Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/ata/libata-scsi.c
	include/linux/libata.h

Futher merge of Linus's head and compilation fixups.

Signed-Off-By: David Howells <dhowells@redhat.com>

27 files changed, 754 insertions, 894 deletions

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 0b2ad163005e..edc91ca3792a 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -52,14 +52,14 @@ static int ocfs2_extent_contig(struct inode *inode,
 			       u64 blkno);
 
 static int ocfs2_create_new_meta_bhs(struct ocfs2_super *osb,
-				     struct ocfs2_journal_handle *handle,
+				     handle_t *handle,
 				     struct inode *inode,
 				     int wanted,
 				     struct ocfs2_alloc_context *meta_ac,
 				     struct buffer_head *bhs[]);
 
 static int ocfs2_add_branch(struct ocfs2_super *osb,
-			    struct ocfs2_journal_handle *handle,
+			    handle_t *handle,
 			    struct inode *inode,
 			    struct buffer_head *fe_bh,
 			    struct buffer_head *eb_bh,
@@ -67,14 +67,14 @@ static int ocfs2_add_branch(struct ocfs2_super *osb,
 			    struct ocfs2_alloc_context *meta_ac);
 
 static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
-				  struct ocfs2_journal_handle *handle,
+				  handle_t *handle,
 				  struct inode *inode,
 				  struct buffer_head *fe_bh,
 				  struct ocfs2_alloc_context *meta_ac,
 				  struct buffer_head **ret_new_eb_bh);
 
 static int ocfs2_do_insert_extent(struct ocfs2_super *osb,
-				  struct ocfs2_journal_handle *handle,
+				  handle_t *handle,
 				  struct inode *inode,
 				  struct buffer_head *fe_bh,
 				  u64 blkno,
@@ -152,7 +152,7 @@ bail:
  * l_count for you
  */
 static int ocfs2_create_new_meta_bhs(struct ocfs2_super *osb,
-				     struct ocfs2_journal_handle *handle,
+				     handle_t *handle,
 				     struct inode *inode,
 				     int wanted,
 				     struct ocfs2_alloc_context *meta_ac,
@@ -253,7 +253,7 @@ bail:
  * contain a single record with e_clusters == 0.
  */
 static int ocfs2_add_branch(struct ocfs2_super *osb,
-			    struct ocfs2_journal_handle *handle,
+			    handle_t *handle,
 			    struct inode *inode,
 			    struct buffer_head *fe_bh,
 			    struct buffer_head *eb_bh,
@@ -418,7 +418,7 @@ bail:
  * after this call.
  */
 static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
-				  struct ocfs2_journal_handle *handle,
+				  handle_t *handle,
 				  struct inode *inode,
 				  struct buffer_head *fe_bh,
 				  struct ocfs2_alloc_context *meta_ac,
@@ -520,7 +520,7 @@ bail:
  * down.
  */
 static int ocfs2_do_insert_extent(struct ocfs2_super *osb,
-				  struct ocfs2_journal_handle *handle,
+				  handle_t *handle,
 				  struct inode *inode,
 				  struct buffer_head *fe_bh,
 				  u64 start_blk,
@@ -809,7 +809,7 @@ bail:
 
 /* the caller needs to update fe->i_clusters */
 int ocfs2_insert_extent(struct ocfs2_super *osb,
-			struct ocfs2_journal_handle *handle,
+			handle_t *handle,
 			struct inode *inode,
 			struct buffer_head *fe_bh,
 			u64 start_blk,
@@ -951,7 +951,7 @@ static int ocfs2_truncate_log_can_coalesce(struct ocfs2_truncate_log *tl,
 }
 
 static int ocfs2_truncate_log_append(struct ocfs2_super *osb,
-				     struct ocfs2_journal_handle *handle,
+				     handle_t *handle,
 				     u64 start_blk,
 				     unsigned int num_clusters)
 {
@@ -1034,7 +1034,7 @@ bail:
 }
 
