diff options
Diffstat (limited to 'arch/um/drivers/ubd_kern.c')
| -rw-r--r-- | arch/um/drivers/ubd_kern.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 9734994cba1..ba4a98ba39c 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -33,7 +33,7 @@ #include "linux/mm.h" #include "linux/slab.h" #include "linux/vmalloc.h" -#include "linux/smp_lock.h" +#include "linux/mutex.h" #include "linux/blkpg.h" #include "linux/genhd.h" #include "linux/spinlock.h" @@ -100,6 +100,7 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data) #define DRIVER_NAME "uml-blkdev" static DEFINE_MUTEX(ubd_lock); +static DEFINE_MUTEX(ubd_mutex); /* replaces BKL, might not be needed */ static int ubd_open(struct block_device *bdev, fmode_t mode); static int ubd_release(struct gendisk *disk, fmode_t mode); @@ -1101,7 +1102,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode) struct ubd *ubd_dev = disk->private_data; int err = 0; - lock_kernel(); + mutex_lock(&ubd_mutex); if(ubd_dev->count == 0){ err = ubd_open_dev(ubd_dev); if(err){ @@ -1120,7 +1121,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode) err = -EROFS; }*/ out: - unlock_kernel(); + mutex_unlock(&ubd_mutex); return err; } @@ -1128,10 +1129,10 @@ static int ubd_release(struct gendisk *disk, fmode_t mode) { struct ubd *ubd_dev = disk->private_data; - lock_kernel(); + mutex_lock(&ubd_mutex); if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev); - unlock_kernel(); + mutex_unlock(&ubd_mutex); return 0; } |