*
* i/o controls for the dasd driver.
*/
-#include <linux/config.h>
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/fs.h>
static int
dasd_ioctl_enable(struct block_device *bdev)
{
- struct dasd_device *device = bdev->bd_disk->private_data;
+ struct dasd_block *block = bdev->bd_disk->private_data;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- dasd_enable_device(device);
+ dasd_enable_device(block->base);
/* Formatting the dasd device can change the capacity. */
mutex_lock(&bdev->bd_mutex);
- i_size_write(bdev->bd_inode, (loff_t)get_capacity(device->gdp) << 9);
+ i_size_write(bdev->bd_inode, (loff_t)get_capacity(block->gdp) << 9);
mutex_unlock(&bdev->bd_mutex);
return 0;
}
static int
dasd_ioctl_disable(struct block_device *bdev)
{
- struct dasd_device *device = bdev->bd_disk->private_data;
+ struct dasd_block *block = bdev->bd_disk->private_data;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
* using the BIODASDFMT ioctl. Therefore the correct state for the
* device is DASD_STATE_BASIC that allows to do basic i/o.
*/
- dasd_set_target_state(device, DASD_STATE_BASIC);
+ dasd_set_target_state(block->base, DASD_STATE_BASIC);
/*
* Set i_size to zero, since read, write, etc. check against this
* value.
/*
* Quiesce device.
*/
-static int
-dasd_ioctl_quiesce(struct dasd_device *device)
+static int dasd_ioctl_quiesce(struct dasd_block *block)
{
unsigned long flags;
+ struct dasd_device *base;
+ base = block->base;
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
- DEV_MESSAGE (KERN_DEBUG, device, "%s",
- "Quiesce IO on device");
- spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
- device->stopped |= DASD_STOPPED_QUIESCE;
- spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
+ DEV_MESSAGE(KERN_DEBUG, base, "%s", "Quiesce IO on device");
+ spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
+ base->stopped |= DASD_STOPPED_QUIESCE;
+ spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
return 0;
}
/*
* Quiesce device.
*/
-static int
-dasd_ioctl_resume(struct dasd_device *device)
+static int dasd_ioctl_resume(struct dasd_block *block)
{
unsigned long flags;
+ struct dasd_device *base;
+ base = block->base;
if (!capable (CAP_SYS_ADMIN))
return -EACCES;
- DEV_MESSAGE (KERN_DEBUG, device, "%s",
- "resume IO on device");
-
- spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
- device->stopped &= ~DASD_STOPPED_QUIESCE;
- spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
+ DEV_MESSAGE(KERN_DEBUG, base, "%s", "resume IO on device");
+ spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
+ base->stopped &= ~DASD_STOPPED_QUIESCE;
+ spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
- dasd_schedule_bh (device);
+ dasd_schedule_block_bh(block);
return 0;
}
* commands to format a single unit of the device. In terms of the ECKD
* devices this means CCWs are generated to format a single track.
*/
-static int
-dasd_format(struct dasd_device * device, struct format_data_t * fdata)
+static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
{
struct dasd_ccw_req *cqr;
+ struct dasd_device *base;
int rc;
- if (device->discipline->format_device == NULL)
+ base = block->base;
+ if (base->discipline->format_device == NULL)
return -EPERM;
- if (device->state != DASD_STATE_BASIC) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ if (base->state != DASD_STATE_BASIC) {
+ DEV_MESSAGE(KERN_WARNING, base, "%s",
"dasd_format: device is not disabled! ");
return -EBUSY;
}
- DBF_DEV_EVENT(DBF_NOTICE, device,
+ DBF_DEV_EVENT(DBF_NOTICE, base,
"formatting units %d to %d (%d B blocks) flags %d",
fdata->start_unit,
fdata->stop_unit, fdata->blksize, fdata->intensity);
* enabling the device later.