 static int ocfs2_replay_truncate_records(struct ocfs2_super *osb,
-					 struct ocfs2_journal_handle *handle,
+					 handle_t *handle,
 					 struct inode *data_alloc_inode,
 					 struct buffer_head *data_alloc_bh)
 {
@@ -1113,7 +1113,7 @@ static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 {
 	int status;
 	unsigned int num_to_flush;
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle;
 	struct inode *tl_inode = osb->osb_tl_inode;
 	struct inode *data_alloc_inode = NULL;
 	struct buffer_head *tl_bh = osb->osb_tl_bh;
@@ -1130,7 +1130,7 @@ static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 	if (!OCFS2_IS_VALID_DINODE(di)) {
 		OCFS2_RO_ON_INVALID_DINODE(osb->sb, di);
 		status = -EIO;
-		goto bail;
+		goto out;
 	}
 
 	num_to_flush = le16_to_cpu(tl->tl_used);
@@ -1138,14 +1138,7 @@ static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 	     num_to_flush, (unsigned long long)OCFS2_I(tl_inode)->ip_blkno);
 	if (!num_to_flush) {
 		status = 0;
-		goto bail;
-	}
-
-	handle = ocfs2_alloc_handle(osb);
-	if (!handle) {
-		status = -ENOMEM;
-		mlog_errno(status);
-		goto bail;
+		goto out;
 	}
 
 	data_alloc_inode = ocfs2_get_system_file_inode(osb,
@@ -1154,41 +1147,40 @@ static int __ocfs2_flush_truncate_log(struct ocfs2_super *osb)
 	if (!data_alloc_inode) {
 		status = -EINVAL;
 		mlog(ML_ERROR, "Could not get bitmap inode!\n");
-		goto bail;
+		goto out;
 	}
 
-	ocfs2_handle_add_inode(handle, data_alloc_inode);
-	status = ocfs2_meta_lock(data_alloc_inode, handle, &data_alloc_bh, 1);
+	mutex_lock(&data_alloc_inode->i_mutex);
+
+	status = ocfs2_meta_lock(data_alloc_inode, &data_alloc_bh, 1);
 	if (status < 0) {
 		mlog_errno(status);
-		goto bail;
+		goto out_mutex;
 	}
 
-	handle = ocfs2_start_trans(osb, handle, OCFS2_TRUNCATE_LOG_UPDATE);
+	handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
-		handle = NULL;
 		mlog_errno(status);
-		goto bail;
+		goto out_unlock;
 	}
 
 	status = ocfs2_replay_truncate_records(osb, handle, data_alloc_inode,
 					       data_alloc_bh);
-	if (status < 0) {
+	if (status < 0)
 		mlog_errno(status);
-		goto bail;
-	}
 
-bail:
-	if (handle)
-		ocfs2_commit_trans(handle);
+	ocfs2_commit_trans(osb, handle);
 
-	if (data_alloc_inode)
-		iput(data_alloc_inode);
+out_unlock:
+	brelse(data_alloc_bh);
+	ocfs2_meta_unlock(data_alloc_inode, 1);
 
-	if (data_alloc_bh)
-		brelse(data_alloc_bh);
+out_mutex:
+	mutex_unlock(&data_alloc_inode->i_mutex);
+	iput(data_alloc_inode);
 
+out:
 	mlog_exit(status);
 	return status;
 }
@@ -1349,7 +1341,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 	int i;
 	unsigned int clusters, num_recs, start_cluster;
 	u64 start_blk;
-	struct ocfs2_journal_handle *handle;
+	handle_t *handle;
 	struct inode *tl_inode = osb->osb_tl_inode;
 	struct ocfs2_truncate_log *tl;
 
@@ -1375,8 +1367,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 			}
 		}
 
-		handle = ocfs2_start_trans(osb, NULL,
-					   OCFS2_TRUNCATE_LOG_UPDATE);
+		handle = ocfs2_start_trans(osb, OCFS2_TRUNCATE_LOG_UPDATE);
 		if (IS_ERR(handle)) {
 			status = PTR_ERR(handle);
 			mlog_errno(status);
@@ -1389,7 +1380,7 @@ int ocfs2_complete_truncate_log_recovery(struct ocfs2_super *osb,
 
