On Wed, Mar 20, 2019 at 10:03 AM Oleg Nesterov <[email protected]> wrote:
>
> At the same time, printk_ratelimited() uses a static ratelimit_state, so user-
> space can't override the default DEFAULT_RATELIMIT_.* numbers.
>
> Isn't it strange? Shouldn't printk_ratelimited() use printk_ratelimit_state ?
No it shouldn't.
Each printk_ratelimited() is independent, and that's very much on purpose.
One screaming printk shouldn't mean that every *other* printk would be shut up.
That said, it's likely true that nobody should really use
printk_ratelimited() anyway. But if two different users do, they
definitely shouldn't then affect each other.
Linus
