| Date | Wed, 20 Jul 2022 10:47:18 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH V6 01/16] rv: Add Runtime Verification (RV) interface |
| |
On Tue, 19 Jul 2022 19:27:06 +0200 Daniel Bristot de Oliveira <bristot@kernel.org> wrote:
> +/* > + * Interface to read the enable/disable status of a monitor. > + */ > +static ssize_t monitor_desc_read_data(struct file *filp, char __user *user_buf, size_t count, > + loff_t *ppos) > +{ > + struct rv_monitor_def *mdef = filp->private_data; > + char buff[256]; > + > + memset(buff, 0, sizeof(buff)); > + > + mutex_lock(&rv_interface_lock); > + snprintf(buff, sizeof(buff), "%s\n", mdef->monitor->description); > + mutex_unlock(&rv_interface_lock);
What exactly is the mutex protecting here?
-- Steve
> + > + return simple_read_from_buffer(user_buf, count, ppos, buff, strlen(buff) + 1); > +} > +
|