diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 8c2caff..a15845c 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3047,6 +3047,10 @@
 
 		bio->bi_sector += p->start_sect;
 		bio->bi_bdev = bdev->bd_contains;
+
+		blk_add_trace_remap(bdev_get_queue(bio->bi_bdev), bio,
+				    bdev->bd_dev, bio->bi_sector,
+				    bio->bi_sector - p->start_sect);
 	}
 }
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index a11b2bd..084358a 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -1977,12 +1977,13 @@
 {
 	ReadCapdata_struct *buf;
 	int return_code;
-	buf = kmalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
-	if (buf == NULL) {
+
+	buf = kzalloc(sizeof(ReadCapdata_struct), GFP_KERNEL);
+	if (!buf) {
 		printk(KERN_WARNING "cciss: out of memory\n");
 		return;
 	}
-	memset(buf, 0, sizeof(ReadCapdata_struct));
+
 	if (withirq)
 		return_code = sendcmd_withirq(CCISS_READ_CAPACITY,
 				ctlr, buf, sizeof(ReadCapdata_struct),
@@ -2003,7 +2004,6 @@
 		printk(KERN_INFO "      blocks= %llu block_size= %d\n",
 		(unsigned long long)*total_size+1, *block_size);
 	kfree(buf);
-	return;
 }
 
 static void
@@ -2011,12 +2011,13 @@
 {
 	ReadCapdata_struct_16 *buf;
 	int return_code;
-	buf = kmalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
-	if (buf == NULL) {
+
+	buf = kzalloc(sizeof(ReadCapdata_struct_16), GFP_KERNEL);
+	if (!buf) {
 		printk(KERN_WARNING "cciss: out of memory\n");
 		return;
 	}
-	memset(buf, 0, sizeof(ReadCapdata_struct_16));
+
 	if (withirq) {
 		return_code = sendcmd_withirq(CCISS_READ_CAPACITY_16,
 			ctlr, buf, sizeof(ReadCapdata_struct_16),
@@ -2038,7 +2039,6 @@
 	printk(KERN_INFO "      blocks= %llu block_size= %d\n",
 	       (unsigned long long)*total_size+1, *block_size);
 	kfree(buf);
-	return;
 }
 
 static int cciss_revalidate(struct gendisk *disk)
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index be4e3477d..eb9799a 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -420,18 +420,17 @@
 			goto Enomem2;
 	}
 
-	hba[i]->cmd_pool = (cmdlist_t *)pci_alloc_consistent(
+	hba[i]->cmd_pool = pci_alloc_consistent(
 		hba[i]->pci_dev, NR_CMDS * sizeof(cmdlist_t),
 		&(hba[i]->cmd_pool_dhandle));
-	hba[i]->cmd_pool_bits = kmalloc(
-		((NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG)*sizeof(unsigned long),
+	hba[i]->cmd_pool_bits = kcalloc(
+		(NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG, sizeof(unsigned long),
 		GFP_KERNEL);
 
 	if (!hba[i]->cmd_pool_bits || !hba[i]->cmd_pool)
 			goto Enomem1;
 
 	memset(hba[i]->cmd_pool, 0, NR_CMDS * sizeof(cmdlist_t));
-	memset(hba[i]->cmd_pool_bits, 0, ((NR_CMDS+BITS_PER_LONG-1)/BITS_PER_LONG)*sizeof(unsigned long));
 	printk(KERN_INFO "cpqarray: Finding drives on %s",
 		hba[i]->devname);
 
@@ -1660,45 +1659,30 @@
 
 	info_p->log_drv_map = 0;	
 	
-	id_ldrive = kmalloc(sizeof(id_log_drv_t), GFP_KERNEL);
-	if(id_ldrive == NULL)
-	{
+	id_ldrive = kzalloc(sizeof(id_log_drv_t), GFP_KERNEL);
+	if (!id_ldrive)	{
 		printk( KERN_ERR "cpqarray:  out of memory.\n");
-		return;
+		goto err_0;
 	}
 
-	id_ctlr_buf = kmalloc(sizeof(id_ctlr_t), GFP_KERNEL);
-	if(id_ctlr_buf == NULL)
-	{
-		kfree(id_ldrive);
+	id_ctlr_buf = kzalloc(sizeof(id_ctlr_t), GFP_KERNEL);
+	if (!id_ctlr_buf) {
 		printk( KERN_ERR "cpqarray:  out of memory.\n");
-		return;
+		goto err_1;
 	}
 
