Merge branch 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block: (149 commits)
  block: make sure that REQ_* types are seen even with CONFIG_BLOCK=n
  xen-blkfront: fix missing out label
  blkdev: fix blkdev_issue_zeroout return value
  block: update request stacking methods to support discards
  block: fix missing export of blk_types.h
  writeback: fix bad _bh spinlock nesting
  drbd: revert "delay probes", feature is being re-implemented differently
  drbd: Initialize all members of sync_conf to their defaults [Bugz 315]
  drbd: Disable delay probes for the upcomming release
  writeback: cleanup bdi_register
  writeback: add new tracepoints
  writeback: remove unnecessary init_timer call
  writeback: optimize periodic bdi thread wakeups
  writeback: prevent unnecessary bdi threads wakeups
  writeback: move bdi threads exiting logic to the forker thread
  writeback: restructure bdi forker loop a little
  writeback: move last_active to bdi
  writeback: do not remove bdi from bdi_list
  writeback: simplify bdi code a little
  writeback: do not lose wake-ups in bdi threads
  ...

Fixed up pretty trivial conflicts in drivers/block/virtio_blk.c and
drivers/scsi/scsi_error.c as per Jens.

3 files changed, 109 insertions, 91 deletions

diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index e3749d0ba68b..af13c62dc473 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -242,6 +242,8 @@
 
 -------------------------------------------------------------------------*/
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #define REVISION "Revision: 3.20"
 #define VERSION "Id: cdrom.c 3.20 2003/12/17"
 
@@ -314,11 +316,17 @@ static const char *mrw_format_status[] = {
 static const char *mrw_address_space[] = { "DMA", "GAA" };
 
 #if (ERRLOGMASK!=CD_NOTHING)
-#define cdinfo(type, fmt, args...) \
-        if ((ERRLOGMASK & type) || debug==1 ) \
-            printk(KERN_INFO "cdrom: " fmt, ## args)
+#define cdinfo(type, fmt, args...)                      \
+do {                                                    \
+        if ((ERRLOGMASK & type) || debug == 1)          \
+                pr_info(fmt, ##args);                   \
+} while (0)
 #else
-#define cdinfo(type, fmt, args...) 
+#define cdinfo(type, fmt, args...)                      \
+do {                                                    \
+        if (0 && (ERRLOGMASK & type) || debug == 1)     \
+                pr_info(fmt, ##args);                   \
+} while (0)
 #endif
 
 /* These are used to simplify getting data in from and back to user land */
@@ -395,7 +403,7 @@ int register_cdrom(struct cdrom_device_info *cdi)
         if (cdo->open == NULL || cdo->release == NULL)
                 return -EINVAL;
         if (!banner_printed) {
-                printk(KERN_INFO "Uniform CD-ROM driver " REVISION "\n");
+                pr_info("Uniform CD-ROM driver " REVISION "\n");
                 banner_printed = 1;
                 cdrom_sysctl_register();
         }
@@ -546,7 +554,7 @@ static int cdrom_mrw_bgformat(struct cdrom_device_info *cdi, int cont)
         unsigned char buffer[12];
         int ret;
 
-        printk(KERN_INFO "cdrom: %sstarting format\n", cont ? "Re" : "");
+        pr_info("%sstarting format\n", cont ? "Re" : "");
 
         /*
          * FmtData bit set (bit 4), format type is 1
@@ -576,7 +584,7 @@ static int cdrom_mrw_bgformat(struct cdrom_device_info *cdi, int cont)
 
         ret = cdi->ops->generic_packet(cdi, &cgc);
         if (ret)
-                printk(KERN_INFO "cdrom: bgformat failed\n");
+                pr_info("bgformat failed\n");
 
         return ret;
 }
@@ -622,8 +630,7 @@ static int cdrom_mrw_exit(struct cdrom_device_info *cdi)
 
         ret = 0;
         if (di.mrw_status == CDM_MRW_BGFORMAT_ACTIVE) {
-                printk(KERN_INFO "cdrom: issuing MRW back ground "
-                                "format suspend\n");
+                pr_info("issuing MRW background format suspend\n");
                 ret = cdrom_mrw_bgformat_susp(cdi, 0);
         }
 
@@ -658,7 +665,8 @@ static int cdrom_mrw_set_lba_space(struct cdrom_device_info *cdi, int space)
         if ((ret = cdrom_mode_select(cdi, &cgc)))
                 return ret;
 
