Merge branch 'akpm' (incoming from Andrew)

Merge first patch-bomb from Andrew Morton:

 - a couple of misc things

 - inotify/fsnotify work from Jan

 - ocfs2 updates (partial)

 - about half of MM

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (117 commits)
  mm/migrate: remove unused function, fail_migrate_page()
  mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pages
  mm/migrate: correct failure handling if !hugepage_migration_support()
  mm/migrate: add comment about permanent failure path
  mm, page_alloc: warn for non-blockable __GFP_NOFAIL allocation failure
  mm: compaction: reset scanner positions immediately when they meet
  mm: compaction: do not mark unmovable pageblocks as skipped in async compaction
  mm: compaction: detect when scanners meet in isolate_freepages
  mm: compaction: reset cached scanner pfn's before reading them
  mm: compaction: encapsulate defer reset logic
  mm: compaction: trace compaction begin and end
  memcg, oom: lock mem_cgroup_print_oom_info
  sched: add tracepoints related to NUMA task migration
  mm: numa: do not automatically migrate KSM pages
  mm: numa: trace tasks that fail migration due to rate limiting
  mm: numa: limit scope of lock for NUMA migrate rate limiting
  mm: numa: make NUMA-migrate related functions static
  lib/show_mem.c: show num_poisoned_pages when oom
  mm/hwpoison: add '#' to hwpoison_inject
  mm/memblock: use WARN_ONCE when MAX_NUMNODES passed as input parameter
  ...

28 files changed, 341 insertions, 460 deletions

diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
index f17e58b32989..ce210d4951a1 100644
--- a/fs/ocfs2/Makefile
+++ b/fs/ocfs2/Makefile
@@ -38,7 +38,6 @@ ocfs2-objs := \
 	symlink.o 		\
 	sysfile.o 		\
 	uptodate.o		\
-	ver.o			\
 	quota_local.o		\
 	quota_global.o		\
 	xattr.o			\
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index dc7411fe185d..8750ae1b8636 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7260,14 +7260,8 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
 	start = range->start >> osb->s_clustersize_bits;
 	len = range->len >> osb->s_clustersize_bits;
 	minlen = range->minlen >> osb->s_clustersize_bits;
-	trimmed = 0;
-
-	if (!len) {
-		range->len = 0;
-		return 0;
-	}
 
-	if (minlen >= osb->bitmap_cpg)
+	if (minlen >= osb->bitmap_cpg || range->len < sb->s_blocksize)
 		return -EINVAL;
 
 	main_bm_inode = ocfs2_get_system_file_inode(osb,
@@ -7293,6 +7287,7 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
 		goto out_unlock;
 	}
 
+	len = range->len >> osb->s_clustersize_bits;
 	if (start + len > le32_to_cpu(main_bm->i_clusters))
 		len = le32_to_cpu(main_bm->i_clusters) - start;
 
@@ -7307,6 +7302,7 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
 	last_group = ocfs2_which_cluster_group(main_bm_inode, start + len - 1);
 	last_bit = osb->bitmap_cpg;
 
+	trimmed = 0;
 	for (group = first_group; group <= last_group;) {
 		if (first_bit + len >= osb->bitmap_cpg)
 			last_bit = osb->bitmap_cpg;
diff --git a/fs/ocfs2/cluster/Makefile b/fs/ocfs2/cluster/Makefile
index bc8c5e7d8608..1aefc0350ec3 100644
--- a/fs/ocfs2/cluster/Makefile
+++ b/fs/ocfs2/cluster/Makefile
@@ -1,4 +1,4 @@
 obj-$(CONFIG_OCFS2_FS) += ocfs2_nodemanager.o
 
 ocfs2_nodemanager-objs := heartbeat.o masklog.o sys.o nodemanager.o \
-	quorum.o tcp.o netdebug.o ver.o
+	quorum.o tcp.o netdebug.o
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index bb240647ca5f..441c84e169e6 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -29,7 +29,6 @@
 #include "heartbeat.h"
 #include "masklog.h"
 #include "sys.h"
-#include "ver.h"
 
 /* for now we operate under the assertion that there can be only one
  * cluster active at a time.  Changing this will require trickling
@@ -945,8 +944,6 @@ static int __init init_o2nm(void)
 {
 	int ret = -1;
 
-	cluster_print_version();
-
 	ret = o2hb_init();
 	if (ret)
 		goto out;
@@ -984,6 +981,7 @@ out:
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("OCFS2 cluster management");
 
 module_init(init_o2nm)
 module_exit(exit_o2nm)
diff --git a/fs/ocfs2/cluster/ver.c b/fs/ocfs2/cluster/ver.c
deleted file mode 100644
index a56eee6abad3..000000000000
--- a/fs/ocfs2/cluster/ver.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * ver.c
- *
- * version string
- *
- * Copyright (C) 2002, 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include "ver.h"
-
-#define CLUSTER_BUILD_VERSION "1.5.0"
-
-#define VERSION_STR "OCFS2 Node Manager " CLUSTER_BUILD_VERSION
-
-void cluster_print_version(void)
-{
-	printk(KERN_INFO "%s\n", VERSION_STR);
-}
-
-MODULE_DESCRIPTION(VERSION_STR);
-
-MODULE_VERSION(CLUSTER_BUILD_VERSION);
diff --git a/fs/ocfs2/cluster/ver.h b/fs/ocfs2/cluster/ver.h
deleted file mode 100644
index 32554c3382c2..000000000000
--- a/fs/ocfs2/cluster/ver.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * ver.h
- *
- * Function prototypes
- *
- * Copyright (C) 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef O2CLUSTER_VER_H
-#define O2CLUSTER_VER_H
-
-void cluster_print_version(void);
-
-#endif /* O2CLUSTER_VER_H */
diff --git a/fs/ocfs2/dlm/Makefile b/fs/ocfs2/dlm/Makefile
index c8a044efbb15..bd1aab1f49a4 100644
--- a/fs/ocfs2/dlm/Makefile
+++ b/fs/ocfs2/dlm/Makefile
@@ -3,5 +3,5 @@ ccflags-y := -Ifs/ocfs2
 obj-$(CONFIG_OCFS2_FS_O2CB) += ocfs2_dlm.o
 
