/param.h>
+#include <linux/file.h>
+#include <linux/namei.h>
+#include <asm/uaccess.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+
+
+#define NFSDDBG_FACILITY                NFSDDBG_PROC
+
+/* Globals */
+static struct nameidata rec_dir;
+static int rec_dir_init = 0;
+
+static void
+nfs4_save_user(uid_t *saveuid, gid_t *savegid)
+{
+	*saveuid = current->fsuid;
+	*savegid = current->fsgid;
+	current->fsuid = 0;
+	current->fsgid = 0;
+}
+
+static void
+nfs4_reset_user(uid_t saveuid, gid_t savegid)
+{
+	current->fsuid = saveuid;
+	current->fsgid = savegid;
+}
+
+static void
+md5_to_hex(char *out, char *md5)
+{
+	int i;
+
+	for (i=0; i<16; i++) {
+		unsigned char c = md5[i];
+
+		*out++ = '0' + ((c&0xf0)>>4) + (c>=0xa0)*('a'-'9'-1);
+		*out++ = '0' + (c&0x0f) + ((c&0x0f)>=0x0a)*('a'-'9'-1);
+	}
+	*out = '\0';
+}
+
+int
+nfs4_make_rec_clidname(char *dname, struct xdr_netobj *clname)
+{
+	struct xdr_netobj cksum;
+	struct crypto_tfm *tfm;
+	struct scatterlist sg[1];
+	int status = nfserr_resource;
+
+	dprintk("NFSD: nfs4_make_rec_clidname for %.*s\n",
+			clname->len, clname->data);
+	tfm = crypto_alloc_tfm("md5", 0);
+	if (tfm == NULL)
+		goto out;
+	cksum.len = crypto_tfm_alg_digestsize(tfm);
+	cksum.data = kmalloc(cksum.len, GFP_KERNEL);
+	if (cksum.data == NULL)
+ 		goto out;
+	crypto_digest_init(tfm);
+
+	sg[0].page = virt_to_page(clname->data);
+	sg[0].offset = offset_in_page(clname->data);
+	sg[0].length = clname->len;
+
+	crypto_digest_update(tfm, sg, 1);
+	crypto_digest_final(tfm, cksum.data);
+
+	md5_to_hex(dname, cksum.data);
+
+	kfree(cksum.data);
+	status = nfs_ok;
+out:
+	if (tfm)
+		crypto_free_tfm(tfm);
+	return status;
+}
+
+static int
+nfsd4_rec_fsync(struct dentry *dentry)
+{
+	struct file *filp;
+	int status = nfs_ok;
+
+	dprintk("NFSD: nfs4_fsync_rec_dir\n");
+	filp = dentry_open(dget(dentry), mntget(rec_dir.mnt), O_RDWR);
+	if (IS_ERR(filp)) {
+		status = PTR_ERR(filp);
+		goto out;
+	}
+	if (filp->f_op && filp->f_op->fsync)
+		status = filp->f_op->fsync(filp, filp->f_dentry, 0);
+	fput(filp);
+out:
+	if (status)
+		printk("nfsd4: unable to sync recovery directory\n");
+	return status;
+}
+
+int
+nfsd4_create_clid_dir(struct nfs4_client *clp)
+{
+	char *dname = clp->cl_recdir;
+	struct dentry *dentry;
+	uid_t uid;
+	gid_t gid;
+	int status;
+
+	dprintk("NFSD: nfsd4_create_clid_dir for \"%s\"\n", dname);
+
+	if (!rec_dir_init || clp->cl_firststate)
+		return 0;
+
+	nfs4_save_user(&uid, &gid);
+
+	/* lock the parent */
+	down(&rec_dir.dentry->d_inode->i_sem);
+
+	dentry = lookup_one_len(dname, rec_dir.dentry, HEXDIR_LEN-1);
+	if (IS_ERR(dentry)) {
+		status = PTR_ERR(dentry);
+		goto out_unlock;
+	}
+	status = -EEXIST;
+	if (dentry->d_inode) {
+		dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
+		goto out_put;
+	}
+	status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
+out_put:
+	dput(dentry);
+out_unlock:
+	up(&rec_dir.dentry->d_inode->i_sem);
+	if (status == 0) {
+		clp->cl_firststate = 1;
+		status = nfsd4_rec_fsync(rec_dir.dentry);
+	}
+	nfs4_reset_user(uid, gid);
+	dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
+	return status;
+}
+
+typedef int (recdir_func)(struct dentry *, struct dentry *);
+
+struct dentry_list {
+	struct dentry *dentry;
+	struct list_head list;
+};
+
+struct dentry_list_arg {
+	struct list_head dentries;
+	struct dentry *parent;
+};
+
+static int
+nfsd4_build_dentrylist(void *arg, const char *name, int namlen,
+		loff_t offset, ino_t ino, unsigned int d_type)
+{
+	struct dentry_list_arg *dla = arg;
+	struct list_head *dentries = &dla->dentries;
+	struct dentry *parent = dla->parent;
+	struct dentry *dentry;
+	struct dentry_list *child;
+
+	if (name && isdotent(name, namlen))
+		return nfs_ok;
+	dentry = lookup_one_len(name, parent, namlen);
+	if (IS_ERR(dentry))
+		return PTR_ERR(dentry);
+	child = kmalloc(sizeof(*child), GFP_KERNEL);
+	if (child == NULL)
+		return -ENOMEM;
+	child->dentry = dentry;
+	list_add(&child->list, dentries);
+	return 0;
+}
+
+static int
+nfsd4_list_rec_dir(struct dentry *dir, recdir_func *f)
+{
+	struct file *filp;
+	struct dentry_list_arg dla = {
+		.parent = dir,
+	};
+	struct list_head *dentries = &dla.dentries;
+	struct dentry_list *child;
+	uid_t uid;
+	gid_t gid;
+	int status;
+
+	if (!rec_dir_init)
+		return 0;
+
+	nfs4_save_user(&uid, &gid);
+
+	filp = dentry_open(dget(dir), mntget(rec_dir.mnt),
+			O_RDWR);
+	status = PTR_ERR(filp);
+	if (IS_ERR(filp))
+		goto out;
+	INIT_LIST_HEAD(dentries);
+	status = vfs_readdir(filp, nfsd4_build_dentrylist, &dla);
+	fput(filp);
+	while (!list_empty(dentries)) {
+		child = list_entry(dentries->next, struct dentry_list, list);
+		status = f(dir, child->dentry);
+		if (status)
+			goto out;
+		list_del(&child->list);
+		dput(child->dentry);
+		kfree(child);
+	}
+out:
+	while (!list_empty(dentries)) {
+		child = list_entry(dentries->next, struct dentry_list, list);
+		list_del(&child->list);
+		dput(child->dentry);
+		kfree(child);
+	}
+	nfs4_reset_user(uid, gid);
+	return status;
+}
+
+static int
+nfsd4_remove_clid_file(struct dentry *dir, struct dentry *dentry)
+{
+	int status;
+
+	if (!S_ISREG(dir->d_inode->i_mode)) {
+		printk("nfsd4: non-file found in client recovery directory\n");
+		return -EINVAL;
+	}
+	down(&dir->d_inode->i_sem);
+	status = vfs_unlink(dir->d_inode, dentry);
+	up(&dir->d_inode->i_sem);
+	return status;
+}
+
+static int
+nfsd4_clear_clid_dir(struct dentry *dir, struct dentry *dentry)
+{
+	int status;
+
+	/* For now this directory should already be empty, but we empty it of
+	 * any regular files anyway, just in case the directory was created by
+	 * a kernel from the future.... */
+	nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file);
+	down(&dir->d_inode->i_sem);
+	status = vfs_rmdir(dir->d_inode, dentry);
+	up(&dir->d_inode->i_sem);
+	return status;
+}
+
+static int
+nfsd4_unlink_clid_dir(char *name, int namlen)
+{
+	struct dentry *dentry;
+	int status;
+
+	dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
+
+	dentry = lookup_one_len(name, rec_dir.dentry, namlen);
+	if (IS_ERR(dentry)) {
+		status = PTR_ERR(dentry);
+		return status;
+	}
+	status = -ENOENT;
+	if (!dentry->d_inode)
+		goto out;
+
+	status = nfsd4_clear_clid_dir(rec_dir.dentry, dentry);
+out:
+	dput(dentry);
+	return status;
+}
+
+void
+nfsd4_remove_clid_dir(struct nfs4_client *clp)
+{
+	uid_t uid;
+	gid_t gid;
+	int status;
+
+	if (!rec_dir_init || !clp->cl_firststate)
+		return;
+
+	nfs4_save_user(&uid, &gid);
+	status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
+	nfs4_reset_user(uid, gid);
+	if (status == 0)
+		status = nfsd4_rec_fsync(rec_dir.dentry);
+	if (status)
+		printk("NFSD: Failed to remove expired client state directory"
+				" %.*s\n", HEXDIR_LEN, clp->cl_recdir);
+	return;
+}
+
+static int
+purge_old(struct dentry *parent, struct dentry *child)
+{
+	int status;
+
+	if (nfs4_has_reclaimed_state(child->d_name.name))
+		return nfs_ok;
+
+	status = nfsd4_clear_clid_dir(parent, child);
+	if (status)
+		printk("failed to remove client recovery directory %s\n",
+				child->d_name.name);
+	/* Keep trying, success or failure: */
+	return nfs_ok;
+}
+
+void
+nfsd4_recdir_purge_old(void) {
+	int status;
+
+	if (!rec_dir_init)
+		return;
+	status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
+	if (status == 0)
+		status = nfsd4_rec_fsync(rec_dir.dentry);
+	if (status)
+		printk("nfsd4: failed to purge old clients from recovery"
+			" directory %s\n", rec_dir.dentry->d_name.name);
+	return;
+}
+
+static int
+load_recdir(struct dentry *parent, struct dentry *child)
+{
+	if (child->d_name.len != HEXDIR_LEN - 1) {
+		printk("nfsd4: illegal name %s in recovery directory\n",
+				child->d_name.name);
+		/* Keep trying; maybe the others are OK: */
+		return nfs_ok;
+	}
+	nfs4_client_to_reclaim(child->d_name.name);
+	return nfs_ok;
+}
+
+int
+nfsd4_recdir_load(void) {
+	int status;
+
+	status = nfsd4_list_rec_dir(rec_dir.dentry, load_recdir);
+	if (status)
+		printk("nfsd4: failed loading clients from recovery"
+			" directory %s\n", rec_dir.dentry->d_name.name);
+	return status;
+}
+
+/*
+ * Hold reference to the recovery directory.
+ */
+
+void
+nfsd4_init_recdir(char *rec_dirname)
+{
+	uid_t			uid = 0;
+	gid_t			gid = 0;
+	int 			status;
+
+	printk("NFSD: Using %s as the NFSv4 state recovery directory\n",
+			rec_dirname);
+
+	BUG_ON(rec_dir_init);
+
+	nfs4_save_user(&uid, &gid);
+
+	status = path_lookup(rec_dirname, LOOKUP_FOLLOW, &rec_dir);
+	if (status == -ENOENT)
+		printk("NFSD: recovery directory %s doesn't exist\n",
+				rec_dirname);
+
+	if (!status)
+		rec_dir_init = 1;
+	nfs4_reset_user(uid, gid);
+}
+
+void
+nfsd4_shutdown_recdir(void)
+{
+	if (!rec_dir_init)
+		return;
+	rec_dir_init = 0;
+	path_release(&rec_dir);
+}
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 75e8b13..89e3652 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -48,39 +48,32 @@
 #include <linux/nfs4.h>
 #include <linux/nfsd/state.h>
 #include <linux/nfsd/xdr4.h>
+#include <linux/namei.h>
 
 #define NFSDDBG_FACILITY                NFSDDBG_PROC
 
 /* Globals */
 static time_t lease_time = 90;     /* default lease time */
-static time_t old_lease_time = 90; /* past incarnation lease time */
-static u32 nfs4_reclaim_init = 0;
-time_t boot_time;
-static time_t grace_end = 0;
+static time_t user_lease_time = 90;
+static time_t boot_time;
+static int in_grace = 1;
 static u32 current_clientid = 1;
 static u32 current_ownerid = 1;
 static u32 current_fileid = 1;
 static u32 current_delegid = 1;
 static u32 nfs4_init;
-stateid_t zerostateid;             /* bits all 0 */
-stateid_t onestateid;              /* bits all 1 */
-
-/* debug counters */
-u32 list_add_perfile = 0; 
-u32 list_del_perfile = 0;
-u32 add_perclient = 0;
-u32 del_perclient = 0;
-u32 alloc_file = 0;
-u32 free_file = 0;
-u32 vfsopen = 0;
-u32 vfsclose = 0;
-u32 alloc_delegation= 0;
-u32 free_delegation= 0;
+static stateid_t zerostateid;             /* bits all 0 */
+static stateid_t onestateid;              /* bits all 1 */
+
+#define ZERO_STATEID(stateid) (!memcmp((stateid), &zerostateid, sizeof(stateid_t)))
+#define ONE_STATEID(stateid)  (!memcmp((stateid), &onestateid, sizeof(stateid_t)))
 
 /* forward declarations */
-struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
+static struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
 static struct nfs4_delegation * find_delegation_stateid(struct inode *ino, stateid_t *stid);
 static void release_stateid_lockowners(struct nfs4_stateid *open_stp);
+static char user_recovery_dirname[PATH_MAX] = "/var/lib/nfs/v4recovery";
+static void nfs4_set_recdir(char *recdir);
 
 /* Locking:
  *
@@ -90,6 +83,11 @@ static void release_stateid_lockowners(struct nfs4_stateid *open_stp);
  */
 static DECLARE_MUTEX(client_sema);
 
+static kmem_cache_t *stateowner_slab = NULL;
+static kmem_cache_t *file_slab = NULL;
+static kmem_cache_t *stateid_slab = NULL;
+static kmem_cache_t *deleg_slab = NULL;
+
 void
 nfs4_lock_state(void)
 {
@@ -118,16 +116,36 @@ opaque_hashval(const void *ptr, int nbytes)
 /* forward declarations */
 static void release_stateowner(struct nfs4_stateowner *sop);
 static void release_stateid(struct nfs4_stateid *stp, int flags);
-static void release_file(struct nfs4_file *fp);
 
 /*
  * Delegation state
  */
 
 /* recall_lock protects the del_recall_lru */
-spinlock_t recall_lock;
+static spinlock_t recall_lock = SPIN_LOCK_UNLOCKED;
 static struct list_head del_recall_lru;
 
+static void
+free_nfs4_file(struct kref *kref)
+{
+	struct nfs4_file *fp = container_of(kref, struct nfs4_file, fi_ref);
+	list_del(&fp->fi_hash);
+	iput(fp->fi_inode);
+	kmem_cache_free(file_slab, fp);
+}
+
+static inline void
+put_nfs4_file(struct nfs4_file *fi)
+{
+	kref_put(&fi->fi_ref, free_nfs4_file);
+}
+
+static inline void
+get_nfs4_file(struct nfs4_file *fi)
+{
+	kref_get(&fi->fi_ref);
+}
+
 static struct nfs4_delegation *
 alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_fh *current_fh, u32 type)
 {
@@ -136,13 +154,14 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
 	struct nfs4_callback *cb = &stp->st_stateowner->so_client->cl_callback;
 
 	dprintk("NFSD alloc_init_deleg\n");
-	if ((dp = kmalloc(sizeof(struct nfs4_delegation),
-		GFP_KERNEL)) == NULL)
+	dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
+	if (dp == NULL)
 		return dp;
-	INIT_LIST_HEAD(&dp->dl_del_perfile);
-	INIT_LIST_HEAD(&dp->dl_del_perclnt);
+	INIT_LIST_HEAD(&dp->dl_perfile);
+	INIT_LIST_HEAD(&dp->dl_perclnt);
 	INIT_LIST_HEAD(&dp->dl_recall_lru);
 	dp->dl_client = clp;
+	get_nfs4_file(fp);
 	dp->dl_file = fp;
 	dp->dl_flock = NULL;
 	get_file(stp->st_vfs_file);
@@ -160,9 +179,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
 		        current_fh->fh_handle.fh_size);
 	dp->dl_time = 0;
 	atomic_set(&dp->dl_count, 1);
-	list_add(&dp->dl_del_perfile, &fp->fi_del_perfile);
-	list_add(&dp->dl_del_perclnt, &clp->cl_del_perclnt);
-	alloc_delegation++;
+	list_add(&dp->dl_perfile, &fp->fi_delegations);
+	list_add(&dp->dl_perclnt, &clp->cl_delegations);
 	return dp;
 }
 
