static mempool_t *psd_pool;
static struct class *class_pktcdvd = NULL; /* /sys/class/pktcdvd */
-static struct dentry *pkt_debugfs_root = NULL; /* /debug/pktcdvd */
+static struct dentry *pkt_debugfs_root = NULL; /* /sys/kernel/debug/pktcdvd */
/* forward declaration */
static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev);
static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
{
if (class_pktcdvd) {
- pd->dev = device_create(class_pktcdvd, NULL, pd->pkt_dev, "%s", pd->name);
+ pd->dev = device_create(class_pktcdvd, NULL, MKDEV(0, 0), NULL,
+ "%s", pd->name);
if (IS_ERR(pd->dev))
pd->dev = NULL;
}
/********************************************************************
entries in debugfs
- /debugfs/pktcdvd[0-7]/
+ /sys/kernel/debug/pktcdvd[0-7]/
info
*******************************************************************/
rq->cmd_len = COMMAND_SIZE(cgc->cmd[0]);
memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
- if (sizeof(rq->cmd) > CDROM_PACKET_SIZE)
- memset(rq->cmd + CDROM_PACKET_SIZE, 0, sizeof(rq->cmd) - CDROM_PACKET_SIZE);
rq->timeout = 60*HZ;
rq->cmd_type = REQ_TYPE_BLOCK_PC;
/*
* speed is given as the normal factor, e.g. 4 for 4x
*/
-static int pkt_set_speed(struct pktcdvd_device *pd, unsigned write_speed, unsigned read_speed)
+static noinline_for_stack int pkt_set_speed(struct pktcdvd_device *pd,
+ unsigned write_speed, unsigned read_speed)
{
struct packet_command cgc;
struct request_sense sense;
*/
static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q)
{
- if ((pd->settings.size << 9) / CD_FRAMESIZE <= q->max_phys_segments) {
+ if ((pd->settings.size << 9) / CD_FRAMESIZE
+ <= queue_max_phys_segments(q)) {
/*
* The cdrom device can handle one segment/frame
*/
clear_bit(PACKET_MERGE_SEGS, &pd->flags);
return 0;
- } else if ((pd->settings.size << 9) / PAGE_SIZE <= q->max_phys_segments) {
+ } else if ((pd->settings.size << 9) / PAGE_SIZE
+ <= queue_max_phys_segments(q)) {
/*
* We can handle this case at the expense of some extra memory
* copies during write operations
wakeup = (pd->write_congestion_on > 0
&& pd->bio_queue_size <= pd->write_congestion_off);
spin_unlock(&pd->lock);
- if (wakeup)
- clear_bdi_congested(&pd->disk->queue->backing_dev_info, WRITE);
+ if (wakeup) {
+ clear_bdi_congested(&pd->disk->queue->backing_dev_info,
+ BLK_RW_ASYNC);
+ }
pkt->sleep_time = max(PACKET_WAIT_TIME, 1);
pkt_set_state(pkt, PACKET_WAITING_STATE);
return pkt_generic_packet(pd, &cgc);
}
-static int pkt_get_last_written(struct pktcdvd_device *pd, long *last_written)
+static noinline_for_stack int pkt_get_last_written(struct pktcdvd_device *pd,
+ long *last_written)
{
disc_information di;
track_information ti;
/*
* write mode select package based on pd->settings
*/
-static int pkt_set_write_settings(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
{
struct packet_command cgc;
struct request_sense sense;
return 1;
}
-static int pkt_probe_settings(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
{
struct packet_command cgc;
unsigned char buf[12];
/*
* enable/disable write caching on drive
*/
-static int pkt_write_caching(struct pktcdvd_device *pd, int set)
+static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
+ int set)
{
struct packet_command cgc;
struct request_sense sense;
unsigned char buf[64];
int ret;
- memset(buf, 0, sizeof(buf));
init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
cgc.sense = &sense;
cgc.buflen = pd->mode_offset + 12;
/*
* Returns drive maximum write speed
*/
-static int pkt_get_max_speed(struct pktcdvd_device *pd, unsigned *write_speed)
+static noinline_for_stack int pkt_get_max_speed(struct pktcdvd_device *pd,
+ unsigned *write_speed)
{
struct packet_command cgc;
struct request_sense sense;
unsigned char *cap_buf;
int ret, offset;
- memset(buf, 0, sizeof(buf));
cap_buf = &buf[sizeof(struct mode_page_header) + pd->mode_offset];
init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_UNKNOWN);
cgc.sense = &sense;
/*
* reads the maximum media speed from ATIP
*/
-static int pkt_media_speed(struct pktcdvd_device *pd, unsigned *speed)
+static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
+ unsigned *speed)
{
struct packet_command cgc;
struct request_sense sense;
}
}
-static int pkt_perform_opc(struct pktcdvd_device *pd)
+static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
{
struct packet_command cgc;
struct request_sense sense;
/*
* called at open time.