-        printk(KERN_INFO "cdrom: %s: mrw address space %s selected\n", cdi->name, mrw_address_space[space]);
+        pr_info("%s: mrw address space %s selected\n",
+                cdi->name, mrw_address_space[space]);
         return 0;
 }
 
@@ -762,7 +770,7 @@ static int cdrom_mrw_open_write(struct cdrom_device_info *cdi)
          * always reset to DMA lba space on open
          */
         if (cdrom_mrw_set_lba_space(cdi, MRW_LBA_DMA)) {
-                printk(KERN_ERR "cdrom: failed setting lba address space\n");
+                pr_err("failed setting lba address space\n");
                 return 1;
         }
 
@@ -781,8 +789,7 @@ static int cdrom_mrw_open_write(struct cdrom_device_info *cdi)
          * 3    -       MRW formatting complete
          */
         ret = 0;
-        printk(KERN_INFO "cdrom open: mrw_status '%s'\n",
-                        mrw_format_status[di.mrw_status]);
+        pr_info("open: mrw_status '%s'\n", mrw_format_status[di.mrw_status]);
         if (!di.mrw_status)
                 ret = 1;
         else if (di.mrw_status == CDM_MRW_BGFORMAT_INACTIVE &&
@@ -932,8 +939,7 @@ static void cdrom_dvd_rw_close_write(struct cdrom_device_info *cdi)
                 return;
         }
 
-        printk(KERN_INFO "cdrom: %s: dirty DVD+RW media, \"finalizing\"\n",
-               cdi->name);
+        pr_info("%s: dirty DVD+RW media, \"finalizing\"\n", cdi->name);
 
         init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
         cgc.cmd[0] = GPCMD_FLUSH_CACHE;
@@ -2176,7 +2182,7 @@ retry:
          * frame dma, so drop to single frame dma if we need to
          */
         if (cdi->cdda_method == CDDA_BPC_FULL && nframes > 1) {
-                printk("cdrom: dropping to single frame dma\n");
+                pr_info("dropping to single frame dma\n");
                 cdi->cdda_method = CDDA_BPC_SINGLE;
                 goto retry;
         }
@@ -2189,7 +2195,7 @@ retry:
         if (cdi->last_sense != 0x04 && cdi->last_sense != 0x0b)
                 return ret;
 
-        printk("cdrom: dropping to old style cdda (sense=%x)\n", cdi->last_sense);
+        pr_info("dropping to old style cdda (sense=%x)\n", cdi->last_sense);
         cdi->cdda_method = CDDA_OLD;
         return cdrom_read_cdda_old(cdi, ubuf, lba, nframes);    
 }
@@ -3401,7 +3407,7 @@ static int cdrom_print_info(const char *header, int val, char *info,
                                         "\t%d", CDROM_CAN(val) != 0);
                         break;
                 default:
-                        printk(KERN_INFO "cdrom: invalid option%d\n", option);
+                        pr_info("invalid option%d\n", option);
                         return 1;
                 }
                 if (!ret)
@@ -3491,7 +3497,7 @@ doit:
         mutex_unlock(&cdrom_mutex);
         return proc_dostring(ctl, write, buffer, lenp, ppos);
 done:
-        printk(KERN_INFO "cdrom: info buffer too small\n");
+        pr_info("info buffer too small\n");
         goto doit;
 }
 
@@ -3665,7 +3671,7 @@ static int __init cdrom_init(void)
 
 static void __exit cdrom_exit(void)
 {
-        printk(KERN_INFO "Uniform CD-ROM driver unloaded\n");
+        pr_info("Uniform CD-ROM driver unloaded\n");
         cdrom_sysctl_unregister();
 }
 
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c
index 03c71f7698cb..261107d1457c 100644
--- a/drivers/cdrom/gdrom.c
+++ b/drivers/cdrom/gdrom.c
@@ -19,6 +19,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/fs.h>
@@ -32,6 +34,7 @@
 #include <linux/blkdev.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
+#include <linux/smp_lock.h>
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 #include <linux/platform_device.h>
@@ -339,8 +342,7 @@ static int gdrom_get_last_session(struct cdrom_device_info *cd_info,
                 tocuse = 0;
                 err = gdrom_readtoc_cmd(gd.toc, 0);
                 if (err) {
-                        printk(KERN_INFO "GDROM: Could not get CD "
-                                "table of contents\n");
+                        pr_info("Could not get CD table of contents\n");
                         return -ENXIO;
                 }
         }
@@ -357,8 +359,7 @@ static int gdrom_get_last_session(struct cdrom_device_info *cd_info,
         } while (track >= fentry);
 