 ocfs2_dlm-objs := dlmdomain.o dlmdebug.o dlmthread.o dlmrecovery.o \
-	dlmmaster.o dlmast.o dlmconvert.o dlmlock.o dlmunlock.o dlmver.o
+	dlmmaster.o dlmast.o dlmconvert.o dlmlock.o dlmunlock.o
 
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 8b3382abf840..33660a4a52fa 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -43,8 +43,6 @@
 #include "dlmdomain.h"
 #include "dlmdebug.h"
 
-#include "dlmver.h"
-
 #define MLOG_MASK_PREFIX (ML_DLM|ML_DLM_DOMAIN)
 #include "cluster/masklog.h"
 
@@ -2328,8 +2326,6 @@ static int __init dlm_init(void)
 {
 	int status;
 
-	dlm_print_version();
-
 	status = dlm_init_mle_cache();
 	if (status) {
 		mlog(ML_ERROR, "Could not create o2dlm_mle slabcache\n");
@@ -2379,6 +2375,7 @@ static void __exit dlm_exit (void)
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("OCFS2 Distributed Lock Management");
 
 module_init(dlm_init);
 module_exit(dlm_exit);
diff --git a/fs/ocfs2/dlm/dlmver.c b/fs/ocfs2/dlm/dlmver.c
deleted file mode 100644
index dfc0da4d158d..000000000000
--- a/fs/ocfs2/dlm/dlmver.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * dlmver.c
- *
- * version string
- *
- * Copyright (C) 2002, 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include "dlmver.h"
-
-#define DLM_BUILD_VERSION "1.5.0"
-
-#define VERSION_STR "OCFS2 DLM " DLM_BUILD_VERSION
-
-void dlm_print_version(void)
-{
-	printk(KERN_INFO "%s\n", VERSION_STR);
-}
-
-MODULE_DESCRIPTION(VERSION_STR);
-
-MODULE_VERSION(DLM_BUILD_VERSION);
diff --git a/fs/ocfs2/dlm/dlmver.h b/fs/ocfs2/dlm/dlmver.h
deleted file mode 100644
index f674aee77a16..000000000000
--- a/fs/ocfs2/dlm/dlmver.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * dlmfsver.h
- *
- * Function prototypes
- *
- * Copyright (C) 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef DLM_VER_H
-#define DLM_VER_H
-
-void dlm_print_version(void);
-
-#endif /* DLM_VER_H */
diff --git a/fs/ocfs2/dlmfs/Makefile b/fs/ocfs2/dlmfs/Makefile
index f14be89a6701..eed3db8c5b49 100644
--- a/fs/ocfs2/dlmfs/Makefile
+++ b/fs/ocfs2/dlmfs/Makefile
@@ -2,4 +2,4 @@ ccflags-y := -Ifs/ocfs2
 
 obj-$(CONFIG_OCFS2_FS) += ocfs2_dlmfs.o
 
-ocfs2_dlmfs-objs := userdlm.o dlmfs.o dlmfsver.o
+ocfs2_dlmfs-objs := userdlm.o dlmfs.o
diff --git a/fs/ocfs2/dlmfs/dlmfs.c b/fs/ocfs2/dlmfs/dlmfs.c
index efa2b3d339e3..09b7d9dac71d 100644
--- a/fs/ocfs2/dlmfs/dlmfs.c
+++ b/fs/ocfs2/dlmfs/dlmfs.c
@@ -49,7 +49,6 @@
 
 #include "stackglue.h"
 #include "userdlm.h"
-#include "dlmfsver.h"
 
 #define MLOG_MASK_PREFIX ML_DLMFS
 #include "cluster/masklog.h"
@@ -644,8 +643,6 @@ static int __init init_dlmfs_fs(void)
 	int status;
 	int cleanup_inode = 0, cleanup_worker = 0;
 