 		status = ocfs2_truncate_log_append(osb, handle,
 						   start_blk, clusters);
-		ocfs2_commit_trans(handle);
+		ocfs2_commit_trans(osb, handle);
 		if (status < 0) {
 			mlog_errno(status);
 			goto bail_up;
@@ -1546,7 +1537,7 @@ static int ocfs2_do_truncate(struct ocfs2_super *osb,
 			     struct inode *inode,
 			     struct buffer_head *fe_bh,
 			     struct buffer_head *old_last_eb_bh,
-			     struct ocfs2_journal_handle *handle,
+			     handle_t *handle,
 			     struct ocfs2_truncate_context *tc)
 {
 	int status, i, depth;
@@ -1785,7 +1776,7 @@ int ocfs2_commit_truncate(struct ocfs2_super *osb,
 	struct ocfs2_extent_block *eb;
 	struct ocfs2_extent_list *el;
 	struct buffer_head *last_eb_bh;
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 	struct inode *tl_inode = osb->osb_tl_inode;
 
 	mlog_entry_void();
@@ -1871,7 +1862,7 @@ start:
 
 	credits = ocfs2_calc_tree_trunc_credits(osb->sb, clusters_to_del,
 						fe, el);
-	handle = ocfs2_start_trans(osb, NULL, credits);
+	handle = ocfs2_start_trans(osb, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		handle = NULL;
@@ -1894,7 +1885,7 @@ start:
 	mutex_unlock(&tl_inode->i_mutex);
 	tl_sem = 0;
 
-	ocfs2_commit_trans(handle);
+	ocfs2_commit_trans(osb, handle);
 	handle = NULL;
 
 	BUG_ON(le32_to_cpu(fe->i_clusters) < target_i_clusters);
@@ -1909,7 +1900,7 @@ bail:
 		mutex_unlock(&tl_inode->i_mutex);
 
 	if (handle)
-		ocfs2_commit_trans(handle);
+		ocfs2_commit_trans(osb, handle);
 
 	if (last_eb_bh)
 		brelse(last_eb_bh);
@@ -2014,10 +2005,7 @@ int ocfs2_prepare_truncate(struct ocfs2_super *osb,
 		mutex_lock(&ext_alloc_inode->i_mutex);
 		(*tc)->tc_ext_alloc_inode = ext_alloc_inode;
 
-		status = ocfs2_meta_lock(ext_alloc_inode,
-					 NULL,
-					 &ext_alloc_bh,
-					 1);
+		status = ocfs2_meta_lock(ext_alloc_inode, &ext_alloc_bh, 1);
 		if (status < 0) {
 			mlog_errno(status);
 			goto bail;
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 12ba897743f4..0b82e8044325 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -28,7 +28,7 @@
 
 struct ocfs2_alloc_context;
 int ocfs2_insert_extent(struct ocfs2_super *osb,
-			struct ocfs2_journal_handle *handle,
+			handle_t *handle,
 			struct inode *inode,
 			struct buffer_head *fe_bh,
 			u64 blkno,
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 3d7c082a8f58..2f7268e81520 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -200,7 +200,7 @@ static int ocfs2_readpage(struct file *file, struct page *page)
 
 	mlog_entry("(0x%p, %lu)\n", file, (page ? page->index : 0));
 
-	ret = ocfs2_meta_lock_with_page(inode, NULL, NULL, 0, page);
+	ret = ocfs2_meta_lock_with_page(inode, NULL, 0, page);
 	if (ret != 0) {
 		if (ret == AOP_TRUNCATED_PAGE)
 			unlock = 0;
@@ -305,7 +305,7 @@ static int ocfs2_prepare_write(struct file *file, struct page *page,
 
 	mlog_entry("(0x%p, 0x%p, %u, %u)\n", file, page, from, to);
 
-	ret = ocfs2_meta_lock_with_page(inode, NULL, NULL, 0, page);
+	ret = ocfs2_meta_lock_with_page(inode, NULL, 0, page);
 	if (ret != 0) {
 		mlog_errno(ret);
 		goto out;
@@ -355,16 +355,16 @@ static int walk_page_buffers(	handle_t *handle,
 	return ret;
 }
 
-struct ocfs2_journal_handle *ocfs2_start_walk_page_trans(struct inode *inode,
+handle_t *ocfs2_start_walk_page_trans(struct inode *inode,
 							 struct page *page,
 							 unsigned from,
 							 unsigned to)
 {
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 	int ret = 0;
 