         if ((track > 100) || (track < get_entry_track(gd.toc->first))) {
-                printk(KERN_INFO "GDROM: No data on the last "
-                        "session of the CD\n");
+                pr_info("No data on the last session of the CD\n");
                 gdrom_getsense(NULL);
                 return -ENXIO;
         }
@@ -451,14 +452,14 @@ static int gdrom_getsense(short *bufstring)
                 goto cleanup_sense;
         insw(GDROM_DATA_REG, &sense, sense_command->buflen/2);
         if (sense[1] & 40) {
-                printk(KERN_INFO "GDROM: Drive not ready - command aborted\n");
+                pr_info("Drive not ready - command aborted\n");
                 goto cleanup_sense;
         }
         sense_key = sense[1] & 0x0F;
         if (sense_key < ARRAY_SIZE(sense_texts))
-                printk(KERN_INFO "GDROM: %s\n", sense_texts[sense_key].text);
+                pr_info("%s\n", sense_texts[sense_key].text);
         else
-                printk(KERN_ERR "GDROM: Unknown sense key: %d\n", sense_key);
+                pr_err("Unknown sense key: %d\n", sense_key);
         if (bufstring) /* return addional sense data */
                 memcpy(bufstring, &sense[4], 2);
         if (sense_key < 2)
@@ -492,12 +493,18 @@ static struct cdrom_device_ops gdrom_ops = {
 
 static int gdrom_bdops_open(struct block_device *bdev, fmode_t mode)
 {
-        return cdrom_open(gd.cd_info, bdev, mode);
+        int ret;
+        lock_kernel();
+        ret = cdrom_open(gd.cd_info, bdev, mode);
+        unlock_kernel();
+        return ret;
 }
 
 static int gdrom_bdops_release(struct gendisk *disk, fmode_t mode)
 {
+        lock_kernel();
         cdrom_release(gd.cd_info, mode);
+        unlock_kernel();
         return 0;
 }
 
@@ -509,7 +516,13 @@ static int gdrom_bdops_mediachanged(struct gendisk *disk)
 static int gdrom_bdops_ioctl(struct block_device *bdev, fmode_t mode,
         unsigned cmd, unsigned long arg)
 {
-        return cdrom_ioctl(gd.cd_info, bdev, mode, cmd, arg);
+        int ret;
+
+        lock_kernel();
+        ret = cdrom_ioctl(gd.cd_info, bdev, mode, cmd, arg);
+        unlock_kernel();
+
+        return ret;
 }
 
 static const struct block_device_operations gdrom_bdops = {
@@ -517,7 +530,7 @@ static const struct block_device_operations gdrom_bdops = {
         .open                   = gdrom_bdops_open,
         .release                = gdrom_bdops_release,
         .media_changed          = gdrom_bdops_mediachanged,
-        .locked_ioctl           = gdrom_bdops_ioctl,
+        .ioctl                  = gdrom_bdops_ioctl,
 };
 
 static irqreturn_t gdrom_command_interrupt(int irq, void *dev_id)
@@ -643,14 +656,13 @@ static void gdrom_request(struct request_queue *rq)
         struct request *req;
 