-	dlmfs_print_version();
-
 	status = bdi_init(&dlmfs_backing_dev_info);
 	if (status)
 		return status;
@@ -701,6 +698,7 @@ static void __exit exit_dlmfs_fs(void)
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("OCFS2 DLM-Filesystem");
 
 module_init(init_dlmfs_fs)
 module_exit(exit_dlmfs_fs)
diff --git a/fs/ocfs2/dlmfs/dlmfsver.c b/fs/ocfs2/dlmfs/dlmfsver.c
deleted file mode 100644
index a733b3321f83..000000000000
--- a/fs/ocfs2/dlmfs/dlmfsver.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * dlmfsver.c
- *
- * version string
- *
- * Copyright (C) 2002, 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-
-#include "dlmfsver.h"
-
-#define DLM_BUILD_VERSION "1.5.0"
-
-#define VERSION_STR "OCFS2 DLMFS " DLM_BUILD_VERSION
-
-void dlmfs_print_version(void)
-{
-	printk(KERN_INFO "%s\n", VERSION_STR);
-}
-
-MODULE_DESCRIPTION(VERSION_STR);
-
-MODULE_VERSION(DLM_BUILD_VERSION);
diff --git a/fs/ocfs2/dlmfs/dlmfsver.h b/fs/ocfs2/dlmfs/dlmfsver.h
deleted file mode 100644
index f35eadbed25c..000000000000
--- a/fs/ocfs2/dlmfs/dlmfsver.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * dlmver.h
- *
- * Function prototypes
- *
- * Copyright (C) 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef DLMFS_VER_H
-#define DLMFS_VER_H
-
-void dlmfs_print_version(void);
-
-#endif /* DLMFS_VER_H */
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 3407b2c62b21..19986959d149 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -2996,6 +2996,8 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
 
 	/* for now, uuid == domain */
 	status = ocfs2_cluster_connect(osb->osb_cluster_stack,
+				       osb->osb_cluster_name,
+				       strlen(osb->osb_cluster_name),
 				       osb->uuid_str,
 				       strlen(osb->uuid_str),
 				       &lproto, ocfs2_do_node_down, osb,
@@ -3005,7 +3007,7 @@ int ocfs2_dlm_init(struct ocfs2_super *osb)
 		goto bail;
 	}
 
-	status = ocfs2_cluster_this_node(&osb->node_num);
+	status = ocfs2_cluster_this_node(conn, &osb->node_num);
 	if (status < 0) {
 		mlog_errno(status);
 		mlog(ML_ERROR,
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 6fff128cad16..f42eecef6478 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1869,7 +1869,8 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode,
 	}
 	size = sr->l_start + sr->l_len;
 
-	if (cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64) {
+	if (cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64 ||
+	    cmd == OCFS2_IOC_UNRESVSP || cmd == OCFS2_IOC_UNRESVSP64) {
 		if (sr->l_len <= 0) {
 			ret = -EINVAL;
 			goto out_inode_unlock;
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index fa32ce9b455d..8ca3c29accbf 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -7,6 +7,7 @@
 
 #include <linux/fs.h>
 #include <linux/mount.h>
+#include <linux/blkdev.h>
 #include <linux/compat.h>
 
 #include <cluster/masklog.h>
@@ -966,15 +967,21 @@ long ocfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case FITRIM:
 	{
 		struct super_block *sb = inode->i_sb;
+		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 		struct fstrim_range range;
 		int ret = 0;
 
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 
+		if (!blk_queue_discard(q))
+			return -EOPNOTSUPP;
+
 		if (copy_from_user(&range, argp, sizeof(range)))
 			return -EFAULT;
 
+		range.minlen = max_t(u64, q->limits.discard_granularity,
+				     range.minlen);
 		ret = ocfs2_trim_fs(sb, &range);
 		if (ret < 0)
 			return ret;
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 631a98213474..64c304d668f0 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -561,83 +561,6 @@ static void ocfs2_probe_alloc_group(struct inode *inode, struct buffer_head *bh,
 	mlog(0, "found phys_cpos: %u to fit the wanted moving.\n", *phys_cpos);
 }
 
-static int ocfs2_alloc_dinode_update_counts(struct inode *inode,
-				       handle_t *handle,
-				       struct buffer_head *di_bh,
-				       u32 num_bits,
-				       u16 chain)
-{
-	int ret;
-	u32 tmp_used;
-	struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
-	struct ocfs2_chain_list *cl =
-				(struct ocfs2_chain_list *) &di->id2.i_chain;
-
-	ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh,
-				      OCFS2_JOURNAL_ACCESS_WRITE);
-	if (ret < 0) {
-		mlog_errno(ret);
-		goto out;
-	}
-
-	tmp_used = le32_to_cpu(di->id1.bitmap1.i_used);
-	di->id1.bitmap1.i_used = cpu_to_le32(num_bits + tmp_used);
-	le32_add_cpu(&cl->cl_recs[chain].c_free, -num_bits);
-	ocfs2_journal_dirty(handle, di_bh);
-
-out:
-	return ret;
-}
-
-static inline int ocfs2_block_group_set_bits(handle_t *handle,
-					     struct inode *alloc_inode,
-					     struct ocfs2_group_desc *bg,
-					     struct buffer_head *group_bh,
-					     unsigned int bit_off,
-					     unsigned int num_bits)
-{
-	int status;
-	void *bitmap = bg->bg_bitmap;
-	int journal_type = OCFS2_JOURNAL_ACCESS_WRITE;
-
-	/* All callers get the descriptor via
-	 * ocfs2_read_group_descriptor().  Any corruption is a code bug. */
-	BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
-	BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);
-
-	mlog(0, "block_group_set_bits: off = %u, num = %u\n", bit_off,
-	     num_bits);
-
-	if (ocfs2_is_cluster_bitmap(alloc_inode))
-		journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
-
-	status = ocfs2_journal_access_gd(handle,
-					 INODE_CACHE(alloc_inode),
-					 group_bh,
-					 journal_type);
-	if (status < 0) {
-		mlog_errno(status);
-		goto bail;
-	}
-
-	le16_add_cpu(&bg->bg_free_bits_count, -num_bits);
-	if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {
-		ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has bit"
-			    " count %u but claims %u are freed. num_bits %d",
-			    (unsigned long long)le64_to_cpu(bg->bg_blkno),
-			    le16_to_cpu(bg->bg_bits),
-			    le16_to_cpu(bg->bg_free_bits_count), num_bits);
-		return -EROFS;
-	}
-	while (num_bits--)
-		ocfs2_set_bit(bit_off++, bitmap);
-
-	ocfs2_journal_dirty(handle, group_bh);
-
-bail:
-	return status;
-}
-
 static int ocfs2_move_extent(struct ocfs2_move_extents_context *context,
 			     u32 cpos, u32 phys_cpos, u32 *new_phys_cpos,
 			     u32 len, int ext_flags)
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 3a903470c794..553f53cc73ae 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -387,6 +387,7 @@ struct ocfs2_super
 	u8 osb_stackflags;
 