*/
-static int pkt_open_dev(struct pktcdvd_device *pd, int write)
+static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
{
int ret;
long lba;
* so bdget() can't fail.
*/
bdget(pd->bdev->bd_dev);
- if ((ret = blkdev_get(pd->bdev, FMODE_READ, O_RDONLY)))
+ if ((ret = blkdev_get(pd->bdev, FMODE_READ)))
goto out;
if ((ret = bd_claim(pd->bdev, pd)))
out_unclaim:
bd_release(pd->bdev);
out_putdev:
- blkdev_put(pd->bdev);
+ blkdev_put(pd->bdev, FMODE_READ);
out:
return ret;
}
pkt_set_speed(pd, MAX_SPEED, MAX_SPEED);
bd_release(pd->bdev);
- blkdev_put(pd->bdev);
+ blkdev_put(pd->bdev, FMODE_READ);
pkt_shrink_pktlist(pd);
}
return pkt_devs[dev_minor];
}
-static int pkt_open(struct inode *inode, struct file *file)
+static int pkt_open(struct block_device *bdev, fmode_t mode)
{
struct pktcdvd_device *pd = NULL;
int ret;
VPRINTK(DRIVER_NAME": entering open\n");
mutex_lock(&ctl_mutex);
- pd = pkt_find_dev_from_minor(iminor(inode));
+ pd = pkt_find_dev_from_minor(MINOR(bdev->bd_dev));
if (!pd) {
ret = -ENODEV;
goto out;
pd->refcnt++;
if (pd->refcnt > 1) {
- if ((file->f_mode & FMODE_WRITE) &&
+ if ((mode & FMODE_WRITE) &&
!test_bit(PACKET_WRITABLE, &pd->flags)) {
ret = -EBUSY;
goto out_dec;
}
} else {
- ret = pkt_open_dev(pd, file->f_mode & FMODE_WRITE);
+ ret = pkt_open_dev(pd, mode & FMODE_WRITE);
if (ret)
goto out_dec;
/*
* needed here as well, since ext2 (among others) may change
* the blocksize at mount time
*/
- set_blocksize(inode->i_bdev, CD_FRAMESIZE);
+ set_blocksize(bdev, CD_FRAMESIZE);
}
mutex_unlock(&ctl_mutex);
return ret;
}
-static int pkt_close(struct inode *inode, struct file *file)
+static int pkt_close(struct gendisk *disk, fmode_t mode)
{
- struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data;
+ struct pktcdvd_device *pd = disk->private_data;
int ret = 0;
mutex_lock(&ctl_mutex);
if (last_zone != zone) {
BUG_ON(last_zone != zone + pd->settings.size);
first_sectors = last_zone - bio->bi_sector;
- bp = bio_split(bio, bio_split_pool, first_sectors);
+ bp = bio_split(bio, first_sectors);
BUG_ON(!bp);
pkt_make_request(q, &bp->bio1);
pkt_make_request(q, &bp->bio2);
spin_lock(&pd->lock);
if (pd->write_congestion_on > 0
&& pd->bio_queue_size >= pd->write_congestion_on) {
- set_bdi_congested(&q->backing_dev_info, WRITE);
+ set_bdi_congested(&q->backing_dev_info, BLK_RW_ASYNC);
do {
spin_unlock(&pd->lock);
- congestion_wait(WRITE, HZ);
+ congestion_wait(BLK_RW_ASYNC, HZ);
spin_lock(&pd->lock);
} while(pd->bio_queue_size > pd->write_congestion_off);
}
-static int pkt_merge_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *bvec)
+static int pkt_merge_bvec(struct request_queue *q, struct bvec_merge_data *bmd,
+ struct bio_vec *bvec)
{
struct pktcdvd_device *pd = q->queuedata;
- sector_t zone = ZONE(bio->bi_sector, pd);
- int used = ((bio->bi_sector - zone) << 9) + bio->bi_size;
+ sector_t zone = ZONE(bmd->bi_sector, pd);
+ int used = ((bmd->bi_sector - zone) << 9) + bmd->bi_size;
int remaining = (pd->settings.size << 9) - used;
int remaining2;
* A bio <= PAGE_SIZE must be allowed. If it crosses a packet
* boundary, pkt_make_request() will split the bio.