         while ((req = blk_fetch_request(rq)) != NULL) {
-                if (!blk_fs_request(req)) {
-                        printk(KERN_DEBUG "GDROM: Non-fs request ignored\n");
+                if (req->cmd_type != REQ_TYPE_FS) {
+                        printk(KERN_DEBUG "gdrom: Non-fs request ignored\n");
                         __blk_end_request_all(req, -EIO);
                         continue;
                 }
                 if (rq_data_dir(req) != READ) {
-                        printk(KERN_NOTICE "GDROM: Read only device -");
-                        printk(" write request ignored\n");
+                        pr_notice("Read only device - write request ignored\n");
                         __blk_end_request_all(req, -EIO);
                         continue;
                 }
@@ -685,7 +697,7 @@ static int __devinit gdrom_outputversion(void)
         firmw_ver = kstrndup(id->firmver, 16, GFP_KERNEL);
         if (!firmw_ver)
                 goto free_manuf_name;
-        printk(KERN_INFO "GDROM: %s from %s with firmware %s\n",
+        pr_info("%s from %s with firmware %s\n",
                 model_name, manuf_name, firmw_ver);
         err = 0;
         kfree(firmw_ver);
@@ -757,7 +769,7 @@ static int __devinit probe_gdrom(struct platform_device *devptr)
         int err;
         /* Start the device */
         if (gdrom_execute_diagnostic() != 1) {
-                printk(KERN_WARNING "GDROM: ATA Probe for GDROM failed.\n");
+                pr_warning("ATA Probe for GDROM failed\n");
                 return -ENODEV;
         }
         /* Print out firmware ID */
@@ -767,7 +779,7 @@ static int __devinit probe_gdrom(struct platform_device *devptr)
         gdrom_major = register_blkdev(0, GDROM_DEV_NAME);
         if (gdrom_major <= 0)
                 return gdrom_major;
-        printk(KERN_INFO "GDROM: Registered with major number %d\n",
+        pr_info("Registered with major number %d\n",
                 gdrom_major);
         /* Specify basic properties of drive */
         gd.cd_info = kzalloc(sizeof(struct cdrom_device_info), GFP_KERNEL);
@@ -818,7 +830,7 @@ probe_fail_no_disk:
         unregister_blkdev(gdrom_major, GDROM_DEV_NAME);
         gdrom_major = 0;
 probe_fail_no_mem:
-        printk(KERN_WARNING "GDROM: Probe failed - error is 0x%X\n", err);
+        pr_warning("Probe failed - error is 0x%X\n", err);
         return err;
 }
 
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index 451cd7071b1d..56bf9f44700c 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -31,6 +31,8 @@
  * the OS/400 partition.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/major.h>
 #include <linux/blkdev.h>
 #include <linux/cdrom.h>
@@ -40,6 +42,7 @@
 #include <linux/module.h>
 #include <linux/completion.h>
 #include <linux/proc_fs.h>
+#include <linux/smp_lock.h>
 #include <linux/seq_file.h>
 #include <linux/scatterlist.h>
 
@@ -53,9 +56,6 @@
 
 #define VIOCD_VERS "1.06"
 
-#define VIOCD_KERN_WARNING              KERN_WARNING "viocd: "
-#define VIOCD_KERN_INFO                 KERN_INFO "viocd: "
-
 /*
  * Should probably make this a module parameter....sigh
  */
@@ -154,13 +154,21 @@ static const struct file_operations proc_viocd_operations = {
 static int viocd_blk_open(struct block_device *bdev, fmode_t mode)
 {
         struct disk_info *di = bdev->bd_disk->private_data;
-        return cdrom_open(&di->viocd_info, bdev, mode);
+        int ret;
+
+        lock_kernel();
+        ret = cdrom_open(&di->viocd_info, bdev, mode);
+        unlock_kernel();
+
+        return ret;
 }
 
 static int viocd_blk_release(struct gendisk *disk, fmode_t mode)
 {
         struct disk_info *di = disk->private_data;
+        lock_kernel();
         cdrom_release(&di->viocd_info, mode);
+        unlock_kernel();
         return 0;
 }
 
@@ -168,7 +176,13 @@ static int viocd_blk_ioctl(struct block_device *bdev, fmode_t mode,
                 unsigned cmd, unsigned long arg)
 {
         struct disk_info *di = bdev->bd_disk->private_data;
-        return cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+        int ret;
+
+        lock_kernel();
+        ret = cdrom_ioctl(&di->viocd_info, bdev, mode, cmd, arg);
+        unlock_kernel();
+
+        return ret;
 }
 
 static int viocd_blk_media_changed(struct gendisk *disk)
@@ -181,7 +195,7 @@ static const struct block_device_operations viocd_fops = {
         .owner =                THIS_MODULE,
         .open =                 viocd_blk_open,
         .release =              viocd_blk_release,
-        .locked_ioctl =         viocd_blk_ioctl,
+        .ioctl =                viocd_blk_ioctl,
         .media_changed =        viocd_blk_media_changed,
 };
 
@@ -202,9 +216,8 @@ static int viocd_open(struct cdrom_device_info *cdi, int purpose)
                         (u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
                         0, 0, 0);
         if (hvrc != 0) {
-                printk(VIOCD_KERN_WARNING
-                                "bad rc on HvCallEvent_signalLpEventFast %d\n",
-                                (int)hvrc);
+                pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+                           (int)hvrc);
                 return -EIO;
         }
 