@@ -171,8 +189,8 @@ nfs4_put_delegation(struct nfs4_delegation *dp)
 {
 	if (atomic_dec_and_test(&dp->dl_count)) {
 		dprintk("NFSD: freeing dp %p\n",dp);
-		kfree(dp);
-		free_delegation++;
+		put_nfs4_file(dp->dl_file);
+		kmem_cache_free(deleg_slab, dp);
 	}
 }
 
@@ -193,15 +211,14 @@ nfs4_close_delegation(struct nfs4_delegation *dp)
 	if (dp->dl_flock)
 		setlease(filp, F_UNLCK, &dp->dl_flock);
 	nfsd_close(filp);
-	vfsclose++;
 }
 
 /* Called under the state lock. */
 static void
 unhash_delegation(struct nfs4_delegation *dp)
 {
-	list_del_init(&dp->dl_del_perfile);
-	list_del_init(&dp->dl_del_perclnt);
+	list_del_init(&dp->dl_perfile);
+	list_del_init(&dp->dl_perclnt);
 	spin_lock(&recall_lock);
 	list_del_init(&dp->dl_recall_lru);
 	spin_unlock(&recall_lock);
@@ -220,8 +237,8 @@ unhash_delegation(struct nfs4_delegation *dp)
 
 #define clientid_hashval(id) \
 	((id) & CLIENT_HASH_MASK)
-#define clientstr_hashval(name, namelen) \
-	(opaque_hashval((name), (namelen)) & CLIENT_HASH_MASK)
+#define clientstr_hashval(name) \
+	(opaque_hashval((name), 8) & CLIENT_HASH_MASK)
 /*
  * reclaim_str_hashtbl[] holds known client info from previous reset/reboot
  * used in reboot/reset lease grace period processing
@@ -331,11 +348,11 @@ expire_client(struct nfs4_client *clp)
 
 	INIT_LIST_HEAD(&reaplist);
 	spin_lock(&recall_lock);
-	while (!list_empty(&clp->cl_del_perclnt)) {
-		dp = list_entry(clp->cl_del_perclnt.next, struct nfs4_delegation, dl_del_perclnt);
+	while (!list_empty(&clp->cl_delegations)) {
+		dp = list_entry(clp->cl_delegations.next, struct nfs4_delegation, dl_perclnt);
 		dprintk("NFSD: expire client. dp %p, fp %p\n", dp,
 				dp->dl_flock);
-		list_del_init(&dp->dl_del_perclnt);
+		list_del_init(&dp->dl_perclnt);
 		list_move(&dp->dl_recall_lru, &reaplist);
 	}
 	spin_unlock(&recall_lock);
@@ -347,26 +364,26 @@ expire_client(struct nfs4_client *clp)
 	list_del(&clp->cl_idhash);
 	list_del(&clp->cl_strhash);
 	list_del(&clp->cl_lru);
-	while (!list_empty(&clp->cl_perclient)) {
-		sop = list_entry(clp->cl_perclient.next, struct nfs4_stateowner, so_perclient);
+	while (!list_empty(&clp->cl_openowners)) {
+		sop = list_entry(clp->cl_openowners.next, struct nfs4_stateowner, so_perclient);
 		release_stateowner(sop);
 	}
 	put_nfs4_client(clp);
 }
 
 static struct nfs4_client *
-create_client(struct xdr_netobj name) {
+create_client(struct xdr_netobj name, char *recdir) {
 	struct nfs4_client *clp;
 
 	if (!(clp = alloc_client(name)))
 		goto out;
+	memcpy(clp->cl_recdir, recdir, HEXDIR_LEN);
 	atomic_set(&clp->cl_count, 1);
 	atomic_set(&clp->cl_callback.cb_set, 0);
-	clp->cl_callback.cb_parsed = 0;
 	INIT_LIST_HEAD(&clp->cl_idhash);
 	INIT_LIST_HEAD(&clp->cl_strhash);
-	INIT_LIST_HEAD(&clp->cl_perclient);
-	INIT_LIST_HEAD(&clp->cl_del_perclnt);
+	INIT_LIST_HEAD(&clp->cl_openowners);
+	INIT_LIST_HEAD(&clp->cl_delegations);
 	INIT_LIST_HEAD(&clp->cl_lru);
 out:
 	return clp;
@@ -392,11 +409,9 @@ copy_cred(struct svc_cred *target, struct svc_cred *source) {
 	get_group_info(target->cr_group_info);
 }
 
-static int
-cmp_name(struct xdr_netobj *n1, struct xdr_netobj *n2) {
-	if (!n1 || !n2)
-		return 0;
-	return((n1->len == n2->len) && !memcmp(n1->data, n2->data, n2->len));
+static inline int
+same_name(const char *n1, const char *n2) {
+	return 0 == memcmp(n1, n2, HEXDIR_LEN);
 }
 
 static int
@@ -446,7 +461,7 @@ check_name(struct xdr_netobj name) {
 	return 1;
 }
 
-void
+static void
 add_to_unconfirmed(struct nfs4_client *clp, unsigned int strhashval)
 {
 	unsigned int idhashval;
@@ -458,7 +473,7 @@ add_to_unconfirmed(struct nfs4_client *clp, unsigned int strhashval)
 	clp->cl_time = get_seconds();
 }
 
-void
+static void
 move_to_confirmed(struct nfs4_client *clp)
 {
 	unsigned int idhashval = clientid_hashval(clp->cl_clientid.cl_id);
@@ -468,8 +483,7 @@ move_to_confirmed(struct nfs4_client *clp)
 	list_del_init(&clp->cl_strhash);
 	list_del_init(&clp->cl_idhash);
 	list_add(&clp->cl_idhash, &conf_id_hashtbl[idhashval]);
-	strhashval = clientstr_hashval(clp->cl_name.data, 
-			clp->cl_name.len);
+	strhashval = clientstr_hashval(clp->cl_recdir);
 	list_add(&clp->cl_strhash, &conf_str_hashtbl[strhashval]);
 	renew_client(clp);
 }
@@ -500,6 +514,30 @@ find_unconfirmed_client(clientid_t *clid)
 	return NULL;
 }
 
+static struct nfs4_client *
+find_confirmed_client_by_str(const char *dname, unsigned int hashval)
+{
+	struct nfs4_client *clp;
+
+	list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) {
+		if (same_name(clp->cl_recdir, dname))
+			return clp;
+	}
+	return NULL;
+}
+
+static struct nfs4_client *
+find_unconfirmed_client_by_str(const char *dname, unsigned int hashval)
+{
+	struct nfs4_client *clp;
+
+	list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) {
+		if (same_name(clp->cl_recdir, dname))
+			return clp;
+	}
+	return NULL;
+}
+
 /* a helper function for parse_callback */
 static int
 parse_octet(unsigned int *lenp, char **addrp)
@@ -534,7 +572,7 @@ parse_octet(unsigned int *lenp, char **addrp)
 }
 
 /* parse and set the setclientid ipv4 callback address */
-int
+static int
 parse_ipv4(unsigned int addr_len, char *addr_val, unsigned int *cbaddrp, unsigned short *cbportp)
 {
 	int temp = 0;
@@ -570,7 +608,7 @@ parse_ipv4(unsigned int addr_len, char *addr_val, unsigned int *cbaddrp, unsigne
 	return 1;
 }
 
-void
+static void
 gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
 {
 	struct nfs4_callback *cb = &clp->cl_callback;
@@ -584,14 +622,12 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
 		goto out_err;
 	cb->cb_prog = se->se_callback_prog;
 	cb->cb_ident = se->se_callback_ident;
-	cb->cb_parsed = 1;
 	return;
 out_err:
 	printk(KERN_INFO "NFSD: this client (clientid %08x/%08x) "
 		"will not receive delegations\n",
 		clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
 
-	cb->cb_parsed = 0;
 	return;
 }
 
@@ -638,59 +674,43 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
 	};
 	nfs4_verifier		clverifier = setclid->se_verf;
 	unsigned int 		strhashval;
-	struct nfs4_client *	conf, * unconf, * new, * clp;
+	struct nfs4_client	*conf, *unconf, *new;
 	int 			status;
+	char                    dname[HEXDIR_LEN];
 	
 	status = nfserr_inval;
 	if (!check_name(clname))
 		goto out;
 
+	status = nfs4_make_rec_clidname(dname, &clname);
+	if (status)
+		goto out;
+
 	/* 
 	 * XXX The Duplicate Request Cache (DRC) has been checked (??)
 	 * We get here on a DRC miss.
 	 */
 
-	strhashval = clientstr_hashval(clname.data, clname.len);
+	strhashval = clientstr_hashval(dname);
 
-	conf = NULL;
 	nfs4_lock_state();
-	list_for_each_entry(clp, &conf_str_hashtbl[strhashval], cl_strhash) {
-		if (!cmp_name(&clp->cl_name, &clname))
-			continue;
+	conf = find_confirmed_client_by_str(dname, strhashval);
+	if (conf) {
 		/* 
 		 * CASE 0:
 		 * clname match, confirmed, different principal
 		 * or different ip_address
 		 */
 		status = nfserr_clid_inuse;
-		if (!cmp_creds(&clp->cl_cred,&rqstp->rq_cred)) {
-			printk("NFSD: setclientid: string in use by client"
-			"(clientid %08x/%08x)\n",
-			clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
-			goto out;
-		}
-		if (clp->cl_addr != ip_addr) { 
+		if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
+				|| conf->cl_addr != ip_addr) {
 			printk("NFSD: setclientid: string in use by client"
 			"(clientid %08x/%08x)\n",
-			clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
+			conf->cl_clientid.cl_boot, conf->cl_clientid.cl_id);
 			goto out;
 		}
-
-		/* 
-	 	 * cl_name match from a previous SETCLIENTID operation
-	 	 * XXX check for additional matches?
-		 */
-		conf = clp;
-		break;
-	}
-	unconf = NULL;
-	list_for_each_entry(clp, &unconf_str_hashtbl[strhashval], cl_strhash) {
-		if (!cmp_name(&clp->cl_name, &clname))
-			continue;
-		/* cl_name match from a previous SETCLIENTID operation */
-		unconf = clp;
-		break;
 	}
+	unconf = find_unconfirmed_client_by_str(dname, strhashval);
 	status = nfserr_resource;
 	if (!conf) {
 		/* 
@@ -699,7 +719,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
 		 */
 		if (unconf)
 			expire_client(unconf);
-		if (!(new = create_client(clname)))
+		new = create_client(clname, dname);
+		if (new == NULL)
 			goto out;
 		copy_verf(new, &clverifier);
 		new->cl_addr = ip_addr;
@@ -722,12 +743,16 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
 		 * nfs4_client,  but with the new callback info and a 
 		 * new cl_confirm
 		 */
-		if ((unconf) && 
-		    cmp_verf(&unconf->cl_verifier, &conf->cl_verifier) &&
-		     cmp_clid(&unconf->cl_clientid, &conf->cl_clientid)) {
-				expire_client(unconf);
+		if (unconf) {
+			/* Note this is removing unconfirmed {*x***},
+			 * which is stronger than RFC recommended {vxc**}.
+			 * This has the advantage that there is at most
+			 * one {*x***} in either list at any time.
+			 */
+			expire_client(unconf);
 		}
-		if (!(new = create_client(clname)))
+		new = create_client(clname, dname);
+		if (new == NULL)
 			goto out;
 		copy_verf(new,&conf->cl_verifier);
 		new->cl_addr = ip_addr;
@@ -745,7 +770,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
 		 * using input clverifier, clname, and callback info
 		 * and generate a new cl_clientid and cl_confirm.
 		 */
-		if (!(new = create_client(clname)))
+		new = create_client(clname, dname);
+		if (new == NULL)
 			goto out;
 		copy_verf(new,&clverifier);
 		new->cl_addr = ip_addr;
@@ -771,7 +797,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
 		 * new cl_verifier and a new cl_confirm
 		 */
 		expire_client(unconf);
-		if (!(new = create_client(clname)))
+		new = create_client(clname, dname);
+		if (new == NULL)
 			goto out;
 		copy_verf(new,&clverifier);
 		new->cl_addr = ip_addr;
@@ -807,7 +834,7 @@ int
 nfsd4_setclientid_confirm(struct svc_rqst *rqstp, struct nfsd4_setclientid_confirm *setclientid_confirm)
 {
 	u32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
-	struct nfs4_client *clp, *conf = NULL, *unconf = NULL;
+	struct nfs4_client *conf, *unconf;
 	nfs4_verifier confirm = setclientid_confirm->sc_confirm; 
 	clientid_t * clid = &setclientid_confirm->sc_clientid;
 	int status;
@@ -820,102 +847,90 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, struct nfsd4_setclientid_confi
 	 */
 