*/
- remaining2 = PAGE_SIZE - bio->bi_size;
+ remaining2 = PAGE_SIZE - bmd->bi_size;
remaining = max(remaining, remaining2);
BUG_ON(remaining < 0);
struct request_queue *q = pd->disk->queue;
blk_queue_make_request(q, pkt_make_request);
- blk_queue_hardsect_size(q, CD_FRAMESIZE);
+ blk_queue_logical_block_size(q, CD_FRAMESIZE);
blk_queue_max_sectors(q, PACKET_MAX_SECTORS);
blk_queue_merge_bvec(q, pkt_merge_bvec);
q->queuedata = pd;
int i;
int ret = 0;
char b[BDEVNAME_SIZE];
- struct proc_dir_entry *proc;
struct block_device *bdev;
if (pd->pkt_dev == dev) {
bdev = bdget(dev);
if (!bdev)
return -ENOMEM;
- ret = blkdev_get(bdev, FMODE_READ, O_RDONLY | O_NONBLOCK);
+ ret = blkdev_get(bdev, FMODE_READ | FMODE_NDELAY);
if (ret)
return ret;
goto out_mem;
}
- proc = create_proc_entry(pd->name, 0, pkt_proc);
- if (proc) {
- proc->data = pd;
- proc->proc_fops = &pkt_proc_fops;
- }
+ proc_create_data(pd->name, 0, pkt_proc, &pkt_proc_fops, pd);
DPRINTK(DRIVER_NAME": writer %s mapped to %s\n", pd->name, bdevname(bdev, b));
return 0;
out_mem:
- blkdev_put(bdev);
+ blkdev_put(bdev, FMODE_READ | FMODE_NDELAY);
/* This is safe: open() is still holding a reference. */
module_put(THIS_MODULE);
return ret;
}
-static int pkt_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
{
- struct pktcdvd_device *pd = inode->i_bdev->bd_disk->private_data;
+ struct pktcdvd_device *pd = bdev->bd_disk->private_data;
- VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, imajor(inode), iminor(inode));
+ VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd,
+ MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
switch (cmd) {
+ case CDROMEJECT:
+ /*
+ * The door gets locked when the device is opened, so we
+ * have to unlock it or else the eject command fails.
+ */
+ if (pd->refcnt == 1)
+ pkt_lock_door(pd, 0);
+ /* fallthru */
/*
* forward selected CDROM ioctls to CD-ROM, for UDF
*/
case CDROM_LAST_WRITTEN:
case CDROM_SEND_PACKET:
case SCSI_IOCTL_SEND_COMMAND:
- return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
-
- case CDROMEJECT:
- /*
- * The door gets locked when the device is opened, so we
- * have to unlock it or else the eject command fails.
- */
- if (pd->refcnt == 1)
- pkt_lock_door(pd, 0);
- return blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg);
+ return __blkdev_driver_ioctl(pd->bdev, mode, cmd, arg);
default:
VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd);
return attached_disk->fops->media_changed(attached_disk);
}
-static struct block_device_operations pktcdvd_ops = {
+static const struct block_device_operations pktcdvd_ops = {
.owner = THIS_MODULE,
.open = pkt_open,
.release = pkt_close,
- .ioctl = pkt_ioctl,
+ .locked_ioctl = pkt_ioctl,
.media_changed = pkt_media_changed,
};
+static char *pktcdvd_devnode(struct gendisk *gd, mode_t *mode)
+{
+ return kasprintf(GFP_KERNEL, "pktcdvd/%s", gd->disk_name);
+}
+
/*
* Set up mapping from pktcdvd device to CD-ROM device.
*/
disk->fops = &pktcdvd_ops;
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
+ disk->devnode = pktcdvd_devnode;
disk->private_data = pd;
disk->queue = blk_alloc_queue(GFP_KERNEL);
if (!disk->queue)
goto out_mem2;
- pd->pkt_dev = MKDEV(disk->major, disk->first_minor);
+ pd->pkt_dev = MKDEV(pktdev_major, idx);
ret = pkt_new_dev(pd, dev);
if (ret)
goto out_new_dev;
pkt_debugfs_dev_remove(pd);
pkt_sysfs_dev_remove(pd);
- blkdev_put(pd->bdev);
+ blkdev_put(pd->bdev, FMODE_READ | FMODE_NDELAY);
remove_proc_entry(pd->name, pkt_proc);
DPRINTK(DRIVER_NAME": writer %s unmapped\n", pd->name);
static struct miscdevice pkt_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = DRIVER_NAME,
+ .nodename = "pktcdvd/control",
.fops = &pkt_ctl_fops
};
goto out_misc;
}
- pkt_proc = proc_mkdir(DRIVER_NAME, proc_root_driver);
+ pkt_proc = proc_mkdir("driver/"DRIVER_NAME, NULL);
return 0;
static void __exit pkt_exit(void)
{
- remove_proc_entry(DRIVER_NAME, proc_root_driver);
+ remove_proc_entry("driver/"DRIVER_NAME, NULL);
misc_deregister(&pkt_misc);
pkt_debugfs_cleanup();
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff