Re: [PATCH 10/13] tracing/uprobes: Fetch args before reserving aring buffer

[Oleg Nesterov]

On 11/01, Oleg Nesterov wrote:
>
> Ah, please ignore... handler_chain() is not self-serialized, so
> tu->buffer needs locking/waiting too.

Still I have to admit that I strongly dislike this yet another
(and imho strange) memory pool. However, I am not going to argue
because I can't suggest something better right now.

But. Perhaps it makes sense to at least add a couple of trivial
helpers in 10/13? Something like arg_buf_get/put/init, just to
simplify the potential changes.

Also. I think we should not use this pool unconditionally but
again, this is another improvement we can do later.

Oleg.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/