 	char osb_cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
+	char osb_cluster_name[OCFS2_CLUSTER_NAME_LEN + 1];
 	struct ocfs2_cluster_connection *cconn;
 	struct ocfs2_lock_res osb_super_lockres;
 	struct ocfs2_lock_res osb_rename_lockres;
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index bf1f8930456f..1724d43d3da1 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -398,7 +398,8 @@ static int o2cb_cluster_disconnect(struct ocfs2_cluster_connection *conn)
 	return 0;
 }
 
-static int o2cb_cluster_this_node(unsigned int *node)
+static int o2cb_cluster_this_node(struct ocfs2_cluster_connection *conn,
+				  unsigned int *node)
 {
 	int node_num;
 
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index 286edf1e231f..13a8537d8e8b 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -23,6 +23,7 @@
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/reboot.h>
+#include <linux/sched.h>
 #include <asm/uaccess.h>
 
 #include "stackglue.h"
@@ -102,6 +103,12 @@
 #define OCFS2_TEXT_UUID_LEN			32
 #define OCFS2_CONTROL_MESSAGE_VERNUM_LEN	2
 #define OCFS2_CONTROL_MESSAGE_NODENUM_LEN	8
+#define VERSION_LOCK				"version_lock"
+
+enum ocfs2_connection_type {
+	WITH_CONTROLD,
+	NO_CONTROLD
+};
 
 /*
  * ocfs2_live_connection is refcounted because the filesystem and
@@ -110,6 +117,13 @@
 struct ocfs2_live_connection {
 	struct list_head		oc_list;
 	struct ocfs2_cluster_connection	*oc_conn;
+	enum ocfs2_connection_type	oc_type;
+	atomic_t                        oc_this_node;
+	int                             oc_our_slot;
+	struct dlm_lksb                 oc_version_lksb;
+	char                            oc_lvb[DLM_LVB_LEN];
+	struct completion               oc_sync_wait;
+	wait_queue_head_t		oc_wait;
 };
 
 struct ocfs2_control_private {
@@ -198,20 +212,15 @@ static struct ocfs2_live_connection *ocfs2_connection_find(const char *name)
  * mount path.  Since the VFS prevents multiple calls to
  * fill_super(), we can't get dupes here.
  */
-static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn,
-				     struct ocfs2_live_connection **c_ret)
+static int ocfs2_live_connection_attach(struct ocfs2_cluster_connection *conn,
+				     struct ocfs2_live_connection *c)
 {
 	int rc = 0;
-	struct ocfs2_live_connection *c;
-
-	c = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL);
-	if (!c)
-		return -ENOMEM;
 
 	mutex_lock(&ocfs2_control_lock);
 	c->oc_conn = conn;
 
-	if (atomic_read(&ocfs2_control_opened))
+	if ((c->oc_type == NO_CONTROLD) || atomic_read(&ocfs2_control_opened))
 		list_add(&c->oc_list, &ocfs2_live_connection_list);
 	else {
 		printk(KERN_ERR
@@ -220,12 +229,6 @@ static int ocfs2_live_connection_new(struct ocfs2_cluster_connection *conn,
 	}
 
 	mutex_unlock(&ocfs2_control_lock);
-
-	if (!rc)
-		*c_ret = c;
-	else
-		kfree(c);
-
 	return rc;
 }
 
@@ -799,18 +802,251 @@ static int fs_protocol_compare(struct ocfs2_protocol_version *existing,
 	return 0;
 }
 