-	handle = ocfs2_start_trans(osb, NULL, OCFS2_INODE_UPDATE_CREDITS);
+	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 	if (!handle) {
 		ret = -ENOMEM;
 		mlog_errno(ret);
@@ -372,7 +372,7 @@ struct ocfs2_journal_handle *ocfs2_start_walk_page_trans(struct inode *inode,
 	}
 
 	if (ocfs2_should_order_data(inode)) {
-		ret = walk_page_buffers(handle->k_handle,
+		ret = walk_page_buffers(handle,
 					page_buffers(page),
 					from, to, NULL,
 					ocfs2_journal_dirty_data);
@@ -382,7 +382,7 @@ struct ocfs2_journal_handle *ocfs2_start_walk_page_trans(struct inode *inode,
 out:
 	if (ret) {
 		if (handle)
-			ocfs2_commit_trans(handle);
+			ocfs2_commit_trans(osb, handle);
 		handle = ERR_PTR(ret);
 	}
 	return handle;
@@ -394,7 +394,7 @@ static int ocfs2_commit_write(struct file *file, struct page *page,
 	int ret;
 	struct buffer_head *di_bh = NULL;
 	struct inode *inode = page->mapping->host;
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 	struct ocfs2_dinode *di;
 
 	mlog_entry("(0x%p, 0x%p, %u, %u)\n", file, page, from, to);
@@ -412,7 +412,7 @@ static int ocfs2_commit_write(struct file *file, struct page *page,
 	 *    stale inode allocation image (i_size, i_clusters, etc).
 	 */
 
-	ret = ocfs2_meta_lock_with_page(inode, NULL, &di_bh, 1, page);
+	ret = ocfs2_meta_lock_with_page(inode, &di_bh, 1, page);
 	if (ret != 0) {
 		mlog_errno(ret);
 		goto out;
@@ -464,7 +464,7 @@ static int ocfs2_commit_write(struct file *file, struct page *page,
 	}
 
 out_commit:
-	ocfs2_commit_trans(handle);
+	ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
 out_unlock_data:
 	ocfs2_data_unlock(inode, 1);
 out_unlock_meta:
@@ -490,7 +490,7 @@ static sector_t ocfs2_bmap(struct address_space *mapping, sector_t block)
 	 * accessed concurrently from multiple nodes.
 	 */
 	if (!INODE_JOURNAL(inode)) {
-		err = ocfs2_meta_lock(inode, NULL, NULL, 0);
+		err = ocfs2_meta_lock(inode, NULL, 0);
 		if (err) {
 			if (err != -ENOENT)
 				mlog_errno(err);
diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h
index e88c3f0b8fa9..f446a15eab88 100644
--- a/fs/ocfs2/aops.h
+++ b/fs/ocfs2/aops.h
@@ -25,7 +25,7 @@
 int ocfs2_prepare_write_nolock(struct inode *inode, struct page *page,
 			       unsigned from, unsigned to);
 
-struct ocfs2_journal_handle *ocfs2_start_walk_page_trans(struct inode *inode,
+handle_t *ocfs2_start_walk_page_trans(struct inode *inode,
 							 struct page *page,
 							 unsigned from,
 							 unsigned to);
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 04e01915b86e..baad2aa27c14 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -82,6 +82,7 @@ int ocfs2_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	struct inode *inode = filp->f_dentry->d_inode;
 	struct super_block * sb = inode->i_sb;
 	unsigned int ra_sectors = 16;
+	int lock_level = 0;
 
 	mlog_entry("dirino=%llu\n",
 		   (unsigned long long)OCFS2_I(inode)->ip_blkno);
@@ -89,7 +90,15 @@ int ocfs2_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	stored = 0;
 	bh = NULL;
 
-	error = ocfs2_meta_lock(inode, NULL, NULL, 0);
+	error = ocfs2_meta_lock_atime(inode, filp->f_vfsmnt, &lock_level);
+	if (lock_level && error >= 0) {
+		/* We release EX lock which used to update atime
+		 * and get PR lock again to reduce contention
+		 * on commonly accessed directories. */
+		ocfs2_meta_unlock(inode, 1);
+		lock_level = 0;
+		error = ocfs2_meta_lock(inode, NULL, 0);
+	}
 	if (error < 0) {
 		if (error != -ENOENT)
 			mlog_errno(error);
@@ -198,7 +207,7 @@ revalidate:
 
 	stored = 0;
 bail:
-	ocfs2_meta_unlock(inode, 0);
+	ocfs2_meta_unlock(inode, lock_level);
 
 bail_nolock:
 	mlog_exit(stored);
@@ -340,7 +349,7 @@ int ocfs2_empty_dir(struct inode *inode)
 
