diff options
Diffstat (limited to 'drivers/block/loop.c')
| -rw-r--r-- | drivers/block/loop.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 1518a6423279..5f04235e4ff7 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -90,7 +90,7 @@ struct loop_cmd { }; #define LOOP_IDLE_WORKER_TIMEOUT (60 * HZ) -#define LOOP_DEFAULT_HW_Q_DEPTH (128) +#define LOOP_DEFAULT_HW_Q_DEPTH 128 static DEFINE_IDR(loop_index_idr); static DEFINE_MUTEX(loop_ctl_mutex); @@ -1792,9 +1792,15 @@ static int hw_queue_depth = LOOP_DEFAULT_HW_Q_DEPTH; static int loop_set_hw_queue_depth(const char *s, const struct kernel_param *p) { - int ret = kstrtoint(s, 10, &hw_queue_depth); + int qd, ret; - return (ret || (hw_queue_depth < 1)) ? -EINVAL : 0; + ret = kstrtoint(s, 0, &qd); + if (ret < 0) + return ret; + if (qd < 1) + return -EINVAL; + hw_queue_depth = qd; + return 0; } static const struct kernel_param_ops loop_hw_qdepth_param_ops = { @@ -1803,7 +1809,7 @@ static const struct kernel_param_ops loop_hw_qdepth_param_ops = { }; device_param_cb(hw_queue_depth, &loop_hw_qdepth_param_ops, &hw_queue_depth, 0444); -MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 128"); +MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: " __stringify(LOOP_DEFAULT_HW_Q_DEPTH)); MODULE_LICENSE("GPL"); MODULE_ALIAS_BLOCKDEV_MAJOR(LOOP_MAJOR); |