@@ -213,8 +226,8 @@ static int viocd_open(struct cdrom_device_info *cdi, int purpose)
         if (we.rc) {
                 const struct vio_error_entry *err =
                         vio_lookup_rc(viocd_err_table, we.sub_result);
-                printk(VIOCD_KERN_WARNING "bad rc %d:0x%04X on open: %s\n",
-                                we.rc, we.sub_result, err->msg);
+                pr_warning("bad rc %d:0x%04X on open: %s\n",
+                           we.rc, we.sub_result, err->msg);
                 return -err->errno;
         }
 
@@ -234,9 +247,8 @@ static void viocd_release(struct cdrom_device_info *cdi)
                         viopath_targetinst(viopath_hostLp), 0,
                         VIOVERSION << 16, ((u64)device_no << 48), 0, 0, 0);
         if (hvrc != 0)
-                printk(VIOCD_KERN_WARNING
-                                "bad rc on HvCallEvent_signalLpEventFast %d\n",
-                                (int)hvrc);
+                pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+                           (int)hvrc);
 }
 
 /* Send a read or write request to OS/400 */
@@ -262,13 +274,12 @@ static int send_request(struct request *req)
 
         sg_init_table(&sg, 1);
         if (blk_rq_map_sg(req->q, req, &sg) == 0) {
-                printk(VIOCD_KERN_WARNING
-                                "error setting up scatter/gather list\n");
+                pr_warning("error setting up scatter/gather list\n");
                 return -1;
         }
 
         if (dma_map_sg(diskinfo->dev, &sg, 1, direction) == 0) {
-                printk(VIOCD_KERN_WARNING "error allocating sg tce\n");
+                pr_warning("error allocating sg tce\n");
                 return -1;
         }
         dmaaddr = sg_dma_address(&sg);
@@ -284,7 +295,7 @@ static int send_request(struct request *req)
                         ((u64)DEVICE_NR(diskinfo) << 48) | dmaaddr,
                         (u64)blk_rq_pos(req) * 512, len, 0);
         if (hvrc != HvLpEvent_Rc_Good) {
-                printk(VIOCD_KERN_WARNING "hv error on op %d\n", (int)hvrc);
+                pr_warning("hv error on op %d\n", (int)hvrc);
                 return -1;
         }
 
@@ -298,11 +309,10 @@ static void do_viocd_request(struct request_queue *q)
         struct request *req;
 
         while ((rwreq == 0) && ((req = blk_fetch_request(q)) != NULL)) {
-                if (!blk_fs_request(req))
+                if (req->cmd_type != REQ_TYPE_FS)
                         __blk_end_request_all(req, -EIO);
                 else if (send_request(req) < 0) {
-                        printk(VIOCD_KERN_WARNING
-                                        "unable to send message to OS/400!");
+                        pr_warning("unable to send message to OS/400!\n");
                         __blk_end_request_all(req, -EIO);
                 } else
                         rwreq++;
@@ -327,8 +337,8 @@ static int viocd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
                         (u64)&we, VIOVERSION << 16, ((u64)device_no << 48),
                         0, 0, 0);
         if (hvrc != 0) {
-                printk(VIOCD_KERN_WARNING "bad rc on HvCallEvent_signalLpEventFast %d\n",
-                                (int)hvrc);
+                pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+                           (int)hvrc);
                 return -EIO;
         }
 
@@ -338,9 +348,8 @@ static int viocd_media_changed(struct cdrom_device_info *cdi, int disc_nr)
         if (we.rc) {
                 const struct vio_error_entry *err =
                         vio_lookup_rc(viocd_err_table, we.sub_result);
-                printk(VIOCD_KERN_WARNING
-                                "bad rc %d:0x%04X on check_change: %s; Assuming no change\n",
-                                we.rc, we.sub_result, err->msg);
+                pr_warning("bad rc %d:0x%04X on check_change: %s; Assuming no change\n",
+                           we.rc, we.sub_result, err->msg);
                 return 0;
         }
 
@@ -367,8 +376,8 @@ static int viocd_lock_door(struct cdrom_device_info *cdi, int locking)
                         (u64)&we, VIOVERSION << 16,
                         (device_no << 48) | (flags << 32), 0, 0, 0);
         if (hvrc != 0) {
-                printk(VIOCD_KERN_WARNING "bad rc on HvCallEvent_signalLpEventFast %d\n",
-                                (int)hvrc);
+                pr_warning("bad rc on HvCallEvent_signalLpEventFast %d\n",
+                           (int)hvrc);
                 return -EIO;
         }
 