 /* returns a bh of the 1st new block in the allocation. */
 int ocfs2_do_extend_dir(struct super_block *sb,
-			struct ocfs2_journal_handle *handle,
+			handle_t *handle,
 			struct inode *dir,
 			struct buffer_head *parent_fe_bh,
 			struct ocfs2_alloc_context *data_ac,
@@ -398,7 +407,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	struct ocfs2_dinode *fe = (struct ocfs2_dinode *) parent_fe_bh->b_data;
 	struct ocfs2_alloc_context *data_ac = NULL;
 	struct ocfs2_alloc_context *meta_ac = NULL;
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 	struct buffer_head *new_bh = NULL;
 	struct ocfs2_dir_entry * de;
 	struct super_block *sb = osb->sb;
@@ -409,13 +418,6 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	mlog(0, "extending dir %llu (i_size = %lld)\n",
 	     (unsigned long long)OCFS2_I(dir)->ip_blkno, dir_i_size);
 
-	handle = ocfs2_alloc_handle(osb);
-	if (handle == NULL) {
-		status = -ENOMEM;
-		mlog_errno(status);
-		goto bail;
-	}
-
 	/* dir->i_size is always block aligned. */
 	spin_lock(&OCFS2_I(dir)->ip_lock);
 	if (dir_i_size == ocfs2_clusters_to_bytes(sb, OCFS2_I(dir)->ip_clusters)) {
@@ -428,8 +430,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 		}
 
 		if (!num_free_extents) {
-			status = ocfs2_reserve_new_metadata(osb, handle,
-							    fe, &meta_ac);
+			status = ocfs2_reserve_new_metadata(osb, fe, &meta_ac);
 			if (status < 0) {
 				if (status != -ENOSPC)
 					mlog_errno(status);
@@ -437,7 +438,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 			}
 		}
 
-		status = ocfs2_reserve_clusters(osb, handle, 1, &data_ac);
+		status = ocfs2_reserve_clusters(osb, 1, &data_ac);
 		if (status < 0) {
 			if (status != -ENOSPC)
 				mlog_errno(status);
@@ -450,7 +451,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 		credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
 	}
 
-	handle = ocfs2_start_trans(osb, handle, credits);
+	handle = ocfs2_start_trans(osb, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		handle = NULL;
@@ -496,7 +497,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	get_bh(*new_de_bh);
 bail:
 	if (handle)
-		ocfs2_commit_trans(handle);
+		ocfs2_commit_trans(osb, handle);
 
 	if (data_ac)
 		ocfs2_free_alloc_context(data_ac);
diff --git a/fs/ocfs2/dir.h b/fs/ocfs2/dir.h
index 5f614ec9649c..3f67e146864a 100644
--- a/fs/ocfs2/dir.h
+++ b/fs/ocfs2/dir.h
@@ -45,7 +45,7 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
 				 struct buffer_head **ret_de_bh);
 struct ocfs2_alloc_context;
 int ocfs2_do_extend_dir(struct super_block *sb,
-			struct ocfs2_journal_handle *handle,
+			handle_t *handle,
 			struct inode *dir,
 			struct buffer_head *parent_fe_bh,
 			struct ocfs2_alloc_context *data_ac,
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
index 637646e6922e..420a375a3949 100644
--- a/fs/ocfs2/dlm/dlmdomain.c
+++ b/fs/ocfs2/dlm/dlmdomain.c
@@ -68,7 +68,8 @@ static void **dlm_alloc_pagevec(int pages)
 			goto out_free;
 
 	mlog(0, "Allocated DLM hash pagevec; %d pages (%lu expected), %lu buckets per page\n",
-	     pages, DLM_HASH_PAGES, (unsigned long)DLM_BUCKETS_PER_PAGE);
+	     pages, (unsigned long)DLM_HASH_PAGES,
+	     (unsigned long)DLM_BUCKETS_PER_PAGE);
 	return vec;
 out_free:
 	dlm_free_pagevec(vec, i);
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 8801e41afe80..69fba16efbd1 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -49,6 +49,7 @@
 #include "dcache.h"
 #include "dlmglue.h"
 #include "extent_map.h"
+#include "file.h"
 #include "heartbeat.h"
 #include "inode.h"
 #include "journal.h"
@@ -1063,10 +1064,10 @@ static void ocfs2_cluster_unlock(struct ocfs2_super *osb,
 	mlog_exit_void();
 }
 