 	nfs4_lock_state();
-	clp = find_confirmed_client(clid);
-	if (clp) {
-		status = nfserr_inval;
-		/* 
-		 * Found a record for this clientid. If the IP addresses
-		 * don't match, return ERR_INVAL just as if the record had
-		 * not been found.
-		 */
-		if (clp->cl_addr != ip_addr) { 
-			printk("NFSD: setclientid: string in use by client"
-			"(clientid %08x/%08x)\n",
-			clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
-			goto out;
-		}
-		conf = clp;
-	}
-	clp = find_unconfirmed_client(clid);
-	if (clp) {
-		status = nfserr_inval;
-		if (clp->cl_addr != ip_addr) { 
-			printk("NFSD: setclientid: string in use by client"
-			"(clientid %08x/%08x)\n",
-			clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
-			goto out;
-		}
-		unconf = clp;
-	}
-	/* CASE 1: 
-	* unconf record that matches input clientid and input confirm.
-	* conf record that matches input clientid.
-	* conf  and unconf records match names, verifiers 
-	*/
+
+	conf = find_confirmed_client(clid);
+	unconf = find_unconfirmed_client(clid);
+
+	status = nfserr_clid_inuse;
+	if (conf && conf->cl_addr != ip_addr)
+		goto out;
+	if (unconf && unconf->cl_addr != ip_addr)
+		goto out;
+
 	if ((conf && unconf) && 
 	    (cmp_verf(&unconf->cl_confirm, &confirm)) &&
 	    (cmp_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
-	    (cmp_name(&conf->cl_name,&unconf->cl_name))  &&
+	    (same_name(conf->cl_recdir,unconf->cl_recdir))  &&
 	    (!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
+		/* CASE 1:
+		* unconf record that matches input clientid and input confirm.
+		* conf record that matches input clientid.
+		* conf and unconf records match names, verifiers
+		*/
 		if (!cmp_creds(&conf->cl_cred, &unconf->cl_cred)) 
 			status = nfserr_clid_inuse;
 		else {
-			expire_client(conf);
-			clp = unconf;
-			move_to_confirmed(unconf);
+			/* XXX: We just turn off callbacks until we can handle
+			  * change request correctly. */
+			atomic_set(&conf->cl_callback.cb_set, 0);
+			gen_confirm(conf);
+			expire_client(unconf);
 			status = nfs_ok;
+
 		}
-		goto out;
-	} 
-	/* CASE 2:
-	 * conf record that matches input clientid.
-	 * if unconf record that matches input clientid, then unconf->cl_name
-	 * or unconf->cl_verifier don't match the conf record.
-	 */
-	if ((conf && !unconf) || 
+	} else if ((conf && !unconf) ||
 	    ((conf && unconf) && 
 	     (!cmp_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
-	      !cmp_name(&conf->cl_name, &unconf->cl_name)))) {
-		if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred)) {
+	      !same_name(conf->cl_recdir, unconf->cl_recdir)))) {
+		/* CASE 2:
+		 * conf record that matches input clientid.
+		 * if unconf record matches input clientid, then
+		 * unconf->cl_name or unconf->cl_verifier don't match the
+		 * conf record.
+		 */
+		if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred))
 			status = nfserr_clid_inuse;
-		} else {
-			clp = conf;
+		else
 			status = nfs_ok;
-		}
-		goto out;
-	}
-	/* CASE 3:
-	 * conf record not found.
-	 * unconf record found. 
-	 * unconf->cl_confirm matches input confirm
-	 */ 
-	if (!conf && unconf && cmp_verf(&unconf->cl_confirm, &confirm)) {
+	} else if (!conf && unconf
+			&& cmp_verf(&unconf->cl_confirm, &confirm)) {
+		/* CASE 3:
+		 * conf record not found.
+		 * unconf record found.
+		 * unconf->cl_confirm matches input confirm
+		 */
 		if (!cmp_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
 			status = nfserr_clid_inuse;
 		} else {
-			status = nfs_ok;
-			clp = unconf;
+			unsigned int hash =
+				clientstr_hashval(unconf->cl_recdir);
+			conf = find_confirmed_client_by_str(unconf->cl_recdir,
+									hash);
+			if (conf) {
+				nfsd4_remove_clid_dir(conf);
+				expire_client(conf);
+			}
 			move_to_confirmed(unconf);
+			conf = unconf;
+			status = nfs_ok;
 		}
-		goto out;
-	}
-	/* CASE 4:
-	 * conf record not found, or if conf, then conf->cl_confirm does not
-	 * match input confirm.
-	 * unconf record not found, or if unconf, then unconf->cl_confirm 
-	 * does not match input confirm.
-	 */
-	if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm))) &&
-	    (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm, &confirm)))) {
+	} else if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm)))
+	    && (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm,
+				    				&confirm)))) {
+		/* CASE 4:
+		 * conf record not found, or if conf, conf->cl_confirm does not
+		 * match input confirm.
+		 * unconf record not found, or if unconf, unconf->cl_confirm
+		 * does not match input confirm.
+		 */
 		status = nfserr_stale_clientid;
-		goto out;
+	} else {
+		/* check that we have hit one of the cases...*/
+		status = nfserr_clid_inuse;
 	}
-	/* check that we have hit one of the cases...*/
-	status = nfserr_inval;
-	goto out;
 out:
 	if (!status)
-		nfsd4_probe_callback(clp);
+		nfsd4_probe_callback(conf);
 	nfs4_unlock_state();
 	return status;
 }
@@ -961,60 +976,65 @@ alloc_init_file(struct inode *ino)
 	struct nfs4_file *fp;
 	unsigned int hashval = file_hashval(ino);
 
-	if ((fp = kmalloc(sizeof(struct nfs4_file),GFP_KERNEL))) {
+	fp = kmem_cache_alloc(file_slab, GFP_KERNEL);
+	if (fp) {
+		kref_init(&fp->fi_ref);
 		INIT_LIST_HEAD(&fp->fi_hash);
-		INIT_LIST_HEAD(&fp->fi_perfile);
-		INIT_LIST_HEAD(&fp->fi_del_perfile);
+		INIT_LIST_HEAD(&fp->fi_stateids);
+		INIT_LIST_HEAD(&fp->fi_delegations);
 		list_add(&fp->fi_hash, &file_hashtbl[hashval]);
 		fp->fi_inode = igrab(ino);
 		fp->fi_id = current_fileid++;
-		alloc_file++;
 		return fp;
 	}
 	return NULL;
 }
 
 static void
-release_all_files(void)
+nfsd4_free_slab(kmem_cache_t **slab)
 {
-	int i;
-	struct nfs4_file *fp;
+	int status;
 
-	for (i=0;i<FILE_HASH_SIZE;i++) {
-		while (!list_empty(&file_hashtbl[i])) {
-			fp = list_entry(file_hashtbl[i].next, struct nfs4_file, fi_hash);
-			/* this should never be more than once... */
-			if (!list_empty(&fp->fi_perfile) || !list_empty(&fp->fi_del_perfile)) {
-				printk("ERROR: release_all_files: file %p is open, creating dangling state !!!\n",fp);
-			}
-			release_file(fp);
-		}
-	}
+	if (*slab == NULL)
+		return;
+	status = kmem_cache_destroy(*slab);
+	*slab = NULL;
+	WARN_ON(status);
 }
 
-kmem_cache_t *stateowner_slab = NULL;
+static void
+nfsd4_free_slabs(void)
+{
+	nfsd4_free_slab(&stateowner_slab);
+	nfsd4_free_slab(&file_slab);
+	nfsd4_free_slab(&stateid_slab);
+	nfsd4_free_slab(&deleg_slab);
+}
 
 static int
 nfsd4_init_slabs(void)
 {
 	stateowner_slab = kmem_cache_create("nfsd4_stateowners",
 			sizeof(struct nfs4_stateowner), 0, 0, NULL, NULL);
-	if (stateowner_slab == NULL) {
-		dprintk("nfsd4: out of memory while initializing nfsv4\n");
-		return -ENOMEM;
-	}
+	if (stateowner_slab == NULL)
+		goto out_nomem;
+	file_slab = kmem_cache_create("nfsd4_files",
+			sizeof(struct nfs4_file), 0, 0, NULL, NULL);
+	if (file_slab == NULL)
+		goto out_nomem;
+	stateid_slab = kmem_cache_create("nfsd4_stateids",
+			sizeof(struct nfs4_stateid), 0, 0, NULL, NULL);
+	if (stateid_slab == NULL)
+		goto out_nomem;
+	deleg_slab = kmem_cache_create("nfsd4_delegations",
+			sizeof(struct nfs4_delegation), 0, 0, NULL, NULL);
+	if (deleg_slab == NULL)
+		goto out_nomem;
 	return 0;
-}
-
-static void
-nfsd4_free_slabs(void)
-{
-	int status = 0;
-
-	if (stateowner_slab)
-		status = kmem_cache_destroy(stateowner_slab);
-	stateowner_slab = NULL;
-	BUG_ON(status);
+out_nomem:
+	nfsd4_free_slabs();
+	dprintk("nfsd4: out of memory while initializing nfsv4\n");
+	return -ENOMEM;
 }
 
 void
@@ -1055,14 +1075,13 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
 	INIT_LIST_HEAD(&sop->so_idhash);
 	INIT_LIST_HEAD(&sop->so_strhash);
 	INIT_LIST_HEAD(&sop->so_perclient);
-	INIT_LIST_HEAD(&sop->so_perfilestate);
-	INIT_LIST_HEAD(&sop->so_perlockowner);  /* not used */
+	INIT_LIST_HEAD(&sop->so_stateids);
+	INIT_LIST_HEAD(&sop->so_perstateid);  /* not used */
 	INIT_LIST_HEAD(&sop->so_close_lru);
 	sop->so_time = 0;
 	list_add(&sop->so_idhash, &ownerid_hashtbl[idhashval]);
 	list_add(&sop->so_strhash, &ownerstr_hashtbl[strhashval]);
-	list_add(&sop->so_perclient, &clp->cl_perclient);
-	add_perclient++;
+	list_add(&sop->so_perclient, &clp->cl_openowners);
 	sop->so_is_open_owner = 1;
 	sop->so_id = current_ownerid++;
 	sop->so_client = clp;
@@ -1080,10 +1099,10 @@ release_stateid_lockowners(struct nfs4_stateid *open_stp)
 {
 	struct nfs4_stateowner *lock_sop;
 
-	while (!list_empty(&open_stp->st_perlockowner)) {
-		lock_sop = list_entry(open_stp->st_perlockowner.next,
-				struct nfs4_stateowner, so_perlockowner);
-		/* list_del(&open_stp->st_perlockowner);  */
+	while (!list_empty(&open_stp->st_lockowners)) {
+		lock_sop = list_entry(open_stp->st_lockowners.next,
+				struct nfs4_stateowner, so_perstateid);
+		/* list_del(&open_stp->st_lockowners);  */
 		BUG_ON(lock_sop->so_is_open_owner);
 		release_stateowner(lock_sop);
 	}
@@ -1096,14 +1115,12 @@ unhash_stateowner(struct nfs4_stateowner *sop)
 
 	list_del(&sop->so_idhash);
 	list_del(&sop->so_strhash);
-	if (sop->so_is_open_owner) {
+	if (sop->so_is_open_owner)
 		list_del(&sop->so_perclient);
-		del_perclient++;
-	}
-	list_del(&sop->so_perlockowner);
-	while (!list_empty(&sop->so_perfilestate)) {
-		stp = list_entry(sop->so_perfilestate.next, 
-			struct nfs4_stateid, st_perfilestate);
+	list_del(&sop->so_perstateid);
+	while (!list_empty(&sop->so_stateids)) {
+		stp = list_entry(sop->so_stateids.next,
+			struct nfs4_stateid, st_perstateowner);
 		if (sop->so_is_open_owner)
 			release_stateid(stp, OPEN_STATE);
 		else
@@ -1125,14 +1142,14 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open *
 	unsigned int hashval = stateid_hashval(sop->so_id, fp->fi_id);
 
 	INIT_LIST_HEAD(&stp->st_hash);
-	INIT_LIST_HEAD(&stp->st_perfilestate);
-	INIT_LIST_HEAD(&stp->st_perlockowner);
+	INIT_LIST_HEAD(&stp->st_perstateowner);
+	INIT_LIST_HEAD(&stp->st_lockowners);
 	INIT_LIST_HEAD(&stp->st_perfile);
 	list_add(&stp->st_hash, &stateid_hashtbl[hashval]);
-	list_add(&stp->st_perfilestate, &sop->so_perfilestate);
-	list_add_perfile++;
-	list_add(&stp->st_perfile, &fp->fi_perfile);
+	list_add(&stp->st_perstateowner, &sop->so_stateids);
+	list_add(&stp->st_perfile, &fp->fi_stateids);
 	stp->st_stateowner = sop;
+	get_nfs4_file(fp);
 	stp->st_file = fp;
 	stp->st_stateid.si_boot = boot_time;
 	stp->st_stateid.si_stateownerid = sop->so_id;
@@ -1150,30 +1167,20 @@ release_stateid(struct nfs4_stateid *stp, int flags)
 	struct file *filp = stp->st_vfs_file;
 
 	list_del(&stp->st_hash);
-	list_del_perfile++;
 	list_del(&stp->st_perfile);
-	list_del(&stp->st_perfilestate);
+	list_del(&stp->st_perstateowner);
 	if (flags & OPEN_STATE) {
 		release_stateid_lockowners(stp);
 		stp->st_vfs_file = NULL;
 		nfsd_close(filp);
-		vfsclose++;
 	} else if (flags & LOCK_STATE)
 		locks_remove_posix(filp, (fl_owner_t) stp->st_stateowner);
-	kfree(stp);
+	put_nfs4_file(stp->st_file);
+	kmem_cache_free(stateid_slab, stp);
 	stp = NULL;
 }
 
 static void
-release_file(struct nfs4_file *fp)
-{
-	free_file++;
-	list_del(&fp->fi_hash);
-	iput(fp->fi_inode);
-	kfree(fp);
-}	
-
-void
 move_to_close_lru(struct nfs4_stateowner *sop)
 {
 	dprintk("NFSD: move_to_close_lru nfs4_stateowner %p\n", sop);
@@ -1183,11 +1190,10 @@ move_to_close_lru(struct nfs4_stateowner *sop)
 	sop->so_time = get_seconds();
 }
 
-void
+static void
 release_state_owner(struct nfs4_stateid *stp, int flag)
 {
 	struct nfs4_stateowner *sop = stp->st_stateowner;
-	struct nfs4_file *fp = stp->st_file;
 
 	dprintk("NFSD: release_state_owner\n");
 	release_stateid(stp, flag);
@@ -1196,12 +1202,8 @@ release_state_owner(struct nfs4_stateid *stp, int flag)
 	 * released by the laundromat service after the lease period
 	 * to enable us to handle CLOSE replay
 	 */
-	if (sop->so_confirmed && list_empty(&sop->so_perfilestate))
+	if (sop->so_confirmed && list_empty(&sop->so_stateids))
 		move_to_close_lru(sop);
-	/* unused nfs4_file's are releseed. XXX slab cache? */
-	if (list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile)) {
-		release_file(fp);
-	}
 }
 
 static int
@@ -1231,8 +1233,10 @@ find_file(struct inode *ino)
 	struct nfs4_file *fp;
 
 	list_for_each_entry(fp, &file_hashtbl[hashval], fi_hash) {
-		if (fp->fi_inode == ino)
+		if (fp->fi_inode == ino) {
+			get_nfs4_file(fp);
 			return fp;
+		}
 	}
 	return NULL;
 }
@@ -1240,7 +1244,7 @@ find_file(struct inode *ino)
 #define TEST_ACCESS(x) ((x > 0 || x < 4)?1:0)
 #define TEST_DENY(x) ((x >= 0 || x < 5)?1:0)
 
-void
+static void
 set_access(unsigned int *access, unsigned long bmap) {
 	int i;
 
@@ -1251,7 +1255,7 @@ set_access(unsigned int *access, unsigned long bmap) {
 	}
 }
 
-void
+static void
 set_deny(unsigned int *deny, unsigned long bmap) {
 	int i;
 
@@ -1277,25 +1281,30 @@ test_share(struct nfs4_stateid *stp, struct nfsd4_open *open) {
  * Called to check deny when READ with all zero stateid or
  * WRITE with all zero or all one stateid
  */
-int
+static int
 nfs4_share_conflict(struct svc_fh *current_fh, unsigned int deny_type)
 {
 	struct inode *ino = current_fh->fh_dentry->d_inode;
 	struct nfs4_file *fp;
 	struct nfs4_stateid *stp;
+	int ret;
 
 	dprintk("NFSD: nfs4_share_conflict\n");
 
 	fp = find_file(ino);
-	if (fp) {
+	if (!fp)
+		return nfs_ok;
+	ret = nfserr_share_denied;
 	/* Search for conflicting share reservations */
-		list_for_each_entry(stp, &fp->fi_perfile, st_perfile) {
-			if (test_bit(deny_type, &stp->st_deny_bmap) ||
-			    test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
-				return nfserr_share_denied;
-		}
+	list_for_each_entry(stp, &fp->fi_stateids, st_perfile) {
+		if (test_bit(deny_type, &stp->st_deny_bmap) ||
+		    test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
+			goto out;
 	}
-	return nfs_ok;
+	ret = nfs_ok;
+out:
+	put_nfs4_file(fp);
+	return ret;
 }
 
 static inline void
@@ -1427,7 +1436,7 @@ int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
 		return -EAGAIN;
 }
 
-struct lock_manager_operations nfsd_lease_mng_ops = {
+static struct lock_manager_operations nfsd_lease_mng_ops = {
 	.fl_break = nfsd_break_deleg_cb,
 	.fl_release_private = nfsd_release_deleg_cb,
 	.fl_copy_lock = nfsd_copy_lock_deleg_cb,
@@ -1526,6 +1535,51 @@ out:
 	return status;
 }
 
