#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/scatterlist.h>
+#include <linux/blktrace_api.h>
#include "scsi.h"
#include <scsi/scsi_dbg.h>
case BLKSECTGET:
return put_user(sdp->device->request_queue->max_sectors * 512,
ip);
+ case BLKTRACESETUP:
+ return blk_trace_setup(sdp->device->request_queue,
+ sdp->disk->disk_name,
+ sdp->device->sdev_gendev.devt,
+ (char *)arg);
+ case BLKTRACESTART:
+ return blk_trace_startstop(sdp->device->request_queue, 1);
+ case BLKTRACESTOP:
+ return blk_trace_startstop(sdp->device->request_queue, 0);
+ case BLKTRACETEARDOWN:
+ return blk_trace_remove(sdp->device->request_queue);
default:
if (read_only)
return -EPERM; /* don't know so take safe approach */
MKDEV(SCSI_GENERIC_MAJOR, sdp->index),
cl_dev->dev, "%s",
disk->disk_name);
- if (IS_ERR(sg_class_member))
- printk(KERN_WARNING "sg_add: "
- "class_device_create failed\n");
+ if (IS_ERR(sg_class_member)) {
+ printk(KERN_ERR "sg_add: "
+ "class_device_create failed\n");
+ error = PTR_ERR(sg_class_member);
+ goto cdev_add_err;
+ }
class_set_devdata(sg_class_member, sdp);
- error = sysfs_create_link(&scsidp->sdev_gendev.kobj,
+ error = sysfs_create_link(&scsidp->sdev_gendev.kobj,
&sg_class_member->kobj, "generic");
if (error)
printk(KERN_ERR "sg_add: unable to make symlink "
static int
sg_last_dev(void)
{
- int k = 0;
+ int k = -1;
unsigned long iflags;
read_lock_irqsave(&sg_index_lock, iflags);