-int ocfs2_create_new_lock(struct ocfs2_super *osb,
-			  struct ocfs2_lock_res *lockres,
-			  int ex,
-			  int local)
+static int ocfs2_create_new_lock(struct ocfs2_super *osb,
+				 struct ocfs2_lock_res *lockres,
+				 int ex,
+				 int local)
 {
 	int level =  ex ? LKM_EXMODE : LKM_PRMODE;
 	unsigned long flags;
@@ -1579,7 +1580,6 @@ static int ocfs2_assign_bh(struct inode *inode,
  * the result of the lock will be communicated via the callback.
  */
 int ocfs2_meta_lock_full(struct inode *inode,
-			 struct ocfs2_journal_handle *handle,
 			 struct buffer_head **ret_bh,
 			 int ex,
 			 int arg_flags)
@@ -1668,12 +1668,6 @@ int ocfs2_meta_lock_full(struct inode *inode,
 		}
 	}
 
-	if (handle) {
-		status = ocfs2_handle_add_lock(handle, inode);
-		if (status < 0)
-			mlog_errno(status);
-	}
-
 bail:
 	if (status < 0) {
 		if (ret_bh && (*ret_bh)) {
@@ -1713,18 +1707,16 @@ bail:
  * the lock inversion simply.
  */
 int ocfs2_meta_lock_with_page(struct inode *inode,
-			      struct ocfs2_journal_handle *handle,
 			      struct buffer_head **ret_bh,
 			      int ex,
 			      struct page *page)
 {
 	int ret;
 
-	ret = ocfs2_meta_lock_full(inode, handle, ret_bh, ex,
-				   OCFS2_LOCK_NONBLOCK);
+	ret = ocfs2_meta_lock_full(inode, ret_bh, ex, OCFS2_LOCK_NONBLOCK);
 	if (ret == -EAGAIN) {
 		unlock_page(page);
-		if (ocfs2_meta_lock(inode, handle, ret_bh, ex) == 0)
+		if (ocfs2_meta_lock(inode, ret_bh, ex) == 0)
 			ocfs2_meta_unlock(inode, ex);
 		ret = AOP_TRUNCATED_PAGE;
 	}
@@ -1732,6 +1724,44 @@ int ocfs2_meta_lock_with_page(struct inode *inode,
 	return ret;
 }
 