+static inline int
+nfs4_check_delegmode(struct nfs4_delegation *dp, int flags)
+{
+	if ((flags & WR_STATE) && (dp->dl_type == NFS4_OPEN_DELEGATE_READ))
+		return nfserr_openmode;
+	else
+		return nfs_ok;
+}
+
+static struct nfs4_delegation *
+find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
+{
+	struct nfs4_delegation *dp;
+
+	list_for_each_entry(dp, &fp->fi_delegations, dl_perfile) {
+		if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid)
+			return dp;
+	}
+	return NULL;
+}
+
+static int
+nfs4_check_deleg(struct nfs4_file *fp, struct nfsd4_open *open,
+		struct nfs4_delegation **dp)
+{
+	int flags;
+	int status = nfserr_bad_stateid;
+
+	*dp = find_delegation_file(fp, &open->op_delegate_stateid);
+	if (*dp == NULL)
+		goto out;
+	flags = open->op_share_access == NFS4_SHARE_ACCESS_READ ?
+						RD_STATE : WR_STATE;
+	status = nfs4_check_delegmode(*dp, flags);
+	if (status)
+		*dp = NULL;
+out:
+	if (open->op_claim_type != NFS4_OPEN_CLAIM_DELEGATE_CUR)
+		return nfs_ok;
+	if (status)
+		return status;
+	open->op_stateowner->so_confirmed = 1;
+	return nfs_ok;
+}
+
 static int
 nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_stateid **stpp)
 {
@@ -1533,7 +1587,7 @@ nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_state
 	int status = nfserr_share_denied;
 	struct nfs4_stateowner *sop = open->op_stateowner;
 
-	list_for_each_entry(local, &fp->fi_perfile, st_perfile) {
+	list_for_each_entry(local, &fp->fi_stateids, st_perfile) {
 		/* ignore lock owners */
 		if (local->st_stateowner->so_is_open_owner == 0)
 			continue;
@@ -1549,25 +1603,37 @@ out:
 	return status;
 }
 
+static inline struct nfs4_stateid *
+nfs4_alloc_stateid(void)
+{
+	return kmem_cache_alloc(stateid_slab, GFP_KERNEL);
+}
+
 static int
 nfs4_new_open(struct svc_rqst *rqstp, struct nfs4_stateid **stpp,
+		struct nfs4_delegation *dp,
 		struct svc_fh *cur_fh, int flags)
 {
 	struct nfs4_stateid *stp;
-	int status;
 
-	stp = kmalloc(sizeof(struct nfs4_stateid), GFP_KERNEL);
+	stp = nfs4_alloc_stateid();
 	if (stp == NULL)
 		return nfserr_resource;
 
-	status = nfsd_open(rqstp, cur_fh, S_IFREG, flags, &stp->st_vfs_file);
-	if (status) {
-		if (status == nfserr_dropit)
-			status = nfserr_jukebox;
-		kfree(stp);
-		return status;
+	if (dp) {
+		get_file(dp->dl_vfs_file);
+		stp->st_vfs_file = dp->dl_vfs_file;
+	} else {
+		int status;
+		status = nfsd_open(rqstp, cur_fh, S_IFREG, flags,
+				&stp->st_vfs_file);
+		if (status) {
+			if (status == nfserr_dropit)
+				status = nfserr_jukebox;
+			kmem_cache_free(stateid_slab, stp);
+			return status;
+		}
 	}
-	vfsopen++;
 	*stpp = stp;
 	return 0;
 }
@@ -1628,6 +1694,7 @@ nfs4_set_claim_prev(struct nfsd4_open *open, int *status)
 			*status = nfserr_reclaim_bad;
 		else {
 			open->op_stateowner->so_confirmed = 1;
+			open->op_stateowner->so_client->cl_firststate = 1;
 			open->op_stateowner->so_seqid--;
 		}
 	}
@@ -1646,14 +1713,30 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
 	int status, flag = 0;
 
 	flag = NFS4_OPEN_DELEGATE_NONE;
-	if (open->op_claim_type != NFS4_OPEN_CLAIM_NULL
-	     || !atomic_read(&cb->cb_set) || !sop->so_confirmed)
-		goto out;
-
-	if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
-		flag = NFS4_OPEN_DELEGATE_WRITE;
-	else
-		flag = NFS4_OPEN_DELEGATE_READ;
+	open->op_recall = 0;
+	switch (open->op_claim_type) {
+		case NFS4_OPEN_CLAIM_PREVIOUS:
+			if (!atomic_read(&cb->cb_set))
+				open->op_recall = 1;
+			flag = open->op_delegate_type;
+			if (flag == NFS4_OPEN_DELEGATE_NONE)
+				goto out;
+			break;
+		case NFS4_OPEN_CLAIM_NULL:
+			/* Let's not give out any delegations till everyone's
+			 * had the chance to reclaim theirs.... */
+			if (nfs4_in_grace())
+				goto out;
+			if (!atomic_read(&cb->cb_set) || !sop->so_confirmed)
+				goto out;
+			if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
+				flag = NFS4_OPEN_DELEGATE_WRITE;
+			else
+				flag = NFS4_OPEN_DELEGATE_READ;
+			break;
+		default:
+			goto out;
+	}
 
 	dp = alloc_init_deleg(sop->so_client, stp, fh, flag);
 	if (dp == NULL) {
@@ -1687,6 +1770,10 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
 	             dp->dl_stateid.si_fileid,
 	             dp->dl_stateid.si_generation);
 out:
+	if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
+			&& flag == NFS4_OPEN_DELEGATE_NONE
+			&& open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
+		printk("NFSD: WARNING: refusing delegation reclaim\n");
 	open->op_delegate_type = flag;
 }
 
@@ -1699,6 +1786,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	struct nfs4_file *fp = NULL;
 	struct inode *ino = current_fh->fh_dentry->d_inode;
 	struct nfs4_stateid *stp = NULL;
+	struct nfs4_delegation *dp = NULL;
 	int status;
 
 	status = nfserr_inval;
@@ -1713,7 +1801,13 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	if (fp) {
 		if ((status = nfs4_check_open(fp, open, &stp)))
 			goto out;
+		status = nfs4_check_deleg(fp, open, &dp);
+		if (status)
+			goto out;
 	} else {
+		status = nfserr_bad_stateid;
+		if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
+			goto out;
 		status = nfserr_resource;
 		fp = alloc_init_file(ino);
 		if (fp == NULL)
@@ -1736,7 +1830,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 			flags = MAY_WRITE;
 		else
 			flags = MAY_READ;
-		if ((status = nfs4_new_open(rqstp, &stp, current_fh, flags)))
+		status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
+		if (status)
 			goto out;
 		init_stateid(stp, fp, open);
 		status = nfsd4_truncate(rqstp, current_fh, open);
@@ -1759,10 +1854,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
 	            stp->st_stateid.si_boot, stp->st_stateid.si_stateownerid,
 	            stp->st_stateid.si_fileid, stp->st_stateid.si_generation);
 out:
-	/* take the opportunity to clean up unused state */
-	if (fp && list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile))
-		release_file(fp);
-
+	if (fp)
+		put_nfs4_file(fp);
 	/* CLAIM_PREVIOUS has different error returns */
 	nfs4_set_claim_prev(open, &status);
 	/*
@@ -1775,6 +1868,7 @@ out:
 	return status;
 }
 
+static struct workqueue_struct *laundry_wq;
 static struct work_struct laundromat_work;
 static void laundromat_main(void *);
 static DECLARE_WORK(laundromat_work, laundromat_main, NULL);
@@ -1800,7 +1894,7 @@ nfsd4_renew(clientid_t *clid)
 	}
 	renew_client(clp);
 	status = nfserr_cb_path_down;
-	if (!list_empty(&clp->cl_del_perclnt)
+	if (!list_empty(&clp->cl_delegations)
 			&& !atomic_read(&clp->cl_callback.cb_set))
 		goto out;
 	status = nfs_ok;
@@ -1809,7 +1903,15 @@ out:
 	return status;
 }
 
-time_t
+static void
+end_grace(void)
+{
+	dprintk("NFSD: end of grace period\n");
+	nfsd4_recdir_purge_old();
+	in_grace = 0;
+}
+
+static time_t
 nfs4_laundromat(void)
 {
 	struct nfs4_client *clp;
@@ -1823,6 +1925,8 @@ nfs4_laundromat(void)
 	nfs4_lock_state();
 
 	dprintk("NFSD: laundromat service - starting\n");
+	if (in_grace)
+		end_grace();
 	list_for_each_safe(pos, next, &client_lru) {
 		clp = list_entry(pos, struct nfs4_client, cl_lru);
 		if (time_after((unsigned long)clp->cl_time, (unsigned long)cutoff)) {
@@ -1833,6 +1937,7 @@ nfs4_laundromat(void)
 		}
 		dprintk("NFSD: purging unused client (clientid %08x)\n",
 			clp->cl_clientid.cl_id);
+		nfsd4_remove_clid_dir(clp);
 		expire_client(clp);
 	}
 	INIT_LIST_HEAD(&reaplist);
@@ -1882,13 +1987,13 @@ laundromat_main(void *not_used)
 
 	t = nfs4_laundromat();
 	dprintk("NFSD: laundromat_main - sleeping for %ld seconds\n", t);
-	schedule_delayed_work(&laundromat_work, t*HZ);
+	queue_delayed_work(laundry_wq, &laundromat_work, t*HZ);
 }
 
 /* search ownerid_hashtbl[] and close_lru for stateid owner
  * (stateid->si_stateownerid)
  */
-struct nfs4_stateowner *
+static struct nfs4_stateowner *
 find_openstateowner_id(u32 st_id, int flags) {
 	struct nfs4_stateowner *local = NULL;
 
@@ -1949,15 +2054,6 @@ out:
 }
 
 static inline int
-nfs4_check_delegmode(struct nfs4_delegation *dp, int flags)
-{
-	if ((flags & WR_STATE) && (dp->dl_type == NFS4_OPEN_DELEGATE_READ))
-		return nfserr_openmode;
-	else
-		return nfs_ok;
-}
-
-static inline int
 check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags)
 {
 	/* Trying to call delegreturn with a special stateid? Yuch: */
@@ -2071,7 +2167,7 @@ out:
 /* 
  * Checks for sequence id mutating operations. 
  */
-int
+static int
 nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *stateid, int flags, struct nfs4_stateowner **sopp, struct nfs4_stateid **stpp, clientid_t *lockclid)
 {
 	int status;
@@ -2230,6 +2326,8 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfs
 		         stp->st_stateid.si_stateownerid,
 		         stp->st_stateid.si_fileid,
 		         stp->st_stateid.si_generation);
+
+	nfsd4_create_clid_dir(sop->so_client);
 out:
 	if (oc->oc_stateowner)
 		nfs4_get_stateowner(oc->oc_stateowner);
@@ -2387,7 +2485,7 @@ static struct list_head lock_ownerid_hashtbl[LOCK_HASH_SIZE];
 static struct list_head	lock_ownerstr_hashtbl[LOCK_HASH_SIZE];
 static struct list_head lockstateid_hashtbl[STATEID_HASH_SIZE];
 
-struct nfs4_stateid *
+static struct nfs4_stateid *
 find_stateid(stateid_t *stid, int flags)
 {
 	struct nfs4_stateid *local = NULL;
@@ -2419,25 +2517,19 @@ find_stateid(stateid_t *stid, int flags)
 static struct nfs4_delegation *
 find_delegation_stateid(struct inode *ino, stateid_t *stid)
 {
-	struct nfs4_delegation *dp = NULL;
-	struct nfs4_file *fp = NULL;
-	u32 st_id;
+	struct nfs4_file *fp;
+	struct nfs4_delegation *dl;
 
 	dprintk("NFSD:find_delegation_stateid stateid=(%08x/%08x/%08x/%08x)\n",
                     stid->si_boot, stid->si_stateownerid,
                     stid->si_fileid, stid->si_generation);
 
-	st_id = stid->si_stateownerid;
 	fp = find_file(ino);
-	if (fp) {
-		list_for_each_entry(dp, &fp->fi_del_perfile, dl_del_perfile) {
-			if(dp->dl_stateid.si_stateownerid == st_id) {
-				dprintk("NFSD: find_delegation dp %p\n",dp);
-				return dp;
-			}
-		}
-	}
-	return NULL;
+	if (!fp)
+		return NULL;
+	dl = find_delegation_file(fp, stid);
+	put_nfs4_file(fp);
+	return dl;
 }
 
 /*
@@ -2457,7 +2549,7 @@ nfs4_transform_lock_offset(struct file_lock *lock)
 		lock->fl_end = OFFSET_MAX;
 }
 
-int
+static int
 nfs4_verify_lock_stateowner(struct nfs4_stateowner *sop, unsigned int hashval)
 {
 	struct nfs4_stateowner *local = NULL;
@@ -2498,22 +2590,6 @@ nfs4_set_lock_denied(struct file_lock *fl, struct nfsd4_lock_denied *deny)
 }
 
 static struct nfs4_stateowner *
-find_lockstateowner(struct xdr_netobj *owner, clientid_t *clid)
-{
-	struct nfs4_stateowner *local = NULL;
-	int i;
-
-	for (i = 0; i < LOCK_HASH_SIZE; i++) {
-		list_for_each_entry(local, &lock_ownerid_hashtbl[i], so_idhash) {
-			if (!cmp_owner_str(local, owner, clid))
-				continue;
-			return local;
-		}
-	}
-	return NULL;
-}
-
-static struct nfs4_stateowner *
 find_lockstateowner_str(struct inode *inode, clientid_t *clid,
 		struct xdr_netobj *owner)
 {
@@ -2548,13 +2624,13 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
 	INIT_LIST_HEAD(&sop->so_idhash);
 	INIT_LIST_HEAD(&sop->so_strhash);
 	INIT_LIST_HEAD(&sop->so_perclient);
-	INIT_LIST_HEAD(&sop->so_perfilestate);
-	INIT_LIST_HEAD(&sop->so_perlockowner);
+	INIT_LIST_HEAD(&sop->so_stateids);
+	INIT_LIST_HEAD(&sop->so_perstateid);
 	INIT_LIST_HEAD(&sop->so_close_lru); /* not used */
 	sop->so_time = 0;
 	list_add(&sop->so_idhash, &lock_ownerid_hashtbl[idhashval]);
 	list_add(&sop->so_strhash, &lock_ownerstr_hashtbl[strhashval]);
-	list_add(&sop->so_perlockowner, &open_stp->st_perlockowner);
+	list_add(&sop->so_perstateid, &open_stp->st_lockowners);
 	sop->so_is_open_owner = 0;
 	sop->so_id = current_ownerid++;
 	sop->so_client = clp;
@@ -2567,24 +2643,24 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
 	return sop;
 }
 
-struct nfs4_stateid *
+static struct nfs4_stateid *
 alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struct nfs4_stateid *open_stp)
 {
 	struct nfs4_stateid *stp;
 	unsigned int hashval = stateid_hashval(sop->so_id, fp->fi_id);
 
-	if ((stp = kmalloc(sizeof(struct nfs4_stateid), 
-					GFP_KERNEL)) == NULL)
+	stp = nfs4_alloc_stateid();
+	if (stp == NULL)
 		goto out;
 	INIT_LIST_HEAD(&stp->st_hash);
 	INIT_LIST_HEAD(&stp->st_perfile);
-	INIT_LIST_HEAD(&stp->st_perfilestate);
-	INIT_LIST_HEAD(&stp->st_perlockowner); /* not used */
+	INIT_LIST_HEAD(&stp->st_perstateowner);
+	INIT_LIST_HEAD(&stp->st_lockowners); /* not used */
 	list_add(&stp->st_hash, &lockstateid_hashtbl[hashval]);
-	list_add(&stp->st_perfile, &fp->fi_perfile);
-	list_add_perfile++;
-	list_add(&stp->st_perfilestate, &sop->so_perfilestate);
+	list_add(&stp->st_perfile, &fp->fi_stateids);
+	list_add(&stp->st_perstateowner, &sop->so_stateids);
 	stp->st_stateowner = sop;
+	get_nfs4_file(fp);
 	stp->st_file = fp;
 	stp->st_stateid.si_boot = boot_time;
 	stp->st_stateid.si_stateownerid = sop->so_id;
@@ -2598,7 +2674,7 @@ out:
 	return stp;
 }
 
-int
+static int
 check_lock_length(u64 offset, u64 length)
 {
 	return ((length == 0)  || ((length != ~(u64)0) &&
@@ -2611,7 +2687,7 @@ check_lock_length(u64 offset, u64 length)
 int
 nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock *lock)
 {
-	struct nfs4_stateowner *lock_sop = NULL, *open_sop = NULL;
+	struct nfs4_stateowner *open_sop = NULL;
 	struct nfs4_stateid *lock_stp;
 	struct file *filp;
 	struct file_lock file_lock;
@@ -2670,16 +2746,9 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
 		strhashval = lock_ownerstr_hashval(fp->fi_inode, 
 				open_sop->so_client->cl_clientid.cl_id, 
 				&lock->v.new.owner);
-		/* 
-		 * If we already have this lock owner, the client is in 
-		 * error (or our bookeeping is wrong!) 
-		 * for asking for a 'new lock'.
-		 */
-		status = nfserr_bad_stateid;
-		lock_sop = find_lockstateowner(&lock->v.new.owner,
-						&lock->v.new.clientid);
-		if (lock_sop)
-			goto out;
+		/* XXX: Do we need to check for duplicate stateowners on
+		 * the same file, or should they just be allowed (and
+		 * create new stateids)? */
 		status = nfserr_resource;
 		if (!(lock->lk_stateowner = alloc_init_lock_stateowner(strhashval, open_sop->so_client, open_stp, lock)))
 			goto out;
@@ -2970,8 +3039,11 @@ int
 nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *rlockowner)
 {
 	clientid_t *clid = &rlockowner->rl_clientid;
-	struct nfs4_stateowner *local = NULL;
+	struct nfs4_stateowner *sop;
+	struct nfs4_stateid *stp;
 	struct xdr_netobj *owner = &rlockowner->rl_owner;
+	struct list_head matches;
+	int i;
 	int status;
 
 	dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
@@ -2987,22 +3059,32 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *
 
 	nfs4_lock_state();
 
-	status = nfs_ok;
-	local = find_lockstateowner(owner, clid);
-	if (local) {
-		struct nfs4_stateid *stp;
-
-		/* check for any locks held by any stateid
-		 * associated with the (lock) stateowner */
-		status = nfserr_locks_held;
-		list_for_each_entry(stp, &local->so_perfilestate,
-				st_perfilestate) {
-			if (check_for_locks(stp->st_vfs_file, local))
-				goto out;
+	status = nfserr_locks_held;
+	/* XXX: we're doing a linear search through all the lockowners.
+	 * Yipes!  For now we'll just hope clients aren't really using
+	 * release_lockowner much, but eventually we have to fix these
+	 * data structures. */
+	INIT_LIST_HEAD(&matches);
+	for (i = 0; i < LOCK_HASH_SIZE; i++) {
+		list_for_each_entry(sop, &lock_ownerid_hashtbl[i], so_idhash) {
+			if (!cmp_owner_str(sop, owner, clid))
+				continue;
+			list_for_each_entry(stp, &sop->so_stateids,
+					st_perstateowner) {
+				if (check_for_locks(stp->st_vfs_file, sop))
+					goto out;
+				/* Note: so_perclient unused for lockowners,
+				 * so it's OK to fool with here. */
+				list_add(&sop->so_perclient, &matches);
+			}
 		}
-		/* no locks held by (lock) stateowner */
-		status = nfs_ok;
-		release_stateowner(local);
+	}
+	/* Clients probably won't expect us to return with some (but not all)
+	 * of the lockowner state released; so don't release any until all
+	 * have been checked. */
+	status = nfs_ok;
+	list_for_each_entry(sop, &matches, so_perclient) {
+		release_stateowner(sop);
 	}
 out:
 	nfs4_unlock_state();
@@ -3010,39 +3092,38 @@ out:
 }
 
 static inline struct nfs4_client_reclaim *
-alloc_reclaim(int namelen)
+alloc_reclaim(void)
 {
-	struct nfs4_client_reclaim *crp = NULL;
+	return kmalloc(sizeof(struct nfs4_client_reclaim), GFP_KERNEL);
+}
 
-	crp = kmalloc(sizeof(struct nfs4_client_reclaim), GFP_KERNEL);
-	if (!crp)
-		return NULL;
-	crp->cr_name.data = kmalloc(namelen, GFP_KERNEL);
-	if (!crp->cr_name.data) {
-		kfree(crp);
-		return NULL;
-	}
-	return crp;
+int
+nfs4_has_reclaimed_state(const char *name)
+{
+	unsigned int strhashval = clientstr_hashval(name);
+	struct nfs4_client *clp;
+
+	clp = find_confirmed_client_by_str(name, strhashval);
+	return clp ? 1 : 0;
 }
 
 /*
  * failure => all reset bets are off, nfserr_no_grace...
  */
-static int
-nfs4_client_to_reclaim(char *name, int namlen)
+int
+nfs4_client_to_reclaim(const char *name)
 {
 	unsigned int strhashval;
 	struct nfs4_client_reclaim *crp = NULL;
 
-	dprintk("NFSD nfs4_client_to_reclaim NAME: %.*s\n", namlen, name);
-	crp = alloc_reclaim(namlen);
+	dprintk("NFSD nfs4_client_to_reclaim NAME: %.*s\n", HEXDIR_LEN, name);
+	crp = alloc_reclaim();
 	if (!crp)
 		return 0;
-	strhashval = clientstr_hashval(name, namlen);
+	strhashval = clientstr_hashval(name);
 	INIT_LIST_HEAD(&crp->cr_strhash);
 	list_add(&crp->cr_strhash, &reclaim_str_hashtbl[strhashval]);
-	memcpy(crp->cr_name.data, name, namlen);
-	crp->cr_name.len = namlen;
+	memcpy(crp->cr_recdir, name, HEXDIR_LEN);
 	reclaim_str_hashtbl_size++;
 	return 1;
 }
@@ -3053,13 +3134,11 @@ nfs4_release_reclaim(void)
 	struct nfs4_client_reclaim *crp = NULL;
 	int i;
 
-	BUG_ON(!nfs4_reclaim_init);
 	for (i = 0; i < CLIENT_HASH_SIZE; i++) {
 		while (!list_empty(&reclaim_str_hashtbl[i])) {
 			crp = list_entry(reclaim_str_hashtbl[i].next,
 			                struct nfs4_client_reclaim, cr_strhash);
 			list_del(&crp->cr_strhash);
-			kfree(crp->cr_name.data);
 			kfree(crp);
 			reclaim_str_hashtbl_size--;
 		}
@@ -3069,7 +3148,7 @@ nfs4_release_reclaim(void)
 
 /*
  * called from OPEN, CLAIM_PREVIOUS with a new clientid. */
-struct nfs4_client_reclaim *
+static struct nfs4_client_reclaim *
 nfs4_find_reclaim_client(clientid_t *clid)
 {
 	unsigned int strhashval;
@@ -3082,13 +3161,14 @@ nfs4_find_reclaim_client(clientid_t *clid)
 	if (clp == NULL)
 		return NULL;
 
-	dprintk("NFSD: nfs4_find_reclaim_client for %.*s\n",
-		            clp->cl_name.len, clp->cl_name.data);
+	dprintk("NFSD: nfs4_find_reclaim_client for %.*s with recdir %s\n",
+		            clp->cl_name.len, clp->cl_name.data,
+			    clp->cl_recdir);
 
 	/* find clp->cl_name in reclaim_str_hashtbl */
-	strhashval = clientstr_hashval(clp->cl_name.data, clp->cl_name.len);
+	strhashval = clientstr_hashval(clp->cl_recdir);
 	list_for_each_entry(crp, &reclaim_str_hashtbl[strhashval], cr_strhash) {
-		if (cmp_name(&crp->cr_name, &clp->cl_name)) {
+		if (same_name(crp->cr_recdir, clp->cl_recdir)) {
 			return crp;
 		}
 	}
@@ -3101,30 +3181,16 @@ nfs4_find_reclaim_client(clientid_t *clid)
 int
 nfs4_check_open_reclaim(clientid_t *clid)
 {
-	struct nfs4_client_reclaim *crp;
-
-	if ((crp = nfs4_find_reclaim_client(clid)) == NULL)
-		return nfserr_reclaim_bad;
-	return nfs_ok;
+	return nfs4_find_reclaim_client(clid) ? nfs_ok : nfserr_reclaim_bad;
 }
 
+/* initialization to perform at module load time: */
 
-/* 
- * Start and stop routines
- */
-
-static void
-__nfs4_state_init(void)
+void
+nfs4_state_init(void)
 {
 	int i;
-	time_t grace_time;
 
-	if (!nfs4_reclaim_init) {
-		for (i = 0; i < CLIENT_HASH_SIZE; i++)
-			INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
-		reclaim_str_hashtbl_size = 0;
-		nfs4_reclaim_init = 1;
-	}
 	for (i = 0; i < CLIENT_HASH_SIZE; i++) {
 		INIT_LIST_HEAD(&conf_id_hashtbl[i]);
 		INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -3146,26 +3212,46 @@ __nfs4_state_init(void)
 		INIT_LIST_HEAD(&lock_ownerid_hashtbl[i]);
 		INIT_LIST_HEAD(&lock_ownerstr_hashtbl[i]);
 	}
-	memset(&zerostateid, 0, sizeof(stateid_t));
 	memset(&onestateid, ~0, sizeof(stateid_t));
-
 	INIT_LIST_HEAD(&close_lru);
 	INIT_LIST_HEAD(&client_lru);
 	INIT_LIST_HEAD(&del_recall_lru);
-	spin_lock_init(&recall_lock);
+	for (i = 0; i < CLIENT_HASH_SIZE; i++)
+		INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
+	reclaim_str_hashtbl_size = 0;
+}
+
+static void
+nfsd4_load_reboot_recovery_data(void)
+{
+	int status;
+
+	nfs4_lock_state();
+	nfsd4_init_recdir(user_recovery_dirname);
+	status = nfsd4_recdir_load();
+	nfs4_unlock_state();
+	if (status)
+		printk("NFSD: Failure reading reboot recovery data\n");
+}
+
+/* initialization to perform when the nfsd service is started: */
+
+static void
+__nfs4_state_start(void)
+{
+	time_t grace_time;
+
 	boot_time = get_seconds();
-	grace_time = max(old_lease_time, lease_time);
-	if (reclaim_str_hashtbl_size == 0)
-		grace_time = 0;
-	if (grace_time)
-		printk("NFSD: starting %ld-second grace period\n", grace_time);
-	grace_end = boot_time + grace_time;
-	INIT_WORK(&laundromat_work,laundromat_main, NULL);
-	schedule_delayed_work(&laundromat_work, NFSD_LEASE_TIME*HZ);
+	grace_time = max(user_lease_time, lease_time);
+	lease_time = user_lease_time;
+	in_grace = 1;
+	printk("NFSD: starting %ld-second grace period\n", grace_time);
+	laundry_wq = create_singlethread_workqueue("nfsd4");
+	queue_delayed_work(laundry_wq, &laundromat_work, grace_time*HZ);
 }
 
 int
-nfs4_state_init(void)
+nfs4_state_start(void)
 {
 	int status;
 
@@ -3174,7 +3260,8 @@ nfs4_state_init(void)
 	status = nfsd4_init_slabs();
 	if (status)
 		return status;
-	__nfs4_state_init();
+	nfsd4_load_reboot_recovery_data();
+	__nfs4_state_start();
 	nfs4_init = 1;
 	return 0;
 }
@@ -3182,14 +3269,7 @@ nfs4_state_init(void)
 int
 nfs4_in_grace(void)
 {
-	return get_seconds() < grace_end;
-}
-
-void
-set_no_grace(void)
-{
-	printk("NFSD: ERROR in reboot recovery.  State reclaims will fail.\n");
-	grace_end = get_seconds();
+	return in_grace;
 }
 
 time_t
@@ -3236,21 +3316,11 @@ __nfs4_state_shutdown(void)
 		unhash_delegation(dp);
 	}
 
-	release_all_files();
 	cancel_delayed_work(&laundromat_work);
-	flush_scheduled_work();
+	flush_workqueue(laundry_wq);
+	destroy_workqueue(laundry_wq);
+	nfsd4_shutdown_recdir();
 	nfs4_init = 0;
-	dprintk("NFSD: list_add_perfile %d list_del_perfile %d\n",
-			list_add_perfile, list_del_perfile);
-	dprintk("NFSD: add_perclient %d del_perclient %d\n",
-			add_perclient, del_perclient);
-	dprintk("NFSD: alloc_file %d free_file %d\n",
-			alloc_file, free_file);
-	dprintk("NFSD: vfsopen %d vfsclose %d\n",
-			vfsopen, vfsclose);
-	dprintk("NFSD: alloc_delegation %d free_delegation %d\n",
-			alloc_delegation, free_delegation);
-
 }
 
 void
@@ -3263,56 +3333,48 @@ nfs4_state_shutdown(void)
 	nfs4_unlock_state();
 }
 
+static void
+nfs4_set_recdir(char *recdir)
+{
+	nfs4_lock_state();
+	strcpy(user_recovery_dirname, recdir);
+	nfs4_unlock_state();
+}
+
+/*
+ * Change the NFSv4 recovery directory to recdir.
+ */
+int
+nfs4_reset_recoverydir(char *recdir)
+{
+	int status;
+	struct nameidata nd;
+
+	status = path_lookup(recdir, LOOKUP_FOLLOW, &nd);
+	if (status)
+		return status;
+	status = -ENOTDIR;
+	if (S_ISDIR(nd.dentry->d_inode->i_mode)) {
+		nfs4_set_recdir(recdir);
+		status = 0;
+	}
+	path_release(&nd);
+	return status;
+}
+
 /*
  * Called when leasetime is changed.
  *
- * if nfsd is not started, simply set the global lease.
- *
- * if nfsd(s) are running, lease change requires nfsv4 state to be reset.
- * e.g: boot_time is reset, existing nfs4_client structs are
- * used to fill reclaim_str_hashtbl, then all state (except for the
- * reclaim_str_hashtbl) is re-initialized.
- *
- * if the old lease time is greater than the new lease time, the grace
- * period needs to be set to the old lease time to allow clients to reclaim
- * their state. XXX - we may want to set the grace period == lease time
- * after an initial grace period == old lease time
- *
- * if an error occurs in this process, the new lease is set, but the server
- * will not honor OPEN or LOCK reclaims, and will return nfserr_no_grace
- * which means OPEN/LOCK/READ/WRITE will fail during grace period.
- *
- * clients will attempt to reset all state with SETCLIENTID/CONFIRM, and
- * OPEN and LOCK reclaims.
+ * The only way the protocol gives us to handle on-the-fly lease changes is to
+ * simulate a reboot.  Instead of doing that, we just wait till the next time
+ * we start to register any changes in lease time.  If the administrator
+ * really wants to change the lease time *now*, they can go ahead and bring
+ * nfsd down and then back up again after changing the lease time.
  */
 void
 nfs4_reset_lease(time_t leasetime)
 {
-	struct nfs4_client *clp;
-	int i;
-
-	printk("NFSD: New leasetime %ld\n",leasetime);
-	if (!nfs4_init)
-		return;
-	nfs4_lock_state();
-	old_lease_time = lease_time;
-	lease_time = leasetime;
-
-	nfs4_release_reclaim();
-
-	/* populate reclaim_str_hashtbl with current confirmed nfs4_clientid */
-	for (i = 0; i < CLIENT_HASH_SIZE; i++) {
-		list_for_each_entry(clp, &conf_id_hashtbl[i], cl_idhash) {
-			if (!nfs4_client_to_reclaim(clp->cl_name.data,
-						clp->cl_name.len)) {
-				nfs4_release_reclaim();
-				goto init_state;
-			}
-		}
-	}
-init_state:
-	__nfs4_state_shutdown();
-	__nfs4_state_init();
-	nfs4_unlock_state();
+	lock_kernel();
+	user_lease_time = leasetime;
+	unlock_kernel();
 }
-
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 36a058a..91fb171 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -136,7 +136,7 @@ xdr_error:					\
 	}					\
 } while (0)
 
-u32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
+static u32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
 {
 	/* We want more bytes than seem to be available.
 	 * Maybe we need a new page, maybe we have just run out
@@ -190,7 +190,7 @@ defer_free(struct nfsd4_compoundargs *argp,
 	return 0;
 }
 
-char *savemem(struct nfsd4_compoundargs *argp, u32 *p, int nbytes)
+static char *savemem(struct nfsd4_compoundargs *argp, u32 *p, int nbytes)
 {
 	void *new = NULL;
 	if (p == argp->tmp) {
@@ -1366,7 +1366,10 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
 	if (bmval0 & FATTR4_WORD0_FH_EXPIRE_TYPE) {
 		if ((buflen -= 4) < 0)
 			goto out_resource;
-		WRITE32( NFS4_FH_NOEXPIRE_WITH_OPEN | NFS4_FH_VOL_RENAME );
+		if (exp->ex_flags & NFSEXP_NOSUBTREECHECK)
+			WRITE32(NFS4_FH_VOLATILE_ANY);
+		else
+			WRITE32(NFS4_FH_VOLATILE_ANY|NFS4_FH_VOL_RENAME);
 	}
 	if (bmval0 & FATTR4_WORD0_CHANGE) {
 		/*
@@ -1969,7 +1972,7 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, int nfserr, struct nfsd4_open
 	case NFS4_OPEN_DELEGATE_READ:
 		RESERVE_SPACE(20 + sizeof(stateid_t));
 		WRITEMEM(&open->op_delegate_stateid, sizeof(stateid_t));
-		WRITE32(0);
+		WRITE32(open->op_recall);
 
 		/*
 		 * TODO: ACE's in delegations
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 161afdc..841c562 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -51,6 +51,7 @@ enum {
 	NFSD_Fh,
 	NFSD_Threads,
 	NFSD_Leasetime,
+	NFSD_RecoveryDir,
 };
 
 /*
@@ -66,6 +67,7 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size);
 static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
 static ssize_t write_threads(struct file *file, char *buf, size_t size);
 static ssize_t write_leasetime(struct file *file, char *buf, size_t size);
+static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
 
 static ssize_t (*write_op[])(struct file *, char *, size_t) = {
 	[NFSD_Svc] = write_svc,
@@ -78,6 +80,7 @@ static ssize_t (*write_op[])(struct file *, char *, size_t) = {
 	[NFSD_Fh] = write_filehandle,
 	[NFSD_Threads] = write_threads,
 	[NFSD_Leasetime] = write_leasetime,
+	[NFSD_RecoveryDir] = write_recoverydir,
 };
 
 static ssize_t nfsctl_transaction_write(struct file *file, const char __user *buf, size_t size, loff_t *pos)
@@ -349,6 +352,25 @@ static ssize_t write_leasetime(struct file *file, char *buf, size_t size)
 	return strlen(buf);
 }
 
+static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
+{
+	char *mesg = buf;
+	char *recdir;
+	int len, status;
+
+	if (size > PATH_MAX || buf[size-1] != '\n')
+		return -EINVAL;
+	buf[size-1] = 0;
+
+	recdir = mesg;
+	len = qword_get(&mesg, recdir, size);
+	if (len <= 0)
+		return -EINVAL;
+
+	status = nfs4_reset_recoverydir(recdir);
+	return strlen(buf);
+}
+
 /*----------------------------------------------------------------------------*/
 /*
  *	populating the filesystem.
@@ -369,6 +391,7 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
 		[NFSD_Threads] = {"threads", &transaction_ops, S_IWUSR|S_IRUSR},
 #ifdef CONFIG_NFSD_V4
 		[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
+		[NFSD_RecoveryDir] = {"nfsv4recoverydir", &transaction_ops, S_IWUSR|S_IRUSR},
 #endif
 		/* last one */ {""}
 	};
@@ -397,9 +420,8 @@ static int __init init_nfsd(void)
 	nfsd_cache_init();	/* RPC reply cache */
 	nfsd_export_init();	/* Exports table */
 	nfsd_lockd_init();	/* lockd->nfsd callbacks */
-#ifdef CONFIG_NFSD_V4
+	nfs4_state_init();	/* NFSv4 locking state */
 	nfsd_idmap_init();      /* Name to ID mapping */
-#endif /* CONFIG_NFSD_V4 */
 	if (proc_mkdir("fs/nfs", NULL)) {
 		struct proc_dir_entry *entry;
 		entry = create_proc_entry("fs/nfs/exports", 0, NULL);
@@ -426,9 +448,7 @@ static void __exit exit_nfsd(void)
 	remove_proc_entry("fs/nfs", NULL);
 	nfsd_stat_shutdown();
 	nfsd_lockd_shutdown();
-#ifdef CONFIG_NFSD_V4
 	nfsd_idmap_shutdown();
-#endif /* CONFIG_NFSD_V4 */
 	unregister_filesystem(&nfsd_fs_type);
 }
 
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 904df60..07b9a06 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -95,7 +95,7 @@ nfsd_svc(unsigned short port, int nrservs)
 	error =	nfsd_racache_init(2*nrservs);
 	if (error<0)
 		goto out;
-	error = nfs4_state_init();
+	error = nfs4_state_start();
 	if (error<0)
 		goto out;
 	if (!nfsd_serv) {
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index ae3940d..de340ff 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -50,7 +50,6 @@
 #include <linux/posix_acl.h>
 #ifdef CONFIG_NFSD_V4
 #include <linux/posix_acl_xattr.h>
-#include <linux/xattr_acl.h>
 #include <linux/xattr.h>
 #include <linux/nfs4.h>
 #include <linux/nfs4_acl.h>
@@ -425,13 +424,13 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
 		goto out_nfserr;
 
 	if (pacl) {
-		error = set_nfsv4_acl_one(dentry, pacl, XATTR_NAME_ACL_ACCESS);
+		error = set_nfsv4_acl_one(dentry, pacl, POSIX_ACL_XATTR_ACCESS);
 		if (error < 0)
 			goto out_nfserr;
 	}
 
 	if (dpacl) {
-		error = set_nfsv4_acl_one(dentry, dpacl, XATTR_NAME_ACL_DEFAULT);
+		error = set_nfsv4_acl_one(dentry, dpacl, POSIX_ACL_XATTR_DEFAULT);
 		if (error < 0)
 			goto out_nfserr;
 	}
@@ -498,7 +497,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
 	struct posix_acl *pacl = NULL, *dpacl = NULL;
 	unsigned int flags = 0;
 
-	pacl = _get_posix_acl(dentry, XATTR_NAME_ACL_ACCESS);
+	pacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_ACCESS);
 	if (IS_ERR(pacl) && PTR_ERR(pacl) == -ENODATA)
 		pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
 	if (IS_ERR(pacl)) {
@@ -508,7 +507,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
 	}
 
 	if (S_ISDIR(inode->i_mode)) {
-		dpacl = _get_posix_acl(dentry, XATTR_NAME_ACL_DEFAULT);
+		dpacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_DEFAULT);
 		if (IS_ERR(dpacl) && PTR_ERR(dpacl) == -ENODATA)
 			dpacl = NULL;
 		else if (IS_ERR(dpacl)) {
diff --git a/fs/open.c b/fs/open.c
index 963bd81..3f4a428 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -21,6 +21,7 @@
 #include <linux/vfs.h>
 #include <asm/uaccess.h>
 #include <linux/fs.h>
+#include <linux/personality.h>
 #include <linux/pagemap.h>
 #include <linux/syscalls.h>
 
@@ -807,7 +808,9 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
 
 	/* NB: we're sure to have correct a_ops only after f_op->open */
 	if (f->f_flags & O_DIRECT) {
-		if (!f->f_mapping->a_ops || !f->f_mapping->a_ops->direct_IO) {
+		if (!f->f_mapping->a_ops ||
+		    ((!f->f_mapping->a_ops->direct_IO) &&
+		    (!f->f_mapping->a_ops->get_xip_page))) {
 			fput(f);
 			f = ERR_PTR(-EINVAL);
 		}
@@ -933,31 +936,27 @@ EXPORT_SYMBOL(fd_install);
 asmlinkage long sys_open(const char __user * filename, int flags, int mode)
 {
 	char * tmp;
-	int fd, error;
+	int fd;
+
+	if (force_o_largefile())
+		flags |= O_LARGEFILE;
 
-#if BITS_PER_LONG != 32
-	flags |= O_LARGEFILE;
-#endif
 	tmp = getname(filename);
 	fd = PTR_ERR(tmp);
 	if (!IS_ERR(tmp)) {
 		fd = get_unused_fd();
 		if (fd >= 0) {
 			struct file *f = filp_open(tmp, flags, mode);
-			error = PTR_ERR(f);
-			if (IS_ERR(f))
-				goto out_error;
-			fd_install(fd, f);
+			if (IS_ERR(f)) {
+				put_unused_fd(fd);
+				fd = PTR_ERR(f);
+			} else {
+				fd_install(fd, f);
+			}
 		}
-out:
 		putname(tmp);
 	}
 	return fd;
-
-out_error:
-	put_unused_fd(fd);
-	fd = error;
-	goto out;
 }
 EXPORT_SYMBOL_GPL(sys_open);
 
@@ -980,23 +979,15 @@ asmlinkage long sys_creat(const char __user * pathname, int mode)
  */
 int filp_close(struct file *filp, fl_owner_t id)
 {
-	int retval;
-
-	/* Report and clear outstanding errors */
-	retval = filp->f_error;
-	if (retval)
-		filp->f_error = 0;
+	int retval = 0;
 
 	if (!file_count(filp)) {
 		printk(KERN_ERR "VFS: Close: file count is 0\n");
-		return retval;
+		return 0;
 	}
 
-	if (filp->f_op && filp->f_op->flush) {
-		int err = filp->f_op->flush(filp);
-		if (!retval)
-			retval = err;
-	}
+	if (filp->f_op && filp->f_op->flush)
+		retval = filp->f_op->flush(filp);
 
 	dnotify_flush(filp, id);
 	locks_remove_posix(filp, id);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e31903a..ace151f 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -314,7 +314,7 @@ static int may_ptrace_attach(struct task_struct *task)
 	     (current->gid != task->gid)) && !capable(CAP_SYS_PTRACE))
 		goto out;
 	rmb();
-	if (!task->mm->dumpable && !capable(CAP_SYS_PTRACE))
+	if (task->mm->dumpable != 1 && !capable(CAP_SYS_PTRACE))
 		goto out;
 	if (security_ptrace(current, task))
 		goto out;
@@ -1113,7 +1113,9 @@ static int task_dumpable(struct task_struct *task)
 	if (mm)
 		dumpable = mm->dumpable;
 	task_unlock(task);
-	return dumpable;
+	if(dumpable == 1)
+		return 1;
+	return 0;
 }
 
 
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 63a9fbf..94b570a 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -451,7 +451,7 @@ static int devices_read_proc(char *page, char **start, off_t off,
 				 int count, int *eof, void *data)
 {
 	int len = get_chrdev_list(page);
-	len += get_blkdev_list(page+len);
+	len += get_blkdev_list(page+len, len);
 	return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index cd66147..7a8f559 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -61,7 +61,7 @@ static int qnx4_readdir(struct file *filp, void *dirent, filldir_t filldir)
 						ino = blknum * QNX4_INODES_PER_BLOCK + ix - 1;
 					else {
 						le  = (struct qnx4_link_info*)de;
-						ino = ( le->dl_inode_blk - 1 ) *
+						ino = ( le32_to_cpu(le->dl_inode_blk) - 1 ) *
 							QNX4_INODES_PER_BLOCK +
 							le->dl_inode_ndx;
 					}
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c
index aa92d6b..b79162a 100644
--- a/fs/qnx4/inode.c
+++ b/fs/qnx4/inode.c
@@ -236,7 +236,7 @@ unsigned long qnx4_block_map( struct inode *inode, long iblock )
 	struct buffer_head *bh = NULL;
 	struct qnx4_xblk *xblk = NULL;
 	struct qnx4_inode_entry *qnx4_inode = qnx4_raw_inode(inode);
-	qnx4_nxtnt_t nxtnt = le16_to_cpu(qnx4_inode->di_num_xtnts);
+	u16 nxtnt = le16_to_cpu(qnx4_inode->di_num_xtnts);
 
 	if ( iblock < le32_to_cpu(qnx4_inode->di_first_xtnt.xtnt_size) ) {
 		// iblock is in the first extent. This is easy.
@@ -372,7 +372,7 @@ static int qnx4_fill_super(struct super_block *s, void *data, int silent)
 		printk("qnx4: unable to read the superblock\n");
 		goto outnobh;
 	}
-	if ( le32_to_cpu( *(__u32*)bh->b_data ) != QNX4_SUPER_MAGIC ) {
+	if ( le32_to_cpup((__le32*) bh->b_data) != QNX4_SUPER_MAGIC ) {
 		if (!silent)
 			printk("qnx4: wrong fsid in superblock.\n");
 		goto out;
diff --git a/fs/quota.c b/fs/quota.c
index 3f0333a..f5d1cff 100644
--- a/fs/quota.c
+++ b/fs/quota.c
@@ -149,36 +149,6 @@ static int check_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t
 	return error;
 }
 
-static struct super_block *get_super_to_sync(int type)
-{
-	struct list_head *head;
-	int cnt, dirty;
-
-restart:
-	spin_lock(&sb_lock);
-	list_for_each(head, &super_blocks) {
-		struct super_block *sb = list_entry(head, struct super_block, s_list);
-
-		/* This test just improves performance so it needn't be reliable... */
-		for (cnt = 0, dirty = 0; cnt < MAXQUOTAS; cnt++)
-			if ((type == cnt || type == -1) && sb_has_quota_enabled(sb, cnt)
-			    && info_any_dirty(&sb_dqopt(sb)->info[cnt]))
-				dirty = 1;
-		if (!dirty)
-			continue;
-		sb->s_count++;
-		spin_unlock(&sb_lock);
-		down_read(&sb->s_umount);
-		if (!sb->s_root) {
-			drop_super(sb);
-			goto restart;
-		}
-		return sb;
-	}
-	spin_unlock(&sb_lock);
-	return NULL;
-}
-
 static void quota_sync_sb(struct super_block *sb, int type)
 {
 	int cnt;
@@ -219,17 +189,35 @@ static void quota_sync_sb(struct super_block *sb, int type)
 
 void sync_dquots(struct super_block *sb, int type)
 {
+	int cnt, dirty;
+
 	if (sb) {
 		if (sb->s_qcop->quota_sync)
 			quota_sync_sb(sb, type);
+		return;
 	}
-	else {
-		while ((sb = get_super_to_sync(type)) != NULL) {
-			if (sb->s_qcop->quota_sync)
-				quota_sync_sb(sb, type);
-			drop_super(sb);
-		}
+
+	spin_lock(&sb_lock);
+restart:
+	list_for_each_entry(sb, &super_blocks, s_list) {
+		/* This test just improves performance so it needn't be reliable... */
+		for (cnt = 0, dirty = 0; cnt < MAXQUOTAS; cnt++)
+			if ((type == cnt || type == -1) && sb_has_quota_enabled(sb, cnt)
+			    && info_any_dirty(&sb_dqopt(sb)->info[cnt]))
+				dirty = 1;
+		if (!dirty)
+			continue;
+		sb->s_count++;
+		spin_unlock(&sb_lock);
+		down_read(&sb->s_umount);
+		if (sb->s_root && sb->s_qcop->quota_sync)
+			quota_sync_sb(sb, type);
+		up_read(&sb->s_umount);
+		spin_lock(&sb_lock);
+		if (__put_super_and_need_restart(sb))
+			goto restart;
 	}
+	spin_unlock(&sb_lock);
 }
 
 /* Copy parameters and call proper function */
diff --git a/fs/read_write.c b/fs/read_write.c
index c4c2bee..9292f5f 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -203,6 +203,16 @@ Einval:
 	return -EINVAL;
 }
 
+static void wait_on_retry_sync_kiocb(struct kiocb *iocb)
+{
+	set_current_state(TASK_UNINTERRUPTIBLE);
+	if (!kiocbIsKicked(iocb))
+		schedule();
+	else
+		kiocbClearKicked(iocb);
+	__set_current_state(TASK_RUNNING);
+}
+
 ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)
 {
 	struct kiocb kiocb;
@@ -210,7 +220,10 @@ ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *pp
 
 	init_sync_kiocb(&kiocb, filp);
 	kiocb.ki_pos = *ppos;
-	ret = filp->f_op->aio_read(&kiocb, buf, len, kiocb.ki_pos);
+	while (-EIOCBRETRY ==
+		(ret = filp->f_op->aio_read(&kiocb, buf, len, kiocb.ki_pos)))
+		wait_on_retry_sync_kiocb(&kiocb);
+
 	if (-EIOCBQUEUED == ret)
 		ret = wait_on_sync_kiocb(&kiocb);
 	*ppos = kiocb.ki_pos;
@@ -258,7 +271,10 @@ ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, lof
 
 	init_sync_kiocb(&kiocb, filp);
 	kiocb.ki_pos = *ppos;
-	ret = filp->f_op->aio_write(&kiocb, buf, len, kiocb.ki_pos);
+	while (-EIOCBRETRY ==
+	       (ret = filp->f_op->aio_write(&kiocb, buf, len, kiocb.ki_pos)))
+		wait_on_retry_sync_kiocb(&kiocb);
+
 	if (-EIOCBQUEUED == ret)
 		ret = wait_on_sync_kiocb(&kiocb);
 	*ppos = kiocb.ki_pos;
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 2230aff..12e9120 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -201,7 +201,7 @@ static int reiserfs_allocate_blocks_for_region(
     /* If we came here, it means we absolutely need to open a transaction,
        since we need to allocate some blocks */
     reiserfs_write_lock(inode->i_sb); // Journaling stuff and we need that.
-    res = journal_begin(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS); // Wish I know if this number enough
+    res = journal_begin(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb)); // Wish I know if this number enough
     if (res)
         goto error_exit;
     reiserfs_update_inode_transaction(inode) ;
@@ -576,7 +576,7 @@ error_exit:
         int err;
         // update any changes we made to blk count
         reiserfs_update_sd(th, inode);
-        err = journal_end(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS);
+        err = journal_end(th, inode->i_sb, JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb));
         if (err)
             res = err;
     }
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 2711dff..0d5817f 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -28,7 +28,7 @@ static int reiserfs_prepare_write(struct file *f, struct page *page,
 void reiserfs_delete_inode (struct inode * inode)
 {
     /* We need blocks for transaction + (user+group) quota update (possibly delete) */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb);
     struct reiserfs_transaction_handle th ;
   
     reiserfs_write_lock(inode->i_sb);
@@ -591,7 +591,7 @@ int reiserfs_get_block (struct inode * inode, sector_t block,
        XXX in practically impossible worst case direct2indirect()
        can incur (much) more than 3 balancings.
        quota update for user, group */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 1 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(inode->i_sb);
     int version;
     int dangle = 1;
     loff_t new_offset = (((loff_t)block) << inode->i_sb->s_blocksize_bits) + 1 ;
@@ -2796,12 +2796,15 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
 
                 if (!error) {
 		    struct reiserfs_transaction_handle th;
+		    int jbegin_count = 2*(REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb)+REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb))+2;
 
 		    /* (user+group)*(old+new) structure - we count quota info and , inode write (sb, inode) */
-		    journal_begin(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+		    error = journal_begin(&th, inode->i_sb, jbegin_count);
+ 		    if (error)
+ 			goto out;
                     error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
 		    if (error) {
-			journal_end(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+			journal_end(&th, inode->i_sb, jbegin_count);
 			goto out;
 		    }
 		    /* Update corresponding info in inode so that everything is in
@@ -2811,7 +2814,7 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
 		    if (attr->ia_valid & ATTR_GID)
 			inode->i_gid = attr->ia_gid;
 		    mark_inode_dirty(inode);
-		    journal_end(&th, inode->i_sb, 4*REISERFS_QUOTA_INIT_BLOCKS+2);
+		    error = journal_end(&th, inode->i_sb, jbegin_count);
 		}
         }
         if (!error)
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 3072cfd..7b87707 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2631,6 +2631,8 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th, struct sup
   int retval;
 
   reiserfs_check_lock_depth(p_s_sb, "journal_begin") ;
+  if (nblocks > journal->j_trans_max)
+	BUG();
 
   PROC_INFO_INC( p_s_sb, journal.journal_being );
   /* set here for journal_join */
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 7d4dc5f..4a33325 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -586,7 +586,7 @@ static int reiserfs_create (struct inode * dir, struct dentry *dentry, int mode,
     int retval;
     struct inode * inode;
     /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
     struct reiserfs_transaction_handle th ;
     int locked;
 
@@ -653,7 +653,7 @@ static int reiserfs_mknod (struct inode * dir, struct dentry *dentry, int mode,
     struct inode * inode;
     struct reiserfs_transaction_handle th ;
     /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
     int locked;
 
     if (!new_valid_dev(rdev))
@@ -727,7 +727,7 @@ static int reiserfs_mkdir (struct inode * dir, struct dentry *dentry, int mode)
     struct inode * inode;
     struct reiserfs_transaction_handle th ;
     /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb));
     int locked;
 
 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
@@ -829,8 +829,10 @@ static int reiserfs_rmdir (struct inode * dir, struct dentry *dentry)
 
 
     /* we will be doing 2 balancings and update 2 stat data, we change quotas
-     * of the owner of the directory and of the owner of the parent directory */
-    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+     * of the owner of the directory and of the owner of the parent directory.
+     * The quota structure is possibly deleted only on last iput => outside
+     * of this transaction */
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
 
     reiserfs_write_lock(dir->i_sb);
     retval = journal_begin(&th, dir->i_sb, jbegin_count) ;
@@ -913,9 +915,10 @@ static int reiserfs_unlink (struct inode * dir, struct dentry *dentry)
     inode = dentry->d_inode;
 
     /* in this transaction we can be doing at max two balancings and update
-       two stat datas, we change quotas of the owner of the directory and of
-       the owner of the parent directory */
-    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+     * two stat datas, we change quotas of the owner of the directory and of
+     * the owner of the parent directory. The quota structure is possibly
+     * deleted only on iput => outside of this transaction */
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 2 + 2 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
 
     reiserfs_write_lock(dir->i_sb);
     retval = journal_begin(&th, dir->i_sb, jbegin_count) ;
@@ -1000,7 +1003,7 @@ static int reiserfs_symlink (struct inode * parent_dir,
     struct reiserfs_transaction_handle th ;
     int mode = S_IFLNK | S_IRWXUGO;
     /* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS+REISERFS_QUOTA_TRANS_BLOCKS);
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * (REISERFS_QUOTA_INIT_BLOCKS(parent_dir->i_sb)+REISERFS_QUOTA_TRANS_BLOCKS(parent_dir->i_sb));
 
     if (!(inode = new_inode(parent_dir->i_sb))) {
 	return -ENOMEM ;
@@ -1076,7 +1079,7 @@ static int reiserfs_link (struct dentry * old_dentry, struct inode * dir, struct
     struct inode *inode = old_dentry->d_inode;
     struct reiserfs_transaction_handle th ;
     /* We need blocks for transaction + update of quotas for the owners of the directory */
-    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * REISERFS_QUOTA_TRANS_BLOCKS;
+    int jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 2 * REISERFS_QUOTA_TRANS_BLOCKS(dir->i_sb);
 
     reiserfs_write_lock(dir->i_sb);
     if (inode->i_nlink >= REISERFS_LINK_MAX) {
@@ -1196,7 +1199,7 @@ static int reiserfs_rename (struct inode * old_dir, struct dentry *old_dentry,
        pointed initially and (5) maybe block containing ".." of
        renamed directory
        quota updates: two parent directories */
-    jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 5 + 4 * REISERFS_QUOTA_TRANS_BLOCKS;
+    jbegin_count = JOURNAL_PER_BALANCE_CNT * 3 + 5 + 4 * REISERFS_QUOTA_TRANS_BLOCKS(old_dir->i_sb);
 
     old_inode = old_dentry->d_inode;
     new_dentry_inode = new_dentry->d_inode;
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index c47f8fd..6315849 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -223,7 +223,7 @@ extern struct tree_balance * cur_tb;
 const struct reiserfs_key  MIN_KEY = {0, 0, {{0, 0},}};
 
 /* Maximal possible key. It is never in the tree. */
-const struct reiserfs_key  MAX_KEY = {
+static const struct reiserfs_key  MAX_KEY = {
 	__constant_cpu_to_le32(0xffffffff),
 	__constant_cpu_to_le32(0xffffffff),
 	{{__constant_cpu_to_le32(0xffffffff),
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index b35b877..660aefc 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -866,8 +866,9 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
 	{"jdev",	.arg_required = 'j', .values = NULL},
 	{"nolargeio",	.arg_required = 'w', .values = NULL},
 	{"commit",	.arg_required = 'c', .values = NULL},
-	{"usrquota",},
-	{"grpquota",},
+	{"usrquota",	.setmask = 1<<REISERFS_QUOTA},
+	{"grpquota",	.setmask = 1<<REISERFS_QUOTA},
+	{"noquota",	.clrmask = 1<<REISERFS_QUOTA},
 	{"errors", 	.arg_required = 'e', .values = error_actions},
 	{"usrjquota",	.arg_required = 'u'|(1<<REISERFS_OPT_ALLOWEMPTY), .values = NULL},
 	{"grpjquota",	.arg_required = 'g'|(1<<REISERFS_OPT_ALLOWEMPTY), .values = NULL},
@@ -964,6 +965,7 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
 		    return 0;
 		}
 		strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
+		*mount_options |= 1<<REISERFS_QUOTA;
 	    }
 	    else {
 		if (REISERFS_SB(s)->s_qf_names[qtype]) {
@@ -995,7 +997,13 @@ static int reiserfs_parse_options (struct super_block * s, char * options, /* st
 	reiserfs_warning(s, "reiserfs_parse_options: journalled quota format not specified.");
 	return 0;
     }
+    /* This checking is not precise wrt the quota type but for our purposes it is sufficient */
+    if (!(*mount_options & (1<<REISERFS_QUOTA)) && sb_any_quota_enabled(s)) {
+	reiserfs_warning(s, "reiserfs_parse_options: quota options must be present when quota is turned on.");
+	return 0;
+    }
 #endif
+
     return 1;
 }
 
@@ -1105,6 +1113,7 @@ static int reiserfs_remount (struct super_block * s, int * mount_flags, char * a
   safe_mask |= 1 << REISERFS_ERROR_RO;
   safe_mask |= 1 << REISERFS_ERROR_CONTINUE;
   safe_mask |= 1 << REISERFS_ERROR_PANIC;
+  safe_mask |= 1 << REISERFS_QUOTA;
 
   /* Update the bitmask, taking care to keep
    * the bits we're not allowed to change here */
@@ -1841,13 +1850,18 @@ static int reiserfs_statfs (struct super_block * s, struct kstatfs * buf)
 static int reiserfs_dquot_initialize(struct inode *inode, int type)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     /* We may create quota structure so we need to reserve enough blocks */
     reiserfs_write_lock(inode->i_sb);
-    journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+    ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
+    if (ret)
+	goto out;
     ret = dquot_initialize(inode, type);
-    journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+    err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS(inode->i_sb));
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(inode->i_sb);
     return ret;
 }
@@ -1855,13 +1869,18 @@ static int reiserfs_dquot_initialize(struct inode *inode, int type)
 static int reiserfs_dquot_drop(struct inode *inode)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     /* We may delete quota structure so we need to reserve enough blocks */
     reiserfs_write_lock(inode->i_sb);
-    journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+    ret = journal_begin(&th, inode->i_sb, 2*REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
+    if (ret)
+ 	goto out;
     ret = dquot_drop(inode);
-    journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_INIT_BLOCKS);
+    err = journal_end(&th, inode->i_sb, 2*REISERFS_QUOTA_DEL_BLOCKS(inode->i_sb));
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(inode->i_sb);
     return ret;
 }
@@ -1869,12 +1888,17 @@ static int reiserfs_dquot_drop(struct inode *inode)
 static int reiserfs_write_dquot(struct dquot *dquot)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     reiserfs_write_lock(dquot->dq_sb);
-    journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS);
+    ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
+    if (ret)
+	goto out;
     ret = dquot_commit(dquot);
-    journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS);
+    err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(dquot->dq_sb);
     return ret;
 }
@@ -1882,12 +1906,17 @@ static int reiserfs_write_dquot(struct dquot *dquot)
 static int reiserfs_acquire_dquot(struct dquot *dquot)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     reiserfs_write_lock(dquot->dq_sb);
-    journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+    ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb));
+    if (ret)
+	goto out;
     ret = dquot_acquire(dquot);
-    journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+    err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS(dquot->dq_sb));
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(dquot->dq_sb);
     return ret;
 }
@@ -1895,12 +1924,17 @@ static int reiserfs_acquire_dquot(struct dquot *dquot)
 static int reiserfs_release_dquot(struct dquot *dquot)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     reiserfs_write_lock(dquot->dq_sb);
-    journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+    ret = journal_begin(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
+    if (ret)
+ 	goto out;
     ret = dquot_release(dquot);
-    journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_INIT_BLOCKS);
+    err = journal_end(&th, dquot->dq_sb, REISERFS_QUOTA_DEL_BLOCKS(dquot->dq_sb));
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(dquot->dq_sb);
     return ret;
 }
@@ -1920,39 +1954,29 @@ static int reiserfs_mark_dquot_dirty(struct dquot *dquot)
 static int reiserfs_write_info(struct super_block *sb, int type)
 {
     struct reiserfs_transaction_handle th;
-    int ret;
+    int ret, err;
 
     /* Data block + inode block */
     reiserfs_write_lock(sb);
-    journal_begin(&th, sb, 2);
+    ret = journal_begin(&th, sb, 2);
+    if (ret)
+	goto out;
     ret = dquot_commit_info(sb, type);
-    journal_end(&th, sb, 2);
+    err = journal_end(&th, sb, 2);
+    if (!ret && err)
+	ret = err;
+out:
     reiserfs_write_unlock(sb);
     return ret;
 }
 
 /*
- * Turn on quotas during mount time - we need to find
- * the quota file and such...
+ * Turn on quotas during mount time - we need to find the quota file and such...
  */
 static int reiserfs_quota_on_mount(struct super_block *sb, int type)
 {
-    int err;
-    struct dentry *dentry;
-    struct qstr name = { .name = REISERFS_SB(sb)->s_qf_names[type],
-                         .hash = 0,
-                         .len = strlen(REISERFS_SB(sb)->s_qf_names[type])};
-
-    dentry = lookup_hash(&name, sb->s_root);
-    if (IS_ERR(dentry))
-            return PTR_ERR(dentry);
-    err = vfs_quota_on_mount(type, REISERFS_SB(sb)->s_jquota_fmt, dentry);
-    /* Now invalidate and put the dentry - quota got its own reference
-     * to inode and dentry has at least wrong hash so we had better
-     * throw it away */
-    d_invalidate(dentry);
-    dput(dentry);
-    return err;
+	return vfs_quota_on_mount(sb, REISERFS_SB(sb)->s_qf_names[type],
+			REISERFS_SB(sb)->s_jquota_fmt, type);
 }
 