@@ -455,8 +464,7 @@ static void vio_handle_cd_event(struct HvLpEvent *event)
                 return;
         /* First, we should NEVER get an int here...only acks */
         if (hvlpevent_is_int(event)) {
-                printk(VIOCD_KERN_WARNING
-                                "Yikes! got an int in viocd event handler!\n");
+                pr_warning("Yikes! got an int in viocd event handler!\n");
                 if (hvlpevent_need_ack(event)) {
                         event->xRc = HvLpEvent_Rc_InvalidSubtype;
                         HvCallEvent_ackLpEvent(event);
@@ -510,10 +518,9 @@ return_complete:
                         const struct vio_error_entry *err =
                                 vio_lookup_rc(viocd_err_table,
                                                 bevent->sub_result);
-                        printk(VIOCD_KERN_WARNING "request %p failed "
-                                        "with rc %d:0x%04X: %s\n",
-                                        req, event->xRc,
-                                        bevent->sub_result, err->msg);
+                        pr_warning("request %p failed with rc %d:0x%04X: %s\n",
+                                   req, event->xRc,
+                                   bevent->sub_result, err->msg);
                         __blk_end_request_all(req, -EIO);
                 } else
                         __blk_end_request_all(req, 0);
@@ -524,9 +531,8 @@ return_complete:
                 break;
 
         default:
-                printk(VIOCD_KERN_WARNING
-                                "message with invalid subtype %0x04X!\n",
-                                event->xSubtype & VIOMINOR_SUBTYPE_MASK);
+                pr_warning("message with invalid subtype %0x04X!\n",
+                           event->xSubtype & VIOMINOR_SUBTYPE_MASK);
                 if (hvlpevent_need_ack(event)) {
                         event->xRc = HvLpEvent_Rc_InvalidSubtype;
                         HvCallEvent_ackLpEvent(event);
@@ -593,23 +599,19 @@ static int viocd_probe(struct vio_dev *vdev, const struct vio_device_id *id)
         sprintf(c->name, VIOCD_DEVICE "%c", 'a' + deviceno);
 
         if (register_cdrom(c) != 0) {
-                printk(VIOCD_KERN_WARNING "Cannot register viocd CD-ROM %s!\n",
-                                c->name);
+                pr_warning("Cannot register viocd CD-ROM %s!\n", c->name);
                 goto out;
         }
-        printk(VIOCD_KERN_INFO "cd %s is iSeries resource %10.10s "
-                        "type %4.4s, model %3.3s\n",
-                        c->name, d->rsrcname, d->type, d->model);
+        pr_info("cd %s is iSeries resource %10.10s type %4.4s, model %3.3s\n",
+                c->name, d->rsrcname, d->type, d->model);
         q = blk_init_queue(do_viocd_request, &viocd_reqlock);
         if (q == NULL) {
-                printk(VIOCD_KERN_WARNING "Cannot allocate queue for %s!\n",
-                                c->name);
+                pr_warning("Cannot allocate queue for %s!\n", c->name);
                 goto out_unregister_cdrom;
         }
         gendisk = alloc_disk(1);
         if (gendisk == NULL) {
-                printk(VIOCD_KERN_WARNING "Cannot create gendisk for %s!\n",
-                                c->name);
+                pr_warning("Cannot create gendisk for %s!\n", c->name);
                 goto out_cleanup_queue;
         }
         gendisk->major = VIOCD_MAJOR;
@@ -682,21 +684,19 @@ static int __init viocd_init(void)
                         return -ENODEV;
         }
 
-        printk(VIOCD_KERN_INFO "vers " VIOCD_VERS ", hosting partition %d\n",
-                        viopath_hostLp);
+        pr_info("vers " VIOCD_VERS ", hosting partition %d\n", viopath_hostLp);
 
         if (register_blkdev(VIOCD_MAJOR, VIOCD_DEVICE) != 0) {
-                printk(VIOCD_KERN_WARNING "Unable to get major %d for %s\n",
-                                VIOCD_MAJOR, VIOCD_DEVICE);
+                pr_warning("Unable to get major %d for %s\n",
+                           VIOCD_MAJOR, VIOCD_DEVICE);
                 return -EIO;
         }
 
         ret = viopath_open(viopath_hostLp, viomajorsubtype_cdio,
                         MAX_CD_REQ + 2);
         if (ret) {
-                printk(VIOCD_KERN_WARNING
-                                "error opening path to host partition %d\n",
-                                viopath_hostLp);
+                pr_warning("error opening path to host partition %d\n",
+                           viopath_hostLp);
                 goto out_unregister;
         }