+int ocfs2_meta_lock_atime(struct inode *inode,
+			  struct vfsmount *vfsmnt,
+			  int *level)
+{
+	int ret;
+
+	mlog_entry_void();
+	ret = ocfs2_meta_lock(inode, NULL, 0);
+	if (ret < 0) {
+		mlog_errno(ret);
+		return ret;
+	}
+
+	/*
+	 * If we should update atime, we will get EX lock,
+	 * otherwise we just get PR lock.
+	 */
+	if (ocfs2_should_update_atime(inode, vfsmnt)) {
+		struct buffer_head *bh = NULL;
+
+		ocfs2_meta_unlock(inode, 0);
+		ret = ocfs2_meta_lock(inode, &bh, 1);
+		if (ret < 0) {
+			mlog_errno(ret);
+			return ret;
+		}
+		*level = 1;
+		if (ocfs2_should_update_atime(inode, vfsmnt))
+			ocfs2_update_inode_atime(inode, bh);
+		if (bh)
+			brelse(bh);
+	} else
+		*level = 0;
+
+	mlog_exit(ret);
+	return ret;
+}
+
 void ocfs2_meta_unlock(struct inode *inode,
 		       int ex)
 {
diff --git a/fs/ocfs2/dlmglue.h b/fs/ocfs2/dlmglue.h
index 4a2769387229..c343fca68cf1 100644
--- a/fs/ocfs2/dlmglue.h
+++ b/fs/ocfs2/dlmglue.h
@@ -68,8 +68,6 @@ void ocfs2_dentry_lock_res_init(struct ocfs2_dentry_lock *dl,
 				u64 parent, struct inode *inode);
 void ocfs2_lock_res_free(struct ocfs2_lock_res *res);
 int ocfs2_create_new_inode_locks(struct inode *inode);
-int ocfs2_create_new_lock(struct ocfs2_super *osb,
-			  struct ocfs2_lock_res *lockres, int ex, int local);
 int ocfs2_drop_inode_locks(struct inode *inode);
 int ocfs2_data_lock_full(struct inode *inode,
 			 int write,
@@ -82,19 +80,20 @@ void ocfs2_data_unlock(struct inode *inode,
 		       int write);
 int ocfs2_rw_lock(struct inode *inode, int write);
 void ocfs2_rw_unlock(struct inode *inode, int write);
+int ocfs2_meta_lock_atime(struct inode *inode,
+			  struct vfsmount *vfsmnt,
+			  int *level);
 int ocfs2_meta_lock_full(struct inode *inode,
-			 struct ocfs2_journal_handle *handle,
 			 struct buffer_head **ret_bh,
 			 int ex,
 			 int arg_flags);
 int ocfs2_meta_lock_with_page(struct inode *inode,
-			      struct ocfs2_journal_handle *handle,
 			      struct buffer_head **ret_bh,
 			      int ex,
 			      struct page *page);
 /* 99% of the time we don't want to supply any additional flags --
  * those are for very specific cases only. */
-#define ocfs2_meta_lock(i, h, b, e) ocfs2_meta_lock_full(i, h, b, e, 0)
+#define ocfs2_meta_lock(i, b, e) ocfs2_meta_lock_full(i, b, e, 0)
 void ocfs2_meta_unlock(struct inode *inode,
 		       int ex);
 int ocfs2_super_lock(struct ocfs2_super *osb,
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index fb91089a60a7..06be6e774cf9 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -100,7 +100,7 @@ static struct dentry *ocfs2_get_parent(struct dentry *child)
 	mlog(0, "find parent of directory %llu\n",
 	     (unsigned long long)OCFS2_I(dir)->ip_blkno);
 
-	status = ocfs2_meta_lock(dir, NULL, NULL, 0);
+	status = ocfs2_meta_lock(dir, NULL, 0);
 	if (status < 0) {
 		if (status != -ENOENT)
 			mlog_errno(status);
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 1be74c4e7814..8786b3c490aa 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -31,6 +31,8 @@
 #include <linux/pagemap.h>
 #include <linux/uio.h>
 #include <linux/sched.h>
+#include <linux/pipe_fs_i.h>
+#include <linux/mount.h>
 
 #define MLOG_MASK_PREFIX ML_INODE
 #include <cluster/masklog.h>
@@ -134,7 +136,58 @@ bail:
 	return (err < 0) ? -EIO : 0;
 }
 
-int ocfs2_set_inode_size(struct ocfs2_journal_handle *handle,
+int ocfs2_should_update_atime(struct inode *inode,
+			      struct vfsmount *vfsmnt)
+{
+	struct timespec now;
+	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+
+	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
+		return 0;
+
+	if ((inode->i_flags & S_NOATIME) ||
+	    ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode)))
+		return 0;
+
+	if ((vfsmnt->mnt_flags & MNT_NOATIME) ||
+	    ((vfsmnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
+		return 0;
+
+	now = CURRENT_TIME;
+	if ((now.tv_sec - inode->i_atime.tv_sec <= osb->s_atime_quantum))
+		return 0;
+	else
+		return 1;
+}
+
+int ocfs2_update_inode_atime(struct inode *inode,
+			     struct buffer_head *bh)
+{
+	int ret;
+	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
+	handle_t *handle;
+
+	mlog_entry_void();
+
+	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+	if (handle == NULL) {
+		ret = -ENOMEM;
+		mlog_errno(ret);
+		goto out;
+	}
+
+	inode->i_atime = CURRENT_TIME;
+	ret = ocfs2_mark_inode_dirty(handle, inode, bh);
+	if (ret < 0)
+		mlog_errno(ret);
+
+	ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle);
+out:
+	mlog_exit(ret);
+	return ret;
+}
+
+int ocfs2_set_inode_size(handle_t *handle,
 			 struct inode *inode,
 			 struct buffer_head *fe_bh,
 			 u64 new_i_size)
@@ -163,10 +216,9 @@ static int ocfs2_simple_size_update(struct inode *inode,
 {
 	int ret;
 	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 
-	handle = ocfs2_start_trans(osb, NULL,
-				   OCFS2_INODE_UPDATE_CREDITS);
+	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 	if (handle == NULL) {
 		ret = -ENOMEM;
 		mlog_errno(ret);
@@ -178,7 +230,7 @@ static int ocfs2_simple_size_update(struct inode *inode,
 	if (ret < 0)
 		mlog_errno(ret);
 