-	id_lstatus_buf = kmalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
-	if(id_lstatus_buf == NULL)
-	{
-		kfree(id_ctlr_buf);
-		kfree(id_ldrive);
+	id_lstatus_buf = kzalloc(sizeof(sense_log_drv_stat_t), GFP_KERNEL);
+	if (!id_lstatus_buf) {
 		printk( KERN_ERR "cpqarray:  out of memory.\n");
-		return;
+		goto err_2;
 	}
 
-	sense_config_buf = kmalloc(sizeof(config_t), GFP_KERNEL);
-	if(sense_config_buf == NULL)
-	{
-		kfree(id_lstatus_buf);
-		kfree(id_ctlr_buf);
-		kfree(id_ldrive);
+	sense_config_buf = kzalloc(sizeof(config_t), GFP_KERNEL);
+	if (!sense_config_buf) {
 		printk( KERN_ERR "cpqarray:  out of memory.\n");
-		return;
+		goto err_3;
 	}
 
-	memset(id_ldrive, 0, sizeof(id_log_drv_t));
-	memset(id_ctlr_buf, 0, sizeof(id_ctlr_t));
-	memset(id_lstatus_buf, 0, sizeof(sense_log_drv_stat_t));
-	memset(sense_config_buf, 0, sizeof(config_t));
-
 	info_p->phys_drives = 0;
 	info_p->log_drv_map = 0;
 	info_p->drv_assign_map = 0;
@@ -1712,13 +1696,8 @@
 		 * so the idastubopen will fail on all logical drives
 		 * on the controller.
 		 */
-		 /* Free all the buffers and return */ 
 		printk(KERN_ERR "cpqarray: error sending ID controller\n");
-		kfree(sense_config_buf);
-                kfree(id_lstatus_buf);
-                kfree(id_ctlr_buf);
-                kfree(id_ldrive);
-                return;
+                goto err_4;
         }
 
 	info_p->log_drives = id_ctlr_buf->nr_drvs;
@@ -1764,12 +1743,7 @@
 				" failed to report status of logical drive %d\n"
 			 "Access to this controller has been disabled\n",
 				ctlr, log_unit);
-			/* Free all the buffers and return */
-                	kfree(sense_config_buf);
-                	kfree(id_lstatus_buf);
-                	kfree(id_ctlr_buf);
-                	kfree(id_ldrive);
-                	return;
+                	goto err_4;
 		}
 		/*
 		   Make sure the logical drive is configured
@@ -1798,14 +1772,8 @@
 				 sizeof(config_t), 0, 0, log_unit);
 				if (ret_code == IO_ERROR) {
 					info_p->log_drv_map = 0;
-					/* Free all the buffers and return */
                 			printk(KERN_ERR "cpqarray: error sending sense config\n");
-                			kfree(sense_config_buf);
-                			kfree(id_lstatus_buf);
-                			kfree(id_ctlr_buf);
-                			kfree(id_ldrive);
-                			return;
-
+                			goto err_4;
 				}
 
 				info_p->phys_drives =
@@ -1820,12 +1788,18 @@
 			log_index = log_index + 1;
 		}		/* end of if logical drive configured */
 	}			/* end of for log_unit */
-	kfree(sense_config_buf);
-  	kfree(id_ldrive);
-  	kfree(id_lstatus_buf);
-	kfree(id_ctlr_buf);
-	return;
 
+	/* Free all the buffers and return */
+err_4:
+	kfree(sense_config_buf);
+err_3:
+  	kfree(id_lstatus_buf);
+err_2:
+	kfree(id_ctlr_buf);
+err_1:
+  	kfree(id_ldrive);
+err_0:
+	return;
 }
 
 static void __exit cpqarray_exit(void)
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index 85916e2..af3969a 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -41,7 +41,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/completion.h>
 #include <linux/device.h>
-#include <linux/kernel.h>
 
 #include <asm/uaccess.h>
 #include <asm/vio.h>
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index cb27e88..3ede0b6 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -902,26 +902,17 @@
 	return 0;
 }
 
-static int ace_ioctl(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
+static int ace_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
-	struct ace_device *ace = inode->i_bdev->bd_disk->private_data;
-	struct hd_geometry __user *geo = (struct hd_geometry __user *)arg;
-	struct hd_geometry g;
-	dev_dbg(ace->dev, "ace_ioctl()\n");
+	struct ace_device *ace = bdev->bd_disk->private_data;
 
