On Wed, 5 Aug 2015 09:46:43 -0400 Dan Streetman <ddstreet@xxxxxxxx> wrote:
> Update the zpool and compressor parameters to be changeable at runtime.
> When changed, a new pool is created with the requested zpool/compressor,
> and added as the current pool at the front of the pool list. Previous
> pools remain in the list only to remove existing compressed pages from.
> The old pool(s) are removed once they become empty.
>
> +/*********************************
> +* param callbacks
> +**********************************/
> +
> +static int __zswap_param_set(const char *val, const struct kernel_param *kp,
> + char *type, char *compressor)
> +{
> + struct zswap_pool *pool, *put_pool = NULL;
> + char str[kp->str->maxlen], *s;
What's the upper bound on the size of this variable-sized array?
> + int ret;
> +
> + strlcpy(str, val, kp->str->maxlen);
> + s = strim(str);
> +
> + /* if this is load-time (pre-init) param setting,
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