Re: [PATCH] Kprobes /proc entry

[Greg KH <greg@kroah.com>]

On Mon, Jan 17, 2005 at 05:58:00PM +0100, Luca Falavigna wrote:
> +static ssize_t kprobes_read(struct file *file, char __user *buf,
> +			 size_t size, loff_t *off)
> +{
> +	int i;
> +	char *data = "";
> +	ssize_t len = 0;
> +	struct hlist_node *node;
> +	struct kprobe *k;
> +	
> +	spin_lock(&kprobe_lock);
> +	for(i = 0; i < KPROBE_TABLE_SIZE; i++) {
> +		hlist_for_each_entry(k, node, &kprobe_table[i], hlist) {
> +			if(k) {
> +				kprobes_list_info(k, data + len);
> +				len += strlen(data);
> +			}
> +		}
> +	}
> +	spin_unlock(&kprobe_lock);
> +	return simple_read_from_buffer(buf, size, off, data, len);

Am I missing where you allocate the space for the data to be put into?

Also, why not use the seqfile interface for this, to prevent overflowing
the read buffer?

thanks,

greg k-h