+static void lvb_to_version(char *lvb, struct ocfs2_protocol_version *ver)
+{
+	struct ocfs2_protocol_version *pv =
+		(struct ocfs2_protocol_version *)lvb;
+	/*
+	 * ocfs2_protocol_version has two u8 variables, so we don't
+	 * need any endian conversion.
+	 */
+	ver->pv_major = pv->pv_major;
+	ver->pv_minor = pv->pv_minor;
+}
+
+static void version_to_lvb(struct ocfs2_protocol_version *ver, char *lvb)
+{
+	struct ocfs2_protocol_version *pv =
+		(struct ocfs2_protocol_version *)lvb;
+	/*
+	 * ocfs2_protocol_version has two u8 variables, so we don't
+	 * need any endian conversion.
+	 */
+	pv->pv_major = ver->pv_major;
+	pv->pv_minor = ver->pv_minor;
+}
+
+static void sync_wait_cb(void *arg)
+{
+	struct ocfs2_cluster_connection *conn = arg;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+	complete(&lc->oc_sync_wait);
+}
+
+static int sync_unlock(struct ocfs2_cluster_connection *conn,
+		struct dlm_lksb *lksb, char *name)
+{
+	int error;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+
+	error = dlm_unlock(conn->cc_lockspace, lksb->sb_lkid, 0, lksb, conn);
+	if (error) {
+		printk(KERN_ERR "%s lkid %x error %d\n",
+				name, lksb->sb_lkid, error);
+		return error;
+	}
+
+	wait_for_completion(&lc->oc_sync_wait);
+
+	if (lksb->sb_status != -DLM_EUNLOCK) {
+		printk(KERN_ERR "%s lkid %x status %d\n",
+				name, lksb->sb_lkid, lksb->sb_status);
+		return -1;
+	}
+	return 0;
+}
+
+static int sync_lock(struct ocfs2_cluster_connection *conn,
+		int mode, uint32_t flags,
+		struct dlm_lksb *lksb, char *name)
+{
+	int error, status;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+
+	error = dlm_lock(conn->cc_lockspace, mode, lksb, flags,
+			name, strlen(name),
+			0, sync_wait_cb, conn, NULL);
+	if (error) {
+		printk(KERN_ERR "%s lkid %x flags %x mode %d error %d\n",
+				name, lksb->sb_lkid, flags, mode, error);
+		return error;
+	}
+
+	wait_for_completion(&lc->oc_sync_wait);
+
+	status = lksb->sb_status;
+
+	if (status && status != -EAGAIN) {
+		printk(KERN_ERR "%s lkid %x flags %x mode %d status %d\n",
+				name, lksb->sb_lkid, flags, mode, status);
+	}
+
+	return status;
+}
+
+
+static int version_lock(struct ocfs2_cluster_connection *conn, int mode,
+		int flags)
+{
+	struct ocfs2_live_connection *lc = conn->cc_private;
+	return sync_lock(conn, mode, flags,
+			&lc->oc_version_lksb, VERSION_LOCK);
+}
+
+static int version_unlock(struct ocfs2_cluster_connection *conn)
+{
+	struct ocfs2_live_connection *lc = conn->cc_private;
+	return sync_unlock(conn, &lc->oc_version_lksb, VERSION_LOCK);
+}
+
+/* get_protocol_version()
+ *
+ * To exchange ocfs2 versioning, we use the LVB of the version dlm lock.
+ * The algorithm is:
+ * 1. Attempt to take the lock in EX mode (non-blocking).
+ * 2. If successful (which means it is the first mount), write the
+ *    version number and downconvert to PR lock.
+ * 3. If unsuccessful (returns -EAGAIN), read the version from the LVB after
+ *    taking the PR lock.
+ */
+
+static int get_protocol_version(struct ocfs2_cluster_connection *conn)
+{
+	int ret;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+	struct ocfs2_protocol_version pv;
+
+	running_proto.pv_major =
+		ocfs2_user_plugin.sp_max_proto.pv_major;
+	running_proto.pv_minor =
+		ocfs2_user_plugin.sp_max_proto.pv_minor;
+
+	lc->oc_version_lksb.sb_lvbptr = lc->oc_lvb;
+	ret = version_lock(conn, DLM_LOCK_EX,
+			DLM_LKF_VALBLK|DLM_LKF_NOQUEUE);
+	if (!ret) {
+		conn->cc_version.pv_major = running_proto.pv_major;
+		conn->cc_version.pv_minor = running_proto.pv_minor;
+		version_to_lvb(&running_proto, lc->oc_lvb);
+		version_lock(conn, DLM_LOCK_PR, DLM_LKF_CONVERT|DLM_LKF_VALBLK);
+	} else if (ret == -EAGAIN) {
+		ret = version_lock(conn, DLM_LOCK_PR, DLM_LKF_VALBLK);
+		if (ret)
+			goto out;
+		lvb_to_version(lc->oc_lvb, &pv);
+
+		if ((pv.pv_major != running_proto.pv_major) ||
+				(pv.pv_minor > running_proto.pv_minor)) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		conn->cc_version.pv_major = pv.pv_major;
+		conn->cc_version.pv_minor = pv.pv_minor;
+	}
+out:
+	return ret;
+}
+
+static void user_recover_prep(void *arg)
+{
+}
+
+static void user_recover_slot(void *arg, struct dlm_slot *slot)
+{
+	struct ocfs2_cluster_connection *conn = arg;
+	printk(KERN_INFO "ocfs2: Node %d/%d down. Initiating recovery.\n",
+			slot->nodeid, slot->slot);
+	conn->cc_recovery_handler(slot->nodeid, conn->cc_recovery_data);
+
+}
+
+static void user_recover_done(void *arg, struct dlm_slot *slots,
+		int num_slots, int our_slot,
+		uint32_t generation)
+{
+	struct ocfs2_cluster_connection *conn = arg;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+	int i;
+
+	for (i = 0; i < num_slots; i++)
+		if (slots[i].slot == our_slot) {
+			atomic_set(&lc->oc_this_node, slots[i].nodeid);
+			break;
+		}
+
+	lc->oc_our_slot = our_slot;
+	wake_up(&lc->oc_wait);
+}
+
+static const struct dlm_lockspace_ops ocfs2_ls_ops = {
+	.recover_prep = user_recover_prep,
+	.recover_slot = user_recover_slot,
+	.recover_done = user_recover_done,
+};
+
+static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
+{
+	version_unlock(conn);
+	dlm_release_lockspace(conn->cc_lockspace, 2);
+	conn->cc_lockspace = NULL;
+	ocfs2_live_connection_drop(conn->cc_private);
+	conn->cc_private = NULL;
+	return 0;
+}
+
 static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
 {
 	dlm_lockspace_t *fsdlm;
-	struct ocfs2_live_connection *uninitialized_var(control);
-	int rc = 0;
+	struct ocfs2_live_connection *lc;
+	int rc, ops_rv;
 