-	ocfs2_commit_trans(handle);
+	ocfs2_commit_trans(osb, handle);
 out:
 	return ret;
 }
@@ -189,14 +241,14 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
 				     u64 new_i_size)
 {
 	int status;
-	struct ocfs2_journal_handle *handle;
+	handle_t *handle;
 
 	mlog_entry_void();
 
 	/* TODO: This needs to actually orphan the inode in this
 	 * transaction. */
 
-	handle = ocfs2_start_trans(osb, NULL, OCFS2_INODE_UPDATE_CREDITS);
+	handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		mlog_errno(status);
@@ -207,7 +259,7 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb,
 	if (status < 0)
 		mlog_errno(status);
 
-	ocfs2_commit_trans(handle);
+	ocfs2_commit_trans(osb, handle);
 out:
 	mlog_exit(status);
 	return status;
@@ -328,7 +380,7 @@ int ocfs2_do_extend_allocation(struct ocfs2_super *osb,
 			       struct inode *inode,
 			       u32 clusters_to_add,
 			       struct buffer_head *fe_bh,
-			       struct ocfs2_journal_handle *handle,
+			       handle_t *handle,
 			       struct ocfs2_alloc_context *data_ac,
 			       struct ocfs2_alloc_context *meta_ac,
 			       enum ocfs2_alloc_restarted *reason_ret)
@@ -433,7 +485,7 @@ static int ocfs2_extend_allocation(struct inode *inode,
 	u32 prev_clusters;
 	struct buffer_head *bh = NULL;
 	struct ocfs2_dinode *fe = NULL;
-	struct ocfs2_journal_handle *handle = NULL;
+	handle_t *handle = NULL;
 	struct ocfs2_alloc_context *data_ac = NULL;
 	struct ocfs2_alloc_context *meta_ac = NULL;
 	enum ocfs2_alloc_restarted why;
@@ -463,13 +515,6 @@ restart_all:
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno, i_size_read(inode),
 	     fe->i_clusters, clusters_to_add);
 
-	handle = ocfs2_alloc_handle(osb);
-	if (handle == NULL) {
-		status = -ENOMEM;
-		mlog_errno(status);
-		goto leave;
-	}
-
 	num_free_extents = ocfs2_num_free_extents(osb,
 						  inode,
 						  fe);
@@ -480,10 +525,7 @@ restart_all:
 	}
 
 	if (!num_free_extents) {
-		status = ocfs2_reserve_new_metadata(osb,
-						    handle,
-						    fe,
-						    &meta_ac);
+		status = ocfs2_reserve_new_metadata(osb, fe, &meta_ac);
 		if (status < 0) {
 			if (status != -ENOSPC)
 				mlog_errno(status);
@@ -491,10 +533,7 @@ restart_all:
 		}
 	}
 
-	status = ocfs2_reserve_clusters(osb,
-					handle,
-					clusters_to_add,
-					&data_ac);
+	status = ocfs2_reserve_clusters(osb, clusters_to_add, &data_ac);
 	if (status < 0) {
 		if (status != -ENOSPC)
 			mlog_errno(status);
@@ -509,7 +548,7 @@ restart_all:
 	drop_alloc_sem = 1;
 
 	credits = ocfs2_calc_extend_credits(osb->sb, fe, clusters_to_add);
-	handle = ocfs2_start_trans(osb, handle, credits);
+	handle = ocfs2_start_trans(osb, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
 		handle = NULL;
@@ -589,7 +628,7 @@ leave:
 		drop_alloc_sem = 0;
 	}
 	if (handle) {
-		ocfs2_commit_trans(handle);
+		ocfs2_commit_trans(osb, handle);