diff options
Diffstat (limited to 'drivers/block/pktcdvd.c')
| -rw-r--r-- | drivers/block/pktcdvd.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index b1cbeb59bb7..19b3568e932 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -57,7 +57,6 @@ #include <linux/seq_file.h> #include <linux/miscdevice.h> #include <linux/freezer.h> -#include <linux/smp_lock.h> #include <linux/mutex.h> #include <linux/slab.h> #include <scsi/scsi_cmnd.h> @@ -86,6 +85,7 @@ #define ZONE(sector, pd) (((sector) + (pd)->offset) & ~((pd)->settings.size - 1)) +static DEFINE_MUTEX(pktcdvd_mutex); static struct pktcdvd_device *pkt_devs[MAX_WRITERS]; static struct proc_dir_entry *pkt_proc; static int pktdev_major; @@ -753,7 +753,6 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command * rq->timeout = 60*HZ; rq->cmd_type = REQ_TYPE_BLOCK_PC; - rq->cmd_flags |= REQ_HARDBARRIER; if (cgc->quiet) rq->cmd_flags |= REQ_QUIET; @@ -2369,7 +2368,7 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush) pkt_shrink_pktlist(pd); } -static struct pktcdvd_device *pkt_find_dev_from_minor(int dev_minor) +static struct pktcdvd_device *pkt_find_dev_from_minor(unsigned int dev_minor) { if (dev_minor >= MAX_WRITERS) return NULL; @@ -2383,7 +2382,7 @@ static int pkt_open(struct block_device *bdev, fmode_t mode) VPRINTK(DRIVER_NAME": entering open\n"); - lock_kernel(); + mutex_lock(&pktcdvd_mutex); mutex_lock(&ctl_mutex); pd = pkt_find_dev_from_minor(MINOR(bdev->bd_dev)); if (!pd) { @@ -2411,7 +2410,7 @@ static int pkt_open(struct block_device *bdev, fmode_t mode) } mutex_unlock(&ctl_mutex); - unlock_kernel(); + mutex_unlock(&pktcdvd_mutex); return 0; out_dec: @@ -2419,7 +2418,7 @@ out_dec: out: VPRINTK(DRIVER_NAME": failed open (%d)\n", ret); mutex_unlock(&ctl_mutex); - unlock_kernel(); + mutex_unlock(&pktcdvd_mutex); return ret; } @@ -2428,7 +2427,7 @@ static int pkt_close(struct gendisk *disk, fmode_t mode) struct pktcdvd_device *pd = disk->private_data; int ret = 0; - lock_kernel(); + mutex_lock(&pktcdvd_mutex); mutex_lock(&ctl_mutex); pd->refcnt--; BUG_ON(pd->refcnt < 0); @@ -2437,7 +2436,7 @@ static int pkt_close(struct gendisk *disk, fmode_t mode) pkt_release_dev(pd, flush); } mutex_unlock(&ctl_mutex); - unlock_kernel(); + mutex_unlock(&pktcdvd_mutex); return ret; } @@ -2773,7 +2772,7 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, VPRINTK("pkt_ioctl: cmd %x, dev %d:%d\n", cmd, MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev)); - lock_kernel(); + mutex_lock(&pktcdvd_mutex); switch (cmd) { case CDROMEJECT: /* @@ -2798,7 +2797,7 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, VPRINTK(DRIVER_NAME": Unknown ioctl for %s (%x)\n", pd->name, cmd); ret = -ENOTTY; } - unlock_kernel(); + mutex_unlock(&pktcdvd_mutex); return ret; } @@ -3046,6 +3045,7 @@ static const struct file_operations pkt_ctl_fops = { .compat_ioctl = pkt_ctl_compat_ioctl, #endif .owner = THIS_MODULE, + .llseek = no_llseek, }; static struct miscdevice pkt_misc = { |