Hi Babu,
On 12/22/2022 3:31 PM, Babu Moger wrote:
...
> +static ssize_t mbm_total_bytes_config_write(struct kernfs_open_file *of,
> + char *buf, size_t nbytes,
> + loff_t off)
> +{
> + struct rdt_resource *r = of->kn->parent->priv;
> + int ret;
> +
> + /* Valid input requires a trailing newline */
> + if (nbytes == 0 || buf[nbytes - 1] != '\n')
> + return -EINVAL;
> +
> + cpus_read_lock();
Could you please elaborate why this lock is needed here as
well as in the following patch?
Reinette