-	switch (cmd) {
-	case HDIO_GETGEO:
-		g.heads = ace->cf_id.heads;
-		g.sectors = ace->cf_id.sectors;
-		g.cylinders = ace->cf_id.cyls;
-		g.start = 0;
-		return copy_to_user(geo, &g, sizeof(g)) ? -EFAULT : 0;
+	dev_dbg(ace->dev, "ace_getgeo()\n");
 
-	default:
-		return -ENOTTY;
-	}
-	return -ENOTTY;
+	geo->heads = ace->cf_id.heads;
+	geo->sectors = ace->cf_id.sectors;
+	geo->cylinders = ace->cf_id.cyls;
+
+	return 0;
 }
 
 static struct block_device_operations ace_fops = {
@@ -930,7 +921,7 @@
 	.release = ace_release,
 	.media_changed = ace_media_changed,
 	.revalidate_disk = ace_revalidate_disk,
-	.ioctl = ace_ioctl,
+	.getgeo = ace_getgeo,
 };
 
 /* --------------------------------------------------------------------
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 141ff9f..2120155 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -580,8 +580,8 @@
 		/* the bio has been remapped so dispatch it */
 
 		blk_add_trace_remap(bdev_get_queue(clone->bi_bdev), clone,
-				    tio->io->bio->bi_bdev->bd_dev, sector,
-				    clone->bi_sector);
+				    tio->io->bio->bi_bdev->bd_dev,
+				    clone->bi_sector, sector);
 
 		generic_make_request(clone);
 	} else if (r < 0 || r == DM_MAPIO_REQUEUE) {
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 4d85262..1ddef34 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -24,6 +24,8 @@
 #include <linux/mempool.h>
 #include <linux/ioprio.h>
 
+#ifdef CONFIG_BLOCK
+
 /* Platforms may set this to teach the BIO layer about IOMMU hardware. */
 #include <asm/io.h>
 
@@ -361,4 +363,5 @@
 	__bio_kmap_irq((bio), (bio)->bi_idx, (flags))
 #define bio_kunmap_irq(buf,flags)	__bio_kunmap_irq(buf, flags)
 
+#endif /* CONFIG_BLOCK */
 #endif /* __LINUX_BIO_H */
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 90874a5..7b5d56b 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -105,7 +105,7 @@
  */
 struct blk_io_trace_remap {
 	__be32 device;
-	u32 __pad;
+	__be32 device_from;
 	__be64 sector;
 };
 
@@ -272,6 +272,7 @@
 		return;
 
 	r.device = cpu_to_be32(dev);
+	r.device_from = cpu_to_be32(bio->bi_bdev->bd_dev);
 	r.sector = cpu_to_be64(to);
 
 	__blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6bf1395..16421f6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1659,7 +1659,6 @@
 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
 extern int file_read_actor(read_descriptor_t * desc, struct page *page, unsigned long offset, unsigned long size);
-extern int file_send_actor(read_descriptor_t * desc, struct page *page, unsigned long offset, unsigned long size);
 int generic_write_checks(struct file *file, loff_t *pos, size_t *count, int isblk);
 extern ssize_t generic_file_aio_read(struct kiocb *, const struct iovec *, unsigned long, loff_t);
 extern ssize_t generic_file_aio_write(struct kiocb *, const struct iovec *, unsigned long, loff_t);
diff --git a/mm/filemap.c b/mm/filemap.c
index 49a6fe3..90b657b 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1218,26 +1218,6 @@
 }
 EXPORT_SYMBOL(generic_file_aio_read);
 
-int file_send_actor(read_descriptor_t * desc, struct page *page, unsigned long offset, unsigned long size)
-{
-	ssize_t written;
-	unsigned long count = desc->count;
-	struct file *file = desc->arg.data;
-
-	if (size > count)
-		size = count;
-
-	written = file->f_op->sendpage(file, page, offset,
-				       size, &file->f_pos, size<count);
-	if (written < 0) {
-		desc->error = written;
-		written = 0;
-	}
-	desc->count = count - written;
-	desc->written += written;
-	return written;
-}
-
 static ssize_t
 do_readahead(struct address_space *mapping, struct file *filp,
 	     unsigned long index, unsigned long nr)