diff options
Diffstat (limited to 'drivers/block/nbd.c')
| -rw-r--r-- | drivers/block/nbd.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 0daa422aa28..a32fb41246f 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -24,7 +24,7 @@ #include <linux/errno.h> #include <linux/file.h> #include <linux/ioctl.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include <linux/compiler.h> #include <linux/err.h> #include <linux/kernel.h> @@ -53,6 +53,7 @@ #define DBG_BLKDEV 0x0100 #define DBG_RX 0x0200 #define DBG_TX 0x0400 +static DEFINE_MUTEX(nbd_mutex); static unsigned int debugflags; #endif /* NDEBUG */ @@ -717,11 +718,11 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode, dprintk(DBG_IOCTL, "%s: nbd_ioctl cmd=%s(0x%x) arg=%lu\n", lo->disk->disk_name, ioctl_cmd_to_ascii(cmd), cmd, arg); - lock_kernel(); + mutex_lock(&nbd_mutex); mutex_lock(&lo->tx_lock); error = __nbd_ioctl(bdev, lo, cmd, arg); mutex_unlock(&lo->tx_lock); - unlock_kernel(); + mutex_unlock(&nbd_mutex); return error; } |