X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fblock%2Fpktcdvd.c;h=99a506f619b71bcadac21608b5969931441e05cf;hb=4d62691b609cc4e66e15c8e5b2261ddb6785b7ca;hp=158eed4d516188deb82b50b9f60ddbbd502b8302;hpb=f79f060561d04a38d41e773ade9baafce3c96179;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 158eed4..99a506f 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -49,7 +49,6 @@ #include #include #include -#include #include #include #include @@ -303,9 +302,8 @@ static struct kobj_type kobj_pkt_type_wqueue = { static void pkt_sysfs_dev_new(struct pktcdvd_device *pd) { if (class_pktcdvd) { - pd->dev = device_create_drvdata(class_pktcdvd, NULL, - pd->pkt_dev, NULL, - "%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; } @@ -432,7 +430,7 @@ static void pkt_sysfs_cleanup(void) /******************************************************************** entries in debugfs - /debugfs/pktcdvd[0-7]/ + /sys/kernel/debug/pktcdvd[0-7]/ info *******************************************************************/ @@ -993,13 +991,15 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd) */ 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 @@ -1372,8 +1372,10 @@ try_next_bio: 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); @@ -2322,7 +2324,7 @@ static int pkt_open_write(struct pktcdvd_device *pd) /* * 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; @@ -2334,7 +2336,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, int write) * 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))) @@ -2383,7 +2385,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, int write) out_unclaim: bd_release(pd->bdev); out_putdev: - blkdev_put(pd->bdev); + blkdev_put(pd->bdev, FMODE_READ); out: return ret; } @@ -2401,7 +2403,7 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush) 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); } @@ -2413,7 +2415,7 @@ static struct pktcdvd_device *pkt_find_dev_from_minor(int dev_minor) 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; @@ -2421,7 +2423,7 @@ static int pkt_open(struct inode *inode, struct file *file) 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; @@ -2430,20 +2432,20 @@ static int pkt_open(struct inode *inode, struct file *file) 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); @@ -2457,9 +2459,9 @@ out: 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); @@ -2545,7 +2547,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) 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); @@ -2592,10 +2594,10 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) 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); } @@ -2659,7 +2661,7 @@ static void pkt_init_queue(struct pktcdvd_device *pd) 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; @@ -2767,7 +2769,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t 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; @@ -2792,24 +2794,28 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev) 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 long pkt_ioctl(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 inode *inode = file->f_path.dentry->d_inode; - struct pktcdvd_device *pd; - long ret; - - lock_kernel(); - 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 */ @@ -2818,25 +2824,14 @@ static long pkt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case CDROM_LAST_WRITTEN: case CDROM_SEND_PACKET: case SCSI_IOCTL_SEND_COMMAND: - ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); - break; - - 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); - ret = blkdev_ioctl(pd->bdev->bd_inode, file, cmd, arg); - break; + return __blkdev_driver_ioctl(pd->bdev, mode, cmd, arg); default: VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd); - ret = -ENOTTY; + return -ENOTTY; } - unlock_kernel(); - return ret; + + return 0; } static int pkt_media_changed(struct gendisk *disk) @@ -2858,10 +2853,15 @@ static struct block_device_operations pktcdvd_ops = { .owner = THIS_MODULE, .open = pkt_open, .release = pkt_close, - .unlocked_ioctl = pkt_ioctl, + .locked_ioctl = pkt_ioctl, .media_changed = pkt_media_changed, }; +static char *pktcdvd_nodename(struct gendisk *gd) +{ + return kasprintf(GFP_KERNEL, "pktcdvd/%s", gd->disk_name); +} + /* * Set up mapping from pktcdvd device to CD-ROM device. */ @@ -2914,12 +2914,13 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev) disk->fops = &pktcdvd_ops; disk->flags = GENHD_FL_REMOVABLE; strcpy(disk->disk_name, pd->name); + disk->nodename = pktcdvd_nodename; 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; @@ -2984,7 +2985,7 @@ static int pkt_remove_dev(dev_t pkt_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); @@ -3023,8 +3024,7 @@ static void pkt_get_status(struct pkt_ctrl_command *ctrl_cmd) mutex_unlock(&ctl_mutex); } -static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) +static int pkt_ctl_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { void __user *argp = (void __user *)arg; struct pkt_ctrl_command ctrl_cmd; @@ -3041,22 +3041,16 @@ static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, case PKT_CTRL_CMD_SETUP: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - lock_kernel(); ret = pkt_setup_dev(new_decode_dev(ctrl_cmd.dev), &pkt_dev); ctrl_cmd.pkt_dev = new_encode_dev(pkt_dev); - unlock_kernel(); break; case PKT_CTRL_CMD_TEARDOWN: if (!capable(CAP_SYS_ADMIN)) return -EPERM; - lock_kernel(); ret = pkt_remove_dev(new_decode_dev(ctrl_cmd.pkt_dev)); - unlock_kernel(); break; case PKT_CTRL_CMD_STATUS: - lock_kernel(); pkt_get_status(&ctrl_cmd); - unlock_kernel(); break; default: return -ENOTTY; @@ -3069,13 +3063,14 @@ static long pkt_ctl_ioctl(struct file *file, unsigned int cmd, static const struct file_operations pkt_ctl_fops = { - .unlocked_ioctl = pkt_ctl_ioctl, + .ioctl = pkt_ctl_ioctl, .owner = THIS_MODULE, }; static struct miscdevice pkt_misc = { .minor = MISC_DYNAMIC_MINOR, .name = DRIVER_NAME, + .name = "pktcdvd/control", .fops = &pkt_ctl_fops };