 	BUG_ON(conn == NULL);
 
-	rc = ocfs2_live_connection_new(conn, &control);
+	lc = kzalloc(sizeof(struct ocfs2_live_connection), GFP_KERNEL);
+	if (!lc) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	init_waitqueue_head(&lc->oc_wait);
+	init_completion(&lc->oc_sync_wait);
+	atomic_set(&lc->oc_this_node, 0);
+	conn->cc_private = lc;
+	lc->oc_type = NO_CONTROLD;
+
+	rc = dlm_new_lockspace(conn->cc_name, conn->cc_cluster_name,
+			       DLM_LSFL_FS, DLM_LVB_LEN,
+			       &ocfs2_ls_ops, conn, &ops_rv, &fsdlm);
+	if (rc)
+		goto out;
+
+	if (ops_rv == -EOPNOTSUPP) {
+		lc->oc_type = WITH_CONTROLD;
+		printk(KERN_NOTICE "ocfs2: You seem to be using an older "
+				"version of dlm_controld and/or ocfs2-tools."
+				" Please consider upgrading.\n");
+	} else if (ops_rv) {
+		rc = ops_rv;
+		goto out;
+	}
+	conn->cc_lockspace = fsdlm;
+
+	rc = ocfs2_live_connection_attach(conn, lc);
 	if (rc)
 		goto out;
 
+	if (lc->oc_type == NO_CONTROLD) {
+		rc = get_protocol_version(conn);
+		if (rc) {
+			printk(KERN_ERR "ocfs2: Could not determine"
+					" locking version\n");
+			user_cluster_disconnect(conn);
+			goto out;
+		}
+		wait_event(lc->oc_wait, (atomic_read(&lc->oc_this_node) > 0));
+	}
+
 	/*
 	 * running_proto must have been set before we allowed any mounts
 	 * to proceed.
@@ -818,42 +1054,34 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
 	if (fs_protocol_compare(&running_proto, &conn->cc_version)) {
 		printk(KERN_ERR
 		       "Unable to mount with fs locking protocol version "
-		       "%u.%u because the userspace control daemon has "
-		       "negotiated %u.%u\n",
+		       "%u.%u because negotiated protocol is %u.%u\n",
 		       conn->cc_version.pv_major, conn->cc_version.pv_minor,
 		       running_proto.pv_major, running_proto.pv_minor);
 		rc = -EPROTO;
-		ocfs2_live_connection_drop(control);
-		goto out;
-	}
-
-	rc = dlm_new_lockspace(conn->cc_name, NULL, DLM_LSFL_FS, DLM_LVB_LEN,
-			       NULL, NULL, NULL, &fsdlm);
-	if (rc) {
-		ocfs2_live_connection_drop(control);
-		goto out;
+		ocfs2_live_connection_drop(lc);
+		lc = NULL;
 	}
 
-	conn->cc_private = control;
-	conn->cc_lockspace = fsdlm;
 out:
+	if (rc && lc)
+		kfree(lc);
 	return rc;
 }
 
-static int user_cluster_disconnect(struct ocfs2_cluster_connection *conn)
-{
-	dlm_release_lockspace(conn->cc_lockspace, 2);
-	conn->cc_lockspace = NULL;
-	ocfs2_live_connection_drop(conn->cc_private);
-	conn->cc_private = NULL;
-	return 0;
-}
 
-static int user_cluster_this_node(unsigned int *this_node)
+static int user_cluster_this_node(struct ocfs2_cluster_connection *conn,
+				  unsigned int *this_node)
 {
 	int rc;
+	struct ocfs2_live_connection *lc = conn->cc_private;
+
+	if (lc->oc_type == WITH_CONTROLD)
+		rc = ocfs2_control_get_this_node();
+	else if (lc->oc_type == NO_CONTROLD)
+		rc = atomic_read(&lc->oc_this_node);
+	else
+		rc = -EINVAL;
 
-	rc = ocfs2_control_get_this_node();
 	if (rc < 0)
 		return rc;
 
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index cb7ec0b63ddc..1324e6600e57 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -309,6 +309,8 @@ int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino,
 EXPORT_SYMBOL_GPL(ocfs2_plock);
 
 int ocfs2_cluster_connect(const char *stack_name,
+			  const char *cluster_name,
+			  int cluster_name_len,
 			  const char *group,
 			  int grouplen,
 			  struct ocfs2_locking_protocol *lproto,
@@ -342,8 +344,10 @@ int ocfs2_cluster_connect(const char *stack_name,
 		goto out;
 	}
 