 /*
@@ -1963,6 +1987,8 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id, ch
     int err;
     struct nameidata nd;
 
+    if (!(REISERFS_SB(sb)->s_mount_opt & (1<<REISERFS_QUOTA)))
+	return -EINVAL;
     err = path_lookup(path, LOOKUP_FOLLOW, &nd);
     if (err)
         return err;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index e302071..c312881 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -4,7 +4,7 @@
 #include <linux/errno.h>
 #include <linux/pagemap.h>
 #include <linux/xattr.h>
-#include <linux/xattr_acl.h>
+#include <linux/posix_acl_xattr.h>
 #include <linux/reiserfs_xattr.h>
 #include <linux/reiserfs_acl.h>
 #include <asm/uaccess.h>
@@ -192,11 +192,11 @@ reiserfs_get_acl(struct inode *inode, int type)
 
         switch (type) {
             case ACL_TYPE_ACCESS:
-                name = XATTR_NAME_ACL_ACCESS;
+                name = POSIX_ACL_XATTR_ACCESS;
                 p_acl = &reiserfs_i->i_acl_access;
                 break;
             case ACL_TYPE_DEFAULT:
-                name = XATTR_NAME_ACL_DEFAULT;
+                name = POSIX_ACL_XATTR_DEFAULT;
                 p_acl = &reiserfs_i->i_acl_default;
                 break;
             default:
@@ -260,7 +260,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 
         switch (type) {
             case ACL_TYPE_ACCESS:
-                name = XATTR_NAME_ACL_ACCESS;
+                name = POSIX_ACL_XATTR_ACCESS;
                 p_acl = &reiserfs_i->i_acl_access;
                 if (acl) {
                     mode_t mode = inode->i_mode;
@@ -275,7 +275,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
                 }
                 break;
             case ACL_TYPE_DEFAULT:
-                name = XATTR_NAME_ACL_DEFAULT;
+                name = POSIX_ACL_XATTR_DEFAULT;
                 p_acl = &reiserfs_i->i_acl_default;
                 if (!S_ISDIR (inode->i_mode))
                     return acl ? -EACCES : 0;
@@ -468,7 +468,7 @@ static int
 posix_acl_access_get(struct inode *inode, const char *name,
 			  void *buffer, size_t size)
 {
-	if (strlen(name) != sizeof(XATTR_NAME_ACL_ACCESS)-1)
+	if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1)
 		return -EINVAL;
 	return xattr_get_acl(inode, ACL_TYPE_ACCESS, buffer, size);
 }
@@ -477,7 +477,7 @@ static int
 posix_acl_access_set(struct inode *inode, const char *name,
 			  const void *value, size_t size, int flags)
 {
-	if (strlen(name) != sizeof(XATTR_NAME_ACL_ACCESS)-1)
+	if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1)
 		return -EINVAL;
 	return xattr_set_acl(inode, ACL_TYPE_ACCESS, value, size);
 }
@@ -487,7 +487,7 @@ posix_acl_access_del (struct inode *inode, const char *name)
 {
     struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
     struct posix_acl **acl = &reiserfs_i->i_acl_access;
-    if (strlen(name) != sizeof(XATTR_NAME_ACL_ACCESS)-1)
+    if (strlen(name) != sizeof(POSIX_ACL_XATTR_ACCESS)-1)
 	return -EINVAL;
     if (!IS_ERR (*acl) && *acl) {
         posix_acl_release (*acl);
@@ -510,7 +510,7 @@ posix_acl_access_list (struct inode *inode, const char *name, int namelen, char
 }
 
 struct reiserfs_xattr_handler posix_acl_access_handler = {
-	.prefix = XATTR_NAME_ACL_ACCESS,
+	.prefix = POSIX_ACL_XATTR_ACCESS,
 	.get = posix_acl_access_get,
 	.set = posix_acl_access_set,
 	.del = posix_acl_access_del,
@@ -521,7 +521,7 @@ static int
 posix_acl_default_get (struct inode *inode, const char *name,
 			   void *buffer, size_t size)
 {
-	if (strlen(name) != sizeof(XATTR_NAME_ACL_DEFAULT)-1)
+	if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1)
 		return -EINVAL;
 	return xattr_get_acl(inode, ACL_TYPE_DEFAULT, buffer, size);
 }
@@ -530,7 +530,7 @@ static int
 posix_acl_default_set(struct inode *inode, const char *name,
 			   const void *value, size_t size, int flags)
 {
-	if (strlen(name) != sizeof(XATTR_NAME_ACL_DEFAULT)-1)
+	if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1)
 		return -EINVAL;
 	return xattr_set_acl(inode, ACL_TYPE_DEFAULT, value, size);
 }
@@ -540,7 +540,7 @@ posix_acl_default_del (struct inode *inode, const char *name)
 {
     struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
     struct posix_acl **acl = &reiserfs_i->i_acl_default;
-    if (strlen(name) != sizeof(XATTR_NAME_ACL_DEFAULT)-1)
+    if (strlen(name) != sizeof(POSIX_ACL_XATTR_DEFAULT)-1)
 	return -EINVAL;
     if (!IS_ERR (*acl) && *acl) {
         posix_acl_release (*acl);
@@ -563,7 +563,7 @@ posix_acl_default_list (struct inode *inode, const char *name, int namelen, char
 }
 
 struct reiserfs_xattr_handler posix_acl_default_handler = {
-	.prefix = XATTR_NAME_ACL_DEFAULT,
+	.prefix = POSIX_ACL_XATTR_DEFAULT,
 	.get = posix_acl_default_get,
 	.set = posix_acl_default_set,
 	.del = posix_acl_default_del,
diff --git a/fs/super.c b/fs/super.c
index 573bcc8..25bc1ec 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -341,20 +341,22 @@ static inline void write_super(struct super_block *sb)
  */
 void sync_supers(void)
 {
-	struct super_block * sb;
-restart:
+	struct super_block *sb;
+
 	spin_lock(&sb_lock);
-	sb = sb_entry(super_blocks.next);
-	while (sb != sb_entry(&super_blocks))
+restart:
+	list_for_each_entry(sb, &super_blocks, s_list) {
 		if (sb->s_dirt) {
 			sb->s_count++;
 			spin_unlock(&sb_lock);
 			down_read(&sb->s_umount);
 			write_super(sb);
-			drop_super(sb);
-			goto restart;
-		} else
-			sb = sb_entry(sb->s_list.next);
+			up_read(&sb->s_umount);
+			spin_lock(&sb_lock);
+			if (__put_super_and_need_restart(sb))
+				goto restart;
+		}
+	}
 	spin_unlock(&sb_lock);
 }
 
@@ -381,20 +383,16 @@ void sync_filesystems(int wait)
 
 	down(&mutex);		/* Could be down_interruptible */
 	spin_lock(&sb_lock);
-	for (sb = sb_entry(super_blocks.next); sb != sb_entry(&super_blocks);
-			sb = sb_entry(sb->s_list.next)) {
+	list_for_each_entry(sb, &super_blocks, s_list) {
 		if (!sb->s_op->sync_fs)
 			continue;
 		if (sb->s_flags & MS_RDONLY)
 			continue;
 		sb->s_need_sync_fs = 1;
 	}
-	spin_unlock(&sb_lock);
 
 restart:
-	spin_lock(&sb_lock);
-	for (sb = sb_entry(super_blocks.next); sb != sb_entry(&super_blocks);
-			sb = sb_entry(sb->s_list.next)) {
+	list_for_each_entry(sb, &super_blocks, s_list) {
 		if (!sb->s_need_sync_fs)
 			continue;
 		sb->s_need_sync_fs = 0;
@@ -405,8 +403,11 @@ restart:
 		down_read(&sb->s_umount);
 		if (sb->s_root && (wait || sb->s_dirt))
 			sb->s_op->sync_fs(sb, wait);
-		drop_super(sb);
-		goto restart;
+		up_read(&sb->s_umount);
+		/* restart only when sb is no longer on the list */
+		spin_lock(&sb_lock);
+		if (__put_super_and_need_restart(sb))
+			goto restart;
 	}
 	spin_unlock(&sb_lock);
 	up(&mutex);
@@ -422,21 +423,25 @@ restart:
 
 struct super_block * get_super(struct block_device *bdev)
 {
-	struct list_head *p;
+	struct super_block *sb;
+
 	if (!bdev)
 		return NULL;
-rescan:
+
 	spin_lock(&sb_lock);
-	list_for_each(p, &super_blocks) {
-		struct super_block *s = sb_entry(p);
-		if (s->s_bdev == bdev) {
-			s->s_count++;
+rescan:
+	list_for_each_entry(sb, &super_blocks, s_list) {
+		if (sb->s_bdev == bdev) {
+			sb->s_count++;
 			spin_unlock(&sb_lock);
-			down_read(&s->s_umount);
-			if (s->s_root)
-				return s;
-			drop_super(s);
-			goto rescan;
+			down_read(&sb->s_umount);
+			if (sb->s_root)
+				return sb;
+			up_read(&sb->s_umount);
+			/* restart only when sb is no longer on the list */
+			spin_lock(&sb_lock);
+			if (__put_super_and_need_restart(sb))
+				goto rescan;
 		}
 	}
 	spin_unlock(&sb_lock);
@@ -447,20 +452,22 @@ EXPORT_SYMBOL(get_super);
  
 struct super_block * user_get_super(dev_t dev)
 {
-	struct list_head *p;
+	struct super_block *sb;
 
-rescan:
 	spin_lock(&sb_lock);
-	list_for_each(p, &super_blocks) {
-		struct super_block *s = sb_entry(p);
-		if (s->s_dev ==  dev) {
-			s->s_count++;
+rescan:
+	list_for_each_entry(sb, &super_blocks, s_list) {
+		if (sb->s_dev ==  dev) {
+			sb->s_count++;
 			spin_unlock(&sb_lock);
-			down_read(&s->s_umount);
-			if (s->s_root)
-				return s;
-			drop_super(s);
-			goto rescan;
+			down_read(&sb->s_umount);
+			if (sb->s_root)
+				return sb;
+			up_read(&sb->s_umount);
+			/* restart only when sb is no longer on the list */
+			spin_lock(&sb_lock);
+			if (__put_super_and_need_restart(sb))
+				goto rescan;
 		}
 	}
 	spin_unlock(&sb_lock);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 37d7a68..59734ba 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -8,6 +8,7 @@
 #include <linux/mount.h>
 #include <linux/module.h>
 #include <linux/kobject.h>
+#include <linux/namei.h>
 #include "sysfs.h"
 
 DECLARE_RWSEM(sysfs_rename_sem);
@@ -99,7 +100,7 @@ static int create_dir(struct kobject * k, struct dentry * p,
 	umode_t mode = S_IFDIR| S_IRWXU | S_IRUGO | S_IXUGO;
 
 	down(&p->d_inode->i_sem);
-	*d = sysfs_get_dentry(p,n);
+	*d = lookup_one_len(n, p, strlen(n));
 	if (!IS_ERR(*d)) {
 		error = sysfs_make_dirent(p->d_fsdata, *d, k, mode, SYSFS_DIR);
 		if (!error) {
@@ -315,7 +316,7 @@ int sysfs_rename_dir(struct kobject * kobj, const char *new_name)
 
 	down(&parent->d_inode->i_sem);
 
-	new_dentry = sysfs_get_dentry(parent, new_name);
+	new_dentry = lookup_one_len(new_name, parent, strlen(new_name));
 	if (!IS_ERR(new_dentry)) {
   		if (!new_dentry->d_inode) {
 			error = kobject_set_name(kobj, "%s", new_name);
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 849aac1..d72c1ce 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/dnotify.h>
 #include <linux/kobject.h>
+#include <linux/namei.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 
@@ -13,7 +14,7 @@
 #define to_subsys(k) container_of(k,struct subsystem,kset.kobj)
 #define to_sattr(a) container_of(a,struct subsys_attribute,attr)
 
-/**
+/*
  * Subsystem file operations.
  * These operations allow subsystems to have files that can be 
  * read/written. 
@@ -191,8 +192,9 @@ fill_write_buffer(struct sysfs_buffer * buffer, const char __user * buf, size_t
 
 /**
  *	flush_write_buffer - push buffer to kobject.
- *	@file:		file pointer.
+ *	@dentry:	dentry to the attribute
  *	@buffer:	data buffer for file.
+ *	@count:		number of bytes
  *
  *	Get the correct pointers for the kobject and the attribute we're
  *	dealing with, then call the store() method for the attribute, 
@@ -400,7 +402,7 @@ int sysfs_update_file(struct kobject * kobj, const struct attribute * attr)
 	int res = -ENOENT;
 
 	down(&dir->d_inode->i_sem);
-	victim = sysfs_get_dentry(dir, attr->name);
+	victim = lookup_one_len(attr->name, dir, strlen(attr->name));
 	if (!IS_ERR(victim)) {
 		/* make sure dentry is really there */
 		if (victim->d_inode && 
@@ -443,7 +445,7 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode)
 	int res = -ENOENT;
 
 	down(&dir->d_inode->i_sem);
-	victim = sysfs_get_dentry(dir, attr->name);
+	victim = lookup_one_len(attr->name, dir, strlen(attr->name));
 	if (!IS_ERR(victim)) {
 		if (victim->d_inode &&
 		    (victim->d_parent->d_inode == dir->d_inode)) {
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index f11ac5e..122145b 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -11,6 +11,7 @@
 #include <linux/kobject.h>
 #include <linux/module.h>
 #include <linux/dcache.h>
+#include <linux/namei.h>
 #include <linux/err.h>
 #include "sysfs.h"
 
@@ -68,7 +69,8 @@ void sysfs_remove_group(struct kobject * kobj,
 	struct dentry * dir;
 
 	if (grp->name)
-		dir = sysfs_get_dentry(kobj->dentry,grp->name);
+		dir = lookup_one_len(grp->name, kobj->dentry,
+				strlen(grp->name));
 	else
 		dir = dget(kobj->dentry);
 
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 565cac1..8de13ba 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -166,16 +166,6 @@ int sysfs_create(struct dentry * dentry, int mode, int (*init)(struct inode *))
 	return error;
 }
 
-struct dentry * sysfs_get_dentry(struct dentry * parent, const char * name)
-{
-	struct qstr qstr;
-
-	qstr.name = name;
-	qstr.len = strlen(name);
-	qstr.hash = full_name_hash(name,qstr.len);
-	return lookup_hash(&qstr,parent);
-}
-
 /*
  * Get the name for corresponding element represented by the given sysfs_dirent
  */
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 29da6f5..3f8953e 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -7,7 +7,6 @@ extern int sysfs_create(struct dentry *, int mode, int (*init)(struct inode *));
 
 extern int sysfs_make_dirent(struct sysfs_dirent *, struct dentry *, void *,
 				umode_t, int);
-extern struct dentry * sysfs_get_dentry(struct dentry *, const char *);
 
 extern int sysfs_add_file(struct dentry *, const struct attribute *, int);
 extern void sysfs_hash_and_remove(struct dentry * dir, const char * name);
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 93ce257..a3a4b5a 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -149,11 +149,12 @@ linvfs_unwritten_convert(
  */
 STATIC void
 linvfs_unwritten_convert_direct(
-	struct inode	*inode,
+	struct kiocb	*iocb,
 	loff_t		offset,
 	ssize_t		size,
 	void		*private)
 {
+	struct inode	*inode = iocb->ki_filp->f_dentry->d_inode;
 	ASSERT(!private || inode == (struct inode *)private);
 
 	/* private indicates an unwritten extent lay beneath this IO */