bo yang wrote:
> +static ssize_t
> +sysfs_max_sectors_read(struct kobject *kobj,
> + struct bin_attribute *bin_attr,
> + char *buf, loff_t off, size_t count)
> +{
> + struct Scsi_Host *host = class_to_shost(container_of(kobj,
> + struct class_device, kobj));
> + struct megasas_instance *instance =
> + (struct megasas_instance *)host->hostdata;
> +
> + count = sprintf(buf, "%u\n", instance->max_sectors_per_req);
> +
> + return count+1;
> +}
> +
> +static struct bin_attribute sysfs_max_sectors_attr = {
> + .attr = {
> + .name = "max_sectors",
> + .mode = S_IRUSR|S_IRGRP|S_IROTH,
> + .owner = THIS_MODULE,
> + },
> + .size = 7,
> + .read = sysfs_max_sectors_read,
> +};
Why is this implemented as a binary sysfs attribute? Also, can you use
the existing shost_attrs infrastructure that's in the scsi_host_template
like megaraid_mbox uses?
> +
> + /*
> + * Check if the module parameter value for max_sectors can be used
> + */
> + if (max_sectors && max_sectors <= instance->max_sectors_per_req)
> + instance->max_sectors_per_req = max_sectors;
> + else {
> + if (max_sectors)
> + printk(KERN_INFO
> + "megasas: max_sectors should be > 0 and"
> + "<= %d\n",
> + instance->max_sectors_per_req);
> + }
Could be simplified to an else if, which would remove one indent level...
-Brian
--
Brian King
Linux on Power Virtualization
IBM Linux Technology Center
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