-	memcpy(new_conn->cc_name, group, grouplen);
+	strlcpy(new_conn->cc_name, group, GROUP_NAME_MAX + 1);
 	new_conn->cc_namelen = grouplen;
+	strlcpy(new_conn->cc_cluster_name, cluster_name, CLUSTER_NAME_MAX + 1);
+	new_conn->cc_cluster_name_len = cluster_name_len;
 	new_conn->cc_recovery_handler = recovery_handler;
 	new_conn->cc_recovery_data = recovery_data;
 
@@ -386,8 +390,9 @@ int ocfs2_cluster_connect_agnostic(const char *group,
 
 	if (cluster_stack_name[0])
 		stack_name = cluster_stack_name;
-	return ocfs2_cluster_connect(stack_name, group, grouplen, lproto,
-				     recovery_handler, recovery_data, conn);
+	return ocfs2_cluster_connect(stack_name, NULL, 0, group, grouplen,
+				     lproto, recovery_handler, recovery_data,
+				     conn);
 }
 EXPORT_SYMBOL_GPL(ocfs2_cluster_connect_agnostic);
 
@@ -460,9 +465,10 @@ void ocfs2_cluster_hangup(const char *group, int grouplen)
 }
 EXPORT_SYMBOL_GPL(ocfs2_cluster_hangup);
 
-int ocfs2_cluster_this_node(unsigned int *node)
+int ocfs2_cluster_this_node(struct ocfs2_cluster_connection *conn,
+			    unsigned int *node)
 {
-	return active_stack->sp_ops->this_node(node);
+	return active_stack->sp_ops->this_node(conn, node);
 }
 EXPORT_SYMBOL_GPL(ocfs2_cluster_this_node);
 
diff --git a/fs/ocfs2/stackglue.h b/fs/ocfs2/stackglue.h
index 1ec56fdb8d0d..66334a30cea8 100644
--- a/fs/ocfs2/stackglue.h
+++ b/fs/ocfs2/stackglue.h
@@ -45,6 +45,9 @@ struct file_lock;
  */
 #define GROUP_NAME_MAX		64
 
+/* This shadows  OCFS2_CLUSTER_NAME_LEN */
+#define CLUSTER_NAME_MAX	16
+
 
 /*
  * ocfs2_protocol_version changes when ocfs2 does something different in
@@ -97,8 +100,10 @@ struct ocfs2_locking_protocol {
  * locking compatibility.
  */
 struct ocfs2_cluster_connection {
-	char cc_name[GROUP_NAME_MAX];
+	char cc_name[GROUP_NAME_MAX + 1];
 	int cc_namelen;
+	char cc_cluster_name[CLUSTER_NAME_MAX + 1];
+	int cc_cluster_name_len;
 	struct ocfs2_protocol_version cc_version;
 	struct ocfs2_locking_protocol *cc_proto;
 	void (*cc_recovery_handler)(int node_num, void *recovery_data);
@@ -152,7 +157,8 @@ struct ocfs2_stack_operations {
 	 * ->this_node() returns the cluster's unique identifier for the
 	 * local node.
 	 */
-	int (*this_node)(unsigned int *node);
+	int (*this_node)(struct ocfs2_cluster_connection *conn,
+			 unsigned int *node);
 
 	/*
 	 * Call the underlying dlm lock function.  The ->dlm_lock()
@@ -239,6 +245,8 @@ struct ocfs2_stack_plugin {
 
 /* Used by the filesystem */
 int ocfs2_cluster_connect(const char *stack_name,
+			  const char *cluster_name,
+			  int cluster_name_len,
 			  const char *group,
 			  int grouplen,
 			  struct ocfs2_locking_protocol *lproto,
@@ -260,7 +268,8 @@ int ocfs2_cluster_connect_agnostic(const char *group,
 int ocfs2_cluster_disconnect(struct ocfs2_cluster_connection *conn,
 			     int hangup_pending);
 void ocfs2_cluster_hangup(const char *group, int grouplen);
-int ocfs2_cluster_this_node(unsigned int *node);
+int ocfs2_cluster_this_node(struct ocfs2_cluster_connection *conn,
+			    unsigned int *node);
 
 struct ocfs2_lock_res;
 int ocfs2_dlm_lock(struct ocfs2_cluster_connection *conn,
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 2c91452c4047..47ae2663a6f5 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -113,12 +113,6 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
 				     struct ocfs2_suballoc_result *res);
 static int ocfs2_test_bg_bit_allocatable(struct buffer_head *bg_bh,
 					 int nr);
-static inline int ocfs2_block_group_set_bits(handle_t *handle,
-					     struct inode *alloc_inode,
-					     struct ocfs2_group_desc *bg,
-					     struct buffer_head *group_bh,
-					     unsigned int bit_off,
-					     unsigned int num_bits);
 static int ocfs2_relink_block_group(handle_t *handle,
 				    struct inode *alloc_inode,
 				    struct buffer_head *fe_bh,
@@ -1343,7 +1337,7 @@ static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb,
 	return status;
 }
 
-static inline int ocfs2_block_group_set_bits(handle_t *handle,
+int ocfs2_block_group_set_bits(handle_t *handle,
 					     struct inode *alloc_inode,
 					     struct ocfs2_group_desc *bg,
 					     struct buffer_head *group_bh,
@@ -1388,8 +1382,6 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
 	ocfs2_journal_dirty(handle, group_bh);
 
 bail:
-	if (status)
-		mlog_errno(status);
 	return status;
 }
 
@@ -1588,7 +1580,7 @@ static int ocfs2_block_group_search(struct inode *inode,
 	return ret;
 }
 
