ocfs2: Require an inode for ocfs2_read_block(s)().

Now that synchronous readers are using ocfs2_read_blocks_sync(), all
callers of ocfs2_read_blocks() are passing an inode.  Use it
unconditionally.  Since it's there, we don't need to pass the
ocfs2_super either.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 052c4cf..a164e09 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -705,8 +705,8 @@
 	last_eb_blk = ocfs2_et_get_last_eb_blk(et);
 
 	if (last_eb_blk) {
-		retval = ocfs2_read_block(osb, last_eb_blk,
-					  &eb_bh, OCFS2_BH_CACHED, inode);
+		retval = ocfs2_read_block(inode, last_eb_blk,
+					  &eb_bh, OCFS2_BH_CACHED);
 		if (retval < 0) {
 			mlog_errno(retval);
 			goto bail;
@@ -1176,8 +1176,7 @@
 		brelse(bh);
 		bh = NULL;
 
-		status = ocfs2_read_block(osb, blkno, &bh, OCFS2_BH_CACHED,
-					  inode);
+		status = ocfs2_read_block(inode, blkno, &bh, OCFS2_BH_CACHED);
 		if (status < 0) {
 			mlog_errno(status);
 			goto bail;
@@ -1541,8 +1540,7 @@
 
 		brelse(bh);
 		bh = NULL;
-		ret = ocfs2_read_block(OCFS2_SB(inode->i_sb), blkno,
-				       &bh, OCFS2_BH_CACHED, inode);
+		ret = ocfs2_read_block(inode, blkno, &bh, OCFS2_BH_CACHED);
 		if (ret) {
 			mlog_errno(ret);
 			goto out;
@@ -4296,9 +4294,9 @@
 		 * ocfs2_figure_insert_type() and ocfs2_add_branch()
 		 * may want it later.
 		 */
-		ret = ocfs2_read_block(OCFS2_SB(inode->i_sb),
+		ret = ocfs2_read_block(inode,
 				       ocfs2_et_get_last_eb_blk(et), &bh,
-				       OCFS2_BH_CACHED, inode);
+				       OCFS2_BH_CACHED);
 		if (ret) {
 			mlog_exit(ret);
 			goto out;
@@ -4764,9 +4762,9 @@
 	if (path->p_tree_depth) {
 		struct ocfs2_extent_block *eb;
 
-		ret = ocfs2_read_block(OCFS2_SB(inode->i_sb),
+		ret = ocfs2_read_block(inode,
 				       ocfs2_et_get_last_eb_blk(et),
-				       &last_eb_bh, OCFS2_BH_CACHED, inode);
+				       &last_eb_bh, OCFS2_BH_CACHED);
 		if (ret) {
 			mlog_exit(ret);
 			goto out;
@@ -4923,9 +4921,9 @@
 
 	depth = path->p_tree_depth;
 	if (depth > 0) {
-		ret = ocfs2_read_block(OCFS2_SB(inode->i_sb),
+		ret = ocfs2_read_block(inode,
 				       ocfs2_et_get_last_eb_blk(et),
-				       &last_eb_bh, OCFS2_BH_CACHED, inode);
+				       &last_eb_bh, OCFS2_BH_CACHED);
 		if (ret < 0) {
 			mlog_errno(ret);
 			goto out;
@@ -5592,8 +5590,8 @@
 		goto bail;
 	}
 
-	status = ocfs2_read_block(osb, OCFS2_I(inode)->ip_blkno, &bh,
-				  OCFS2_BH_CACHED, inode);
+	status = ocfs2_read_block(inode, OCFS2_I(inode)->ip_blkno, &bh,
+				  OCFS2_BH_CACHED);
 	if (status < 0) {
 		iput(inode);
 		mlog_errno(status);
@@ -6991,8 +6989,8 @@
 	ocfs2_init_dealloc_ctxt(&(*tc)->tc_dealloc);
 
 	if (fe->id2.i_list.l_tree_depth) {
-		status = ocfs2_read_block(osb, le64_to_cpu(fe->i_last_eb_blk),
-					  &last_eb_bh, OCFS2_BH_CACHED, inode);
+		status = ocfs2_read_block(inode, le64_to_cpu(fe->i_last_eb_blk),
+					  &last_eb_bh, OCFS2_BH_CACHED);
 		if (status < 0) {
 			mlog_errno(status);
 			goto bail;