*/
if (fdata->start_unit == 0) {
- struct block_device *bdev = bdget_disk(device->gdp, 0);
+ struct block_device *bdev = bdget_disk(block->gdp, 0);
bdev->bd_inode->i_blkbits = blksize_bits(fdata->blksize);
bdput(bdev);
}
while (fdata->start_unit <= fdata->stop_unit) {
- cqr = device->discipline->format_device(device, fdata);
+ cqr = base->discipline->format_device(base, fdata);
if (IS_ERR(cqr))
return PTR_ERR(cqr);
rc = dasd_sleep_on_interruptible(cqr);
- dasd_sfree_request(cqr, cqr->device);
+ dasd_sfree_request(cqr, cqr->memdev);
if (rc) {
if (rc != -ERESTARTSYS)
- DEV_MESSAGE(KERN_ERR, device,
+ DEV_MESSAGE(KERN_ERR, base,
" Formatting of unit %d failed "
"with rc = %d",
fdata->start_unit, rc);
static int
dasd_ioctl_format(struct block_device *bdev, void __user *argp)
{
- struct dasd_device *device = bdev->bd_disk->private_data;
+ struct dasd_block *block = bdev->bd_disk->private_data;
struct format_data_t fdata;
if (!capable(CAP_SYS_ADMIN))
if (!argp)
return -EINVAL;
- if (device->features & DASD_FEATURE_READONLY)
+ if (block->base->features & DASD_FEATURE_READONLY)
return -EROFS;
if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
return -EFAULT;
if (bdev != bdev->bd_contains) {
- DEV_MESSAGE(KERN_WARNING, device, "%s",
+ DEV_MESSAGE(KERN_WARNING, block->base, "%s",
"Cannot low-level format a partition");
return -EINVAL;
}
- return dasd_format(device, &fdata);
+ return dasd_format(block, &fdata);
}
#ifdef CONFIG_DASD_PROFILE
/*
* Reset device profile information
*/
-static int
-dasd_ioctl_reset_profile(struct dasd_device *device)
+static int dasd_ioctl_reset_profile(struct dasd_block *block)
{
- memset(&device->profile, 0, sizeof (struct dasd_profile_info_t));
+ memset(&block->profile, 0, sizeof(struct dasd_profile_info_t));
return 0;
}
/*
* Return device profile information
*/
-static int
-dasd_ioctl_read_profile(struct dasd_device *device, void __user *argp)
+static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
{
if (dasd_profile_level == DASD_PROFILE_OFF)
return -EIO;
- if (copy_to_user(argp, &device->profile,
- sizeof (struct dasd_profile_info_t)))
+ if (copy_to_user(argp, &block->profile,
+ sizeof(struct dasd_profile_info_t)))
return -EFAULT;
return 0;
}
#else
-static int
-dasd_ioctl_reset_profile(struct dasd_device *device)
+static int dasd_ioctl_reset_profile(struct dasd_block *block)
{
return -ENOSYS;
}
-static int
-dasd_ioctl_read_profile(struct dasd_device *device, void __user *argp)
+static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
{
return -ENOSYS;
}
/*
* Return dasd information. Used for BIODASDINFO and BIODASDINFO2.
*/
-static int
-dasd_ioctl_information(struct dasd_device *device,
- unsigned int cmd, void __user *argp)
+static int dasd_ioctl_information(struct dasd_block *block,
+ unsigned int cmd, void __user *argp)
{
struct dasd_information2_t *dasd_info;
unsigned long flags;
int rc;
+ struct dasd_device *base;
struct ccw_device *cdev;
+ struct ccw_dev_id dev_id;
- if (!device->discipline->fill_info)
+ base = block->base;
+ if (!base->discipline->fill_info)
return -EINVAL;
dasd_info = kzalloc(sizeof(struct dasd_information2_t), GFP_KERNEL);
if (dasd_info == NULL)
return -ENOMEM;
- rc = device->discipline->fill_info(device, dasd_info);
+ rc = base->discipline->fill_info(base, dasd_info);
if (rc) {
kfree(dasd_info);
return rc;
}
- cdev = device->cdev;
+ cdev = base->cdev;
+ ccw_device_get_id(cdev, &dev_id);
- dasd_info->devno = _ccw_device_get_device_number(device->cdev);
- dasd_info->schid = _ccw_device_get_subchannel_number(device->cdev);
+ dasd_info->devno = dev_id.devno;
+ dasd_info->schid = _ccw_device_get_subchannel_number(base->cdev);
dasd_info->cu_type = cdev->id.cu_type;
dasd_info->cu_model = cdev->id.cu_model;
dasd_info->dev_type = cdev->id.dev_type;
dasd_info->dev_model = cdev->id.dev_model;
- dasd_info->status = device->state;
+ dasd_info->status = base->state;
/*
* The open_count is increased for every opener, that includes
* the blkdev_get in dasd_scan_partitions.
* This must be hidden from user-space.
*/
- dasd_info->open_count = atomic_read(&device->open_count);
- if (!device->bdev)
+ dasd_info->open_count = atomic_read(&block->open_count);
+ if (!block->bdev)
dasd_info->open_count++;
/*
* check if device is really formatted
* LDL / CDL was returned by 'fill_info'
*/
- if ((device->state < DASD_STATE_READY) ||
- (dasd_check_blocksize(device->bp_block)))
+ if ((base->state < DASD_STATE_READY) ||
+ (dasd_check_blocksize(block->bp_block)))
dasd_info->format = DASD_FORMAT_NONE;
dasd_info->features |=
- ((device->features & DASD_FEATURE_READONLY) != 0);
+ ((base->features & DASD_FEATURE_READONLY) != 0);
- if (device->discipline)
- memcpy(dasd_info->type, device->discipline->name, 4);
+ if (base->discipline)
+ memcpy(dasd_info->type, base->discipline->name, 4);
else
memcpy(dasd_info->type, "none", 4);
- if (device->request_queue->request_fn) {
+ if (block->request_queue->request_fn) {
struct list_head *l;
#ifdef DASD_EXTENDED_PROFILING
{
struct list_head *l;
- spin_lock_irqsave(&device->lock, flags);
- list_for_each(l, &device->request_queue->queue_head)
+ spin_lock_irqsave(&block->lock, flags);
+ list_for_each(l, &block->request_queue->queue_head)
dasd_info->req_queue_len++;
- spin_unlock_irqrestore(&device->lock, flags);
+ spin_unlock_irqrestore(&block->lock, flags);
}
#endif /* DASD_EXTENDED_PROFILING */
- spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
- list_for_each(l, &device->ccw_queue)
+ spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
+ list_for_each(l, &base->ccw_queue)
dasd_info->chanq_len++;
- spin_unlock_irqrestore(get_ccwdev_lock(device->cdev),
+ spin_unlock_irqrestore(get_ccwdev_lock(base->cdev),
flags);
}
rc = 0;
if (copy_to_user(argp, dasd_info,
((cmd == (unsigned int) BIODASDINFO2) ?
- sizeof (struct dasd_information2_t) :
- sizeof (struct dasd_information_t))))
+ sizeof(struct dasd_information2_t) :
+ sizeof(struct dasd_information_t))))
rc = -EFAULT;
kfree(dasd_info);
return rc;
static int
dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
{
- struct dasd_device *device = bdev->bd_disk->private_data;
+ struct dasd_block *block = bdev->bd_disk->private_data;
int intval;
if (!capable(CAP_SYS_ADMIN))
if (bdev != bdev->bd_contains)
// ro setting is not allowed for partitions
return -EINVAL;
- if (get_user(intval, (int *)argp))
+ if (get_user(intval, (int __user *)argp))
return -EFAULT;
set_disk_ro(bdev->bd_disk, intval);
- return dasd_set_feature(device->cdev, DASD_FEATURE_READONLY, intval);
+ return dasd_set_feature(block->base->cdev, DASD_FEATURE_READONLY, intval);
}
-static int
-dasd_ioctl_readall_cmb(struct dasd_device *device, unsigned int cmd,
+static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
unsigned long arg)
{
struct cmbdata __user *argp = (void __user *) arg;
struct cmbdata data;
int ret;
- ret = cmf_readall(device->cdev, &data);
+ ret = cmf_readall(block->base->cdev, &data);
if (!ret && copy_to_user(argp, &data, min(size, sizeof(*argp))))
return -EFAULT;
return ret;
unsigned int cmd, unsigned long arg)
{
struct block_device *bdev = inode->i_bdev;
- struct dasd_device *device = bdev->bd_disk->private_data;
+ struct dasd_block *block = bdev->bd_disk->private_data;
void __user *argp = (void __user *)arg;
- if (!device)
+ if (!block)
return -ENODEV;
if ((_IOC_DIR(cmd) != _IOC_NONE) && !arg) {
case BIODASDENABLE:
return dasd_ioctl_enable(bdev);
case BIODASDQUIESCE:
- return dasd_ioctl_quiesce(device);
+ return dasd_ioctl_quiesce(block);
case BIODASDRESUME:
- return dasd_ioctl_resume(device);
+ return dasd_ioctl_resume(block);
case BIODASDFMT:
return dasd_ioctl_format(bdev, argp);
case BIODASDINFO:
- return dasd_ioctl_information(device, cmd, argp);
+ return dasd_ioctl_information(block, cmd, argp);
case BIODASDINFO2:
- return dasd_ioctl_information(device, cmd, argp);
+ return dasd_ioctl_information(block, cmd, argp);
case BIODASDPRRD:
- return dasd_ioctl_read_profile(device, argp);
+ return dasd_ioctl_read_profile(block, argp);
case BIODASDPRRST:
- return dasd_ioctl_reset_profile(device);
+ return dasd_ioctl_reset_profile(block);
case BLKROSET:
return dasd_ioctl_set_ro(bdev, argp);
case DASDAPIVER:
return dasd_ioctl_api_version(argp);
case BIODASDCMFENABLE:
- return enable_cmf(device->cdev);
+ return enable_cmf(block->base->cdev);
case BIODASDCMFDISABLE:
- return disable_cmf(device->cdev);
+ return disable_cmf(block->base->cdev);
case BIODASDREADALLCMB:
- return dasd_ioctl_readall_cmb(device, cmd, arg);
+ return dasd_ioctl_readall_cmb(block, cmd, arg);
default:
/* if the discipline has an ioctl method try it. */
- if (device->discipline->ioctl) {
- int rval = device->discipline->ioctl(device, cmd, argp);
+ if (block->base->discipline->ioctl) {
+ int rval = block->base->discipline->ioctl(block, cmd, argp);
if (rval != -ENOIOCTLCMD)
return rval;
}
int rval;
lock_kernel();
- rval = dasd_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
+ rval = dasd_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
unlock_kernel();
return (rval == -EINVAL) ? -ENOIOCTLCMD : rval;
git.openpandora.org / pandora-kernel.git / blobdiff