-static int ocfs2_alloc_dinode_update_counts(struct inode *inode,
+int ocfs2_alloc_dinode_update_counts(struct inode *inode,
 				       handle_t *handle,
 				       struct buffer_head *di_bh,
 				       u32 num_bits,
diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h
index a36d0aa50911..218d8036b3e7 100644
--- a/fs/ocfs2/suballoc.h
+++ b/fs/ocfs2/suballoc.h
@@ -86,6 +86,18 @@ int ocfs2_reserve_clusters(struct ocfs2_super *osb,
 			   u32 bits_wanted,
 			   struct ocfs2_alloc_context **ac);
 
+int ocfs2_alloc_dinode_update_counts(struct inode *inode,
+			 handle_t *handle,
+			 struct buffer_head *di_bh,
+			 u32 num_bits,
+			 u16 chain);
+int ocfs2_block_group_set_bits(handle_t *handle,
+			 struct inode *alloc_inode,
+			 struct ocfs2_group_desc *bg,
+			 struct buffer_head *group_bh,
+			 unsigned int bit_off,
+			 unsigned int num_bits);
+
 int ocfs2_claim_metadata(handle_t *handle,
 			 struct ocfs2_alloc_context *ac,
 			 u32 bits_wanted,
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index c41492957aa5..49d84f80f36c 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -68,7 +68,6 @@
 #include "super.h"
 #include "sysfile.h"
 #include "uptodate.h"
-#include "ver.h"
 #include "xattr.h"
 #include "quota.h"
 #include "refcounttree.h"
@@ -90,6 +89,7 @@ static struct dentry *ocfs2_debugfs_root = NULL;
 
 MODULE_AUTHOR("Oracle");
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("OCFS2 cluster file system");
 
 struct mount_options
 {
@@ -1618,8 +1618,6 @@ static int __init ocfs2_init(void)
 {
 	int status, i;
 
-	ocfs2_print_version();
-
 	for (i = 0; i < OCFS2_IOEND_WQ_HASH_SZ; i++)
 		init_waitqueue_head(&ocfs2__ioend_wq[i]);
 
@@ -1947,11 +1945,15 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err)
 
 	ocfs2_shutdown_local_alloc(osb);
 
-	ocfs2_truncate_log_shutdown(osb);
-
 	/* This will disable recovery and flush any recovery work. */
 	ocfs2_recovery_exit(osb);
 
+	/*
+	 * During dismount, when it recovers another node it will call
+	 * ocfs2_recover_orphans and queue delayed work osb_truncate_log_wq.
+	 */
+	ocfs2_truncate_log_shutdown(osb);
+
 	ocfs2_journal_shutdown(osb);
 
 	ocfs2_sync_blockdev(sb);
@@ -2225,10 +2227,9 @@ static int ocfs2_initialize_super(struct super_block *sb,
 	if (ocfs2_clusterinfo_valid(osb)) {
 		osb->osb_stackflags =
 			OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags;
-		memcpy(osb->osb_cluster_stack,
+		strlcpy(osb->osb_cluster_stack,
 		       OCFS2_RAW_SB(di)->s_cluster_info.ci_stack,
-		       OCFS2_STACK_LABEL_LEN);
-		osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0';
+		       OCFS2_STACK_LABEL_LEN + 1);
 		if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) {
 			mlog(ML_ERROR,
 			     "couldn't mount because of an invalid "
@@ -2237,6 +2238,9 @@ static int ocfs2_initialize_super(struct super_block *sb,
 			status = -EINVAL;
 			goto bail;
 		}
+		strlcpy(osb->osb_cluster_name,
+			OCFS2_RAW_SB(di)->s_cluster_info.ci_cluster,
+			OCFS2_CLUSTER_NAME_LEN + 1);
 	} else {
 		/* The empty string is identical with classic tools that
 		 * don't know about s_cluster_info. */
diff --git a/fs/ocfs2/ver.c b/fs/ocfs2/ver.c
deleted file mode 100644
index e2488f4128a2..000000000000
--- a/fs/ocfs2/ver.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * ver.c
- *
- * version string
- *
- * Copyright (C) 2002, 2005 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#include "ver.h"
-
-#define OCFS2_BUILD_VERSION "1.5.0"
-
-#define VERSION_STR "OCFS2 " OCFS2_BUILD_VERSION
-
-void ocfs2_print_version(void)
-{
-	printk(KERN_INFO "%s\n", VERSION_STR);
-}
-
-MODULE_DESCRIPTION(VERSION_STR);
-
-MODULE_VERSION(OCFS2_BUILD_VERSION);
diff --git a/fs/ocfs2/ver.h b/fs/ocfs2/ver.h
deleted file mode 100644
index d7395cb91d2f..000000000000
--- a/fs/ocfs2/ver.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8; -*-
- * vim: noexpandtab sw=8 ts=8 sts=0:
- *
- * ver.h
- *
- * Function prototypes
- *
- * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
- */
-
-#ifndef OCFS2_VER_H
-#define OCFS2_VER_H
-
-void ocfs2_print_version(void);
-
-#endif /* OCFS2_VER_H */